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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 | { |
92dad6cc BL |
84 | if (pkey == NULL) |
85 | return(0); | |
93d9121a | 86 | #ifndef OPENSSL_NO_RSA |
d02b48c6 RE |
87 | if (pkey->type == EVP_PKEY_RSA) |
88 | return(RSA_size(pkey->pkey.rsa)); | |
89 | else | |
90 | #endif | |
cf1b7d96 | 91 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
92 | if (pkey->type == EVP_PKEY_DSA) |
93 | return(DSA_size(pkey->pkey.dsa)); | |
94 | #endif | |
95 | return(0); | |
96 | } | |
97 | ||
6b691a5c | 98 | int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode) |
d02b48c6 | 99 | { |
cf1b7d96 | 100 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
101 | if (pkey->type == EVP_PKEY_DSA) |
102 | { | |
bc8a9f1f | 103 | int ret=pkey->save_parameters; |
d02b48c6 RE |
104 | |
105 | if (mode >= 0) | |
106 | pkey->save_parameters=mode; | |
107 | return(ret); | |
108 | } | |
109 | #endif | |
110 | return(0); | |
111 | } | |
112 | ||
6b691a5c | 113 | int EVP_PKEY_copy_parameters(EVP_PKEY *to, EVP_PKEY *from) |
d02b48c6 RE |
114 | { |
115 | if (to->type != from->type) | |
116 | { | |
117 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES); | |
58964a49 | 118 | goto err; |
d02b48c6 RE |
119 | } |
120 | ||
121 | if (EVP_PKEY_missing_parameters(from)) | |
122 | { | |
657e60fa | 123 | EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS); |
58964a49 | 124 | goto err; |
d02b48c6 | 125 | } |
cf1b7d96 | 126 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
127 | if (to->type == EVP_PKEY_DSA) |
128 | { | |
129 | BIGNUM *a; | |
130 | ||
131 | if ((a=BN_dup(from->pkey.dsa->p)) == NULL) goto err; | |
132 | if (to->pkey.dsa->p != NULL) BN_free(to->pkey.dsa->p); | |
133 | to->pkey.dsa->p=a; | |
134 | ||
135 | if ((a=BN_dup(from->pkey.dsa->q)) == NULL) goto err; | |
136 | if (to->pkey.dsa->q != NULL) BN_free(to->pkey.dsa->q); | |
137 | to->pkey.dsa->q=a; | |
138 | ||
139 | if ((a=BN_dup(from->pkey.dsa->g)) == NULL) goto err; | |
140 | if (to->pkey.dsa->g != NULL) BN_free(to->pkey.dsa->g); | |
141 | to->pkey.dsa->g=a; | |
142 | } | |
143 | #endif | |
144 | return(1); | |
145 | err: | |
146 | return(0); | |
147 | } | |
148 | ||
6b691a5c | 149 | int EVP_PKEY_missing_parameters(EVP_PKEY *pkey) |
d02b48c6 | 150 | { |
cf1b7d96 | 151 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
152 | if (pkey->type == EVP_PKEY_DSA) |
153 | { | |
154 | DSA *dsa; | |
155 | ||
156 | dsa=pkey->pkey.dsa; | |
157 | if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL)) | |
158 | return(1); | |
159 | } | |
160 | #endif | |
161 | return(0); | |
162 | } | |
163 | ||
6b691a5c | 164 | int EVP_PKEY_cmp_parameters(EVP_PKEY *a, EVP_PKEY *b) |
58964a49 | 165 | { |
cf1b7d96 | 166 | #ifndef OPENSSL_NO_DSA |
58964a49 RE |
167 | if ((a->type == EVP_PKEY_DSA) && (b->type == EVP_PKEY_DSA)) |
168 | { | |
169 | if ( BN_cmp(a->pkey.dsa->p,b->pkey.dsa->p) || | |
170 | BN_cmp(a->pkey.dsa->q,b->pkey.dsa->q) || | |
171 | BN_cmp(a->pkey.dsa->g,b->pkey.dsa->g)) | |
172 | return(0); | |
173 | else | |
174 | return(1); | |
175 | } | |
176 | #endif | |
177 | return(-1); | |
178 | } | |
179 | ||
6b691a5c | 180 | EVP_PKEY *EVP_PKEY_new(void) |
d02b48c6 RE |
181 | { |
182 | EVP_PKEY *ret; | |
183 | ||
26a3a48d | 184 | ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY)); |
d02b48c6 RE |
185 | if (ret == NULL) |
186 | { | |
187 | EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE); | |
188 | return(NULL); | |
189 | } | |
190 | ret->type=EVP_PKEY_NONE; | |
191 | ret->references=1; | |
192 | ret->pkey.ptr=NULL; | |
193 | ret->attributes=NULL; | |
194 | ret->save_parameters=1; | |
195 | return(ret); | |
196 | } | |
197 | ||
6b691a5c | 198 | int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key) |
d02b48c6 RE |
199 | { |
200 | if (pkey == NULL) return(0); | |
201 | if (pkey->pkey.ptr != NULL) | |
202 | EVP_PKEY_free_it(pkey); | |
203 | pkey->type=EVP_PKEY_type(type); | |
204 | pkey->save_type=type; | |
205 | pkey->pkey.ptr=key; | |
7f5b6f0f | 206 | return(key != NULL); |
d02b48c6 RE |
207 | } |
208 | ||
cf1b7d96 | 209 | #ifndef OPENSSL_NO_RSA |
c7cb16a8 | 210 | int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key) |
52664f50 | 211 | { |
6d3724d3 DSH |
212 | int ret = EVP_PKEY_assign_RSA(pkey, key); |
213 | if(ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_RSA); | |
214 | return ret; | |
52664f50 DSH |
215 | } |
216 | ||
c7cb16a8 | 217 | RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey) |
f769ce3e DSH |
218 | { |
219 | if(pkey->type != EVP_PKEY_RSA) { | |
c7cb16a8 | 220 | EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY); |
f769ce3e DSH |
221 | return NULL; |
222 | } | |
223 | CRYPTO_add(&pkey->pkey.rsa->references, 1, CRYPTO_LOCK_RSA); | |
224 | return pkey->pkey.rsa; | |
225 | } | |
226 | #endif | |
227 | ||
cf1b7d96 | 228 | #ifndef OPENSSL_NO_DSA |
c7cb16a8 | 229 | int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key) |
52664f50 | 230 | { |
6d3724d3 DSH |
231 | int ret = EVP_PKEY_assign_DSA(pkey, key); |
232 | if(ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_DSA); | |
233 | return ret; | |
52664f50 DSH |
234 | } |
235 | ||
c7cb16a8 | 236 | DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey) |
f769ce3e DSH |
237 | { |
238 | if(pkey->type != EVP_PKEY_DSA) { | |
c7cb16a8 | 239 | EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY); |
f769ce3e DSH |
240 | return NULL; |
241 | } | |
52664f50 | 242 | CRYPTO_add(&pkey->pkey.dsa->references, 1, CRYPTO_LOCK_DSA); |
f769ce3e DSH |
243 | return pkey->pkey.dsa; |
244 | } | |
245 | #endif | |
246 | ||
cf1b7d96 | 247 | #ifndef OPENSSL_NO_DH |
52664f50 | 248 | |
c7cb16a8 | 249 | int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key) |
52664f50 | 250 | { |
6d3724d3 DSH |
251 | int ret = EVP_PKEY_assign_DH(pkey, key); |
252 | if(ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_DH); | |
253 | return ret; | |
52664f50 DSH |
254 | } |
255 | ||
c7cb16a8 | 256 | DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey) |
f769ce3e DSH |
257 | { |
258 | if(pkey->type != EVP_PKEY_DH) { | |
c7cb16a8 | 259 | EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY); |
f769ce3e DSH |
260 | return NULL; |
261 | } | |
262 | CRYPTO_add(&pkey->pkey.dh->references, 1, CRYPTO_LOCK_DH); | |
263 | return pkey->pkey.dh; | |
264 | } | |
265 | #endif | |
266 | ||
6b691a5c | 267 | int EVP_PKEY_type(int type) |
d02b48c6 RE |
268 | { |
269 | switch (type) | |
270 | { | |
271 | case EVP_PKEY_RSA: | |
272 | case EVP_PKEY_RSA2: | |
273 | return(EVP_PKEY_RSA); | |
274 | case EVP_PKEY_DSA: | |
58964a49 | 275 | case EVP_PKEY_DSA1: |
d02b48c6 RE |
276 | case EVP_PKEY_DSA2: |
277 | case EVP_PKEY_DSA3: | |
58964a49 | 278 | case EVP_PKEY_DSA4: |
d02b48c6 RE |
279 | return(EVP_PKEY_DSA); |
280 | case EVP_PKEY_DH: | |
281 | return(EVP_PKEY_DH); | |
282 | default: | |
283 | return(NID_undef); | |
284 | } | |
285 | } | |
286 | ||
6b691a5c | 287 | void EVP_PKEY_free(EVP_PKEY *x) |
d02b48c6 RE |
288 | { |
289 | int i; | |
290 | ||
291 | if (x == NULL) return; | |
292 | ||
293 | i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY); | |
58964a49 RE |
294 | #ifdef REF_PRINT |
295 | REF_PRINT("EVP_PKEY",x); | |
296 | #endif | |
d02b48c6 RE |
297 | if (i > 0) return; |
298 | #ifdef REF_CHECK | |
299 | if (i < 0) | |
300 | { | |
301 | fprintf(stderr,"EVP_PKEY_free, bad reference count\n"); | |
302 | abort(); | |
303 | } | |
304 | #endif | |
305 | EVP_PKEY_free_it(x); | |
26a3a48d | 306 | OPENSSL_free(x); |
d02b48c6 RE |
307 | } |
308 | ||
6b691a5c | 309 | static void EVP_PKEY_free_it(EVP_PKEY *x) |
d02b48c6 RE |
310 | { |
311 | switch (x->type) | |
312 | { | |
cf1b7d96 | 313 | #ifndef OPENSSL_NO_RSA |
d02b48c6 RE |
314 | case EVP_PKEY_RSA: |
315 | case EVP_PKEY_RSA2: | |
316 | RSA_free(x->pkey.rsa); | |
317 | break; | |
318 | #endif | |
cf1b7d96 | 319 | #ifndef OPENSSL_NO_DSA |
d02b48c6 RE |
320 | case EVP_PKEY_DSA: |
321 | case EVP_PKEY_DSA2: | |
322 | case EVP_PKEY_DSA3: | |
58964a49 | 323 | case EVP_PKEY_DSA4: |
d02b48c6 RE |
324 | DSA_free(x->pkey.dsa); |
325 | break; | |
326 | #endif | |
cf1b7d96 | 327 | #ifndef OPENSSL_NO_DH |
d02b48c6 RE |
328 | case EVP_PKEY_DH: |
329 | DH_free(x->pkey.dh); | |
330 | break; | |
331 | #endif | |
332 | } | |
333 | } | |
334 |