1 /* crypto/evp/p_lib.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
61 #include <openssl/bn.h>
62 #include <openssl/err.h>
63 #include <openssl/objects.h>
64 #include <openssl/evp.h>
65 #include <openssl/asn1_mac.h>
66 #include <openssl/x509.h>
67 #include <openssl/rsa.h>
68 #include <openssl/dsa.h>
69 #include <openssl/dh.h>
71 static void EVP_PKEY_free_it(EVP_PKEY *x);
73 int EVP_PKEY_bits(EVP_PKEY *pkey)
77 #ifndef OPENSSL_NO_RSA
78 else if (pkey->type == EVP_PKEY_RSA)
79 return(BN_num_bits(pkey->pkey.rsa->n));
81 #ifndef OPENSSL_NO_DSA
82 else if (pkey->type == EVP_PKEY_DSA)
83 return(BN_num_bits(pkey->pkey.dsa->p));
86 else if (pkey->type == EVP_PKEY_EC)
88 BIGNUM *order = BN_new();
96 if (!EC_GROUP_get_order(pkey->pkey.eckey->group, order, NULL))
102 ret = BN_num_bits(order);
110 int EVP_PKEY_size(EVP_PKEY *pkey)
114 #ifndef OPENSSL_NO_RSA
115 if (pkey->type == EVP_PKEY_RSA)
116 return(RSA_size(pkey->pkey.rsa));
119 #ifndef OPENSSL_NO_DSA
120 if (pkey->type == EVP_PKEY_DSA)
121 return(DSA_size(pkey->pkey.dsa));
123 #ifndef OPENSSL_NO_ECDSA
124 if (pkey->type == EVP_PKEY_EC)
125 return(ECDSA_size(pkey->pkey.eckey));
131 int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
133 #ifndef OPENSSL_NO_DSA
134 if (pkey->type == EVP_PKEY_DSA)
136 int ret=pkey->save_parameters;
139 pkey->save_parameters=mode;
143 #ifndef OPENSSL_NO_EC
144 if (pkey->type == EVP_PKEY_EC)
146 int ret = pkey->save_parameters;
149 pkey->save_parameters = mode;
156 int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
158 if (to->type != from->type)
160 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES);
164 if (EVP_PKEY_missing_parameters(from))
166 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS);
169 #ifndef OPENSSL_NO_DSA
170 if (to->type == EVP_PKEY_DSA)
174 if ((a=BN_dup(from->pkey.dsa->p)) == NULL) goto err;
175 if (to->pkey.dsa->p != NULL) BN_free(to->pkey.dsa->p);
178 if ((a=BN_dup(from->pkey.dsa->q)) == NULL) goto err;
179 if (to->pkey.dsa->q != NULL) BN_free(to->pkey.dsa->q);
182 if ((a=BN_dup(from->pkey.dsa->g)) == NULL) goto err;
183 if (to->pkey.dsa->g != NULL) BN_free(to->pkey.dsa->g);
187 #ifndef OPENSSL_NO_EC
188 if (to->type == EVP_PKEY_EC)
190 if (to->pkey.eckey->group != NULL)
191 EC_GROUP_free(to->pkey.eckey->group);
192 if ((to->pkey.eckey->group = EC_GROUP_new(
193 EC_GROUP_method_of(from->pkey.eckey->group))) == NULL)
195 if (!EC_GROUP_copy(to->pkey.eckey->group,
196 from->pkey.eckey->group)) goto err;
204 int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
206 #ifndef OPENSSL_NO_DSA
207 if (pkey->type == EVP_PKEY_DSA)
212 if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))
216 #ifndef OPENSSL_NO_EC
217 if (pkey->type == EVP_PKEY_EC)
219 if (pkey->pkey.eckey->group == NULL)
227 int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
229 #ifndef OPENSSL_NO_DSA
230 if ((a->type == EVP_PKEY_DSA) && (b->type == EVP_PKEY_DSA))
232 if ( BN_cmp(a->pkey.dsa->p,b->pkey.dsa->p) ||
233 BN_cmp(a->pkey.dsa->q,b->pkey.dsa->q) ||
234 BN_cmp(a->pkey.dsa->g,b->pkey.dsa->g))
240 #ifndef OPENSSL_NO_EC
241 if (a->type == EVP_PKEY_EC && b->type == EVP_PKEY_EC)
243 if (EC_GROUP_cmp(a->pkey.eckey->group, b->pkey.eckey->group, NULL))
252 int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
254 if (a->type != b->type)
257 if (EVP_PKEY_cmp_parameters(a, b) == 0)
262 #ifndef OPENSSL_NO_RSA
264 if (BN_cmp(b->pkey.rsa->n,a->pkey.rsa->n) != 0
265 || BN_cmp(b->pkey.rsa->e,a->pkey.rsa->e) != 0)
269 #ifndef OPENSSL_NO_DSA
271 if (BN_cmp(b->pkey.dsa->pub_key,a->pkey.dsa->pub_key) != 0)
275 #ifndef OPENSSL_NO_EC
278 int r = EC_POINT_cmp(b->pkey.eckey->group,
279 b->pkey.eckey->pub_key,a->pkey.eckey->pub_key,NULL);
290 #ifndef OPENSSL_NO_DH
301 EVP_PKEY *EVP_PKEY_new(void)
305 ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY));
308 EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE);
311 ret->type=EVP_PKEY_NONE;
314 ret->attributes=NULL;
315 ret->save_parameters=1;
319 int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key)
321 if (pkey == NULL) return(0);
322 if (pkey->pkey.ptr != NULL)
323 EVP_PKEY_free_it(pkey);
324 pkey->type=EVP_PKEY_type(type);
325 pkey->save_type=type;
330 #ifndef OPENSSL_NO_RSA
331 int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key)
333 int ret = EVP_PKEY_assign_RSA(pkey, key);
339 RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey)
341 if(pkey->type != EVP_PKEY_RSA) {
342 EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
345 RSA_up_ref(pkey->pkey.rsa);
346 return pkey->pkey.rsa;
350 #ifndef OPENSSL_NO_DSA
351 int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key)
353 int ret = EVP_PKEY_assign_DSA(pkey, key);
359 DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
361 if(pkey->type != EVP_PKEY_DSA) {
362 EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
365 DSA_up_ref(pkey->pkey.dsa);
366 return pkey->pkey.dsa;
370 #ifndef OPENSSL_NO_EC
372 int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key)
374 int ret = EVP_PKEY_assign_EC_KEY(pkey,key);
375 if (ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_EC);
379 EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey)
381 if (pkey->type != EVP_PKEY_EC)
383 EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
386 CRYPTO_add(&pkey->pkey.eckey->references, 1, CRYPTO_LOCK_EC);
387 return pkey->pkey.eckey;
392 #ifndef OPENSSL_NO_DH
394 int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key)
396 int ret = EVP_PKEY_assign_DH(pkey, key);
402 DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
404 if(pkey->type != EVP_PKEY_DH) {
405 EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY);
408 DH_up_ref(pkey->pkey.dh);
409 return pkey->pkey.dh;
413 int EVP_PKEY_type(int type)
419 return(EVP_PKEY_RSA);
425 return(EVP_PKEY_DSA);
435 void EVP_PKEY_free(EVP_PKEY *x)
439 if (x == NULL) return;
441 i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);
443 REF_PRINT("EVP_PKEY",x);
449 fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
457 static void EVP_PKEY_free_it(EVP_PKEY *x)
461 #ifndef OPENSSL_NO_RSA
464 RSA_free(x->pkey.rsa);
467 #ifndef OPENSSL_NO_DSA
472 DSA_free(x->pkey.dsa);
475 #ifndef OPENSSL_NO_EC
477 EC_KEY_free(x->pkey.eckey);
480 #ifndef OPENSSL_NO_DH