annotate src/crypt.c @ 32481:a1e1527d1cb8 v9.0.1572

patch 9.0.1572: error messages are not translated Commit: https://github.com/vim/vim/commit/50809a45ebde327cb6fdcc727d7466e926aed713 Author: Bram Moolenaar <Bram@vim.org> Date: Sat May 20 16:39:07 2023 +0100 patch 9.0.1572: error messages are not translated Problem: Error messages are not translated. Solution: Add _().
author Bram Moolenaar <Bram@vim.org>
date Sat, 20 May 2023 17:45:03 +0200
parents 6761c71f4b25
children 5d07e7e9580f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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4aead6a9b7a9 commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
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1 /* vi:set ts=8 sts=4 sw=4 noet:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 * See README.txt for an overview of the Vim source code.
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8 */
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9
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10 /*
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11 * crypt.c: Generic encryption support.
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12 */
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13 #include "vim.h"
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14
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15 #if defined(FEAT_CRYPT) || defined(PROTO)
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16 /*
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17 * Optional encryption support.
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18 * Mohsin Ahmed, mosh@sasi.com, 1998-09-24
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19 * Based on zip/crypt sources.
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20 * Refactored by David Leadbeater, 2014.
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21 *
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22 * NOTE FOR USA: Since 2000 exporting this code from the USA is allowed to
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23 * most countries. There are a few exceptions, but that still should not be a
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24 * problem since this code was originally created in Europe and India.
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25 *
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26 * Blowfish addition originally made by Mohsin Ahmed,
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27 * http://www.cs.albany.edu/~mosh 2010-03-14
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28 * Based on blowfish by Bruce Schneier (http://www.schneier.com/blowfish.html)
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29 * and sha256 by Christophe Devine.
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30 */
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31
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32 typedef struct {
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33 char *name; // encryption name as used in 'cryptmethod'
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34 char *magic; // magic bytes stored in file header
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35 int salt_len; // length of salt, or 0 when not using salt
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36 int seed_len; // length of seed, or 0 when not using seed
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37 int add_len; // additional length in the header needed for storing
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38 // custom data
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39 #ifdef CRYPT_NOT_INPLACE
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40 int works_inplace; // encryption/decryption can be done in-place
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41 #endif
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42 int whole_undofile; // whole undo file is encrypted
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43
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44 // Optional function pointer for a self-test.
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45 int (*self_test_fn)(void);
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46
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47 // Function pointer for initializing encryption/decryption.
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48 int (* init_fn)(cryptstate_T *state, char_u *key, crypt_arg_T *arg);
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49
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50 // Function pointers for encoding/decoding from one buffer into another.
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51 // Optional, however, these or the _buffer ones should be configured.
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52 void (*encode_fn)(cryptstate_T *state, char_u *from, size_t len,
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53 char_u *to, int last);
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54 void (*decode_fn)(cryptstate_T *state, char_u *from, size_t len,
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55 char_u *to, int last);
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56
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57 // Function pointers for encoding and decoding, can buffer data if needed.
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58 // Optional (however, these or the above should be configured).
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59 long (*encode_buffer_fn)(cryptstate_T *state, char_u *from, size_t len,
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60 char_u **newptr, int last);
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61 long (*decode_buffer_fn)(cryptstate_T *state, char_u *from, size_t len,
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62 char_u **newptr, int last);
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63
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64 // Function pointers for in-place encoding and decoding, used for
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65 // crypt_*_inplace(). "from" and "to" arguments will be equal.
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66 // These may be the same as decode_fn and encode_fn above, however an
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67 // algorithm may implement them in a way that is not interchangeable with
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68 // the crypt_(en|de)code() interface (for example because it wishes to add
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69 // padding to files).
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70 // This method is used for swap and undo files which have a rigid format.
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71 void (*encode_inplace_fn)(cryptstate_T *state, char_u *p1, size_t len,
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72 char_u *p2, int last);
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73 void (*decode_inplace_fn)(cryptstate_T *state, char_u *p1, size_t len,
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74 char_u *p2, int last);
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75 } cryptmethod_T;
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76
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77 static int crypt_sodium_init_(cryptstate_T *state, char_u *key, crypt_arg_T *arg);
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78 static long crypt_sodium_buffer_decode(cryptstate_T *state, char_u *from, size_t len, char_u **buf_out, int last);
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79 static long crypt_sodium_buffer_encode(cryptstate_T *state, char_u *from, size_t len, char_u **buf_out, int last);
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80 #if defined(FEAT_EVAL) && defined(FEAT_SODIUM)
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81 static void crypt_sodium_report_hash_params(unsigned long long opslimit, unsigned long long ops_def, size_t memlimit, size_t mem_def, int alg, int alg_def);
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82 #endif
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83
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84 // index is method_nr of cryptstate_T, CRYPT_M_*
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85 static cryptmethod_T cryptmethods[CRYPT_M_COUNT] = {
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86 // PK_Zip; very weak
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87 {
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88 "zip",
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89 "VimCrypt~01!",
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90 0,
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91 0,
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92 0,
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93 #ifdef CRYPT_NOT_INPLACE
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94 TRUE,
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95 #endif
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96 FALSE,
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97 NULL,
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98 crypt_zip_init,
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99 crypt_zip_encode, crypt_zip_decode,
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100 NULL, NULL,
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101 crypt_zip_encode, crypt_zip_decode,
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102 },
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103
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104 // Blowfish/CFB + SHA-256 custom key derivation; implementation issues.
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105 {
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106 "blowfish",
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107 "VimCrypt~02!",
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108 8,
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109 8,
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110 0,
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111 #ifdef CRYPT_NOT_INPLACE
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112 TRUE,
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113 #endif
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114 FALSE,
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115 blowfish_self_test,
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116 crypt_blowfish_init,
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117 crypt_blowfish_encode, crypt_blowfish_decode,
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118 NULL, NULL,
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119 crypt_blowfish_encode, crypt_blowfish_decode,
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120 },
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121
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122 // Blowfish/CFB + SHA-256 custom key derivation; fixed.
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123 {
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124 "blowfish2",
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125 "VimCrypt~03!",
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126 8,
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127 8,
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128 0,
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129 #ifdef CRYPT_NOT_INPLACE
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130 TRUE,
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131 #endif
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132 TRUE,
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133 blowfish_self_test,
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134 crypt_blowfish_init,
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135 crypt_blowfish_encode, crypt_blowfish_decode,
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136 NULL, NULL,
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137 crypt_blowfish_encode, crypt_blowfish_decode,
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138 },
13244
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139
32299
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140 // XChaCha20 using libsodium; implementation issues
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141 {
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142 "xchacha20",
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143 "VimCrypt~04!",
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144 #ifdef FEAT_SODIUM
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145 crypto_pwhash_argon2id_SALTBYTES, // 16
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146 #else
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147 16,
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148 #endif
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149 8,
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150 0,
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151 #ifdef CRYPT_NOT_INPLACE
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152 FALSE,
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153 #endif
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154 FALSE,
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155 NULL,
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156 crypt_sodium_init_,
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157 NULL, NULL,
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158 crypt_sodium_buffer_encode, crypt_sodium_buffer_decode,
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159 NULL, NULL,
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160 },
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161 // XChaCha20 using libsodium; stores parameters in header
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162 {
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163 "xchacha20v2",
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164 "VimCrypt~05!",
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165 #ifdef FEAT_SODIUM
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166 crypto_pwhash_argon2id_SALTBYTES, // 16
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167 #else
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168 16,
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169 #endif
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170 8,
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171 // sizeof(crypto_pwhash_OPSLIMIT_INTERACTIVE + crypto_pwhash_MEMLIMIT_INTERACTIVE + crypto_pwhash_ALG_DEFAULT)
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172 20,
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173 #ifdef CRYPT_NOT_INPLACE
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174 FALSE,
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175 #endif
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176 FALSE,
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177 NULL,
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178 crypt_sodium_init_,
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179 NULL, NULL,
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180 crypt_sodium_buffer_encode, crypt_sodium_buffer_decode,
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181 NULL, NULL,
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182 },
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183
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184 // NOTE: when adding a new method, use some random bytes for the magic key,
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185 // to avoid that a text file is recognized as encrypted.
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186 };
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187
32009
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188 #if defined(FEAT_SODIUM) || defined(PROTO)
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189 typedef struct {
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190 size_t count;
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191 unsigned char key[crypto_box_SEEDBYTES];
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192 // 32, same as crypto_secretstream_xchacha20poly1305_KEYBYTES
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193 crypto_secretstream_xchacha20poly1305_state
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194 state;
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195 } sodium_state_T;
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196
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197
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198 # ifdef DYNAMIC_SODIUM
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199 # ifdef MSWIN
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200 # define SODIUM_PROC FARPROC
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201 # define load_dll vimLoadLib
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202 # define symbol_from_dll GetProcAddress
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203 # define close_dll FreeLibrary
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204 # define load_dll_error GetWin32Error
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205 # else
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206 # error Dynamic loading of libsodium is not supported for now.
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207 //# define HINSTANCE void*
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208 //# define SODIUM_PROC void*
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209 //# define load_dll(n) dlopen((n), RTLD_LAZY|RTLD_GLOBAL)
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210 //# define symbol_from_dll dlsym
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211 //# define close_dll dlclose
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212 //# define load_dll_error dlerror
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213 # endif
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214
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215 # define sodium_init load_sodium
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216 # define sodium_free dll_sodium_free
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217 # define sodium_malloc dll_sodium_malloc
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218 # define sodium_memzero dll_sodium_memzero
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219 # define sodium_mlock dll_sodium_mlock
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220 # define sodium_munlock dll_sodium_munlock
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221 # define crypto_secretstream_xchacha20poly1305_init_push \
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222 dll_crypto_secretstream_xchacha20poly1305_init_push
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223 # define crypto_secretstream_xchacha20poly1305_push \
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224 dll_crypto_secretstream_xchacha20poly1305_push
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225 # define crypto_secretstream_xchacha20poly1305_init_pull \
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226 dll_crypto_secretstream_xchacha20poly1305_init_pull
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227 # define crypto_secretstream_xchacha20poly1305_pull \
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228 dll_crypto_secretstream_xchacha20poly1305_pull
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229 # define crypto_pwhash dll_crypto_pwhash
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230 # define randombytes_buf dll_randombytes_buf
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231 # define randombytes_random dll_randombytes_random
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232
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233 static int (*dll_sodium_init)(void) = NULL;
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234 static void (*dll_sodium_free)(void *) = NULL;
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235 static void *(*dll_sodium_malloc)(const size_t) = NULL;
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236 static void (*dll_sodium_memzero)(void * const, const size_t) = NULL;
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237 static int (*dll_sodium_mlock)(void * const, const size_t) = NULL;
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238 static int (*dll_sodium_munlock)(void * const, const size_t) = NULL;
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diff changeset
239 static int (*dll_crypto_secretstream_xchacha20poly1305_init_push)
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240 (crypto_secretstream_xchacha20poly1305_state *state,
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diff changeset
241 unsigned char [],
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diff changeset
242 const unsigned char []) = NULL;
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diff changeset
243 static int (*dll_crypto_secretstream_xchacha20poly1305_push)
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244 (crypto_secretstream_xchacha20poly1305_state *state,
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diff changeset
245 unsigned char *c, unsigned long long *clen_p,
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246 const unsigned char *m, unsigned long long mlen,
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247 const unsigned char *ad, unsigned long long adlen, unsigned char tag)
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248 = NULL;
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diff changeset
249 static int (*dll_crypto_secretstream_xchacha20poly1305_init_pull)
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250 (crypto_secretstream_xchacha20poly1305_state *state,
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diff changeset
251 const unsigned char [],
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diff changeset
252 const unsigned char []) = NULL;
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diff changeset
253 static int (*dll_crypto_secretstream_xchacha20poly1305_pull)
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diff changeset
254 (crypto_secretstream_xchacha20poly1305_state *state,
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diff changeset
255 unsigned char *m, unsigned long long *mlen_p, unsigned char *tag_p,
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diff changeset
256 const unsigned char *c, unsigned long long clen,
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diff changeset
257 const unsigned char *ad, unsigned long long adlen) = NULL;
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diff changeset
258 static int (*dll_crypto_pwhash)(unsigned char * const out,
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diff changeset
259 unsigned long long outlen,
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diff changeset
260 const char * const passwd, unsigned long long passwdlen,
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diff changeset
261 const unsigned char * const salt,
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diff changeset
262 unsigned long long opslimit, size_t memlimit, int alg)
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diff changeset
263 = NULL;
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diff changeset
264 static void (*dll_randombytes_buf)(void * const buf, const size_t size);
31379
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
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parents: 29320
diff changeset
265 static uint32_t (*dll_randombytes_random)(void);
27231
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diff changeset
266
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diff changeset
267 static struct {
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diff changeset
268 const char *name;
27657
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diff changeset
269 SODIUM_PROC *ptr;
27231
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diff changeset
270 } sodium_funcname_table[] = {
27657
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diff changeset
271 {"sodium_init", (SODIUM_PROC*)&dll_sodium_init},
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diff changeset
272 {"sodium_free", (SODIUM_PROC*)&dll_sodium_free},
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diff changeset
273 {"sodium_malloc", (SODIUM_PROC*)&dll_sodium_malloc},
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diff changeset
274 {"sodium_memzero", (SODIUM_PROC*)&dll_sodium_memzero},
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diff changeset
275 {"sodium_mlock", (SODIUM_PROC*)&dll_sodium_mlock},
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diff changeset
276 {"sodium_munlock", (SODIUM_PROC*)&dll_sodium_munlock},
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diff changeset
277 {"crypto_secretstream_xchacha20poly1305_init_push", (SODIUM_PROC*)&dll_crypto_secretstream_xchacha20poly1305_init_push},
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diff changeset
278 {"crypto_secretstream_xchacha20poly1305_push", (SODIUM_PROC*)&dll_crypto_secretstream_xchacha20poly1305_push},
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diff changeset
279 {"crypto_secretstream_xchacha20poly1305_init_pull", (SODIUM_PROC*)&dll_crypto_secretstream_xchacha20poly1305_init_pull},
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diff changeset
280 {"crypto_secretstream_xchacha20poly1305_pull", (SODIUM_PROC*)&dll_crypto_secretstream_xchacha20poly1305_pull},
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diff changeset
281 {"crypto_pwhash", (SODIUM_PROC*)&dll_crypto_pwhash},
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282 {"randombytes_buf", (SODIUM_PROC*)&dll_randombytes_buf},
31379
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283 {"randombytes_random", (SODIUM_PROC*)&dll_randombytes_random},
27231
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diff changeset
284 {NULL, NULL}
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diff changeset
285 };
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diff changeset
286
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diff changeset
287 static int
27657
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diff changeset
288 sodium_runtime_link_init(int verbose)
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diff changeset
289 {
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diff changeset
290 static HINSTANCE hsodium = NULL;
27998
ef7d9789919d patch 8.2.4524: MS-Windows: cannot build with some sodium libraries
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diff changeset
291 const char *libname = DYNAMIC_SODIUM_DLL;
27657
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diff changeset
292 int i;
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diff changeset
293
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diff changeset
294 if (hsodium != NULL)
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diff changeset
295 return OK;
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diff changeset
296
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diff changeset
297 hsodium = load_dll(libname);
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298 if (hsodium == NULL)
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diff changeset
299 {
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diff changeset
300 if (verbose)
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diff changeset
301 semsg(_(e_could_not_load_library_str_str), libname, load_dll_error());
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302 return FAIL;
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diff changeset
303 }
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diff changeset
304
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diff changeset
305 for (i = 0; sodium_funcname_table[i].ptr; ++i)
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diff changeset
306 {
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diff changeset
307 if ((*sodium_funcname_table[i].ptr = symbol_from_dll(hsodium,
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diff changeset
308 sodium_funcname_table[i].name)) == NULL)
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diff changeset
309 {
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diff changeset
310 close_dll(hsodium);
27657
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diff changeset
311 hsodium = NULL;
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diff changeset
312 if (verbose)
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diff changeset
313 semsg(_(e_could_not_load_library_function_str), sodium_funcname_table[i].name);
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314 return FAIL;
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diff changeset
315 }
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diff changeset
316 }
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diff changeset
317 return OK;
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diff changeset
318 }
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diff changeset
319
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diff changeset
320 static int
27231
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diff changeset
321 load_sodium(void)
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diff changeset
322 {
27657
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diff changeset
323 if (sodium_runtime_link_init(TRUE) == FAIL)
27231
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diff changeset
324 return -1;
27657
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diff changeset
325 return dll_sodium_init();
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diff changeset
326 }
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diff changeset
327 # endif
27231
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diff changeset
328
27657
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diff changeset
329 # if defined(DYNAMIC_SODIUM) || defined(PROTO)
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diff changeset
330 int
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diff changeset
331 sodium_enabled(int verbose)
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diff changeset
332 {
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diff changeset
333 return sodium_runtime_link_init(verbose) == OK;
27231
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
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diff changeset
334 }
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
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diff changeset
335 # endif
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
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parents: 18757
diff changeset
336 #endif
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
337
18757
c469e1930456 patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents: 18498
diff changeset
338 #define CRYPT_MAGIC_LEN 12 // cannot change
6122
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diff changeset
339 static char crypt_magic_head[] = "VimCrypt~";
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diff changeset
340
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diff changeset
341 /*
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parents:
diff changeset
342 * Return int value for crypt method name.
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parents:
diff changeset
343 * 0 for "zip", the old method. Also for any non-valid value.
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344 * 1 for "blowfish".
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diff changeset
345 * 2 for "blowfish2".
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346 */
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diff changeset
347 int
7817
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Christian Brabandt <cb@256bit.org>
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diff changeset
348 crypt_method_nr_from_name(char_u *name)
6122
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diff changeset
349 {
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diff changeset
350 int i;
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parents:
diff changeset
351
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352 for (i = 0; i < CRYPT_M_COUNT; ++i)
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diff changeset
353 if (STRCMP(name, cryptmethods[i].name) == 0)
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parents:
diff changeset
354 return i;
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parents:
diff changeset
355 return 0;
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parents:
diff changeset
356 }
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parents:
diff changeset
357
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parents:
diff changeset
358 /*
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parents:
diff changeset
359 * Get the crypt method used for a file from "ptr[len]", the magic text at the
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parents:
diff changeset
360 * start of the file.
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parents:
diff changeset
361 * Returns -1 when no encryption used.
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diff changeset
362 */
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diff changeset
363 int
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Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
364 crypt_method_nr_from_magic(char *ptr, int len)
6122
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parents:
diff changeset
365 {
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diff changeset
366 int i;
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parents:
diff changeset
367
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parents:
diff changeset
368 if (len < CRYPT_MAGIC_LEN)
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diff changeset
369 return -1;
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parents:
diff changeset
370
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diff changeset
371 for (i = 0; i < CRYPT_M_COUNT; i++)
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parents:
diff changeset
372 if (memcmp(ptr, cryptmethods[i].magic, CRYPT_MAGIC_LEN) == 0)
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parents:
diff changeset
373 return i;
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parents:
diff changeset
374
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parents:
diff changeset
375 i = (int)STRLEN(crypt_magic_head);
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diff changeset
376 if (len >= i && memcmp(ptr, crypt_magic_head, i) == 0)
26962
85866e069c24 patch 8.2.4010: error messages are spread out
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parents: 25417
diff changeset
377 emsg(_(e_file_is_encrypted_with_unknown_method));
6122
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parents:
diff changeset
378
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parents:
diff changeset
379 return -1;
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parents:
diff changeset
380 }
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parents:
diff changeset
381
15531
959cf4c63b18 patch 8.1.0773: not all crypt code is tested
Bram Moolenaar <Bram@vim.org>
parents: 15470
diff changeset
382 #ifdef CRYPT_NOT_INPLACE
6122
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parents:
diff changeset
383 /*
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parents:
diff changeset
384 * Return TRUE if the crypt method for "method_nr" can be done in-place.
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parents:
diff changeset
385 */
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diff changeset
386 int
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Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
387 crypt_works_inplace(cryptstate_T *state)
6122
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diff changeset
388 {
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diff changeset
389 return cryptmethods[state->method_nr].works_inplace;
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parents:
diff changeset
390 }
15531
959cf4c63b18 patch 8.1.0773: not all crypt code is tested
Bram Moolenaar <Bram@vim.org>
parents: 15470
diff changeset
391 #endif
6122
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parents:
diff changeset
392
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
393 /*
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
394 * Get the crypt method for buffer "buf" as a number.
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
395 */
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
396 int
7817
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Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
397 crypt_get_method_nr(buf_T *buf)
6122
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diff changeset
398 {
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parents:
diff changeset
399 return crypt_method_nr_from_name(*buf->b_p_cm == NUL ? p_cm : buf->b_p_cm);
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parents:
diff changeset
400 }
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
401
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
402 /*
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
403 * Returns True for Sodium Encryption.
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
404 */
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
405 int
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
406 crypt_method_is_sodium(int method)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
407 {
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
408 return method == CRYPT_M_SOD || method == CRYPT_M_SOD2;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
409 }
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
410
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
411 /*
6122
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parents:
diff changeset
412 * Return TRUE when the buffer uses an encryption method that encrypts the
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
413 * whole undo file, not only the text.
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
414 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
415 int
7817
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Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
416 crypt_whole_undofile(int method_nr)
6122
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parents:
diff changeset
417 {
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parents:
diff changeset
418 return cryptmethods[method_nr].whole_undofile;
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
419 }
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
420
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
421 /*
18498
9e6d5a4abb1c patch 8.1.2243: typos in comments
Bram Moolenaar <Bram@vim.org>
parents: 16825
diff changeset
422 * Get crypt method specific length of the file header in bytes.
6122
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parents:
diff changeset
423 */
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parents:
diff changeset
424 int
7817
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Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
425 crypt_get_header_len(int method_nr)
6122
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parents:
diff changeset
426 {
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
427 return CRYPT_MAGIC_LEN
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
428 + cryptmethods[method_nr].salt_len
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
429 + cryptmethods[method_nr].seed_len
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
430 + cryptmethods[method_nr].add_len;
6122
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parents:
diff changeset
431 }
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
432
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
433
27018
268f6a3511df patch 8.2.4038: various code not used when features are disabled
Bram Moolenaar <Bram@vim.org>
parents: 26962
diff changeset
434 #if defined(FEAT_SODIUM) || defined(PROTO)
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
435 /*
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
436 * Get maximum crypt method specific length of the file header in bytes.
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
437 */
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
438 int
32009
4545f58c8490 patch 9.0.1336: functions without arguments are not always declared properly
Bram Moolenaar <Bram@vim.org>
parents: 31379
diff changeset
439 crypt_get_max_header_len(void)
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
440 {
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
441 int i;
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
442 int max = 0;
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
443 int temp = 0;
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
444
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
445 for (i = 0; i < CRYPT_M_COUNT; ++i)
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
446 {
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
447 temp = crypt_get_header_len(i);
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
448 if (temp > max)
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
449 max = temp;
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
450 }
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
451 return max;
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
452 }
27018
268f6a3511df patch 8.2.4038: various code not used when features are disabled
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parents: 26962
diff changeset
453 #endif
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
454
6122
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parents:
diff changeset
455 /*
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parents:
diff changeset
456 * Set the crypt method for buffer "buf" to "method_nr" using the int value as
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
457 * returned by crypt_method_nr_from_name().
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parents:
diff changeset
458 */
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
459 void
7817
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Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
460 crypt_set_cm_option(buf_T *buf, int method_nr)
6122
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parents:
diff changeset
461 {
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parents:
diff changeset
462 free_string_option(buf->b_p_cm);
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parents:
diff changeset
463 buf->b_p_cm = vim_strsave((char_u *)cryptmethods[method_nr].name);
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
464 }
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
465
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
466 /*
18ac55444b37 updated for version 7.4.399
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parents:
diff changeset
467 * If the crypt method for the current buffer has a self-test, run it and
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
468 * return OK/FAIL.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
469 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
470 int
7817
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Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
471 crypt_self_test(void)
6122
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parents:
diff changeset
472 {
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
473 int method_nr = crypt_get_method_nr(curbuf);
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
474
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
475 if (cryptmethods[method_nr].self_test_fn == NULL)
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
476 return OK;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
477 return cryptmethods[method_nr].self_test_fn();
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
478 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
479
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
480 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
481 * Allocate a crypt state and initialize it.
16429
a1229400434a patch 8.1.1219: not checking for NULL return from alloc()
Bram Moolenaar <Bram@vim.org>
parents: 16378
diff changeset
482 * Return NULL for failure.
6122
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
483 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
484 cryptstate_T *
7817
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Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
485 crypt_create(
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
486 int method_nr,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
487 char_u *key,
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
488 crypt_arg_T *crypt_arg)
6122
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
489 {
16825
ce04ebdf26b8 patch 8.1.1414: alloc() returning "char_u *" causes a lot of type casts
Bram Moolenaar <Bram@vim.org>
parents: 16782
diff changeset
490 cryptstate_T *state = ALLOC_ONE(cryptstate_T);
6122
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
491
16429
a1229400434a patch 8.1.1219: not checking for NULL return from alloc()
Bram Moolenaar <Bram@vim.org>
parents: 16378
diff changeset
492 if (state == NULL)
a1229400434a patch 8.1.1219: not checking for NULL return from alloc()
Bram Moolenaar <Bram@vim.org>
parents: 16378
diff changeset
493 return state;
a1229400434a patch 8.1.1219: not checking for NULL return from alloc()
Bram Moolenaar <Bram@vim.org>
parents: 16378
diff changeset
494
6122
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parents:
diff changeset
495 state->method_nr = method_nr;
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
496 if (cryptmethods[method_nr].init_fn(state, key, crypt_arg) == FAIL)
16429
a1229400434a patch 8.1.1219: not checking for NULL return from alloc()
Bram Moolenaar <Bram@vim.org>
parents: 16378
diff changeset
497 {
28809
d0241e74bfdb patch 8.2.4928: various white space and cosmetic mistakes
Bram Moolenaar <Bram@vim.org>
parents: 28457
diff changeset
498 vim_free(state);
d0241e74bfdb patch 8.2.4928: various white space and cosmetic mistakes
Bram Moolenaar <Bram@vim.org>
parents: 28457
diff changeset
499 return NULL;
16429
a1229400434a patch 8.1.1219: not checking for NULL return from alloc()
Bram Moolenaar <Bram@vim.org>
parents: 16378
diff changeset
500 }
6122
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
501 return state;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
502 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
503
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
504 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
505 * Allocate a crypt state from a file header and initialize it.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
506 * Assumes that header contains at least the number of bytes that
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
507 * crypt_get_header_len() returns for "method_nr".
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
508 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
509 cryptstate_T *
7817
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Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
510 crypt_create_from_header(
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
511 int method_nr,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
512 char_u *key,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
513 char_u *header)
6122
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
514 {
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
515 crypt_arg_T arg;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
516
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
517 CLEAR_FIELD(arg);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
518 arg.cat_init_from_file = TRUE;
6122
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Bram Moolenaar <bram@vim.org>
parents:
diff changeset
519
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
520 arg.cat_salt_len = cryptmethods[method_nr].salt_len;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
521 arg.cat_seed_len = cryptmethods[method_nr].seed_len;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
522 arg.cat_add_len = cryptmethods[method_nr].add_len;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
523 if (arg.cat_salt_len > 0)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
524 arg.cat_salt = header + CRYPT_MAGIC_LEN;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
525 if (arg.cat_seed_len > 0)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
526 arg.cat_seed = header + CRYPT_MAGIC_LEN + arg.cat_salt_len;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
527 if (arg.cat_add_len > 0)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
528 arg.cat_add = header + CRYPT_MAGIC_LEN + arg.cat_salt_len + arg.cat_seed_len;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
529
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
530 return crypt_create(method_nr, key, &arg);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
531 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
532
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
533 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
534 * Read the crypt method specific header data from "fp".
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
535 * Return an allocated cryptstate_T or NULL on error.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
536 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
537 cryptstate_T *
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
538 crypt_create_from_file(FILE *fp, char_u *key)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
539 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
540 int method_nr;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
541 int header_len;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
542 char magic_buffer[CRYPT_MAGIC_LEN];
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
543 char_u *buffer;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
544 cryptstate_T *state;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
545
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
546 if (fread(magic_buffer, CRYPT_MAGIC_LEN, 1, fp) != 1)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
547 return NULL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
548 method_nr = crypt_method_nr_from_magic(magic_buffer, CRYPT_MAGIC_LEN);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
549 if (method_nr < 0)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
550 return NULL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
551
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
552 header_len = crypt_get_header_len(method_nr);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
553 if ((buffer = alloc(header_len)) == NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
554 return NULL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
555 mch_memmove(buffer, magic_buffer, CRYPT_MAGIC_LEN);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
556 if (header_len > CRYPT_MAGIC_LEN
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
557 && fread(buffer + CRYPT_MAGIC_LEN,
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
558 header_len - CRYPT_MAGIC_LEN, 1, fp) != 1)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
559 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
560 vim_free(buffer);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
561 return NULL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
562 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
563
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
564 state = crypt_create_from_header(method_nr, key, buffer);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
565 vim_free(buffer);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
566 return state;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
567 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
568
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
569 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
570 * Allocate a cryptstate_T for writing and initialize it with "key".
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
571 * Allocates and fills in the header and stores it in "header", setting
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
572 * "header_len". The header may include salt and seed, depending on
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
573 * cryptmethod. Caller must free header.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
574 * Returns the state or NULL on failure.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
575 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
576 cryptstate_T *
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
577 crypt_create_for_writing(
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
578 int method_nr,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
579 char_u *key,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
580 char_u **header,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
581 int *header_len)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
582 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
583 int len = crypt_get_header_len(method_nr);
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
584 crypt_arg_T arg;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
585 cryptstate_T *state;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
586
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
587 CLEAR_FIELD(arg);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
588 arg.cat_salt_len = cryptmethods[method_nr].salt_len;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
589 arg.cat_seed_len = cryptmethods[method_nr].seed_len;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
590 arg.cat_add_len = cryptmethods[method_nr].add_len;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
591 arg.cat_init_from_file = FALSE;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
592
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
593 *header_len = len;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
594 *header = alloc(len);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
595 if (*header == NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
596 return NULL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
597
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
598 mch_memmove(*header, cryptmethods[method_nr].magic, CRYPT_MAGIC_LEN);
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
599 if (arg.cat_salt_len > 0 || arg.cat_seed_len > 0 || arg.cat_add_len > 0)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
600 {
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
601 if (arg.cat_salt_len > 0)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
602 arg.cat_salt = *header + CRYPT_MAGIC_LEN;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
603 if (arg.cat_seed_len > 0)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
604 arg.cat_seed = *header + CRYPT_MAGIC_LEN + arg.cat_salt_len;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
605 if (arg.cat_add_len > 0)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
606 arg.cat_add = *header + CRYPT_MAGIC_LEN + arg.cat_salt_len + arg.cat_seed_len;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
607
18757
c469e1930456 patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents: 18498
diff changeset
608 // TODO: Should this be crypt method specific? (Probably not worth
c469e1930456 patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents: 18498
diff changeset
609 // it). sha2_seed is pretty bad for large amounts of entropy, so make
c469e1930456 patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents: 18498
diff changeset
610 // that into something which is suitable for anything.
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
611 #ifdef FEAT_SODIUM
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
612 if (sodium_init() >= 0)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
613 {
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
614 if (arg.cat_salt_len > 0)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
615 randombytes_buf(arg.cat_salt, arg.cat_salt_len);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
616 if (arg.cat_seed_len > 0)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
617 randombytes_buf(arg.cat_seed, arg.cat_seed_len);
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
618 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
619 else
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
620 #endif
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
621 sha2_seed(arg.cat_salt, arg.cat_salt_len, arg.cat_seed, arg.cat_seed_len);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
622 }
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
623 state = crypt_create(method_nr, key, &arg);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
624 if (state == NULL)
13244
ac42c4b11dbc patch 8.0.1496: clearing a pointer takes two lines
Christian Brabandt <cb@256bit.org>
parents: 10042
diff changeset
625 VIM_CLEAR(*header);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
626 return state;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
627 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
628
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
629 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
630 * Free the crypt state.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
631 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
632 void
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
633 crypt_free_state(cryptstate_T *state)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
634 {
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
635 #ifdef FEAT_SODIUM
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
636 if (crypt_method_is_sodium(state->method_nr))
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
637 {
25417
1919361a53da patch 8.2.3245: the crypt key may appear in a swap partition
Bram Moolenaar <Bram@vim.org>
parents: 25362
diff changeset
638 sodium_munlock(((sodium_state_T *)state->method_state)->key,
1919361a53da patch 8.2.3245: the crypt key may appear in a swap partition
Bram Moolenaar <Bram@vim.org>
parents: 25362
diff changeset
639 crypto_box_SEEDBYTES);
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
640 sodium_memzero(state->method_state, sizeof(sodium_state_T));
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
641 sodium_free(state->method_state);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
642 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
643 else
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
644 #endif
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
645 vim_free(state->method_state);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
646 vim_free(state);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
647 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
648
15531
959cf4c63b18 patch 8.1.0773: not all crypt code is tested
Bram Moolenaar <Bram@vim.org>
parents: 15470
diff changeset
649 #ifdef CRYPT_NOT_INPLACE
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
650 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
651 * Encode "from[len]" and store the result in a newly allocated buffer, which
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
652 * is stored in "newptr".
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
653 * Return number of bytes in "newptr", 0 for need more or -1 on error.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
654 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
655 long
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
656 crypt_encode_alloc(
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
657 cryptstate_T *state,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
658 char_u *from,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
659 size_t len,
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
660 char_u **newptr,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
661 int last)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
662 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
663 cryptmethod_T *method = &cryptmethods[state->method_nr];
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
664
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
665 if (method->encode_buffer_fn != NULL)
18757
c469e1930456 patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents: 18498
diff changeset
666 // Has buffer function, pass through.
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
667 return method->encode_buffer_fn(state, from, len, newptr, last);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
668 if (len == 0)
18757
c469e1930456 patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents: 18498
diff changeset
669 // Not buffering, just return EOF.
6132
0242c27e40e1 updated for version 7.4.404
Bram Moolenaar <bram@vim.org>
parents: 6122
diff changeset
670 return (long)len;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
671
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
672 *newptr = alloc(len + 50);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
673 if (*newptr == NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
674 return -1;
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
675 method->encode_fn(state, from, len, *newptr, last);
6132
0242c27e40e1 updated for version 7.4.404
Bram Moolenaar <bram@vim.org>
parents: 6122
diff changeset
676 return (long)len;
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
677 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
678
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
679 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
680 * Decrypt "ptr[len]" and store the result in a newly allocated buffer, which
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
681 * is stored in "newptr".
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
682 * Return number of bytes in "newptr", 0 for need more or -1 on error.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
683 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
684 long
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
685 crypt_decode_alloc(
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
686 cryptstate_T *state,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
687 char_u *ptr,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
688 long len,
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
689 char_u **newptr,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
690 int last)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
691 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
692 cryptmethod_T *method = &cryptmethods[state->method_nr];
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
693
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
694 if (method->decode_buffer_fn != NULL)
18757
c469e1930456 patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents: 18498
diff changeset
695 // Has buffer function, pass through.
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
696 return method->decode_buffer_fn(state, ptr, len, newptr, last);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
697
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
698 if (len == 0)
18757
c469e1930456 patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents: 18498
diff changeset
699 // Not buffering, just return EOF.
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
700 return len;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
701
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
702 *newptr = alloc(len);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
703 if (*newptr == NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
704 return -1;
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
705 method->decode_fn(state, ptr, len, *newptr, last);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
706 return len;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
707 }
15531
959cf4c63b18 patch 8.1.0773: not all crypt code is tested
Bram Moolenaar <Bram@vim.org>
parents: 15470
diff changeset
708 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
709
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
710 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
711 * Encrypting "from[len]" into "to[len]".
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
712 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
713 void
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
714 crypt_encode(
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
715 cryptstate_T *state,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
716 char_u *from,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
717 size_t len,
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
718 char_u *to,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
719 int last)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
720 {
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
721 cryptmethods[state->method_nr].encode_fn(state, from, len, to, last);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
722 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
723
15531
959cf4c63b18 patch 8.1.0773: not all crypt code is tested
Bram Moolenaar <Bram@vim.org>
parents: 15470
diff changeset
724 #if 0 // unused
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
725 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
726 * decrypting "from[len]" into "to[len]".
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
727 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
728 void
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
729 crypt_decode(
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
730 cryptstate_T *state,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
731 char_u *from,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
732 size_t len,
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
733 char_u *to,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
734 int last)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
735 {
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
736 cryptmethods[state->method_nr].decode_fn(state, from, len, to, last);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
737 }
15531
959cf4c63b18 patch 8.1.0773: not all crypt code is tested
Bram Moolenaar <Bram@vim.org>
parents: 15470
diff changeset
738 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
739
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
740 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
741 * Simple inplace encryption, modifies "buf[len]" in place.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
742 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
743 void
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
744 crypt_encode_inplace(
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
745 cryptstate_T *state,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
746 char_u *buf,
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
747 size_t len,
28809
d0241e74bfdb patch 8.2.4928: various white space and cosmetic mistakes
Bram Moolenaar <Bram@vim.org>
parents: 28457
diff changeset
748 int last)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
749 {
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
750 cryptmethods[state->method_nr].encode_inplace_fn(state, buf, len,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
751 buf, last);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
752 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
753
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
754 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
755 * Simple inplace decryption, modifies "buf[len]" in place.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
756 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
757 void
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
758 crypt_decode_inplace(
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
759 cryptstate_T *state,
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
760 char_u *buf,
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
761 size_t len,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
762 int last)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
763 {
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
764 cryptmethods[state->method_nr].decode_inplace_fn(state, buf, len,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
765 buf, last);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
766 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
767
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
768 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
769 * Free an allocated crypt key. Clear the text to make sure it doesn't stay
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
770 * in memory anywhere.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
771 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
772 void
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
773 crypt_free_key(char_u *key)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
774 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
775 char_u *p;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
776
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
777 if (key != NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
778 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
779 for (p = key; *p != NUL; ++p)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
780 *p = 0;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
781 vim_free(key);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
782 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
783 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
784
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
785 /*
6353
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
786 * Check the crypt method and give a warning if it's outdated.
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
787 */
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
788 void
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
789 crypt_check_method(int method)
6353
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
790 {
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
791 if (method < CRYPT_M_BF2 || method == CRYPT_M_SOD)
6353
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
792 {
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
793 msg_scroll = TRUE;
15543
dd725a8ab112 patch 8.1.0779: argument for message functions is inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15531
diff changeset
794 msg(_("Warning: Using a weak encryption method; see :help 'cm'"));
6353
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
795 }
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
796 }
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
797
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
798 #ifdef FEAT_SODIUM
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
799 static void
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
800 crypt_check_swapfile_curbuf(void)
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
801 {
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
802 int method = crypt_get_method_nr(curbuf);
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
803 if (crypt_method_is_sodium(method))
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
804 {
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
805 // encryption uses padding and MAC, that does not work very well with
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
806 // swap and undo files, so disable them
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
807 mf_close_file(curbuf, TRUE); // remove the swap file
28457
4dcccb2673fe patch 8.2.4753: error from setting an option is silently ignored
Bram Moolenaar <Bram@vim.org>
parents: 27998
diff changeset
808 set_option_value_give_err((char_u *)"swf", 0, NULL, OPT_LOCAL);
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
809 msg_scroll = TRUE;
25362
68a7e6d70a5e patch 8.2.3218: when using xchaha20 crypt undo file is not removed
Bram Moolenaar <Bram@vim.org>
parents: 24990
diff changeset
810 msg(_("Note: Encryption of swapfile not supported, disabling swap file"));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
811 }
6353
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
812 }
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
813 #endif
6353
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
814
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
815 void
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
816 crypt_check_current_method(void)
6353
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
817 {
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
818 crypt_check_method(crypt_get_method_nr(curbuf));
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
819 }
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
820
60659773c73b updated for version 7.4.509
Bram Moolenaar <bram@vim.org>
parents: 6132
diff changeset
821 /*
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
822 * Ask the user for a crypt key.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
823 * When "store" is TRUE, the new key is stored in the 'key' option, and the
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
824 * 'key' option value is returned: Don't free it.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
825 * When "store" is FALSE, the typed key is returned in allocated memory.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
826 * Returns NULL on failure.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
827 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
828 char_u *
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
829 crypt_get_key(
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
830 int store,
18757
c469e1930456 patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents: 18498
diff changeset
831 int twice) // Ask for the key twice.
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
832 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
833 char_u *p1, *p2 = NULL;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
834 int round;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
835
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
836 for (round = 0; ; ++round)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
837 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
838 cmdline_star = TRUE;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
839 cmdline_row = msg_row;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
840 p1 = getcmdline_prompt(NUL, round == 0
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
841 ? (char_u *)_("Enter encryption key: ")
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
842 : (char_u *)_("Enter same key again: "), 0, EXPAND_NOTHING,
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
843 NULL);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
844 cmdline_star = FALSE;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
845
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
846 if (p1 == NULL)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
847 break;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
848
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
849 if (round == twice)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
850 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
851 if (p2 != NULL && STRCMP(p1, p2) != 0)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
852 {
15543
dd725a8ab112 patch 8.1.0779: argument for message functions is inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15531
diff changeset
853 msg(_("Keys don't match!"));
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
854 crypt_free_key(p1);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
855 crypt_free_key(p2);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
856 p2 = NULL;
18757
c469e1930456 patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents: 18498
diff changeset
857 round = -1; // do it again
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
858 continue;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
859 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
860
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
861 if (store)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
862 {
28457
4dcccb2673fe patch 8.2.4753: error from setting an option is silently ignored
Bram Moolenaar <Bram@vim.org>
parents: 27998
diff changeset
863 set_option_value_give_err((char_u *)"key", 0L, p1, OPT_LOCAL);
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
864 crypt_free_key(p1);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
865 p1 = curbuf->b_p_key;
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
866 #ifdef FEAT_SODIUM
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
867 crypt_check_swapfile_curbuf();
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
868 #endif
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
869 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
870 break;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
871 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
872 p2 = p1;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
873 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
874
18757
c469e1930456 patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents: 18498
diff changeset
875 // since the user typed this, no need to wait for return
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
876 if (!crypt_method_is_sodium(crypt_get_method_nr(curbuf)))
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
877 {
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
878 if (msg_didout)
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
879 msg_putchar('\n');
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
880 need_wait_return = FALSE;
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
881 msg_didout = FALSE;
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
882 }
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
883
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
884 crypt_free_key(p2);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
885 return p1;
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
886 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
887
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
888
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
889 /*
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
890 * Append a message to IObuff for the encryption/decryption method being used.
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
891 */
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
892 void
7817
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
893 crypt_append_msg(
83861277e6a3 commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents: 6353
diff changeset
894 buf_T *buf)
6122
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
895 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
896 if (crypt_get_method_nr(buf) == 0)
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
897 STRCAT(IObuff, _("[crypted]"));
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
898 else
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
899 {
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
900 STRCAT(IObuff, "[");
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
901 STRCAT(IObuff, *buf->b_p_cm == NUL ? p_cm : buf->b_p_cm);
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
902 STRCAT(IObuff, "]");
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
903 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
904 }
18ac55444b37 updated for version 7.4.399
Bram Moolenaar <bram@vim.org>
parents:
diff changeset
905
29320
a74398c432a4 patch 9.0.0003: functions are global while they could be local
Bram Moolenaar <Bram@vim.org>
parents: 28809
diff changeset
906 static int
31379
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
907 crypt_sodium_init_(
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
908 cryptstate_T *state UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
909 char_u *key UNUSED,
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
910 crypt_arg_T *arg UNUSED)
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
911 {
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
912 # ifdef FEAT_SODIUM
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
913 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
914 unsigned char dkey[crypto_box_SEEDBYTES]; // 32
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
915 sodium_state_T *sd_state;
25417
1919361a53da patch 8.2.3245: the crypt key may appear in a swap partition
Bram Moolenaar <Bram@vim.org>
parents: 25362
diff changeset
916 int retval = 0;
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
917 unsigned long long opslimit;
32313
6761c71f4b25 patch 9.0.1488: xchacha20v2 crypt header is platform dependent
Bram Moolenaar <Bram@vim.org>
parents: 32299
diff changeset
918 unsigned long long memlimit;
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
919 int alg;
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
920
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
921 if (sodium_init() < 0)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
922 return FAIL;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
923
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
924 sd_state = (sodium_state_T *)sodium_malloc(sizeof(sodium_state_T));
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
925 sodium_memzero(sd_state, sizeof(sodium_state_T));
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
926
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
927 if ((state->method_nr == CRYPT_M_SOD2 && !arg->cat_init_from_file)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
928 || state->method_nr == CRYPT_M_SOD)
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
929 {
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
930 opslimit = crypto_pwhash_OPSLIMIT_INTERACTIVE;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
931 memlimit = crypto_pwhash_MEMLIMIT_INTERACTIVE;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
932 alg = crypto_pwhash_ALG_DEFAULT;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
933
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
934 #if 0
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
935 // For testing
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
936 if (state->method_nr == CRYPT_M_SOD2)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
937 {
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
938 opslimit = crypto_pwhash_OPSLIMIT_MODERATE;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
939 memlimit = crypto_pwhash_MEMLIMIT_MODERATE;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
940 }
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
941 #endif
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
942
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
943 // derive a key from the password
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
944 if (crypto_pwhash(dkey, sizeof(dkey), (const char *)key, STRLEN(key),
32313
6761c71f4b25 patch 9.0.1488: xchacha20v2 crypt header is platform dependent
Bram Moolenaar <Bram@vim.org>
parents: 32299
diff changeset
945 arg->cat_salt, opslimit, (size_t)memlimit, alg) != 0)
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
946 {
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
947 // out of memory
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
948 sodium_free(sd_state);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
949 return FAIL;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
950 }
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
951 memcpy(sd_state->key, dkey, crypto_box_SEEDBYTES);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
952
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
953 retval += sodium_mlock(sd_state->key, crypto_box_SEEDBYTES);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
954 retval += sodium_mlock(key, STRLEN(key));
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
955
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
956 if (retval < 0)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
957 {
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
958 emsg(_(e_encryption_sodium_mlock_failed));
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
959 sodium_free(sd_state);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
960 return FAIL;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
961 }
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
962 if (state->method_nr == CRYPT_M_SOD2)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
963 {
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
964 memcpy(arg->cat_add, &opslimit, sizeof(opslimit));
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
965 arg->cat_add += sizeof(opslimit);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
966
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
967 memcpy(arg->cat_add, &memlimit, sizeof(memlimit));
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
968 arg->cat_add += sizeof(memlimit);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
969
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
970 memcpy(arg->cat_add, &alg, sizeof(alg));
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
971 arg->cat_add += sizeof(alg);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
972 }
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
973 }
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
974 else
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
975 {
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
976 // Reading parameters from file
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
977 if (arg->cat_add_len
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
978 < (int)(sizeof(opslimit) + sizeof(memlimit) + sizeof(alg)))
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
979 {
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
980 sodium_free(sd_state);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
981 return FAIL;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
982 }
25417
1919361a53da patch 8.2.3245: the crypt key may appear in a swap partition
Bram Moolenaar <Bram@vim.org>
parents: 25362
diff changeset
983
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
984 // derive the key from the file header
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
985 memcpy(&opslimit, arg->cat_add, sizeof(opslimit));
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
986 arg->cat_add += sizeof(opslimit);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
987
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
988 memcpy(&memlimit, arg->cat_add, sizeof(memlimit));
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
989 arg->cat_add += sizeof(memlimit);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
990
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
991 memcpy(&alg, arg->cat_add, sizeof(alg));
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
992 arg->cat_add += sizeof(alg);
25417
1919361a53da patch 8.2.3245: the crypt key may appear in a swap partition
Bram Moolenaar <Bram@vim.org>
parents: 25362
diff changeset
993
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
994 #ifdef FEAT_EVAL
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
995 crypt_sodium_report_hash_params(opslimit,
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
996 crypto_pwhash_OPSLIMIT_INTERACTIVE,
32313
6761c71f4b25 patch 9.0.1488: xchacha20v2 crypt header is platform dependent
Bram Moolenaar <Bram@vim.org>
parents: 32299
diff changeset
997 (size_t)memlimit, crypto_pwhash_MEMLIMIT_INTERACTIVE,
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
998 alg, crypto_pwhash_ALG_DEFAULT);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
999 #endif
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1000
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1001 if (crypto_pwhash(dkey, sizeof(dkey), (const char *)key, STRLEN(key),
32313
6761c71f4b25 patch 9.0.1488: xchacha20v2 crypt header is platform dependent
Bram Moolenaar <Bram@vim.org>
parents: 32299
diff changeset
1002 arg->cat_salt, opslimit, (size_t)memlimit, alg) != 0)
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1003 {
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1004 // out of memory
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1005 sodium_free(sd_state);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1006 return FAIL;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1007 }
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1008 memcpy(sd_state->key, dkey, crypto_box_SEEDBYTES);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1009
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1010 retval += sodium_mlock(sd_state->key, crypto_box_SEEDBYTES);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1011 retval += sodium_mlock(key, STRLEN(key));
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1012
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1013 if (retval < 0)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1014 {
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1015 emsg(_(e_encryption_sodium_mlock_failed));
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1016 sodium_free(sd_state);
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1017 return FAIL;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1018 }
25417
1919361a53da patch 8.2.3245: the crypt key may appear in a swap partition
Bram Moolenaar <Bram@vim.org>
parents: 25362
diff changeset
1019 }
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1020 sd_state->count = 0;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1021 state->method_state = sd_state;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1022
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1023 return OK;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1024 # else
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1025 emsg(_(e_libsodium_not_built_in));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1026 return FAIL;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1027 # endif
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1028 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1029
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1030 /*
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1031 * Encrypt "from[len]" into "to[len]".
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1032 * "from" and "to" can be equal to encrypt in place.
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1033 * Call needs to ensure that there is enough space in to (for the header)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1034 */
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
1035 #if 0 // Currently unused
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1036 void
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1037 crypt_sodium_encode(
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1038 cryptstate_T *state UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1039 char_u *from UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1040 size_t len UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1041 char_u *to UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1042 int last UNUSED)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1043 {
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1044 # ifdef FEAT_SODIUM
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1045 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1046 sodium_state_T *sod_st = state->method_state;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1047 unsigned char tag = last
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1048 ? crypto_secretstream_xchacha20poly1305_TAG_FINAL : 0;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1049
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1050 if (sod_st->count == 0)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1051 {
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1052 if (len <= crypto_secretstream_xchacha20poly1305_HEADERBYTES)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1053 {
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1054 emsg(_(e_libsodium_cannot_encrypt_header));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1055 return;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1056 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1057 crypto_secretstream_xchacha20poly1305_init_push(&sod_st->state,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1058 to, sod_st->key);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1059 to += crypto_secretstream_xchacha20poly1305_HEADERBYTES;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1060 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1061
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1062 if (sod_st->count && len <= crypto_secretstream_xchacha20poly1305_ABYTES)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1063 {
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1064 emsg(_(e_libsodium_cannot_encrypt_buffer));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1065 return;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1066 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1067
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1068 crypto_secretstream_xchacha20poly1305_push(&sod_st->state, to, NULL,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1069 from, len, NULL, 0, tag);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1070
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1071 sod_st->count++;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1072 # endif
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1073 }
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
1074 #endif
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1075
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
1076 /*
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1077 * Decrypt "from[len]" into "to[len]".
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1078 * "from" and "to" can be equal to encrypt in place.
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1079 */
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
1080 #if 0 // Currently unused
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1081 void
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1082 crypt_sodium_decode(
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1083 cryptstate_T *state UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1084 char_u *from UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1085 size_t len UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1086 char_u *to UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1087 int last UNUSED)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1088 {
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1089 # ifdef FEAT_SODIUM
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1090 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1091 sodium_state_T *sod_st = state->method_state;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1092 unsigned char tag;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1093 unsigned long long buf_len;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1094 char_u *p1 = from;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1095 char_u *p2 = to;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1096 char_u *buf_out;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1097
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1098 if (sod_st->count == 0
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1099 && len <= crypto_secretstream_xchacha20poly1305_HEADERBYTES)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1100 {
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1101 emsg(_(e_libsodium_cannot_decrypt_header));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1102 return;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1103 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1104
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1105 buf_out = (char_u *)alloc(len);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1106
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1107 if (buf_out == NULL)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1108 {
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1109 emsg(_(e_libsodium_cannot_allocate_buffer));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1110 return;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1111 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1112 if (sod_st->count == 0)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1113 {
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1114 if (crypto_secretstream_xchacha20poly1305_init_pull(
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1115 &sod_st->state, from, sod_st->key) != 0)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1116 {
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1117 emsg(_(e_libsodium_decryption_failed_header_incomplete));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1118 goto fail;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1119 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1120
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1121 from += crypto_secretstream_xchacha20poly1305_HEADERBYTES;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1122 len -= crypto_secretstream_xchacha20poly1305_HEADERBYTES;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1123
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1124 if (p1 == p2)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1125 to += crypto_secretstream_xchacha20poly1305_HEADERBYTES;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1126 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1127
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1128 if (sod_st->count && len <= crypto_secretstream_xchacha20poly1305_ABYTES)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1129 {
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1130 emsg(_(e_libsodium_cannot_decrypt_buffer));
24986
fa31a0ea09e1 patch 8.2.3030: Coverity reports a memory leak
Bram Moolenaar <Bram@vim.org>
parents: 24970
diff changeset
1131 goto fail;
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1132 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1133 if (crypto_secretstream_xchacha20poly1305_pull(&sod_st->state,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1134 buf_out, &buf_len, &tag, from, len, NULL, 0) != 0)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1135 {
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1136 emsg(_(e_libsodium_decryption_failed));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1137 goto fail;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1138 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1139 sod_st->count++;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1140
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1141 if (tag == crypto_secretstream_xchacha20poly1305_TAG_FINAL && !last)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1142 {
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1143 emsg(_(e_libsodium_decryption_failed_premature));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1144 goto fail;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1145 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1146 if (p1 == p2)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1147 mch_memmove(p2, buf_out, buf_len);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1148
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1149 fail:
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1150 vim_free(buf_out);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1151 # endif
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1152 }
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
1153 #endif
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1154
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1155 /*
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1156 * Encrypt "from[len]" into "to[len]".
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1157 * "from" and "to" can be equal to encrypt in place.
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1158 */
29320
a74398c432a4 patch 9.0.0003: functions are global while they could be local
Bram Moolenaar <Bram@vim.org>
parents: 28809
diff changeset
1159 static long
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1160 crypt_sodium_buffer_encode(
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1161 cryptstate_T *state UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1162 char_u *from UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1163 size_t len UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1164 char_u **buf_out UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1165 int last UNUSED)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1166 {
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1167 # ifdef FEAT_SODIUM
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1168 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1169 unsigned long long out_len;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1170 char_u *ptr;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1171 unsigned char tag = last
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1172 ? crypto_secretstream_xchacha20poly1305_TAG_FINAL : 0;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1173 int length;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1174 sodium_state_T *sod_st = state->method_state;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1175 int first = (sod_st->count == 0);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1176
24990
85d1e82ed134 patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents: 24986
diff changeset
1177 length = (int)len + crypto_secretstream_xchacha20poly1305_ABYTES
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1178 + (first ? crypto_secretstream_xchacha20poly1305_HEADERBYTES : 0);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1179 *buf_out = alloc_clear(length);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1180 if (*buf_out == NULL)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1181 {
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1182 emsg(_(e_libsodium_cannot_allocate_buffer));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1183 return -1;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1184 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1185 ptr = *buf_out;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1186
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1187 if (first)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1188 {
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1189 crypto_secretstream_xchacha20poly1305_init_push(&sod_st->state,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1190 ptr, sod_st->key);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1191 ptr += crypto_secretstream_xchacha20poly1305_HEADERBYTES;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1192 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1193
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1194 crypto_secretstream_xchacha20poly1305_push(&sod_st->state, ptr,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1195 &out_len, from, len, NULL, 0, tag);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1196
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1197 sod_st->count++;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1198 return out_len + (first
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1199 ? crypto_secretstream_xchacha20poly1305_HEADERBYTES : 0);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1200 # else
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1201 return -1;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1202 # endif
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1203 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1204
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1205 /*
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1206 * Decrypt "from[len]" into "to[len]".
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1207 * "from" and "to" can be equal to encrypt in place.
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1208 */
29320
a74398c432a4 patch 9.0.0003: functions are global while they could be local
Bram Moolenaar <Bram@vim.org>
parents: 28809
diff changeset
1209 static long
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1210 crypt_sodium_buffer_decode(
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1211 cryptstate_T *state UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1212 char_u *from UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1213 size_t len UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1214 char_u **buf_out UNUSED,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1215 int last UNUSED)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1216 {
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1217 # ifdef FEAT_SODIUM
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1218 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1219 sodium_state_T *sod_st = state->method_state;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1220 unsigned char tag;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1221 unsigned long long out_len;
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1222
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1223 if (sod_st->count == 0
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1224 && state->method_nr == CRYPT_M_SOD
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1225 && len > WRITEBUFSIZE
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1226 + crypto_secretstream_xchacha20poly1305_HEADERBYTES
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1227 + crypto_secretstream_xchacha20poly1305_ABYTES)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1228 len -= cryptmethods[CRYPT_M_SOD2].add_len;
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1229
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1230 *buf_out = alloc_clear(len);
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1231 if (*buf_out == NULL)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1232 {
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1233 emsg(_(e_libsodium_cannot_allocate_buffer));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1234 return -1;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1235 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1236
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1237 if (sod_st->count == 0)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1238 {
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1239 if (crypto_secretstream_xchacha20poly1305_init_pull(&sod_st->state,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1240 from, sod_st->key) != 0)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1241 {
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1242 emsg(_(e_libsodium_decryption_failed_header_incomplete));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1243 return -1;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1244 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1245 from += crypto_secretstream_xchacha20poly1305_HEADERBYTES;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1246 len -= crypto_secretstream_xchacha20poly1305_HEADERBYTES;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1247 sod_st->count++;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1248 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1249 if (crypto_secretstream_xchacha20poly1305_pull(&sod_st->state,
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1250 *buf_out, &out_len, &tag, from, len, NULL, 0) != 0)
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1251 {
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1252 emsg(_(e_libsodium_decryption_failed));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1253 return -1;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1254 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1255
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1256 if (tag == crypto_secretstream_xchacha20poly1305_TAG_FINAL && !last)
32481
a1e1527d1cb8 patch 9.0.1572: error messages are not translated
Bram Moolenaar <Bram@vim.org>
parents: 32313
diff changeset
1257 emsg(_(e_libsodium_decryption_failed_premature));
24970
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1258 return (long) out_len;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1259 # else
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1260 return -1;
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1261 # endif
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1262 }
7e9e53a0368f patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents: 18757
diff changeset
1263
27231
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
Bram Moolenaar <Bram@vim.org>
parents: 27018
diff changeset
1264 # if defined(FEAT_SODIUM) || defined(PROTO)
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
Bram Moolenaar <Bram@vim.org>
parents: 27018
diff changeset
1265 int
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
Bram Moolenaar <Bram@vim.org>
parents: 27018
diff changeset
1266 crypt_sodium_munlock(void *const addr, const size_t len)
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
Bram Moolenaar <Bram@vim.org>
parents: 27018
diff changeset
1267 {
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
Bram Moolenaar <Bram@vim.org>
parents: 27018
diff changeset
1268 return sodium_munlock(addr, len);
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
Bram Moolenaar <Bram@vim.org>
parents: 27018
diff changeset
1269 }
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
Bram Moolenaar <Bram@vim.org>
parents: 27018
diff changeset
1270
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
Bram Moolenaar <Bram@vim.org>
parents: 27018
diff changeset
1271 void
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
Bram Moolenaar <Bram@vim.org>
parents: 27018
diff changeset
1272 crypt_sodium_randombytes_buf(void *const buf, const size_t size)
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
Bram Moolenaar <Bram@vim.org>
parents: 27018
diff changeset
1273 {
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
Bram Moolenaar <Bram@vim.org>
parents: 27018
diff changeset
1274 randombytes_buf(buf, size);
e1cedf009920 patch 8.2.4144: cannot load libsodium dynamically
Bram Moolenaar <Bram@vim.org>
parents: 27018
diff changeset
1275 }
31379
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
1276
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
1277 int
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
1278 crypt_sodium_init(void)
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
1279 {
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
1280 return sodium_init();
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
1281 }
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
1282
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
1283 uint32_t
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
1284 crypt_sodium_randombytes_random(void)
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
1285 {
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
1286 return randombytes_random();
540e85ac14c9 patch 9.0.1023: MS-Windows: dynamic loading of libsodium doesn't work
Bram Moolenaar <Bram@vim.org>
parents: 29320
diff changeset
1287 }
32299
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1288
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1289 #if defined(FEAT_EVAL) || defined(PROTO)
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1290 static void
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1291 crypt_sodium_report_hash_params(
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1292 unsigned long long opslimit,
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1293 unsigned long long ops_def,
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
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diff changeset
1294 size_t memlimit,
3d4e28569a6d patch 9.0.1481: decrypting with libsodium may fail if the library changes
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parents: 32280
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1295 size_t mem_def,
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parents: 32280
diff changeset
1296 int alg,
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parents: 32280
diff changeset
1297 int alg_def)
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parents: 32280
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1298 {
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1299 if (p_verbose > 0)
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Bram Moolenaar <Bram@vim.org>
parents: 32280
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1300 {
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1301 verbose_enter();
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parents: 32280
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1302 if (opslimit != ops_def)
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Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1303 smsg(_("xchacha20v2: using custom opslimit \"%llu\" for Key derivation."), opslimit);
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Bram Moolenaar <Bram@vim.org>
parents: 32280
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1304 else
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parents: 32280
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1305 smsg(_("xchacha20v2: using default opslimit \"%llu\" for Key derivation."), opslimit);
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Bram Moolenaar <Bram@vim.org>
parents: 32280
diff changeset
1306 if (memlimit != mem_def)
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Bram Moolenaar <Bram@vim.org>
parents: 32280
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1307 smsg(_("xchacha20v2: using custom memlimit \"%lu\" for Key derivation."), (unsigned long)memlimit);
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1308 else
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1309 smsg(_("xchacha20v2: using default memlimit \"%lu\" for Key derivation."), (unsigned long)memlimit);
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1310 if (alg != alg_def)
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parents: 32280
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1311 smsg(_("xchacha20v2: using custom algorithm \"%d\" for Key derivation."), alg);
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1312 else
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1313 smsg(_("xchacha20v2: using default algorithm \"%d\" for Key derivation."), alg);
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parents: 32280
diff changeset
1314 verbose_leave();
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1315 }
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1316 }
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1317 #endif
27231
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1318 # endif
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1319
18757
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1320 #endif // FEAT_CRYPT