Mercurial > vim
annotate src/crypt.c @ 27097:6612e555c1c0
Added tag v8.2.4077 for changeset d539c144aeb496e9adb320420449e0ed0417de74
author | Bram Moolenaar <Bram@vim.org> |
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date | Thu, 13 Jan 2022 16:00:05 +0100 |
parents | 268f6a3511df |
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26 * Blowfish addition originally made by Mohsin Ahmed, | |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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patch 8.1.2368: using old C style comments
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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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changeset
|
689 msg_putchar('\n'); |
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patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
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diff
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|
690 need_wait_return = FALSE; |
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patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
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691 msg_didout = FALSE; |
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patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
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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 | |
7817
83861277e6a3
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Christian Brabandt <cb@256bit.org>
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|
703 crypt_append_msg( |
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diff
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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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diff
changeset
|
718 cryptstate_T *state UNUSED, |
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|
719 char_u *key UNUSED, |
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diff
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|
720 char_u *salt UNUSED, |
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patch 8.2.3022: available encryption methods are not strong enough
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|
721 int salt_len UNUSED, |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
722 char_u *seed UNUSED, |
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parents:
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diff
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|
723 int seed_len UNUSED) |
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724 { |
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patch 8.2.3022: available encryption methods are not strong enough
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diff
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|
725 # ifdef FEAT_SODIUM |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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|
726 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES |
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diff
changeset
|
727 unsigned char dkey[crypto_box_SEEDBYTES]; // 32 |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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changeset
|
728 sodium_state_T *sd_state; |
25417
1919361a53da
patch 8.2.3245: the crypt key may appear in a swap partition
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diff
changeset
|
729 int retval = 0; |
24970
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
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|
730 |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
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diff
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|
731 if (sodium_init() < 0) |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
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|
732 return FAIL; |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
733 |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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changeset
|
734 sd_state = (sodium_state_T *)sodium_malloc(sizeof(sodium_state_T)); |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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changeset
|
735 sodium_memzero(sd_state, sizeof(sodium_state_T)); |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
736 |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
737 // derive a key from the password |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
738 if (crypto_pwhash(dkey, sizeof(dkey), (const char *)key, STRLEN(key), salt, |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
739 crypto_pwhash_OPSLIMIT_INTERACTIVE, crypto_pwhash_MEMLIMIT_INTERACTIVE, |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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|
740 crypto_pwhash_ALG_DEFAULT) != 0) |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
741 { |
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patch 8.2.3022: available encryption methods are not strong enough
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changeset
|
742 // out of memory |
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patch 8.2.3022: available encryption methods are not strong enough
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|
743 sodium_free(sd_state); |
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changeset
|
744 return FAIL; |
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patch 8.2.3022: available encryption methods are not strong enough
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|
745 } |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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changeset
|
746 memcpy(sd_state->key, dkey, crypto_box_SEEDBYTES); |
25417
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patch 8.2.3245: the crypt key may appear in a swap partition
Bram Moolenaar <Bram@vim.org>
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|
747 |
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|
748 retval += sodium_mlock(sd_state->key, crypto_box_SEEDBYTES); |
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diff
changeset
|
749 retval += sodium_mlock(key, STRLEN(key)); |
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|
750 |
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|
751 if (retval < 0) |
1919361a53da
patch 8.2.3245: the crypt key may appear in a swap partition
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|
752 { |
1919361a53da
patch 8.2.3245: the crypt key may appear in a swap partition
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diff
changeset
|
753 emsg(_(e_encryption_sodium_mlock_failed)); |
1919361a53da
patch 8.2.3245: the crypt key may appear in a swap partition
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
754 sodium_free(sd_state); |
1919361a53da
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Bram Moolenaar <Bram@vim.org>
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diff
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|
755 return FAIL; |
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patch 8.2.3245: the crypt key may appear in a swap partition
Bram Moolenaar <Bram@vim.org>
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|
756 } |
24970
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patch 8.2.3022: available encryption methods are not strong enough
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changeset
|
757 sd_state->count = 0; |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
758 state->method_state = sd_state; |
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diff
changeset
|
759 |
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patch 8.2.3022: available encryption methods are not strong enough
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parents:
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diff
changeset
|
760 return OK; |
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patch 8.2.3022: available encryption methods are not strong enough
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|
761 # else |
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patch 8.2.3022: available encryption methods are not strong enough
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changeset
|
762 emsg(e_libsodium_not_built_in); |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
763 return FAIL; |
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patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
764 # endif |
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diff
changeset
|
765 } |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
766 |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
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changeset
|
767 /* |
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patch 8.2.3022: available encryption methods are not strong enough
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changeset
|
768 * Encrypt "from[len]" into "to[len]". |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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parents:
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diff
changeset
|
769 * "from" and "to" can be equal to encrypt in place. |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
770 * Call needs to ensure that there is enough space in to (for the header) |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
771 */ |
24990
85d1e82ed134
patch 8.2.3032: build problems with MSVC, other crypt issues with libsodium
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diff
changeset
|
772 #if 0 // Currently unused |
24970
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parents:
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diff
changeset
|
773 void |
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patch 8.2.3022: available encryption methods are not strong enough
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changeset
|
774 crypt_sodium_encode( |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
775 cryptstate_T *state UNUSED, |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
776 char_u *from UNUSED, |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
777 size_t len UNUSED, |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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parents:
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diff
changeset
|
778 char_u *to UNUSED, |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
779 int last UNUSED) |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
780 { |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
781 # ifdef FEAT_SODIUM |
7e9e53a0368f
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
782 // crypto_box_SEEDBYTES == crypto_secretstream_xchacha20poly1305_KEYBYTES |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
783 sodium_state_T *sod_st = state->method_state; |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
784 unsigned char tag = last |
7e9e53a0368f
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diff
changeset
|
785 ? crypto_secretstream_xchacha20poly1305_TAG_FINAL : 0; |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
786 |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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parents:
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diff
changeset
|
787 if (sod_st->count == 0) |
7e9e53a0368f
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Bram Moolenaar <Bram@vim.org>
parents:
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changeset
|
788 { |
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patch 8.2.3022: available encryption methods are not strong enough
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changeset
|
789 if (len <= crypto_secretstream_xchacha20poly1305_HEADERBYTES) |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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parents:
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diff
changeset
|
790 { |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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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>
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changeset
|
792 return; |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
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changeset
|
793 } |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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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:
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diff
changeset
|
795 to, sod_st->key); |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
796 to += crypto_secretstream_xchacha20poly1305_HEADERBYTES; |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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diff
changeset
|
797 } |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
798 |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
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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>
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diff
changeset
|
800 { |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
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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:
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diff
changeset
|
802 return; |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
803 } |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
804 |
7e9e53a0368f
patch 8.2.3022: available encryption methods are not strong enough
Bram Moolenaar <Bram@vim.org>
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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:
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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:
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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 |