Mercurial > vim
annotate src/crypt.c @ 27018:268f6a3511df v8.2.4038
patch 8.2.4038: various code not used when features are disabled
Commit: https://github.com/vim/vim/commit/748b308eebe8d8860888eb27da08333f175d547d
Author: Dominique Pelle <dominique.pelle@gmail.com>
Date: Sat Jan 8 12:41:16 2022 +0000
patch 8.2.4038: various code not used when features are disabled
Problem: Various code not used when features are disabled.
Solution: Add #ifdefs. (Dominique Pell?, closes https://github.com/vim/vim/issues/9491)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sat, 08 Jan 2022 13:45:04 +0100 |
| parents | 85866e069c24 |
| children | e1cedf009920 |
| rev | line source |
|---|---|
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 6122 | 2 * |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 /* | |
| 11 * crypt.c: Generic encryption support. | |
| 12 */ | |
| 13 #include "vim.h" | |
| 14 | |
| 15 #if defined(FEAT_CRYPT) || defined(PROTO) | |
| 16 /* | |
| 17 * Optional encryption support. | |
| 18 * Mohsin Ahmed, mosh@sasi.com, 1998-09-24 | |
| 19 * Based on zip/crypt sources. | |
| 20 * Refactored by David Leadbeater, 2014. | |
| 21 * | |
| 22 * NOTE FOR USA: Since 2000 exporting this code from the USA is allowed to | |
| 23 * most countries. There are a few exceptions, but that still should not be a | |
| 24 * problem since this code was originally created in Europe and India. | |
| 25 * | |
| 26 * Blowfish addition originally made by Mohsin Ahmed, | |
| 27 * http://www.cs.albany.edu/~mosh 2010-03-14 | |
| 28 * Based on blowfish by Bruce Schneier (http://www.schneier.com/blowfish.html) | |
| 29 * and sha256 by Christophe Devine. | |
| 30 */ | |
| 31 | |
| 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 #ifdef CRYPT_NOT_INPLACE |
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38 int works_inplace; // encryption/decryption can be done in-place |
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39 #endif |
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40 int whole_undofile; // whole undo file is encrypted |
| 6122 | 41 |
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42 // Optional function pointer for a self-test. |
| 6122 | 43 int (* self_test_fn)(); |
| 44 | |
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45 // Function pointer for initializing encryption/decryption. |
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46 int (* init_fn)(cryptstate_T *state, char_u *key, |
| 6122 | 47 char_u *salt, int salt_len, char_u *seed, int seed_len); |
| 48 | |
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49 // Function pointers for encoding/decoding from one buffer into another. |
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50 // Optional, however, these or the _buffer ones should be configured. |
| 6122 | 51 void (*encode_fn)(cryptstate_T *state, char_u *from, size_t len, |
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52 char_u *to, int last); |
| 6122 | 53 void (*decode_fn)(cryptstate_T *state, char_u *from, size_t len, |
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54 char_u *to, int last); |
| 6122 | 55 |
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56 // Function pointers for encoding and decoding, can buffer data if needed. |
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57 // Optional (however, these or the above should be configured). |
| 6122 | 58 long (*encode_buffer_fn)(cryptstate_T *state, char_u *from, size_t len, |
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59 char_u **newptr, int last); |
| 6122 | 60 long (*decode_buffer_fn)(cryptstate_T *state, char_u *from, size_t len, |
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61 char_u **newptr, int last); |
| 6122 | 62 |
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63 // Function pointers for in-place encoding and decoding, used for |
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64 // crypt_*_inplace(). "from" and "to" arguments will be equal. |
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65 // These may be the same as decode_fn and encode_fn above, however an |
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66 // algorithm may implement them in a way that is not interchangeable with |
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67 // the crypt_(en|de)code() interface (for example because it wishes to add |
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68 // padding to files). |
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69 // This method is used for swap and undo files which have a rigid format. |
| 6122 | 70 void (*encode_inplace_fn)(cryptstate_T *state, char_u *p1, size_t len, |
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71 char_u *p2, int last); |
| 6122 | 72 void (*decode_inplace_fn)(cryptstate_T *state, char_u *p1, size_t len, |
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73 char_u *p2, int last); |
| 6122 | 74 } cryptmethod_T; |
| 75 | |
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76 // index is method_nr of cryptstate_T, CRYPT_M_* |
| 6122 | 77 static cryptmethod_T cryptmethods[CRYPT_M_COUNT] = { |
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78 // PK_Zip; very weak |
| 6122 | 79 { |
| 80 "zip", | |
| 81 "VimCrypt~01!", | |
| 82 0, | |
| 83 0, | |
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84 #ifdef CRYPT_NOT_INPLACE |
| 6122 | 85 TRUE, |
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86 #endif |
| 6122 | 87 FALSE, |
| 88 NULL, | |
| 89 crypt_zip_init, | |
| 90 crypt_zip_encode, crypt_zip_decode, | |
| 91 NULL, NULL, | |
| 92 crypt_zip_encode, crypt_zip_decode, | |
| 93 }, | |
| 94 | |
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95 // Blowfish/CFB + SHA-256 custom key derivation; implementation issues. |
| 6122 | 96 { |
| 97 "blowfish", | |
| 98 "VimCrypt~02!", | |
| 99 8, | |
| 100 8, | |
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101 #ifdef CRYPT_NOT_INPLACE |
| 6122 | 102 TRUE, |
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103 #endif |
| 6122 | 104 FALSE, |
| 105 blowfish_self_test, | |
| 106 crypt_blowfish_init, | |
| 107 crypt_blowfish_encode, crypt_blowfish_decode, | |
| 108 NULL, NULL, | |
| 109 crypt_blowfish_encode, crypt_blowfish_decode, | |
| 110 }, | |
| 111 | |
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112 // Blowfish/CFB + SHA-256 custom key derivation; fixed. |
| 6122 | 113 { |
| 114 "blowfish2", | |
| 115 "VimCrypt~03!", | |
| 116 8, | |
| 117 8, | |
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118 #ifdef CRYPT_NOT_INPLACE |
| 6122 | 119 TRUE, |
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120 #endif |
| 6122 | 121 TRUE, |
| 122 blowfish_self_test, | |
| 123 crypt_blowfish_init, | |
| 124 crypt_blowfish_encode, crypt_blowfish_decode, | |
| 125 NULL, NULL, | |
| 126 crypt_blowfish_encode, crypt_blowfish_decode, | |
| 127 }, | |
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128 |
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129 // XChaCha20 using libsodium |
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130 { |
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131 "xchacha20", |
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132 "VimCrypt~04!", |
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133 #ifdef FEAT_SODIUM |
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134 crypto_pwhash_argon2id_SALTBYTES, // 16 |
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135 #else |
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136 16, |
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137 #endif |
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138 8, |
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139 #ifdef CRYPT_NOT_INPLACE |
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140 FALSE, |
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141 #endif |
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142 FALSE, |
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143 NULL, |
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144 crypt_sodium_init, |
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145 NULL, NULL, |
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146 crypt_sodium_buffer_encode, crypt_sodium_buffer_decode, |
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147 NULL, NULL, |
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148 }, |
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149 |
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150 // NOTE: when adding a new method, use some random bytes for the magic key, |
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151 // to avoid that a text file is recognized as encrypted. |
| 6122 | 152 }; |
| 153 | |
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154 #ifdef FEAT_SODIUM |
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155 typedef struct { |
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156 size_t count; |
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157 unsigned char key[crypto_box_SEEDBYTES]; |
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158 // 32, same as crypto_secretstream_xchacha20poly1305_KEYBYTES |
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159 crypto_secretstream_xchacha20poly1305_state |
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160 state; |
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161 } sodium_state_T; |
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162 #endif |
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163 |
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164 #define CRYPT_MAGIC_LEN 12 // cannot change |
| 6122 | 165 static char crypt_magic_head[] = "VimCrypt~"; |
| 166 | |
| 167 /* | |
| 168 * Return int value for crypt method name. | |
| 169 * 0 for "zip", the old method. Also for any non-valid value. | |
| 170 * 1 for "blowfish". | |
| 171 * 2 for "blowfish2". | |
| 172 */ | |
| 173 int | |
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174 crypt_method_nr_from_name(char_u *name) |
| 6122 | 175 { |
| 176 int i; | |
| 177 | |
| 178 for (i = 0; i < CRYPT_M_COUNT; ++i) | |
| 179 if (STRCMP(name, cryptmethods[i].name) == 0) | |
| 180 return i; | |
| 181 return 0; | |
| 182 } | |
| 183 | |
| 184 /* | |
| 185 * Get the crypt method used for a file from "ptr[len]", the magic text at the | |
| 186 * start of the file. | |
| 187 * Returns -1 when no encryption used. | |
| 188 */ | |
| 189 int | |
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190 crypt_method_nr_from_magic(char *ptr, int len) |
| 6122 | 191 { |
| 192 int i; | |
| 193 | |
| 194 if (len < CRYPT_MAGIC_LEN) | |
| 195 return -1; | |
| 196 | |
| 197 for (i = 0; i < CRYPT_M_COUNT; i++) | |
| 198 if (memcmp(ptr, cryptmethods[i].magic, CRYPT_MAGIC_LEN) == 0) | |
| 199 return i; | |
| 200 | |
| 201 i = (int)STRLEN(crypt_magic_head); | |
| 202 if (len >= i && memcmp(ptr, crypt_magic_head, i) == 0) | |
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203 emsg(_(e_file_is_encrypted_with_unknown_method)); |
| 6122 | 204 |
| 205 return -1; | |
| 206 } | |
| 207 | |
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208 #ifdef CRYPT_NOT_INPLACE |
| 6122 | 209 /* |
| 210 * Return TRUE if the crypt method for "method_nr" can be done in-place. | |
| 211 */ | |
| 212 int | |
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213 crypt_works_inplace(cryptstate_T *state) |
| 6122 | 214 { |
| 215 return cryptmethods[state->method_nr].works_inplace; | |
| 216 } | |
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217 #endif |
| 6122 | 218 |
| 219 /* | |
| 220 * Get the crypt method for buffer "buf" as a number. | |
| 221 */ | |
| 222 int | |
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223 crypt_get_method_nr(buf_T *buf) |
| 6122 | 224 { |
| 225 return crypt_method_nr_from_name(*buf->b_p_cm == NUL ? p_cm : buf->b_p_cm); | |
| 226 } | |
| 227 | |
| 228 /* | |
| 229 * Return TRUE when the buffer uses an encryption method that encrypts the | |
| 230 * whole undo file, not only the text. | |
| 231 */ | |
| 232 int | |
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233 crypt_whole_undofile(int method_nr) |
| 6122 | 234 { |
| 235 return cryptmethods[method_nr].whole_undofile; | |
| 236 } | |
| 237 | |
| 238 /* | |
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239 * Get crypt method specific length of the file header in bytes. |
| 6122 | 240 */ |
| 241 int | |
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242 crypt_get_header_len(int method_nr) |
| 6122 | 243 { |
| 244 return CRYPT_MAGIC_LEN | |
| 245 + cryptmethods[method_nr].salt_len | |
| 246 + cryptmethods[method_nr].seed_len; | |
| 247 } | |
| 248 | |
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249 |
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250 #if defined(FEAT_SODIUM) || defined(PROTO) |
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251 /* |
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252 * Get maximum crypt method specific length of the file header in bytes. |
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253 */ |
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254 int |
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255 crypt_get_max_header_len() |
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256 { |
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257 int i; |
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258 int max = 0; |
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259 int temp = 0; |
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260 |
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261 for (i = 0; i < CRYPT_M_COUNT; ++i) |
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262 { |
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263 temp = crypt_get_header_len(i); |
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264 if (temp > max) |
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265 max = temp; |
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266 } |
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267 return max; |
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268 } |
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269 #endif |
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270 |
| 6122 | 271 /* |
| 272 * Set the crypt method for buffer "buf" to "method_nr" using the int value as | |
| 273 * returned by crypt_method_nr_from_name(). | |
| 274 */ | |
| 275 void | |
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276 crypt_set_cm_option(buf_T *buf, int method_nr) |
| 6122 | 277 { |
| 278 free_string_option(buf->b_p_cm); | |
| 279 buf->b_p_cm = vim_strsave((char_u *)cryptmethods[method_nr].name); | |
| 280 } | |
| 281 | |
| 282 /* | |
| 283 * If the crypt method for the current buffer has a self-test, run it and | |
| 284 * return OK/FAIL. | |
| 285 */ | |
| 286 int | |
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287 crypt_self_test(void) |
| 6122 | 288 { |
| 289 int method_nr = crypt_get_method_nr(curbuf); | |
| 290 | |
| 291 if (cryptmethods[method_nr].self_test_fn == NULL) | |
| 292 return OK; | |
| 293 return cryptmethods[method_nr].self_test_fn(); | |
| 294 } | |
| 295 | |
| 296 /* | |
| 297 * Allocate a crypt state and initialize it. | |
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298 * Return NULL for failure. |
| 6122 | 299 */ |
| 300 cryptstate_T * | |
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301 crypt_create( |
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302 int method_nr, |
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303 char_u *key, |
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304 char_u *salt, |
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305 int salt_len, |
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306 char_u *seed, |
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307 int seed_len) |
| 6122 | 308 { |
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309 cryptstate_T *state = ALLOC_ONE(cryptstate_T); |
| 6122 | 310 |
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311 if (state == NULL) |
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312 return state; |
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313 |
| 6122 | 314 state->method_nr = method_nr; |
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315 if (cryptmethods[method_nr].init_fn( |
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316 state, key, salt, salt_len, seed, seed_len) == FAIL) |
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317 { |
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318 vim_free(state); |
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319 return NULL; |
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320 } |
| 6122 | 321 return state; |
| 322 } | |
| 323 | |
| 324 /* | |
| 325 * Allocate a crypt state from a file header and initialize it. | |
| 326 * Assumes that header contains at least the number of bytes that | |
| 327 * crypt_get_header_len() returns for "method_nr". | |
| 328 */ | |
| 329 cryptstate_T * | |
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330 crypt_create_from_header( |
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331 int method_nr, |
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332 char_u *key, |
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333 char_u *header) |
| 6122 | 334 { |
| 335 char_u *salt = NULL; | |
| 336 char_u *seed = NULL; | |
| 337 int salt_len = cryptmethods[method_nr].salt_len; | |
| 338 int seed_len = cryptmethods[method_nr].seed_len; | |
| 339 | |
| 340 if (salt_len > 0) | |
| 341 salt = header + CRYPT_MAGIC_LEN; | |
| 342 if (seed_len > 0) | |
| 343 seed = header + CRYPT_MAGIC_LEN + salt_len; | |
| 344 | |
| 345 return crypt_create(method_nr, key, salt, salt_len, seed, seed_len); | |
| 346 } | |
| 347 | |
| 348 /* | |
| 349 * Read the crypt method specific header data from "fp". | |
| 350 * Return an allocated cryptstate_T or NULL on error. | |
| 351 */ | |
| 352 cryptstate_T * | |
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353 crypt_create_from_file(FILE *fp, char_u *key) |
| 6122 | 354 { |
| 355 int method_nr; | |
| 356 int header_len; | |
| 357 char magic_buffer[CRYPT_MAGIC_LEN]; | |
| 358 char_u *buffer; | |
| 359 cryptstate_T *state; | |
| 360 | |
| 361 if (fread(magic_buffer, CRYPT_MAGIC_LEN, 1, fp) != 1) | |
| 362 return NULL; | |
| 363 method_nr = crypt_method_nr_from_magic(magic_buffer, CRYPT_MAGIC_LEN); | |
| 364 if (method_nr < 0) | |
| 365 return NULL; | |
| 366 | |
| 367 header_len = crypt_get_header_len(method_nr); | |
| 368 if ((buffer = alloc(header_len)) == NULL) | |
| 369 return NULL; | |
| 370 mch_memmove(buffer, magic_buffer, CRYPT_MAGIC_LEN); | |
| 371 if (header_len > CRYPT_MAGIC_LEN | |
| 372 && fread(buffer + CRYPT_MAGIC_LEN, | |
| 373 header_len - CRYPT_MAGIC_LEN, 1, fp) != 1) | |
| 374 { | |
| 375 vim_free(buffer); | |
| 376 return NULL; | |
| 377 } | |
| 378 | |
| 379 state = crypt_create_from_header(method_nr, key, buffer); | |
| 380 vim_free(buffer); | |
| 381 return state; | |
| 382 } | |
| 383 | |
| 384 /* | |
| 385 * Allocate a cryptstate_T for writing and initialize it with "key". | |
| 386 * Allocates and fills in the header and stores it in "header", setting | |
| 387 * "header_len". The header may include salt and seed, depending on | |
| 388 * cryptmethod. Caller must free header. | |
| 389 * Returns the state or NULL on failure. | |
| 390 */ | |
| 391 cryptstate_T * | |
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392 crypt_create_for_writing( |
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393 int method_nr, |
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394 char_u *key, |
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395 char_u **header, |
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396 int *header_len) |
| 6122 | 397 { |
| 398 int len = crypt_get_header_len(method_nr); | |
| 399 char_u *salt = NULL; | |
| 400 char_u *seed = NULL; | |
| 401 int salt_len = cryptmethods[method_nr].salt_len; | |
| 402 int seed_len = cryptmethods[method_nr].seed_len; | |
| 403 cryptstate_T *state; | |
| 404 | |
| 405 *header_len = len; | |
| 406 *header = alloc(len); | |
| 407 if (*header == NULL) | |
| 408 return NULL; | |
| 409 | |
| 410 mch_memmove(*header, cryptmethods[method_nr].magic, CRYPT_MAGIC_LEN); | |
| 411 if (salt_len > 0 || seed_len > 0) | |
| 412 { | |
| 413 if (salt_len > 0) | |
| 414 salt = *header + CRYPT_MAGIC_LEN; | |
| 415 if (seed_len > 0) | |
| 416 seed = *header + CRYPT_MAGIC_LEN + salt_len; | |
| 417 | |
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418 // TODO: Should this be crypt method specific? (Probably not worth |
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419 // it). sha2_seed is pretty bad for large amounts of entropy, so make |
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420 // that into something which is suitable for anything. |
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421 #ifdef FEAT_SODIUM |
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422 if (sodium_init() >= 0) |
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423 { |
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424 if (salt_len > 0) |
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425 randombytes_buf(salt, salt_len); |
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426 if (seed_len > 0) |
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427 randombytes_buf(seed, seed_len); |
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428 } |
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429 else |
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430 #endif |
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431 sha2_seed(salt, salt_len, seed, seed_len); |
| 6122 | 432 } |
| 433 state = crypt_create(method_nr, key, salt, salt_len, seed, seed_len); | |
| 434 if (state == NULL) | |
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435 VIM_CLEAR(*header); |
| 6122 | 436 return state; |
| 437 } | |
| 438 | |
| 439 /* | |
| 440 * Free the crypt state. | |
| 441 */ | |
| 442 void | |
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443 crypt_free_state(cryptstate_T *state) |
| 6122 | 444 { |
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445 #ifdef FEAT_SODIUM |
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446 if (state->method_nr == CRYPT_M_SOD) |
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447 { |
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448 sodium_munlock(((sodium_state_T *)state->method_state)->key, |
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449 crypto_box_SEEDBYTES); |
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450 sodium_memzero(state->method_state, sizeof(sodium_state_T)); |
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451 sodium_free(state->method_state); |
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452 } |
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453 else |
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454 #endif |
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455 vim_free(state->method_state); |
| 6122 | 456 vim_free(state); |
| 457 } | |
| 458 | |
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459 #ifdef CRYPT_NOT_INPLACE |
| 6122 | 460 /* |
| 461 * Encode "from[len]" and store the result in a newly allocated buffer, which | |
| 462 * is stored in "newptr". | |
| 463 * Return number of bytes in "newptr", 0 for need more or -1 on error. | |
| 464 */ | |
| 465 long | |
|
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466 crypt_encode_alloc( |
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467 cryptstate_T *state, |
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468 char_u *from, |
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469 size_t len, |
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470 char_u **newptr, |
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471 int last) |
| 6122 | 472 { |
| 473 cryptmethod_T *method = &cryptmethods[state->method_nr]; | |
| 474 | |
| 475 if (method->encode_buffer_fn != NULL) | |
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476 // Has buffer function, pass through. |
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477 return method->encode_buffer_fn(state, from, len, newptr, last); |
| 6122 | 478 if (len == 0) |
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479 // Not buffering, just return EOF. |
| 6132 | 480 return (long)len; |
| 6122 | 481 |
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482 *newptr = alloc(len + 50); |
| 6122 | 483 if (*newptr == NULL) |
| 484 return -1; | |
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485 method->encode_fn(state, from, len, *newptr, last); |
| 6132 | 486 return (long)len; |
| 6122 | 487 } |
| 488 | |
| 489 /* | |
| 490 * Decrypt "ptr[len]" and store the result in a newly allocated buffer, which | |
| 491 * is stored in "newptr". | |
| 492 * Return number of bytes in "newptr", 0 for need more or -1 on error. | |
| 493 */ | |
| 494 long | |
|
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495 crypt_decode_alloc( |
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496 cryptstate_T *state, |
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497 char_u *ptr, |
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498 long len, |
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499 char_u **newptr, |
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500 int last) |
| 6122 | 501 { |
| 502 cryptmethod_T *method = &cryptmethods[state->method_nr]; | |
| 503 | |
| 504 if (method->decode_buffer_fn != NULL) | |
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505 // Has buffer function, pass through. |
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506 return method->decode_buffer_fn(state, ptr, len, newptr, last); |
| 6122 | 507 |
| 508 if (len == 0) | |
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509 // Not buffering, just return EOF. |
| 6122 | 510 return len; |
| 511 | |
| 512 *newptr = alloc(len); | |
| 513 if (*newptr == NULL) | |
| 514 return -1; | |
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515 method->decode_fn(state, ptr, len, *newptr, last); |
| 6122 | 516 return len; |
| 517 } | |
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518 #endif |
| 6122 | 519 |
| 520 /* | |
| 521 * Encrypting "from[len]" into "to[len]". | |
| 522 */ | |
| 523 void | |
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524 crypt_encode( |
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525 cryptstate_T *state, |
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526 char_u *from, |
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527 size_t len, |
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528 char_u *to, |
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529 int last) |
| 6122 | 530 { |
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531 cryptmethods[state->method_nr].encode_fn(state, from, len, to, last); |
| 6122 | 532 } |
| 533 | |
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534 #if 0 // unused |
| 6122 | 535 /* |
| 536 * decrypting "from[len]" into "to[len]". | |
| 537 */ | |
| 538 void | |
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539 crypt_decode( |
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540 cryptstate_T *state, |
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541 char_u *from, |
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542 size_t len, |
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543 char_u *to, |
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544 int last) |
| 6122 | 545 { |
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546 cryptmethods[state->method_nr].decode_fn(state, from, len, to, last); |
| 6122 | 547 } |
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548 #endif |
| 6122 | 549 |
| 550 /* | |
| 551 * Simple inplace encryption, modifies "buf[len]" in place. | |
| 552 */ | |
| 553 void | |
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554 crypt_encode_inplace( |
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555 cryptstate_T *state, |
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556 char_u *buf, |
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557 size_t len, |
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558 int last) |
| 6122 | 559 { |
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560 cryptmethods[state->method_nr].encode_inplace_fn(state, buf, len, |
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561 buf, last); |
| 6122 | 562 } |
| 563 | |
| 564 /* | |
| 565 * Simple inplace decryption, modifies "buf[len]" in place. | |
| 566 */ | |
| 567 void | |
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568 crypt_decode_inplace( |
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569 cryptstate_T *state, |
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570 char_u *buf, |
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571 size_t len, |
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572 int last) |
| 6122 | 573 { |
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574 cryptmethods[state->method_nr].decode_inplace_fn(state, buf, len, |
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575 buf, last); |
| 6122 | 576 } |
| 577 | |
| 578 /* | |
| 579 * Free an allocated crypt key. Clear the text to make sure it doesn't stay | |
| 580 * in memory anywhere. | |
| 581 */ | |
| 582 void | |
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583 crypt_free_key(char_u *key) |
| 6122 | 584 { |
| 585 char_u *p; | |
| 586 | |
| 587 if (key != NULL) | |
| 588 { | |
| 589 for (p = key; *p != NUL; ++p) | |
| 590 *p = 0; | |
| 591 vim_free(key); | |
| 592 } | |
| 593 } | |
| 594 | |
| 595 /* | |
| 6353 | 596 * Check the crypt method and give a warning if it's outdated. |
| 597 */ | |
| 598 void | |
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599 crypt_check_method(int method) |
| 6353 | 600 { |
| 601 if (method < CRYPT_M_BF2) | |
| 602 { | |
| 603 msg_scroll = TRUE; | |
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604 msg(_("Warning: Using a weak encryption method; see :help 'cm'")); |
| 6353 | 605 } |
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606 } |
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607 |
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608 #ifdef FEAT_SODIUM |
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609 static void |
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610 crypt_check_swapfile_curbuf(void) |
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611 { |
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612 int method = crypt_get_method_nr(curbuf); |
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613 if (method == CRYPT_M_SOD) |
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614 { |
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615 // encryption uses padding and MAC, that does not work very well with |
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616 // swap and undo files, so disable them |
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617 mf_close_file(curbuf, TRUE); // remove the swap file |
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618 set_option_value((char_u *)"swf", 0, NULL, OPT_LOCAL); |
|
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619 msg_scroll = TRUE; |
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620 msg(_("Note: Encryption of swapfile not supported, disabling swap file")); |
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621 } |
| 6353 | 622 } |
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623 #endif |
| 6353 | 624 |
| 625 void | |
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626 crypt_check_current_method(void) |
| 6353 | 627 { |
| 628 crypt_check_method(crypt_get_method_nr(curbuf)); | |
| 629 } | |
| 630 | |
| 631 /* | |
| 6122 | 632 * Ask the user for a crypt key. |
| 633 * When "store" is TRUE, the new key is stored in the 'key' option, and the | |
| 634 * 'key' option value is returned: Don't free it. | |
| 635 * When "store" is FALSE, the typed key is returned in allocated memory. | |
| 636 * Returns NULL on failure. | |
| 637 */ | |
| 638 char_u * | |
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639 crypt_get_key( |
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640 int store, |
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641 int twice) // Ask for the key twice. |
| 6122 | 642 { |
| 643 char_u *p1, *p2 = NULL; | |
| 644 int round; | |
| 645 | |
| 646 for (round = 0; ; ++round) | |
| 647 { | |
| 648 cmdline_star = TRUE; | |
| 649 cmdline_row = msg_row; | |
| 650 p1 = getcmdline_prompt(NUL, round == 0 | |
| 651 ? (char_u *)_("Enter encryption key: ") | |
| 652 : (char_u *)_("Enter same key again: "), 0, EXPAND_NOTHING, | |
| 653 NULL); | |
| 654 cmdline_star = FALSE; | |
| 655 | |
| 656 if (p1 == NULL) | |
| 657 break; | |
| 658 | |
| 659 if (round == twice) | |
| 660 { | |
| 661 if (p2 != NULL && STRCMP(p1, p2) != 0) | |
| 662 { | |
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663 msg(_("Keys don't match!")); |
| 6122 | 664 crypt_free_key(p1); |
| 665 crypt_free_key(p2); | |
| 666 p2 = NULL; | |
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667 round = -1; // do it again |
| 6122 | 668 continue; |
| 669 } | |
| 670 | |
| 671 if (store) | |
| 672 { | |
| 673 set_option_value((char_u *)"key", 0L, p1, OPT_LOCAL); | |
| 674 crypt_free_key(p1); | |
| 675 p1 = curbuf->b_p_key; | |
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676 #ifdef FEAT_SODIUM |
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677 crypt_check_swapfile_curbuf(); |
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678 #endif |
| 6122 | 679 } |
| 680 break; | |
| 681 } | |
| 682 p2 = p1; | |
| 683 } | |
| 684 | |
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685 // since the user typed this, no need to wait for return |
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686 if (crypt_get_method_nr(curbuf) != CRYPT_M_SOD) |
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687 { |
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688 if (msg_didout) |
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689 msg_putchar('\n'); |
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690 need_wait_return = FALSE; |
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691 msg_didout = FALSE; |
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692 } |
| 6122 | 693 |
| 694 crypt_free_key(p2); | |
| 695 return p1; | |
| 696 } | |
| 697 | |
| 698 | |
| 699 /* | |
| 700 * Append a message to IObuff for the encryption/decryption method being used. | |
| 701 */ | |
| 702 void | |
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703 crypt_append_msg( |
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704 buf_T *buf) |
| 6122 | 705 { |
| 706 if (crypt_get_method_nr(buf) == 0) | |
| 707 STRCAT(IObuff, _("[crypted]")); | |
| 708 else | |
| 709 { | |
| 710 STRCAT(IObuff, "["); | |
| 711 STRCAT(IObuff, *buf->b_p_cm == NUL ? p_cm : buf->b_p_cm); | |
| 712 STRCAT(IObuff, "]"); | |
| 713 } | |
| 714 } | |
| 715 | |
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716 int |
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717 crypt_sodium_init( |
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718 cryptstate_T *state UNUSED, |
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719 char_u *key UNUSED, |
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720 char_u *salt UNUSED, |
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721 int salt_len UNUSED, |
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722 char_u *seed UNUSED, |
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723 int seed_len UNUSED) |
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724 { |
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725 # ifdef FEAT_SODIUM |
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726 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES |
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727 unsigned char dkey[crypto_box_SEEDBYTES]; // 32 |
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728 sodium_state_T *sd_state; |
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729 int retval = 0; |
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730 |
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731 if (sodium_init() < 0) |
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732 return FAIL; |
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733 |
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734 sd_state = (sodium_state_T *)sodium_malloc(sizeof(sodium_state_T)); |
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735 sodium_memzero(sd_state, sizeof(sodium_state_T)); |
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736 |
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737 // derive a key from the password |
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738 if (crypto_pwhash(dkey, sizeof(dkey), (const char *)key, STRLEN(key), salt, |
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739 crypto_pwhash_OPSLIMIT_INTERACTIVE, crypto_pwhash_MEMLIMIT_INTERACTIVE, |
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740 crypto_pwhash_ALG_DEFAULT) != 0) |
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741 { |
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742 // out of memory |
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743 sodium_free(sd_state); |
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744 return FAIL; |
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745 } |
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746 memcpy(sd_state->key, dkey, crypto_box_SEEDBYTES); |
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747 |
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748 retval += sodium_mlock(sd_state->key, crypto_box_SEEDBYTES); |
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749 retval += sodium_mlock(key, STRLEN(key)); |
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750 |
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751 if (retval < 0) |
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752 { |
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753 emsg(_(e_encryption_sodium_mlock_failed)); |
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754 sodium_free(sd_state); |
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755 return FAIL; |
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756 } |
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757 sd_state->count = 0; |
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758 state->method_state = sd_state; |
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759 |
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760 return OK; |
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761 # else |
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762 emsg(e_libsodium_not_built_in); |
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763 return FAIL; |
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764 # endif |
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765 } |
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766 |
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767 /* |
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768 * Encrypt "from[len]" into "to[len]". |
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769 * "from" and "to" can be equal to encrypt in place. |
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770 * Call needs to ensure that there is enough space in to (for the header) |
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771 */ |
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772 #if 0 // Currently unused |
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773 void |
|
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774 crypt_sodium_encode( |
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775 cryptstate_T *state UNUSED, |
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776 char_u *from UNUSED, |
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777 size_t len UNUSED, |
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778 char_u *to UNUSED, |
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779 int last UNUSED) |
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780 { |
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781 # ifdef FEAT_SODIUM |
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782 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES |
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Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
783 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
|
784 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
|
785 ? 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
|
786 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
787 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
|
788 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
789 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
|
790 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
791 emsg(e_libsodium_cannot_encrypt_header); |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
792 return; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
793 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
794 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
|
795 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
|
796 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
|
797 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
798 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
799 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
|
800 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
801 emsg(e_libsodium_cannot_encrypt_buffer); |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
802 return; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
803 } |
|
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 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
|
806 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
|
807 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
808 sod_st->count++; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
809 # endif |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
810 } |
|
24990
85d1e82ed134
patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents:
24986
diff
changeset
|
811 #endif |
|
24970
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
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 /* |
|
24970
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
814 * 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
|
815 * "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
|
816 */ |
|
24990
85d1e82ed134
patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents:
24986
diff
changeset
|
817 #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
|
818 void |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
819 crypt_sodium_decode( |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
820 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
|
821 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
|
822 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
|
823 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
|
824 int last UNUSED) |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
825 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
826 # ifdef FEAT_SODIUM |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
827 // 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
|
828 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
|
829 unsigned char tag; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
830 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
|
831 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
|
832 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
|
833 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
|
834 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
835 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
|
836 && 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
|
837 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
838 emsg(e_libsodium_cannot_decrypt_header); |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
839 return; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
840 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
841 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
842 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
|
843 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
844 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
|
845 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
846 emsg(e_libsodium_cannot_allocate_buffer); |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
847 return; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
848 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
849 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
|
850 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
851 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
|
852 &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
|
853 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
854 emsg(e_libsodium_decryption_failed_header_incomplete); |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
855 goto fail; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
856 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
857 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
858 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
|
859 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
|
860 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
861 if (p1 == p2) |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
862 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
|
863 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
864 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
865 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
|
866 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
867 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
|
868 goto fail; |
|
24970
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
869 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
870 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
|
871 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
|
872 { |
|
24986
fa31a0ea09e1
patch 8.2.3030: Coverity reports a memory leak
Bram Moolenaar <Bram@vim.org>
parents:
24970
diff
changeset
|
873 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
|
874 goto fail; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
875 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
876 sod_st->count++; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
877 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
878 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
|
879 { |
|
24986
fa31a0ea09e1
patch 8.2.3030: Coverity reports a memory leak
Bram Moolenaar <Bram@vim.org>
parents:
24970
diff
changeset
|
880 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
|
881 goto fail; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
882 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
883 if (p1 == p2) |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
884 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
|
885 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
886 fail: |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
887 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
|
888 # endif |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
889 } |
|
24990
85d1e82ed134
patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents:
24986
diff
changeset
|
890 #endif |
|
24970
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
891 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
892 /* |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
893 * 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
|
894 * "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
|
895 */ |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
896 long |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
897 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
|
898 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
|
899 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
|
900 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
|
901 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
|
902 int last UNUSED) |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
903 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
904 # ifdef FEAT_SODIUM |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
905 // 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
|
906 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
|
907 char_u *ptr; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
908 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
|
909 ? 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
|
910 int length; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
911 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
|
912 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
|
913 |
|
24990
85d1e82ed134
patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents:
24986
diff
changeset
|
914 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
|
915 + (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
|
916 *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
|
917 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
|
918 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
919 emsg(e_libsodium_cannot_allocate_buffer); |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
920 return -1; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
921 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
922 ptr = *buf_out; |
|
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 if (first) |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
925 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
926 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
|
927 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
|
928 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
|
929 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
930 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
931 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
|
932 &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
|
933 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
934 sod_st->count++; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
935 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
|
936 ? 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
|
937 # else |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
938 return -1; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
939 # endif |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
940 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
941 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
942 /* |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
943 * 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
|
944 * "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
|
945 */ |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
946 long |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
947 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
|
948 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
|
949 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
|
950 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
|
951 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
|
952 int last UNUSED) |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
953 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
954 # ifdef FEAT_SODIUM |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
955 // 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
|
956 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
|
957 unsigned char tag; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
958 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
|
959 *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
|
960 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
|
961 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
962 emsg(e_libsodium_cannot_allocate_buffer); |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
963 return -1; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
964 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
965 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
966 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
|
967 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
968 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
|
969 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
|
970 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
971 emsg(e_libsodium_decryption_failed_header_incomplete); |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
972 return -1; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
973 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
974 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
|
975 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
|
976 sod_st->count++; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
977 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
978 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
|
979 *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
|
980 { |
|
24986
fa31a0ea09e1
patch 8.2.3030: Coverity reports a memory leak
Bram Moolenaar <Bram@vim.org>
parents:
24970
diff
changeset
|
981 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
|
982 return -1; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
983 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
984 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
985 if (tag == crypto_secretstream_xchacha20poly1305_TAG_FINAL && !last) |
|
24986
fa31a0ea09e1
patch 8.2.3030: Coverity reports a memory leak
Bram Moolenaar <Bram@vim.org>
parents:
24970
diff
changeset
|
986 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
|
987 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
|
988 # else |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
989 return -1; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
990 # endif |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
991 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
992 |
|
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18498
diff
changeset
|
993 #endif // FEAT_CRYPT |