summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/evp/digest.c
diff options
context:
space:
mode:
authorjsing <>2014-05-03 15:50:24 +0000
committerjsing <>2014-05-03 15:50:24 +0000
commitd7f470a7ef3c6db76e177079e2cbfe887f2861b6 (patch)
tree286aeaeed949a347596bf9f8e18012b9982760a9 /src/lib/libcrypto/evp/digest.c
parentc068ce427d4525ce31189b2feb96a7ef18568758 (diff)
downloadopenbsd-d7f470a7ef3c6db76e177079e2cbfe887f2861b6.tar.gz
openbsd-d7f470a7ef3c6db76e177079e2cbfe887f2861b6.tar.bz2
openbsd-d7f470a7ef3c6db76e177079e2cbfe887f2861b6.zip
KNF.
Diffstat (limited to 'src/lib/libcrypto/evp/digest.c')
-rw-r--r--src/lib/libcrypto/evp/digest.c273
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
120void EVP_MD_CTX_init(EVP_MD_CTX *ctx) 120void
121 { 121EVP_MD_CTX_init(EVP_MD_CTX *ctx)
122 memset(ctx,'\0',sizeof *ctx); 122{
123 } 123 memset(ctx, '\0', sizeof *ctx);
124}
124 125
125EVP_MD_CTX *EVP_MD_CTX_create(void) 126EVP_MD_CTX *
126 { 127EVP_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
135int EVP_DigestInit(EVP_MD_CTX *ctx, const EVP_MD *type) 137int
136 { 138EVP_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
144int
145EVP_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
141int 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
216skip_to_init: 210skip_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
231int EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *data, size_t count) 224int
232 { 225EVP_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 */
237int EVP_DigestFinal(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) 231int
238 { 232EVP_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 */
246int EVP_DigestFinal_ex(EVP_MD_CTX *ctx, unsigned char *md, unsigned int *size) 242int
247 { 243EVP_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
263int EVP_MD_CTX_copy(EVP_MD_CTX *out, const EVP_MD_CTX *in) 259int
264 { 260EVP_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
269int EVP_MD_CTX_copy_ex(EVP_MD_CTX *out, const EVP_MD_CTX *in) 266int
270 { 267EVP_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
329int EVP_Digest(const void *data, size_t count, 321int
330 unsigned char *md, unsigned int *size, const EVP_MD *type, ENGINE *impl) 322EVP_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
345void EVP_MD_CTX_destroy(EVP_MD_CTX *ctx) 338void
346 { 339EVP_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 */
355int EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx) 348int
356 { 349EVP_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}