Mercurial > vim
annotate src/crypt.c @ 25479:fbdfa533001c v8.2.3276
patch 8.2.3276: Vim9: exists() can only be evaluated at runtime
Commit: https://github.com/vim/vim/commit/bb7ee7abe1ea1e60b8a5dadd2bed8cdbe4f3e8fb
Author: Bram Moolenaar <Bram@vim.org>
Date: Mon Aug 2 20:06:50 2021 +0200
patch 8.2.3276: Vim9: exists() can only be evaluated at runtime
Problem: Vim9: exists() can only be evaluated at runtime.
Solution: Evaluate at compile time for option name literals. (closes https://github.com/vim/vim/issues/8437)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Mon, 02 Aug 2021 20:15:03 +0200 |
| parents | 1919361a53da |
| children | 85866e069c24 |
| 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| 26 * Blowfish addition originally made by Mohsin Ahmed, | |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(_("E821: 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 /* |
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251 * Get maximum crypt method specific length of the file header in bytes. |
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252 */ |
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253 int |
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254 crypt_get_max_header_len() |
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255 { |
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256 int i; |
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257 int max = 0; |
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258 int temp = 0; |
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259 |
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260 for (i = 0; i < CRYPT_M_COUNT; ++i) |
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261 { |
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262 temp = crypt_get_header_len(i); |
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263 if (temp > max) |
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264 max = temp; |
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265 } |
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266 return max; |
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267 } |
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268 |
| 6122 | 269 /* |
| 270 * Set the crypt method for buffer "buf" to "method_nr" using the int value as | |
| 271 * returned by crypt_method_nr_from_name(). | |
| 272 */ | |
| 273 void | |
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274 crypt_set_cm_option(buf_T *buf, int method_nr) |
| 6122 | 275 { |
| 276 free_string_option(buf->b_p_cm); | |
| 277 buf->b_p_cm = vim_strsave((char_u *)cryptmethods[method_nr].name); | |
| 278 } | |
| 279 | |
| 280 /* | |
| 281 * If the crypt method for the current buffer has a self-test, run it and | |
| 282 * return OK/FAIL. | |
| 283 */ | |
| 284 int | |
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285 crypt_self_test(void) |
| 6122 | 286 { |
| 287 int method_nr = crypt_get_method_nr(curbuf); | |
| 288 | |
| 289 if (cryptmethods[method_nr].self_test_fn == NULL) | |
| 290 return OK; | |
| 291 return cryptmethods[method_nr].self_test_fn(); | |
| 292 } | |
| 293 | |
| 294 /* | |
| 295 * Allocate a crypt state and initialize it. | |
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296 * Return NULL for failure. |
| 6122 | 297 */ |
| 298 cryptstate_T * | |
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299 crypt_create( |
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300 int method_nr, |
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301 char_u *key, |
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302 char_u *salt, |
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303 int salt_len, |
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304 char_u *seed, |
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305 int seed_len) |
| 6122 | 306 { |
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307 cryptstate_T *state = ALLOC_ONE(cryptstate_T); |
| 6122 | 308 |
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309 if (state == NULL) |
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310 return state; |
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311 |
| 6122 | 312 state->method_nr = method_nr; |
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313 if (cryptmethods[method_nr].init_fn( |
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314 state, key, salt, salt_len, seed, seed_len) == FAIL) |
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315 { |
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316 vim_free(state); |
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317 return NULL; |
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318 } |
| 6122 | 319 return state; |
| 320 } | |
| 321 | |
| 322 /* | |
| 323 * Allocate a crypt state from a file header and initialize it. | |
| 324 * Assumes that header contains at least the number of bytes that | |
| 325 * crypt_get_header_len() returns for "method_nr". | |
| 326 */ | |
| 327 cryptstate_T * | |
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328 crypt_create_from_header( |
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329 int method_nr, |
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330 char_u *key, |
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331 char_u *header) |
| 6122 | 332 { |
| 333 char_u *salt = NULL; | |
| 334 char_u *seed = NULL; | |
| 335 int salt_len = cryptmethods[method_nr].salt_len; | |
| 336 int seed_len = cryptmethods[method_nr].seed_len; | |
| 337 | |
| 338 if (salt_len > 0) | |
| 339 salt = header + CRYPT_MAGIC_LEN; | |
| 340 if (seed_len > 0) | |
| 341 seed = header + CRYPT_MAGIC_LEN + salt_len; | |
| 342 | |
| 343 return crypt_create(method_nr, key, salt, salt_len, seed, seed_len); | |
| 344 } | |
| 345 | |
| 346 /* | |
| 347 * Read the crypt method specific header data from "fp". | |
| 348 * Return an allocated cryptstate_T or NULL on error. | |
| 349 */ | |
| 350 cryptstate_T * | |
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351 crypt_create_from_file(FILE *fp, char_u *key) |
| 6122 | 352 { |
| 353 int method_nr; | |
| 354 int header_len; | |
| 355 char magic_buffer[CRYPT_MAGIC_LEN]; | |
| 356 char_u *buffer; | |
| 357 cryptstate_T *state; | |
| 358 | |
| 359 if (fread(magic_buffer, CRYPT_MAGIC_LEN, 1, fp) != 1) | |
| 360 return NULL; | |
| 361 method_nr = crypt_method_nr_from_magic(magic_buffer, CRYPT_MAGIC_LEN); | |
| 362 if (method_nr < 0) | |
| 363 return NULL; | |
| 364 | |
| 365 header_len = crypt_get_header_len(method_nr); | |
| 366 if ((buffer = alloc(header_len)) == NULL) | |
| 367 return NULL; | |
| 368 mch_memmove(buffer, magic_buffer, CRYPT_MAGIC_LEN); | |
| 369 if (header_len > CRYPT_MAGIC_LEN | |
| 370 && fread(buffer + CRYPT_MAGIC_LEN, | |
| 371 header_len - CRYPT_MAGIC_LEN, 1, fp) != 1) | |
| 372 { | |
| 373 vim_free(buffer); | |
| 374 return NULL; | |
| 375 } | |
| 376 | |
| 377 state = crypt_create_from_header(method_nr, key, buffer); | |
| 378 vim_free(buffer); | |
| 379 return state; | |
| 380 } | |
| 381 | |
| 382 /* | |
| 383 * Allocate a cryptstate_T for writing and initialize it with "key". | |
| 384 * Allocates and fills in the header and stores it in "header", setting | |
| 385 * "header_len". The header may include salt and seed, depending on | |
| 386 * cryptmethod. Caller must free header. | |
| 387 * Returns the state or NULL on failure. | |
| 388 */ | |
| 389 cryptstate_T * | |
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390 crypt_create_for_writing( |
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391 int method_nr, |
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392 char_u *key, |
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393 char_u **header, |
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394 int *header_len) |
| 6122 | 395 { |
| 396 int len = crypt_get_header_len(method_nr); | |
| 397 char_u *salt = NULL; | |
| 398 char_u *seed = NULL; | |
| 399 int salt_len = cryptmethods[method_nr].salt_len; | |
| 400 int seed_len = cryptmethods[method_nr].seed_len; | |
| 401 cryptstate_T *state; | |
| 402 | |
| 403 *header_len = len; | |
| 404 *header = alloc(len); | |
| 405 if (*header == NULL) | |
| 406 return NULL; | |
| 407 | |
| 408 mch_memmove(*header, cryptmethods[method_nr].magic, CRYPT_MAGIC_LEN); | |
| 409 if (salt_len > 0 || seed_len > 0) | |
| 410 { | |
| 411 if (salt_len > 0) | |
| 412 salt = *header + CRYPT_MAGIC_LEN; | |
| 413 if (seed_len > 0) | |
| 414 seed = *header + CRYPT_MAGIC_LEN + salt_len; | |
| 415 | |
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416 // TODO: Should this be crypt method specific? (Probably not worth |
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417 // it). sha2_seed is pretty bad for large amounts of entropy, so make |
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418 // that into something which is suitable for anything. |
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419 #ifdef FEAT_SODIUM |
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420 if (sodium_init() >= 0) |
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421 { |
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422 if (salt_len > 0) |
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423 randombytes_buf(salt, salt_len); |
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424 if (seed_len > 0) |
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425 randombytes_buf(seed, seed_len); |
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426 } |
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427 else |
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428 #endif |
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429 sha2_seed(salt, salt_len, seed, seed_len); |
| 6122 | 430 } |
| 431 state = crypt_create(method_nr, key, salt, salt_len, seed, seed_len); | |
| 432 if (state == NULL) | |
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433 VIM_CLEAR(*header); |
| 6122 | 434 return state; |
| 435 } | |
| 436 | |
| 437 /* | |
| 438 * Free the crypt state. | |
| 439 */ | |
| 440 void | |
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441 crypt_free_state(cryptstate_T *state) |
| 6122 | 442 { |
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443 #ifdef FEAT_SODIUM |
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444 if (state->method_nr == CRYPT_M_SOD) |
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445 { |
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446 sodium_munlock(((sodium_state_T *)state->method_state)->key, |
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447 crypto_box_SEEDBYTES); |
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448 sodium_memzero(state->method_state, sizeof(sodium_state_T)); |
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449 sodium_free(state->method_state); |
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450 } |
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451 else |
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452 #endif |
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453 vim_free(state->method_state); |
| 6122 | 454 vim_free(state); |
| 455 } | |
| 456 | |
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457 #ifdef CRYPT_NOT_INPLACE |
| 6122 | 458 /* |
| 459 * Encode "from[len]" and store the result in a newly allocated buffer, which | |
| 460 * is stored in "newptr". | |
| 461 * Return number of bytes in "newptr", 0 for need more or -1 on error. | |
| 462 */ | |
| 463 long | |
|
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464 crypt_encode_alloc( |
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465 cryptstate_T *state, |
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466 char_u *from, |
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467 size_t len, |
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468 char_u **newptr, |
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469 int last) |
| 6122 | 470 { |
| 471 cryptmethod_T *method = &cryptmethods[state->method_nr]; | |
| 472 | |
| 473 if (method->encode_buffer_fn != NULL) | |
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474 // Has buffer function, pass through. |
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475 return method->encode_buffer_fn(state, from, len, newptr, last); |
| 6122 | 476 if (len == 0) |
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477 // Not buffering, just return EOF. |
| 6132 | 478 return (long)len; |
| 6122 | 479 |
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480 *newptr = alloc(len + 50); |
| 6122 | 481 if (*newptr == NULL) |
| 482 return -1; | |
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483 method->encode_fn(state, from, len, *newptr, last); |
| 6132 | 484 return (long)len; |
| 6122 | 485 } |
| 486 | |
| 487 /* | |
| 488 * Decrypt "ptr[len]" and store the result in a newly allocated buffer, which | |
| 489 * is stored in "newptr". | |
| 490 * Return number of bytes in "newptr", 0 for need more or -1 on error. | |
| 491 */ | |
| 492 long | |
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493 crypt_decode_alloc( |
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494 cryptstate_T *state, |
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495 char_u *ptr, |
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496 long len, |
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497 char_u **newptr, |
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498 int last) |
| 6122 | 499 { |
| 500 cryptmethod_T *method = &cryptmethods[state->method_nr]; | |
| 501 | |
| 502 if (method->decode_buffer_fn != NULL) | |
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503 // Has buffer function, pass through. |
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504 return method->decode_buffer_fn(state, ptr, len, newptr, last); |
| 6122 | 505 |
| 506 if (len == 0) | |
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507 // Not buffering, just return EOF. |
| 6122 | 508 return len; |
| 509 | |
| 510 *newptr = alloc(len); | |
| 511 if (*newptr == NULL) | |
| 512 return -1; | |
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513 method->decode_fn(state, ptr, len, *newptr, last); |
| 6122 | 514 return len; |
| 515 } | |
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516 #endif |
| 6122 | 517 |
| 518 /* | |
| 519 * Encrypting "from[len]" into "to[len]". | |
| 520 */ | |
| 521 void | |
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522 crypt_encode( |
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523 cryptstate_T *state, |
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524 char_u *from, |
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525 size_t len, |
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526 char_u *to, |
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527 int last) |
| 6122 | 528 { |
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529 cryptmethods[state->method_nr].encode_fn(state, from, len, to, last); |
| 6122 | 530 } |
| 531 | |
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532 #if 0 // unused |
| 6122 | 533 /* |
| 534 * decrypting "from[len]" into "to[len]". | |
| 535 */ | |
| 536 void | |
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537 crypt_decode( |
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538 cryptstate_T *state, |
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539 char_u *from, |
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540 size_t len, |
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541 char_u *to, |
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542 int last) |
| 6122 | 543 { |
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544 cryptmethods[state->method_nr].decode_fn(state, from, len, to, last); |
| 6122 | 545 } |
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546 #endif |
| 6122 | 547 |
| 548 /* | |
| 549 * Simple inplace encryption, modifies "buf[len]" in place. | |
| 550 */ | |
| 551 void | |
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552 crypt_encode_inplace( |
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553 cryptstate_T *state, |
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554 char_u *buf, |
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555 size_t len, |
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556 int last) |
| 6122 | 557 { |
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558 cryptmethods[state->method_nr].encode_inplace_fn(state, buf, len, |
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559 buf, last); |
| 6122 | 560 } |
| 561 | |
| 562 /* | |
| 563 * Simple inplace decryption, modifies "buf[len]" in place. | |
| 564 */ | |
| 565 void | |
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566 crypt_decode_inplace( |
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567 cryptstate_T *state, |
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568 char_u *buf, |
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569 size_t len, |
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570 int last) |
| 6122 | 571 { |
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572 cryptmethods[state->method_nr].decode_inplace_fn(state, buf, len, |
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573 buf, last); |
| 6122 | 574 } |
| 575 | |
| 576 /* | |
| 577 * Free an allocated crypt key. Clear the text to make sure it doesn't stay | |
| 578 * in memory anywhere. | |
| 579 */ | |
| 580 void | |
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581 crypt_free_key(char_u *key) |
| 6122 | 582 { |
| 583 char_u *p; | |
| 584 | |
| 585 if (key != NULL) | |
| 586 { | |
| 587 for (p = key; *p != NUL; ++p) | |
| 588 *p = 0; | |
| 589 vim_free(key); | |
| 590 } | |
| 591 } | |
| 592 | |
| 593 /* | |
| 6353 | 594 * Check the crypt method and give a warning if it's outdated. |
| 595 */ | |
| 596 void | |
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597 crypt_check_method(int method) |
| 6353 | 598 { |
| 599 if (method < CRYPT_M_BF2) | |
| 600 { | |
| 601 msg_scroll = TRUE; | |
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602 msg(_("Warning: Using a weak encryption method; see :help 'cm'")); |
| 6353 | 603 } |
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604 } |
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605 |
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606 #ifdef FEAT_SODIUM |
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607 static void |
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608 crypt_check_swapfile_curbuf(void) |
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609 { |
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610 int method = crypt_get_method_nr(curbuf); |
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611 if (method == CRYPT_M_SOD) |
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612 { |
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613 // encryption uses padding and MAC, that does not work very well with |
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614 // swap and undo files, so disable them |
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615 mf_close_file(curbuf, TRUE); // remove the swap file |
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616 set_option_value((char_u *)"swf", 0, NULL, OPT_LOCAL); |
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617 msg_scroll = TRUE; |
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618 msg(_("Note: Encryption of swapfile not supported, disabling swap file")); |
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619 } |
| 6353 | 620 } |
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621 #endif |
| 6353 | 622 |
| 623 void | |
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624 crypt_check_current_method(void) |
| 6353 | 625 { |
| 626 crypt_check_method(crypt_get_method_nr(curbuf)); | |
| 627 } | |
| 628 | |
| 629 /* | |
| 6122 | 630 * Ask the user for a crypt key. |
| 631 * When "store" is TRUE, the new key is stored in the 'key' option, and the | |
| 632 * 'key' option value is returned: Don't free it. | |
| 633 * When "store" is FALSE, the typed key is returned in allocated memory. | |
| 634 * Returns NULL on failure. | |
| 635 */ | |
| 636 char_u * | |
|
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637 crypt_get_key( |
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638 int store, |
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639 int twice) // Ask for the key twice. |
| 6122 | 640 { |
| 641 char_u *p1, *p2 = NULL; | |
| 642 int round; | |
| 643 | |
| 644 for (round = 0; ; ++round) | |
| 645 { | |
| 646 cmdline_star = TRUE; | |
| 647 cmdline_row = msg_row; | |
| 648 p1 = getcmdline_prompt(NUL, round == 0 | |
| 649 ? (char_u *)_("Enter encryption key: ") | |
| 650 : (char_u *)_("Enter same key again: "), 0, EXPAND_NOTHING, | |
| 651 NULL); | |
| 652 cmdline_star = FALSE; | |
| 653 | |
| 654 if (p1 == NULL) | |
| 655 break; | |
| 656 | |
| 657 if (round == twice) | |
| 658 { | |
| 659 if (p2 != NULL && STRCMP(p1, p2) != 0) | |
| 660 { | |
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661 msg(_("Keys don't match!")); |
| 6122 | 662 crypt_free_key(p1); |
| 663 crypt_free_key(p2); | |
| 664 p2 = NULL; | |
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665 round = -1; // do it again |
| 6122 | 666 continue; |
| 667 } | |
| 668 | |
| 669 if (store) | |
| 670 { | |
| 671 set_option_value((char_u *)"key", 0L, p1, OPT_LOCAL); | |
| 672 crypt_free_key(p1); | |
| 673 p1 = curbuf->b_p_key; | |
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674 #ifdef FEAT_SODIUM |
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675 crypt_check_swapfile_curbuf(); |
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676 #endif |
| 6122 | 677 } |
| 678 break; | |
| 679 } | |
| 680 p2 = p1; | |
| 681 } | |
| 682 | |
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683 // since the user typed this, no need to wait for return |
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684 if (crypt_get_method_nr(curbuf) != CRYPT_M_SOD) |
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685 { |
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686 if (msg_didout) |
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687 msg_putchar('\n'); |
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688 need_wait_return = FALSE; |
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689 msg_didout = FALSE; |
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690 } |
| 6122 | 691 |
| 692 crypt_free_key(p2); | |
| 693 return p1; | |
| 694 } | |
| 695 | |
| 696 | |
| 697 /* | |
| 698 * Append a message to IObuff for the encryption/decryption method being used. | |
| 699 */ | |
| 700 void | |
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701 crypt_append_msg( |
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702 buf_T *buf) |
| 6122 | 703 { |
| 704 if (crypt_get_method_nr(buf) == 0) | |
| 705 STRCAT(IObuff, _("[crypted]")); | |
| 706 else | |
| 707 { | |
| 708 STRCAT(IObuff, "["); | |
| 709 STRCAT(IObuff, *buf->b_p_cm == NUL ? p_cm : buf->b_p_cm); | |
| 710 STRCAT(IObuff, "]"); | |
| 711 } | |
| 712 } | |
| 713 | |
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714 int |
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715 crypt_sodium_init( |
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716 cryptstate_T *state UNUSED, |
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717 char_u *key UNUSED, |
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718 char_u *salt UNUSED, |
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719 int salt_len UNUSED, |
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720 char_u *seed UNUSED, |
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721 int seed_len UNUSED) |
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722 { |
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723 # ifdef FEAT_SODIUM |
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724 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES |
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725 unsigned char dkey[crypto_box_SEEDBYTES]; // 32 |
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726 sodium_state_T *sd_state; |
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727 int retval = 0; |
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728 |
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729 if (sodium_init() < 0) |
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730 return FAIL; |
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731 |
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732 sd_state = (sodium_state_T *)sodium_malloc(sizeof(sodium_state_T)); |
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733 sodium_memzero(sd_state, sizeof(sodium_state_T)); |
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734 |
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735 // derive a key from the password |
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736 if (crypto_pwhash(dkey, sizeof(dkey), (const char *)key, STRLEN(key), salt, |
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737 crypto_pwhash_OPSLIMIT_INTERACTIVE, crypto_pwhash_MEMLIMIT_INTERACTIVE, |
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738 crypto_pwhash_ALG_DEFAULT) != 0) |
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739 { |
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740 // out of memory |
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741 sodium_free(sd_state); |
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742 return FAIL; |
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743 } |
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744 memcpy(sd_state->key, dkey, crypto_box_SEEDBYTES); |
|
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745 |
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746 retval += sodium_mlock(sd_state->key, crypto_box_SEEDBYTES); |
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747 retval += sodium_mlock(key, STRLEN(key)); |
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748 |
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749 if (retval < 0) |
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750 { |
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751 emsg(_(e_encryption_sodium_mlock_failed)); |
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752 sodium_free(sd_state); |
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753 return FAIL; |
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754 } |
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755 sd_state->count = 0; |
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756 state->method_state = sd_state; |
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757 |
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758 return OK; |
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759 # else |
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760 emsg(e_libsodium_not_built_in); |
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761 return FAIL; |
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762 # endif |
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763 } |
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764 |
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765 /* |
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766 * Encrypt "from[len]" into "to[len]". |
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767 * "from" and "to" can be equal to encrypt in place. |
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768 * Call needs to ensure that there is enough space in to (for the header) |
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769 */ |
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770 #if 0 // Currently unused |
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771 void |
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772 crypt_sodium_encode( |
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773 cryptstate_T *state UNUSED, |
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774 char_u *from UNUSED, |
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775 size_t len UNUSED, |
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776 char_u *to UNUSED, |
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777 int last UNUSED) |
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778 { |
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779 # ifdef FEAT_SODIUM |
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780 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES |
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781 sodium_state_T *sod_st = state->method_state; |
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782 unsigned char tag = last |
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783 ? 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
|
784 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
785 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
|
786 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
787 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
|
788 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
789 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
|
790 return; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
791 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
792 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
|
793 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
|
794 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
|
795 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
796 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
797 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
|
798 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
799 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
|
800 return; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
801 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
802 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
803 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
|
804 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
|
805 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
806 sod_st->count++; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
807 # endif |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
808 } |
|
24990
85d1e82ed134
patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents:
24986
diff
changeset
|
809 #endif |
|
24970
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 /* |
|
24970
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
812 * 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
|
813 * "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
|
814 */ |
|
24990
85d1e82ed134
patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents:
24986
diff
changeset
|
815 #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
|
816 void |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
817 crypt_sodium_decode( |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
818 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
|
819 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
|
820 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
|
821 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
|
822 int last UNUSED) |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
823 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
824 # ifdef FEAT_SODIUM |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
825 // 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
|
826 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
|
827 unsigned char tag; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
828 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
|
829 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
|
830 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
|
831 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
|
832 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
833 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
|
834 && 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
|
835 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
836 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
|
837 return; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
838 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
839 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
840 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
|
841 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
842 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
|
843 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
844 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
|
845 return; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
846 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
847 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
|
848 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
849 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
|
850 &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
|
851 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
852 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
|
853 goto fail; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
854 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
855 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
856 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
|
857 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
|
858 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
859 if (p1 == p2) |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
860 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
|
861 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
862 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
863 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
|
864 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
865 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
|
866 goto fail; |
|
24970
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
867 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
868 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
|
869 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
|
870 { |
|
24986
fa31a0ea09e1
patch 8.2.3030: Coverity reports a memory leak
Bram Moolenaar <Bram@vim.org>
parents:
24970
diff
changeset
|
871 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
|
872 goto fail; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
873 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
874 sod_st->count++; |
|
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 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
|
877 { |
|
24986
fa31a0ea09e1
patch 8.2.3030: Coverity reports a memory leak
Bram Moolenaar <Bram@vim.org>
parents:
24970
diff
changeset
|
878 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
|
879 goto fail; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
880 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
881 if (p1 == p2) |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
882 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
|
883 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
884 fail: |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
885 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
|
886 # endif |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
887 } |
|
24990
85d1e82ed134
patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents:
24986
diff
changeset
|
888 #endif |
|
24970
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
889 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
890 /* |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
891 * 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
|
892 * "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
|
893 */ |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
894 long |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
895 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
|
896 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
|
897 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
|
898 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
|
899 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
|
900 int last UNUSED) |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
901 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
902 # ifdef FEAT_SODIUM |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
903 // 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
|
904 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
|
905 char_u *ptr; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
906 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
|
907 ? 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
|
908 int length; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
909 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
|
910 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
|
911 |
|
24990
85d1e82ed134
patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
Bram Moolenaar <Bram@vim.org>
parents:
24986
diff
changeset
|
912 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
|
913 + (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
|
914 *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
|
915 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
|
916 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
917 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
|
918 return -1; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
919 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
920 ptr = *buf_out; |
|
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 if (first) |
|
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 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
|
925 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
|
926 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
|
927 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
928 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
929 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
|
930 &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
|
931 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
932 sod_st->count++; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
933 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
|
934 ? 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
|
935 # else |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
936 return -1; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
937 # endif |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
938 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
939 |
|
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 * 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
|
942 * "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
|
943 */ |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
944 long |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
945 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
|
946 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
|
947 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
|
948 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
|
949 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
|
950 int last UNUSED) |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
951 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
952 # ifdef FEAT_SODIUM |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
953 // 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
|
954 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
|
955 unsigned char tag; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
956 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
|
957 *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
|
958 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
|
959 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
960 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
|
961 return -1; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
962 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
963 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
964 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
|
965 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
966 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
|
967 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
|
968 { |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
969 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
|
970 return -1; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
971 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
972 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
|
973 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
|
974 sod_st->count++; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
975 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
976 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
|
977 *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
|
978 { |
|
24986
fa31a0ea09e1
patch 8.2.3030: Coverity reports a memory leak
Bram Moolenaar <Bram@vim.org>
parents:
24970
diff
changeset
|
979 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
|
980 return -1; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
981 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
982 |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
983 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
|
984 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
|
985 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
|
986 # else |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
987 return -1; |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
988 # endif |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
989 } |
|
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
990 |
|
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18498
diff
changeset
|
991 #endif // FEAT_CRYPT |