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d02b48c6 | 1 | /* crypto/evp/p_lib.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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 | #include <stdio.h> | |
60 | #include "cryptlib.h" | |
ec577822 BM |
61 | #include <openssl/objects.h> |
62 | #include <openssl/evp.h> | |
63 | #include <openssl/asn1_mac.h> | |
64 | #include <openssl/x509.h> | |
d02b48c6 | 65 | |
d02b48c6 | 66 | static void EVP_PKEY_free_it(EVP_PKEY *x); |
bb2297a4 | 67 | |
6b691a5c | 68 | int EVP_PKEY_bits(EVP_PKEY *pkey) |
58964a49 | 69 | { |
cf1b7d96 | 70 | #ifndef OPENSSL_NO_RSA |
58964a49 RE |
71 | if (pkey->type == EVP_PKEY_RSA) |
72 | return(BN_num_bits(pkey->pkey.rsa->n)); | |
73 | else | |
74 | #endif | |
cf1b7d96 | 75 | #ifndef OPENSSL_NO_DSA |
58964a49 RE |
76 | if (pkey->type == EVP_PKEY_DSA) |
77 | return(BN_num_bits(pkey->pkey.dsa->p)); | |
78 | #endif | |
79 | return(0); | |
80 | } | |
81 | ||
6b691a5c | 82 | int EVP_PKEY_size(EVP_PKEY *pkey) |
d02b48c6 | 83 | { |
cf1b7d96 | 84 | #ifndef OPENSSL_NO_RSA |
d02b48c6 RE |
85 | if (pkey->type == EVP_PKEY_RSA) |
86 | return(RSA_size(pkey->pkey.rsa)); | |
87 | else | |
88 | #endif | |
cf1b7d96 | 89 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
90 | if (pkey->type == EVP_PKEY_DSA) |
91 | return(DSA_size(pkey->pkey.dsa)); | |
92 | #endif | |
93 | return(0); | |
94 | } | |
95 | ||
6b691a5c | 96 | int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode) |
d02b48c6 | 97 | { |
cf1b7d96 | 98 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
99 | if (pkey->type == EVP_PKEY_DSA) |
100 | { | |
bc8a9f1f | 101 | int ret=pkey->save_parameters; |
d02b48c6 RE |
102 | |
103 | if (mode >= 0) | |
104 | pkey->save_parameters=mode; | |
105 | return(ret); | |
106 | } | |
107 | #endif | |
108 | return(0); | |
109 | } | |
110 | ||
6b691a5c | 111 | int EVP_PKEY_copy_parameters(EVP_PKEY *to, EVP_PKEY *from) |
d02b48c6 RE |
112 | { |
113 | if (to->type != from->type) | |
114 | { | |
115 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES); | |
58964a49 | 116 | goto err; |
d02b48c6 RE |
117 | } |
118 | ||
119 | if (EVP_PKEY_missing_parameters(from)) | |
120 | { | |
657e60fa | 121 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS); |
58964a49 | 122 | goto err; |
d02b48c6 | 123 | } |
cf1b7d96 | 124 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
125 | if (to->type == EVP_PKEY_DSA) |
126 | { | |
127 | BIGNUM *a; | |
128 | ||
129 | if ((a=BN_dup(from->pkey.dsa->p)) == NULL) goto err; | |
130 | if (to->pkey.dsa->p != NULL) BN_free(to->pkey.dsa->p); | |
131 | to->pkey.dsa->p=a; | |
132 | ||
133 | if ((a=BN_dup(from->pkey.dsa->q)) == NULL) goto err; | |
134 | if (to->pkey.dsa->q != NULL) BN_free(to->pkey.dsa->q); | |
135 | to->pkey.dsa->q=a; | |
136 | ||
137 | if ((a=BN_dup(from->pkey.dsa->g)) == NULL) goto err; | |
138 | if (to->pkey.dsa->g != NULL) BN_free(to->pkey.dsa->g); | |
139 | to->pkey.dsa->g=a; | |
140 | } | |
141 | #endif | |
142 | return(1); | |
143 | err: | |
144 | return(0); | |
145 | } | |
146 | ||
6b691a5c | 147 | int EVP_PKEY_missing_parameters(EVP_PKEY *pkey) |
d02b48c6 | 148 | { |
cf1b7d96 | 149 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
150 | if (pkey->type == EVP_PKEY_DSA) |
151 | { | |
152 | DSA *dsa; | |
153 | ||
154 | dsa=pkey->pkey.dsa; | |
155 | if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL)) | |
156 | return(1); | |
157 | } | |
158 | #endif | |
159 | return(0); | |
160 | } | |
161 | ||
6b691a5c | 162 | int EVP_PKEY_cmp_parameters(EVP_PKEY *a, EVP_PKEY *b) |
58964a49 | 163 | { |
cf1b7d96 | 164 | #ifndef OPENSSL_NO_DSA |
58964a49 RE |
165 | if ((a->type == EVP_PKEY_DSA) && (b->type == EVP_PKEY_DSA)) |
166 | { | |
167 | if ( BN_cmp(a->pkey.dsa->p,b->pkey.dsa->p) || | |
168 | BN_cmp(a->pkey.dsa->q,b->pkey.dsa->q) || | |
169 | BN_cmp(a->pkey.dsa->g,b->pkey.dsa->g)) | |
170 | return(0); | |
171 | else | |
172 | return(1); | |
173 | } | |
174 | #endif | |
175 | return(-1); | |
176 | } | |
177 | ||
6b691a5c | 178 | EVP_PKEY *EVP_PKEY_new(void) |
d02b48c6 RE |
179 | { |
180 | EVP_PKEY *ret; | |
181 | ||
26a3a48d | 182 | ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY)); |
d02b48c6 RE |
183 | if (ret == NULL) |
184 | { | |
185 | EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE); | |
186 | return(NULL); | |
187 | } | |
188 | ret->type=EVP_PKEY_NONE; | |
189 | ret->references=1; | |
190 | ret->pkey.ptr=NULL; | |
191 | ret->attributes=NULL; | |
192 | ret->save_parameters=1; | |
193 | return(ret); | |
194 | } | |
195 | ||
6b691a5c | 196 | int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key) |
d02b48c6 RE |
197 | { |
198 | if (pkey == NULL) return(0); | |
199 | if (pkey->pkey.ptr != NULL) | |
200 | EVP_PKEY_free_it(pkey); | |
201 | pkey->type=EVP_PKEY_type(type); | |
202 | pkey->save_type=type; | |
203 | pkey->pkey.ptr=key; | |
7f5b6f0f | 204 | return(key != NULL); |
d02b48c6 RE |
205 | } |
206 | ||
cf1b7d96 | 207 | #ifndef OPENSSL_NO_RSA |
c7cb16a8 | 208 | int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) |
52664f50 | 209 | { |
6d3724d3 DSH |
210 | int ret = EVP_PKEY_assign_RSA(pkey, key); |
211 | if(ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_RSA); | |
212 | return ret; | |
52664f50 DSH |
213 | } |
214 | ||
c7cb16a8 | 215 | RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) |
f769ce3e DSH |
216 | { |
217 | if(pkey->type != EVP_PKEY_RSA) { | |
c7cb16a8 | 218 | EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY); |
f769ce3e DSH |
219 | return NULL; |
220 | } | |
221 | CRYPTO_add(&pkey->pkey.rsa->references, 1, CRYPTO_LOCK_RSA); | |
222 | return pkey->pkey.rsa; | |
223 | } | |
224 | #endif | |
225 | ||
cf1b7d96 | 226 | #ifndef OPENSSL_NO_DSA |
c7cb16a8 | 227 | int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) |
52664f50 | 228 | { |
6d3724d3 DSH |
229 | int ret = EVP_PKEY_assign_DSA(pkey, key); |
230 | if(ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_DSA); | |
231 | return ret; | |
52664f50 DSH |
232 | } |
233 | ||
c7cb16a8 | 234 | DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) |
f769ce3e DSH |
235 | { |
236 | if(pkey->type != EVP_PKEY_DSA) { | |
c7cb16a8 | 237 | EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY); |
f769ce3e DSH |
238 | return NULL; |
239 | } | |
52664f50 | 240 | CRYPTO_add(&pkey->pkey.dsa->references, 1, CRYPTO_LOCK_DSA); |
f769ce3e DSH |
241 | return pkey->pkey.dsa; |
242 | } | |
243 | #endif | |
244 | ||
cf1b7d96 | 245 | #ifndef OPENSSL_NO_DH |
52664f50 | 246 | |
c7cb16a8 | 247 | int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) |
52664f50 | 248 | { |
6d3724d3 DSH |
249 | int ret = EVP_PKEY_assign_DH(pkey, key); |
250 | if(ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_DH); | |
251 | return ret; | |
52664f50 DSH |
252 | } |
253 | ||
c7cb16a8 | 254 | DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) |
f769ce3e DSH |
255 | { |
256 | if(pkey->type != EVP_PKEY_DH) { | |
c7cb16a8 | 257 | EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY); |
f769ce3e DSH |
258 | return NULL; |
259 | } | |
260 | CRYPTO_add(&pkey->pkey.dh->references, 1, CRYPTO_LOCK_DH); | |
261 | return pkey->pkey.dh; | |
262 | } | |
263 | #endif | |
264 | ||
6b691a5c | 265 | int EVP_PKEY_type(int type) |
d02b48c6 RE |
266 | { |
267 | switch (type) | |
268 | { | |
269 | case EVP_PKEY_RSA: | |
270 | case EVP_PKEY_RSA2: | |
271 | return(EVP_PKEY_RSA); | |
272 | case EVP_PKEY_DSA: | |
58964a49 | 273 | case EVP_PKEY_DSA1: |
d02b48c6 RE |
274 | case EVP_PKEY_DSA2: |
275 | case EVP_PKEY_DSA3: | |
58964a49 | 276 | case EVP_PKEY_DSA4: |
d02b48c6 RE |
277 | return(EVP_PKEY_DSA); |
278 | case EVP_PKEY_DH: | |
279 | return(EVP_PKEY_DH); | |
280 | default: | |
281 | return(NID_undef); | |
282 | } | |
283 | } | |
284 | ||
6b691a5c | 285 | void EVP_PKEY_free(EVP_PKEY *x) |
d02b48c6 RE |
286 | { |
287 | int i; | |
288 | ||
289 | if (x == NULL) return; | |
290 | ||
291 | i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY); | |
58964a49 RE |
292 | #ifdef REF_PRINT |
293 | REF_PRINT("EVP_PKEY",x); | |
294 | #endif | |
d02b48c6 RE |
295 | if (i > 0) return; |
296 | #ifdef REF_CHECK | |
297 | if (i < 0) | |
298 | { | |
299 | fprintf(stderr,"EVP_PKEY_free, bad reference count\n"); | |
300 | abort(); | |
301 | } | |
302 | #endif | |
303 | EVP_PKEY_free_it(x); | |
26a3a48d | 304 | OPENSSL_free(x); |
d02b48c6 RE |
305 | } |
306 | ||
6b691a5c | 307 | static void EVP_PKEY_free_it(EVP_PKEY *x) |
d02b48c6 RE |
308 | { |
309 | switch (x->type) | |
310 | { | |
cf1b7d96 | 311 | #ifndef OPENSSL_NO_RSA |
d02b48c6 RE |
312 | case EVP_PKEY_RSA: |
313 | case EVP_PKEY_RSA2: | |
314 | RSA_free(x->pkey.rsa); | |
315 | break; | |
316 | #endif | |
cf1b7d96 | 317 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
318 | case EVP_PKEY_DSA: |
319 | case EVP_PKEY_DSA2: | |
320 | case EVP_PKEY_DSA3: | |
58964a49 | 321 | case EVP_PKEY_DSA4: |
d02b48c6 RE |
322 | DSA_free(x->pkey.dsa); |
323 | break; | |
324 | #endif | |
cf1b7d96 | 325 | #ifndef OPENSSL_NO_DH |
d02b48c6 RE |
326 | case EVP_PKEY_DH: |
327 | DH_free(x->pkey.dh); | |
328 | break; | |
329 | #endif | |
330 | } | |
331 | } | |
332 |