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Diffstat (limited to 'src/lib/libcrypto/evp/digest.c')
-rw-r--r-- | src/lib/libcrypto/evp/digest.c | 405 |
1 files changed, 0 insertions, 405 deletions
diff --git a/src/lib/libcrypto/evp/digest.c b/src/lib/libcrypto/evp/digest.c deleted file mode 100644 index 6d8ed9b499..0000000000 --- a/src/lib/libcrypto/evp/digest.c +++ /dev/null | |||
@@ -1,405 +0,0 @@ | |||
1 | /* $OpenBSD: digest.c,v 1.26 2015/02/11 03:19:37 doug Exp $ */ | ||
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | ||
3 | * All rights reserved. | ||
4 | * | ||
5 | * This package is an SSL implementation written | ||
6 | * by Eric Young (eay@cryptsoft.com). | ||
7 | * The implementation was written so as to conform with Netscapes SSL. | ||
8 | * | ||
9 | * This library is free for commercial and non-commercial use as long as | ||
10 | * the following conditions are aheared to. The following conditions | ||
11 | * apply to all code found in this distribution, be it the RC4, RSA, | ||
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | ||
13 | * included with this distribution is covered by the same copyright terms | ||
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | ||
15 | * | ||
16 | * Copyright remains Eric Young's, and as such any Copyright notices in | ||
17 | * the code are not to be removed. | ||
18 | * If this package is used in a product, Eric Young should be given attribution | ||
19 | * as the author of the parts of the library used. | ||
20 | * This can be in the form of a textual message at program startup or | ||
21 | * in documentation (online or textual) provided with the package. | ||
22 | * | ||
23 | * Redistribution and use in source and binary forms, with or without | ||
24 | * modification, are permitted provided that the following conditions | ||
25 | * are met: | ||
26 | * 1. Redistributions of source code must retain the copyright | ||
27 | * notice, this list of conditions and the following disclaimer. | ||
28 | * 2. Redistributions in binary form must reproduce the above copyright | ||
29 | * notice, this list of conditions and the following disclaimer in the | ||
30 | * documentation and/or other materials provided with the distribution. | ||
31 | * 3. All advertising materials mentioning features or use of this software | ||
32 | * must display the following acknowledgement: | ||
33 | * "This product includes cryptographic software written by | ||
34 | * Eric Young (eay@cryptsoft.com)" | ||
35 | * The word 'cryptographic' can be left out if the rouines from the library | ||
36 | * being used are not cryptographic related :-). | ||
37 | * 4. If you include any Windows specific code (or a derivative thereof) from | ||
38 | * the apps directory (application code) you must include an acknowledgement: | ||
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | ||
40 | * | ||
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | ||
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
51 | * SUCH DAMAGE. | ||
52 | * | ||
53 | * The licence and distribution terms for any publically available version or | ||
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | ||
55 | * copied and put under another distribution licence | ||
56 | * [including the GNU Public Licence.] | ||
57 | */ | ||
58 | /* ==================================================================== | ||
59 | * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. | ||
60 | * | ||
61 | * Redistribution and use in source and binary forms, with or without | ||
62 | * modification, are permitted provided that the following conditions | ||
63 | * are met: | ||
64 | * | ||
65 | * 1. Redistributions of source code must retain the above copyright | ||
66 | * notice, this list of conditions and the following disclaimer. | ||
67 | * | ||
68 | * 2. Redistributions in binary form must reproduce the above copyright | ||
69 | * notice, this list of conditions and the following disclaimer in | ||
70 | * the documentation and/or other materials provided with the | ||
71 | * distribution. | ||
72 | * | ||
73 | * 3. All advertising materials mentioning features or use of this | ||
74 | * software must display the following acknowledgment: | ||
75 | * "This product includes software developed by the OpenSSL Project | ||
76 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | ||
77 | * | ||
78 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
79 | * endorse or promote products derived from this software without | ||
80 | * prior written permission. For written permission, please contact | ||
81 | * openssl-core@openssl.org. | ||
82 | * | ||
83 | * 5. Products derived from this software may not be called "OpenSSL" | ||
84 | * nor may "OpenSSL" appear in their names without prior written | ||
85 | * permission of the OpenSSL Project. | ||
86 | * | ||
87 | * 6. Redistributions of any form whatsoever must retain the following | ||
88 | * acknowledgment: | ||
89 | * "This product includes software developed by the OpenSSL Project | ||
90 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | ||
91 | * | ||
92 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
93 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
94 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
95 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
96 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
97 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
98 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
99 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
100 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
101 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
102 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
103 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
104 | * ==================================================================== | ||
105 | * | ||
106 | * This product includes cryptographic software written by Eric Young | ||
107 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
108 | * Hudson (tjh@cryptsoft.com). | ||
109 | * | ||
110 | */ | ||
111 | |||
112 | #include <stdio.h> | ||
113 | #include <string.h> | ||
114 | |||
115 | #include <openssl/opensslconf.h> | ||
116 | |||
117 | #include <openssl/err.h> | ||
118 | #include <openssl/evp.h> | ||
119 | #include <openssl/objects.h> | ||
120 | |||
121 | #ifndef OPENSSL_NO_ENGINE | ||
122 | #include <openssl/engine.h> | ||
123 | #endif | ||
124 | |||
125 | void | ||
126 | EVP_MD_CTX_init(EVP_MD_CTX *ctx) | ||
127 | { | ||
128 | memset(ctx, 0, sizeof *ctx); | ||
129 | } | ||
130 | |||
131 | EVP_MD_CTX * | ||
132 | EVP_MD_CTX_create(void) | ||
133 | { | ||
134 | return calloc(1, sizeof(EVP_MD_CTX)); | ||
135 | } | ||
136 | |||
137 | int | ||
138 | EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type) | ||
139 | { | ||
140 | EVP_MD_CTX_init(ctx); | ||
141 | return EVP_DigestInit_ex(ctx, type, NULL); | ||
142 | } | ||
143 | |||
144 | int | ||
145 | EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl) | ||
146 | { | ||
147 | EVP_MD_CTX_clear_flags(ctx, EVP_MD_CTX_FLAG_CLEANED); | ||
148 | |||
149 | #ifndef OPENSSL_NO_ENGINE | ||
150 | /* Whether it's nice or not, "Inits" can be used on "Final"'d contexts | ||
151 | * so this context may already have an ENGINE! Try to avoid releasing | ||
152 | * the previous handle, re-querying for an ENGINE, and having a | ||
153 | * reinitialisation, when it may all be unecessary. */ | ||
154 | if (ctx->engine && ctx->digest && (!type || | ||
155 | (type && (type->type == ctx->digest->type)))) | ||
156 | goto skip_to_init; | ||
157 | if (type) { | ||
158 | /* Ensure an ENGINE left lying around from last time is cleared | ||
159 | * (the previous check attempted to avoid this if the same | ||
160 | * ENGINE and EVP_MD could be used). */ | ||
161 | if (ctx->engine) | ||
162 | ENGINE_finish(ctx->engine); | ||
163 | if (impl) { | ||
164 | if (!ENGINE_init(impl)) { | ||
165 | EVPerr(EVP_F_EVP_DIGESTINIT_EX, | ||
166 | EVP_R_INITIALIZATION_ERROR); | ||
167 | return 0; | ||
168 | } | ||
169 | } else | ||
170 | /* Ask if an ENGINE is reserved for this job */ | ||
171 | impl = ENGINE_get_digest_engine(type->type); | ||
172 | if (impl) { | ||
173 | /* There's an ENGINE for this job ... (apparently) */ | ||
174 | const EVP_MD *d = ENGINE_get_digest(impl, type->type); | ||
175 | if (!d) { | ||
176 | /* Same comment from evp_enc.c */ | ||
177 | EVPerr(EVP_F_EVP_DIGESTINIT_EX, | ||
178 | EVP_R_INITIALIZATION_ERROR); | ||
179 | ENGINE_finish(impl); | ||
180 | return 0; | ||
181 | } | ||
182 | /* We'll use the ENGINE's private digest definition */ | ||
183 | type = d; | ||
184 | /* Store the ENGINE functional reference so we know | ||
185 | * 'type' came from an ENGINE and we need to release | ||
186 | * it when done. */ | ||
187 | ctx->engine = impl; | ||
188 | } else | ||
189 | ctx->engine = NULL; | ||
190 | } else if (!ctx->digest) { | ||
191 | EVPerr(EVP_F_EVP_DIGESTINIT_EX, EVP_R_NO_DIGEST_SET); | ||
192 | return 0; | ||
193 | } | ||
194 | #endif | ||
195 | if (ctx->digest != type) { | ||
196 | if (ctx->digest && ctx->digest->ctx_size && ctx->md_data && | ||
197 | !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_REUSE)) { | ||
198 | explicit_bzero(ctx->md_data, ctx->digest->ctx_size); | ||
199 | free(ctx->md_data); | ||
200 | ctx->md_data = NULL; | ||
201 | } | ||
202 | ctx->digest = type; | ||
203 | if (!(ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) && type->ctx_size) { | ||
204 | ctx->update = type->update; | ||
205 | ctx->md_data = malloc(type->ctx_size); | ||
206 | if (ctx->md_data == NULL) { | ||
207 | EVP_PKEY_CTX_free(ctx->pctx); | ||
208 | ctx->pctx = NULL; | ||
209 | EVPerr(EVP_F_EVP_DIGESTINIT_EX, | ||
210 | ERR_R_MALLOC_FAILURE); | ||
211 | return 0; | ||
212 | } | ||
213 | } | ||
214 | } | ||
215 | #ifndef OPENSSL_NO_ENGINE | ||
216 | skip_to_init: | ||
217 | #endif | ||
218 | if (ctx->pctx) { | ||
219 | int r; | ||
220 | r = EVP_PKEY_CTX_ctrl(ctx->pctx, -1, EVP_PKEY_OP_TYPE_SIG, | ||
221 | EVP_PKEY_CTRL_DIGESTINIT, 0, ctx); | ||
222 | if (r <= 0 && (r != -2)) | ||
223 | return 0; | ||
224 | } | ||
225 | if (ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) | ||
226 | return 1; | ||
227 | return ctx->digest->init(ctx); | ||
228 | } | ||
229 | |||
230 | int | ||
231 | EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *data, size_t count) | ||
232 | { | ||
233 | return ctx->update(ctx, data, count); | ||
234 | } | ||
235 | |||
236 | /* The caller can assume that this removes any secret data from the context */ | ||
237 | int | ||
238 | EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) | ||
239 | { | ||
240 | int ret; | ||
241 | |||
242 | ret = EVP_DigestFinal_ex(ctx, md, size); | ||
243 | EVP_MD_CTX_cleanup(ctx); | ||
244 | return ret; | ||
245 | } | ||
246 | |||
247 | /* The caller can assume that this removes any secret data from the context */ | ||
248 | int | ||
249 | EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) | ||
250 | { | ||
251 | int ret; | ||
252 | |||
253 | if ((size_t)ctx->digest->md_size > EVP_MAX_MD_SIZE) { | ||
254 | EVPerr(EVP_F_EVP_DIGESTFINAL_EX, EVP_R_TOO_LARGE); | ||
255 | return 0; | ||
256 | } | ||
257 | ret = ctx->digest->final(ctx, md); | ||
258 | if (size != NULL) | ||
259 | *size = ctx->digest->md_size; | ||
260 | if (ctx->digest->cleanup) { | ||
261 | ctx->digest->cleanup(ctx); | ||
262 | EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_CLEANED); | ||
263 | } | ||
264 | memset(ctx->md_data, 0, ctx->digest->ctx_size); | ||
265 | return ret; | ||
266 | } | ||
267 | |||
268 | int | ||
269 | EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in) | ||
270 | { | ||
271 | EVP_MD_CTX_init(out); | ||
272 | return EVP_MD_CTX_copy_ex(out, in); | ||
273 | } | ||
274 | |||
275 | int | ||
276 | EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in) | ||
277 | { | ||
278 | unsigned char *tmp_buf; | ||
279 | |||
280 | if ((in == NULL) || (in->digest == NULL)) { | ||
281 | EVPerr(EVP_F_EVP_MD_CTX_COPY_EX, EVP_R_INPUT_NOT_INITIALIZED); | ||
282 | return 0; | ||
283 | } | ||
284 | #ifndef OPENSSL_NO_ENGINE | ||
285 | /* Make sure it's safe to copy a digest context using an ENGINE */ | ||
286 | if (in->engine && !ENGINE_init(in->engine)) { | ||
287 | EVPerr(EVP_F_EVP_MD_CTX_COPY_EX, ERR_R_ENGINE_LIB); | ||
288 | return 0; | ||
289 | } | ||
290 | #endif | ||
291 | |||
292 | if (out->digest == in->digest) { | ||
293 | tmp_buf = out->md_data; | ||
294 | EVP_MD_CTX_set_flags(out, EVP_MD_CTX_FLAG_REUSE); | ||
295 | } else | ||
296 | tmp_buf = NULL; | ||
297 | EVP_MD_CTX_cleanup(out); | ||
298 | memcpy(out, in, sizeof *out); | ||
299 | |||
300 | if (in->md_data && out->digest->ctx_size) { | ||
301 | if (tmp_buf) | ||
302 | out->md_data = tmp_buf; | ||
303 | else { | ||
304 | out->md_data = malloc(out->digest->ctx_size); | ||
305 | if (!out->md_data) { | ||
306 | EVPerr(EVP_F_EVP_MD_CTX_COPY_EX, | ||
307 | ERR_R_MALLOC_FAILURE); | ||
308 | return 0; | ||
309 | } | ||
310 | } | ||
311 | memcpy(out->md_data, in->md_data, out->digest->ctx_size); | ||
312 | } | ||
313 | |||
314 | out->update = in->update; | ||
315 | |||
316 | if (in->pctx) { | ||
317 | out->pctx = EVP_PKEY_CTX_dup(in->pctx); | ||
318 | if (!out->pctx) { | ||
319 | EVP_MD_CTX_cleanup(out); | ||
320 | return 0; | ||
321 | } | ||
322 | } | ||
323 | |||
324 | if (out->digest->copy) | ||
325 | return out->digest->copy(out, in); | ||
326 | |||
327 | return 1; | ||
328 | } | ||
329 | |||
330 | int | ||
331 | EVP_Digest(const void *data, size_t count, | ||
332 | unsigned char *md, unsigned int *size, const EVP_MD *type, ENGINE *impl) | ||
333 | { | ||
334 | EVP_MD_CTX ctx; | ||
335 | int ret; | ||
336 | |||
337 | EVP_MD_CTX_init(&ctx); | ||
338 | EVP_MD_CTX_set_flags(&ctx, EVP_MD_CTX_FLAG_ONESHOT); | ||
339 | ret = EVP_DigestInit_ex(&ctx, type, impl) && | ||
340 | EVP_DigestUpdate(&ctx, data, count) && | ||
341 | EVP_DigestFinal_ex(&ctx, md, size); | ||
342 | EVP_MD_CTX_cleanup(&ctx); | ||
343 | |||
344 | return ret; | ||
345 | } | ||
346 | |||
347 | void | ||
348 | EVP_MD_CTX_destroy(EVP_MD_CTX *ctx) | ||
349 | { | ||
350 | if (ctx) { | ||
351 | EVP_MD_CTX_cleanup(ctx); | ||
352 | free(ctx); | ||
353 | } | ||
354 | } | ||
355 | |||
356 | /* This call frees resources associated with the context */ | ||
357 | int | ||
358 | EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx) | ||
359 | { | ||
360 | /* Don't assume ctx->md_data was cleaned in EVP_Digest_Final, | ||
361 | * because sometimes only copies of the context are ever finalised. | ||
362 | */ | ||
363 | if (ctx->digest && ctx->digest->cleanup && | ||
364 | !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_CLEANED)) | ||
365 | ctx->digest->cleanup(ctx); | ||
366 | if (ctx->digest && ctx->digest->ctx_size && ctx->md_data && | ||
367 | !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_REUSE)) { | ||
368 | explicit_bzero(ctx->md_data, ctx->digest->ctx_size); | ||
369 | free(ctx->md_data); | ||
370 | } | ||
371 | EVP_PKEY_CTX_free(ctx->pctx); | ||
372 | #ifndef OPENSSL_NO_ENGINE | ||
373 | if (ctx->engine) | ||
374 | /* The EVP_MD we used belongs to an ENGINE, release the | ||
375 | * functional reference we held for this reason. */ | ||
376 | ENGINE_finish(ctx->engine); | ||
377 | #endif | ||
378 | memset(ctx, 0, sizeof *ctx); | ||
379 | |||
380 | return 1; | ||
381 | } | ||
382 | |||
383 | int | ||
384 | EVP_MD_CTX_ctrl(EVP_MD_CTX *ctx, int type, int arg, void *ptr) | ||
385 | { | ||
386 | int ret; | ||
387 | |||
388 | if (!ctx->digest) { | ||
389 | EVPerr(EVP_F_EVP_MD_CTX_CTRL, EVP_R_NO_CIPHER_SET); | ||
390 | return 0; | ||
391 | } | ||
392 | |||
393 | if (!ctx->digest->md_ctrl) { | ||
394 | EVPerr(EVP_F_EVP_MD_CTX_CTRL, EVP_R_CTRL_NOT_IMPLEMENTED); | ||
395 | return 0; | ||
396 | } | ||
397 | |||
398 | ret = ctx->digest->md_ctrl(ctx, type, arg, ptr); | ||
399 | if (ret == -1) { | ||
400 | EVPerr(EVP_F_EVP_MD_CTX_CTRL, | ||
401 | EVP_R_CTRL_OPERATION_NOT_IMPLEMENTED); | ||
402 | return 0; | ||
403 | } | ||
404 | return ret; | ||
405 | } | ||