diff options
Diffstat (limited to 'src/lib/libcrypto/evp/digest.c')
| -rw-r--r-- | src/lib/libcrypto/evp/digest.c | 273 |
1 files changed, 133 insertions, 140 deletions
diff --git a/src/lib/libcrypto/evp/digest.c b/src/lib/libcrypto/evp/digest.c index 2fae68ef5e..238030820c 100644 --- a/src/lib/libcrypto/evp/digest.c +++ b/src/lib/libcrypto/evp/digest.c | |||
| @@ -5,21 +5,21 @@ | |||
| 5 | * This package is an SSL implementation written | 5 | * This package is an SSL implementation written |
| 6 | * by Eric Young (eay@cryptsoft.com). | 6 | * by Eric Young (eay@cryptsoft.com). |
| 7 | * The implementation was written so as to conform with Netscapes SSL. | 7 | * The implementation was written so as to conform with Netscapes SSL. |
| 8 | * | 8 | * |
| 9 | * This library is free for commercial and non-commercial use as long as | 9 | * This library is free for commercial and non-commercial use as long as |
| 10 | * the following conditions are aheared to. The following conditions | 10 | * the following conditions are aheared to. The following conditions |
| 11 | * apply to all code found in this distribution, be it the RC4, RSA, | 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 | 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 | 13 | * included with this distribution is covered by the same copyright terms |
| 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
| 15 | * | 15 | * |
| 16 | * Copyright remains Eric Young's, and as such any Copyright notices in | 16 | * Copyright remains Eric Young's, and as such any Copyright notices in |
| 17 | * the code are not to be removed. | 17 | * the code are not to be removed. |
| 18 | * If this package is used in a product, Eric Young should be given attribution | 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. | 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 | 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. | 21 | * in documentation (online or textual) provided with the package. |
| 22 | * | 22 | * |
| 23 | * Redistribution and use in source and binary forms, with or without | 23 | * Redistribution and use in source and binary forms, with or without |
| 24 | * modification, are permitted provided that the following conditions | 24 | * modification, are permitted provided that the following conditions |
| 25 | * are met: | 25 | * are met: |
| @@ -34,10 +34,10 @@ | |||
| 34 | * Eric Young (eay@cryptsoft.com)" | 34 | * Eric Young (eay@cryptsoft.com)" |
| 35 | * The word 'cryptographic' can be left out if the rouines from the library | 35 | * The word 'cryptographic' can be left out if the rouines from the library |
| 36 | * being used are not cryptographic related :-). | 36 | * being used are not cryptographic related :-). |
| 37 | * 4. If you include any Windows specific code (or a derivative thereof) from | 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: | 38 | * the apps directory (application code) you must include an acknowledgement: |
| 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
| 40 | * | 40 | * |
| 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| @@ -49,7 +49,7 @@ | |||
| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | 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 | 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 51 | * SUCH DAMAGE. | 51 | * SUCH DAMAGE. |
| 52 | * | 52 | * |
| 53 | * The licence and distribution terms for any publically available version or | 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 | 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be |
| 55 | * copied and put under another distribution licence | 55 | * copied and put under another distribution licence |
| @@ -63,7 +63,7 @@ | |||
| 63 | * are met: | 63 | * are met: |
| 64 | * | 64 | * |
| 65 | * 1. Redistributions of source code must retain the above copyright | 65 | * 1. Redistributions of source code must retain the above copyright |
| 66 | * notice, this list of conditions and the following disclaimer. | 66 | * notice, this list of conditions and the following disclaimer. |
| 67 | * | 67 | * |
| 68 | * 2. Redistributions in binary form must reproduce the above copyright | 68 | * 2. Redistributions in binary form must reproduce the above copyright |
| 69 | * notice, this list of conditions and the following disclaimer in | 69 | * notice, this list of conditions and the following disclaimer in |
| @@ -117,264 +117,257 @@ | |||
| 117 | #include <openssl/engine.h> | 117 | #include <openssl/engine.h> |
| 118 | #endif | 118 | #endif |
| 119 | 119 | ||
| 120 | void EVP_MD_CTX_init(EVP_MD_CTX *ctx) | 120 | void |
| 121 | { | 121 | EVP_MD_CTX_init(EVP_MD_CTX *ctx) |
| 122 | memset(ctx,'\0',sizeof *ctx); | 122 | { |
| 123 | } | 123 | memset(ctx, '\0', sizeof *ctx); |
| 124 | } | ||
| 124 | 125 | ||
| 125 | EVP_MD_CTX *EVP_MD_CTX_create(void) | 126 | EVP_MD_CTX * |
| 126 | { | 127 | EVP_MD_CTX_create(void) |
| 127 | EVP_MD_CTX *ctx=malloc(sizeof *ctx); | 128 | { |
| 129 | EVP_MD_CTX *ctx = malloc(sizeof *ctx); | ||
| 128 | 130 | ||
| 129 | if (ctx) | 131 | if (ctx) |
| 130 | EVP_MD_CTX_init(ctx); | 132 | EVP_MD_CTX_init(ctx); |
| 131 | 133 | ||
| 132 | return ctx; | 134 | return ctx; |
| 133 | } | 135 | } |
| 134 | 136 | ||
| 135 | int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type) | 137 | int |
| 136 | { | 138 | EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type) |
| 139 | { | ||
| 137 | EVP_MD_CTX_init(ctx); | 140 | EVP_MD_CTX_init(ctx); |
| 138 | return EVP_DigestInit_ex(ctx, type, NULL); | 141 | return EVP_DigestInit_ex(ctx, type, NULL); |
| 139 | } | 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); | ||
| 140 | 148 | ||
| 141 | int EVP_DigestInit_ex(EVP_MD_CTX *ctx, const EVP_MD *type, ENGINE *impl) | ||
| 142 | { | ||
| 143 | EVP_MD_CTX_clear_flags(ctx,EVP_MD_CTX_FLAG_CLEANED); | ||
| 144 | #ifndef OPENSSL_NO_ENGINE | 149 | #ifndef OPENSSL_NO_ENGINE |
| 145 | /* Whether it's nice or not, "Inits" can be used on "Final"'d contexts | 150 | /* Whether it's nice or not, "Inits" can be used on "Final"'d contexts |
| 146 | * so this context may already have an ENGINE! Try to avoid releasing | 151 | * so this context may already have an ENGINE! Try to avoid releasing |
| 147 | * the previous handle, re-querying for an ENGINE, and having a | 152 | * the previous handle, re-querying for an ENGINE, and having a |
| 148 | * reinitialisation, when it may all be unecessary. */ | 153 | * reinitialisation, when it may all be unecessary. */ |
| 149 | if (ctx->engine && ctx->digest && (!type || | 154 | if (ctx->engine && ctx->digest && (!type || |
| 150 | (type && (type->type == ctx->digest->type)))) | 155 | (type && (type->type == ctx->digest->type)))) |
| 151 | goto skip_to_init; | 156 | goto skip_to_init; |
| 152 | if (type) | 157 | if (type) { |
| 153 | { | ||
| 154 | /* Ensure an ENGINE left lying around from last time is cleared | 158 | /* Ensure an ENGINE left lying around from last time is cleared |
| 155 | * (the previous check attempted to avoid this if the same | 159 | * (the previous check attempted to avoid this if the same |
| 156 | * ENGINE and EVP_MD could be used). */ | 160 | * ENGINE and EVP_MD could be used). */ |
| 157 | if(ctx->engine) | 161 | if (ctx->engine) |
| 158 | ENGINE_finish(ctx->engine); | 162 | ENGINE_finish(ctx->engine); |
| 159 | if(impl) | 163 | if (impl) { |
| 160 | { | 164 | if (!ENGINE_init(impl)) { |
| 161 | if (!ENGINE_init(impl)) | 165 | EVPerr(EVP_F_EVP_DIGESTINIT_EX, |
| 162 | { | 166 | EVP_R_INITIALIZATION_ERROR); |
| 163 | EVPerr(EVP_F_EVP_DIGESTINIT_EX,EVP_R_INITIALIZATION_ERROR); | ||
| 164 | return 0; | 167 | return 0; |
| 165 | } | ||
| 166 | } | 168 | } |
| 167 | else | 169 | } else |
| 168 | /* Ask if an ENGINE is reserved for this job */ | 170 | /* Ask if an ENGINE is reserved for this job */ |
| 169 | impl = ENGINE_get_digest_engine(type->type); | 171 | impl = ENGINE_get_digest_engine(type->type); |
| 170 | if(impl) | 172 | if (impl) { |
| 171 | { | ||
| 172 | /* There's an ENGINE for this job ... (apparently) */ | 173 | /* There's an ENGINE for this job ... (apparently) */ |
| 173 | const EVP_MD *d = ENGINE_get_digest(impl, type->type); | 174 | const EVP_MD *d = ENGINE_get_digest(impl, type->type); |
| 174 | if(!d) | 175 | if (!d) { |
| 175 | { | ||
| 176 | /* Same comment from evp_enc.c */ | 176 | /* Same comment from evp_enc.c */ |
| 177 | EVPerr(EVP_F_EVP_DIGESTINIT_EX,EVP_R_INITIALIZATION_ERROR); | 177 | EVPerr(EVP_F_EVP_DIGESTINIT_EX, |
| 178 | EVP_R_INITIALIZATION_ERROR); | ||
| 178 | ENGINE_finish(impl); | 179 | ENGINE_finish(impl); |
| 179 | return 0; | 180 | return 0; |
| 180 | } | 181 | } |
| 181 | /* We'll use the ENGINE's private digest definition */ | 182 | /* We'll use the ENGINE's private digest definition */ |
| 182 | type = d; | 183 | type = d; |
| 183 | /* Store the ENGINE functional reference so we know | 184 | /* Store the ENGINE functional reference so we know |
| 184 | * 'type' came from an ENGINE and we need to release | 185 | * 'type' came from an ENGINE and we need to release |
| 185 | * it when done. */ | 186 | * it when done. */ |
| 186 | ctx->engine = impl; | 187 | ctx->engine = impl; |
| 187 | } | 188 | } else |
| 188 | else | ||
| 189 | ctx->engine = NULL; | 189 | ctx->engine = NULL; |
| 190 | } | 190 | } else if (!ctx->digest) { |
| 191 | else | 191 | EVPerr(EVP_F_EVP_DIGESTINIT_EX, EVP_R_NO_DIGEST_SET); |
| 192 | if(!ctx->digest) | ||
| 193 | { | ||
| 194 | EVPerr(EVP_F_EVP_DIGESTINIT_EX,EVP_R_NO_DIGEST_SET); | ||
| 195 | return 0; | 192 | return 0; |
| 196 | } | 193 | } |
| 197 | #endif | 194 | #endif |
| 198 | if (ctx->digest != type) | 195 | if (ctx->digest != type) { |
| 199 | { | ||
| 200 | if (ctx->digest && ctx->digest->ctx_size) | 196 | if (ctx->digest && ctx->digest->ctx_size) |
| 201 | free(ctx->md_data); | 197 | free(ctx->md_data); |
| 202 | ctx->digest=type; | 198 | ctx->digest = type; |
| 203 | if (!(ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) && type->ctx_size) | 199 | if (!(ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) && type->ctx_size) { |
| 204 | { | ||
| 205 | ctx->update = type->update; | 200 | ctx->update = type->update; |
| 206 | ctx->md_data=malloc(type->ctx_size); | 201 | ctx->md_data = malloc(type->ctx_size); |
| 207 | if (ctx->md_data == NULL) | 202 | if (ctx->md_data == NULL) { |
| 208 | { | ||
| 209 | EVPerr(EVP_F_EVP_DIGESTINIT_EX, | 203 | EVPerr(EVP_F_EVP_DIGESTINIT_EX, |
| 210 | ERR_R_MALLOC_FAILURE); | 204 | ERR_R_MALLOC_FAILURE); |
| 211 | return 0; | 205 | return 0; |
| 212 | } | ||
| 213 | } | 206 | } |
| 214 | } | 207 | } |
| 208 | } | ||
| 215 | #ifndef OPENSSL_NO_ENGINE | 209 | #ifndef OPENSSL_NO_ENGINE |
| 216 | skip_to_init: | 210 | skip_to_init: |
| 217 | #endif | 211 | #endif |
| 218 | if (ctx->pctx) | 212 | if (ctx->pctx) { |
| 219 | { | ||
| 220 | int r; | 213 | int r; |
| 221 | r = EVP_PKEY_CTX_ctrl(ctx->pctx, -1, EVP_PKEY_OP_TYPE_SIG, | 214 | r = EVP_PKEY_CTX_ctrl(ctx->pctx, -1, EVP_PKEY_OP_TYPE_SIG, |
| 222 | EVP_PKEY_CTRL_DIGESTINIT, 0, ctx); | 215 | EVP_PKEY_CTRL_DIGESTINIT, 0, ctx); |
| 223 | if (r <= 0 && (r != -2)) | 216 | if (r <= 0 && (r != -2)) |
| 224 | return 0; | 217 | return 0; |
| 225 | } | 218 | } |
| 226 | if (ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) | 219 | if (ctx->flags & EVP_MD_CTX_FLAG_NO_INIT) |
| 227 | return 1; | 220 | return 1; |
| 228 | return ctx->digest->init(ctx); | 221 | return ctx->digest->init(ctx); |
| 229 | } | 222 | } |
| 230 | 223 | ||
| 231 | int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *data, size_t count) | 224 | int |
| 232 | { | 225 | EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *data, size_t count) |
| 233 | return ctx->update(ctx,data,count); | 226 | { |
| 234 | } | 227 | return ctx->update(ctx, data, count); |
| 228 | } | ||
| 235 | 229 | ||
| 236 | /* The caller can assume that this removes any secret data from the context */ | 230 | /* The caller can assume that this removes any secret data from the context */ |
| 237 | int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) | 231 | int |
| 238 | { | 232 | EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) |
| 233 | { | ||
| 239 | int ret; | 234 | int ret; |
| 235 | |||
| 240 | ret = EVP_DigestFinal_ex(ctx, md, size); | 236 | ret = EVP_DigestFinal_ex(ctx, md, size); |
| 241 | EVP_MD_CTX_cleanup(ctx); | 237 | EVP_MD_CTX_cleanup(ctx); |
| 242 | return ret; | 238 | return ret; |
| 243 | } | 239 | } |
| 244 | 240 | ||
| 245 | /* The caller can assume that this removes any secret data from the context */ | 241 | /* The caller can assume that this removes any secret data from the context */ |
| 246 | int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) | 242 | int |
| 247 | { | 243 | EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) |
| 244 | { | ||
| 248 | int ret; | 245 | int ret; |
| 249 | 246 | ||
| 250 | OPENSSL_assert(ctx->digest->md_size <= EVP_MAX_MD_SIZE); | 247 | OPENSSL_assert(ctx->digest->md_size <= EVP_MAX_MD_SIZE); |
| 251 | ret=ctx->digest->final(ctx,md); | 248 | ret = ctx->digest->final(ctx, md); |
| 252 | if (size != NULL) | 249 | if (size != NULL) |
| 253 | *size=ctx->digest->md_size; | 250 | *size = ctx->digest->md_size; |
| 254 | if (ctx->digest->cleanup) | 251 | if (ctx->digest->cleanup) { |
| 255 | { | ||
| 256 | ctx->digest->cleanup(ctx); | 252 | ctx->digest->cleanup(ctx); |
| 257 | EVP_MD_CTX_set_flags(ctx,EVP_MD_CTX_FLAG_CLEANED); | 253 | EVP_MD_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_CLEANED); |
| 258 | } | ||
| 259 | memset(ctx->md_data,0,ctx->digest->ctx_size); | ||
| 260 | return ret; | ||
| 261 | } | 254 | } |
| 255 | memset(ctx->md_data, 0, ctx->digest->ctx_size); | ||
| 256 | return ret; | ||
| 257 | } | ||
| 262 | 258 | ||
| 263 | int EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in) | 259 | int |
| 264 | { | 260 | EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in) |
| 261 | { | ||
| 265 | EVP_MD_CTX_init(out); | 262 | EVP_MD_CTX_init(out); |
| 266 | return EVP_MD_CTX_copy_ex(out, in); | 263 | return EVP_MD_CTX_copy_ex(out, in); |
| 267 | } | 264 | } |
| 268 | 265 | ||
| 269 | int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in) | 266 | int |
| 270 | { | 267 | EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in) |
| 268 | { | ||
| 271 | unsigned char *tmp_buf; | 269 | unsigned char *tmp_buf; |
| 272 | if ((in == NULL) || (in->digest == NULL)) | 270 | |
| 273 | { | 271 | if ((in == NULL) || (in->digest == NULL)) { |
| 274 | EVPerr(EVP_F_EVP_MD_CTX_COPY_EX,EVP_R_INPUT_NOT_INITIALIZED); | 272 | EVPerr(EVP_F_EVP_MD_CTX_COPY_EX, EVP_R_INPUT_NOT_INITIALIZED); |
| 275 | return 0; | 273 | return 0; |
| 276 | } | 274 | } |
| 277 | #ifndef OPENSSL_NO_ENGINE | 275 | #ifndef OPENSSL_NO_ENGINE |
| 278 | /* Make sure it's safe to copy a digest context using an ENGINE */ | 276 | /* Make sure it's safe to copy a digest context using an ENGINE */ |
| 279 | if (in->engine && !ENGINE_init(in->engine)) | 277 | if (in->engine && !ENGINE_init(in->engine)) { |
| 280 | { | 278 | EVPerr(EVP_F_EVP_MD_CTX_COPY_EX, ERR_R_ENGINE_LIB); |
| 281 | EVPerr(EVP_F_EVP_MD_CTX_COPY_EX,ERR_R_ENGINE_LIB); | ||
| 282 | return 0; | 279 | return 0; |
| 283 | } | 280 | } |
| 284 | #endif | 281 | #endif |
| 285 | 282 | ||
| 286 | if (out->digest == in->digest) | 283 | if (out->digest == in->digest) { |
| 287 | { | ||
| 288 | tmp_buf = out->md_data; | 284 | tmp_buf = out->md_data; |
| 289 | EVP_MD_CTX_set_flags(out,EVP_MD_CTX_FLAG_REUSE); | 285 | EVP_MD_CTX_set_flags(out, EVP_MD_CTX_FLAG_REUSE); |
| 290 | } | 286 | } else |
| 291 | else tmp_buf = NULL; | 287 | tmp_buf = NULL; |
| 292 | EVP_MD_CTX_cleanup(out); | 288 | EVP_MD_CTX_cleanup(out); |
| 293 | memcpy(out,in,sizeof *out); | 289 | memcpy(out, in, sizeof *out); |
| 294 | 290 | ||
| 295 | if (in->md_data && out->digest->ctx_size) | 291 | if (in->md_data && out->digest->ctx_size) { |
| 296 | { | ||
| 297 | if (tmp_buf) | 292 | if (tmp_buf) |
| 298 | out->md_data = tmp_buf; | 293 | out->md_data = tmp_buf; |
| 299 | else | 294 | else { |
| 300 | { | 295 | out->md_data = malloc(out->digest->ctx_size); |
| 301 | out->md_data=malloc(out->digest->ctx_size); | 296 | if (!out->md_data) { |
| 302 | if (!out->md_data) | 297 | EVPerr(EVP_F_EVP_MD_CTX_COPY_EX, |
| 303 | { | 298 | ERR_R_MALLOC_FAILURE); |
| 304 | EVPerr(EVP_F_EVP_MD_CTX_COPY_EX,ERR_R_MALLOC_FAILURE); | ||
| 305 | return 0; | 299 | return 0; |
| 306 | } | ||
| 307 | } | 300 | } |
| 308 | memcpy(out->md_data,in->md_data,out->digest->ctx_size); | ||
| 309 | } | 301 | } |
| 302 | memcpy(out->md_data, in->md_data, out->digest->ctx_size); | ||
| 303 | } | ||
| 310 | 304 | ||
| 311 | out->update = in->update; | 305 | out->update = in->update; |
| 312 | 306 | ||
| 313 | if (in->pctx) | 307 | if (in->pctx) { |
| 314 | { | ||
| 315 | out->pctx = EVP_PKEY_CTX_dup(in->pctx); | 308 | out->pctx = EVP_PKEY_CTX_dup(in->pctx); |
| 316 | if (!out->pctx) | 309 | if (!out->pctx) { |
| 317 | { | ||
| 318 | EVP_MD_CTX_cleanup(out); | 310 | EVP_MD_CTX_cleanup(out); |
| 319 | return 0; | 311 | return 0; |
| 320 | } | ||
| 321 | } | 312 | } |
| 313 | } | ||
| 322 | 314 | ||
| 323 | if (out->digest->copy) | 315 | if (out->digest->copy) |
| 324 | return out->digest->copy(out,in); | 316 | return out->digest->copy(out, in); |
| 325 | 317 | ||
| 326 | return 1; | 318 | return 1; |
| 327 | } | 319 | } |
| 328 | 320 | ||
| 329 | int EVP_Digest(const void *data, size_t count, | 321 | int |
| 330 | unsigned char *md, unsigned int *size, const EVP_MD *type, ENGINE *impl) | 322 | EVP_Digest(const void *data, size_t count, |
| 331 | { | 323 | unsigned char *md, unsigned int *size, const EVP_MD *type, ENGINE *impl) |
| 324 | { | ||
| 332 | EVP_MD_CTX ctx; | 325 | EVP_MD_CTX ctx; |
| 333 | int ret; | 326 | int ret; |
| 334 | 327 | ||
| 335 | EVP_MD_CTX_init(&ctx); | 328 | EVP_MD_CTX_init(&ctx); |
| 336 | EVP_MD_CTX_set_flags(&ctx,EVP_MD_CTX_FLAG_ONESHOT); | 329 | EVP_MD_CTX_set_flags(&ctx, EVP_MD_CTX_FLAG_ONESHOT); |
| 337 | ret=EVP_DigestInit_ex(&ctx, type, impl) | 330 | ret = EVP_DigestInit_ex(&ctx, type, impl) && |
| 338 | && EVP_DigestUpdate(&ctx, data, count) | 331 | EVP_DigestUpdate(&ctx, data, count) && |
| 339 | && EVP_DigestFinal_ex(&ctx, md, size); | 332 | EVP_DigestFinal_ex(&ctx, md, size); |
| 340 | EVP_MD_CTX_cleanup(&ctx); | 333 | EVP_MD_CTX_cleanup(&ctx); |
| 341 | 334 | ||
| 342 | return ret; | 335 | return ret; |
| 343 | } | 336 | } |
| 344 | 337 | ||
| 345 | void EVP_MD_CTX_destroy(EVP_MD_CTX *ctx) | 338 | void |
| 346 | { | 339 | EVP_MD_CTX_destroy(EVP_MD_CTX *ctx) |
| 347 | if (ctx) | 340 | { |
| 348 | { | 341 | if (ctx) { |
| 349 | EVP_MD_CTX_cleanup(ctx); | 342 | EVP_MD_CTX_cleanup(ctx); |
| 350 | free(ctx); | 343 | free(ctx); |
| 351 | } | ||
| 352 | } | 344 | } |
| 345 | } | ||
| 353 | 346 | ||
| 354 | /* This call frees resources associated with the context */ | 347 | /* This call frees resources associated with the context */ |
| 355 | int EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx) | 348 | int |
| 356 | { | 349 | EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx) |
| 350 | { | ||
| 357 | /* Don't assume ctx->md_data was cleaned in EVP_Digest_Final, | 351 | /* Don't assume ctx->md_data was cleaned in EVP_Digest_Final, |
| 358 | * because sometimes only copies of the context are ever finalised. | 352 | * because sometimes only copies of the context are ever finalised. |
| 359 | */ | 353 | */ |
| 360 | if (ctx->digest && ctx->digest->cleanup | 354 | if (ctx->digest && ctx->digest->cleanup && |
| 361 | && !EVP_MD_CTX_test_flags(ctx,EVP_MD_CTX_FLAG_CLEANED)) | 355 | !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_CLEANED)) |
| 362 | ctx->digest->cleanup(ctx); | 356 | ctx->digest->cleanup(ctx); |
| 363 | if (ctx->digest && ctx->digest->ctx_size && ctx->md_data | 357 | if (ctx->digest && ctx->digest->ctx_size && ctx->md_data && |
| 364 | && !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_REUSE)) | 358 | !EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_REUSE)) { |
| 365 | { | 359 | OPENSSL_cleanse(ctx->md_data, ctx->digest->ctx_size); |
| 366 | OPENSSL_cleanse(ctx->md_data,ctx->digest->ctx_size); | ||
| 367 | free(ctx->md_data); | 360 | free(ctx->md_data); |
| 368 | } | 361 | } |
| 369 | if (ctx->pctx) | 362 | if (ctx->pctx) |
| 370 | EVP_PKEY_CTX_free(ctx->pctx); | 363 | EVP_PKEY_CTX_free(ctx->pctx); |
| 371 | #ifndef OPENSSL_NO_ENGINE | 364 | #ifndef OPENSSL_NO_ENGINE |
| 372 | if(ctx->engine) | 365 | if (ctx->engine) |
| 373 | /* The EVP_MD we used belongs to an ENGINE, release the | 366 | /* The EVP_MD we used belongs to an ENGINE, release the |
| 374 | * functional reference we held for this reason. */ | 367 | * functional reference we held for this reason. */ |
| 375 | ENGINE_finish(ctx->engine); | 368 | ENGINE_finish(ctx->engine); |
| 376 | #endif | 369 | #endif |
| 377 | memset(ctx,'\0',sizeof *ctx); | 370 | memset(ctx, '\0', sizeof *ctx); |
| 378 | 371 | ||
| 379 | return 1; | 372 | return 1; |
| 380 | } | 373 | } |
