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/objects.h>
62 #include <openssl/evp.h>
63 #include <openssl/asn1_mac.h>
64 #include <openssl/x509.h>
66 static void EVP_PKEY_free_it(EVP_PKEY *x);
67 int EVP_PKEY_bits(EVP_PKEY *pkey)
69 #ifndef OPENSSL_NO_RSA
70 if (pkey->type == EVP_PKEY_RSA)
71 return(BN_num_bits(pkey->pkey.rsa->n));
74 #ifndef OPENSSL_NO_DSA
75 if (pkey->type == EVP_PKEY_DSA)
76 return(BN_num_bits(pkey->pkey.dsa->p));
81 int EVP_PKEY_size(EVP_PKEY *pkey)
85 #ifndef OPENSSL_NO_RSA
86 if (pkey->type == EVP_PKEY_RSA)
87 return(RSA_size(pkey->pkey.rsa));
90 #ifndef OPENSSL_NO_DSA
91 if (pkey->type == EVP_PKEY_DSA)
92 return(DSA_size(pkey->pkey.dsa));
97 int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
99 #ifndef OPENSSL_NO_DSA
100 if (pkey->type == EVP_PKEY_DSA)
102 int ret=pkey->save_parameters;
105 pkey->save_parameters=mode;
112 int EVP_PKEY_copy_parameters(EVP_PKEY *to, EVP_PKEY *from)
114 if (to->type != from->type)
116 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES);
120 if (EVP_PKEY_missing_parameters(from))
122 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS);
125 #ifndef OPENSSL_NO_DSA
126 if (to->type == EVP_PKEY_DSA)
130 if ((a=BN_dup(from->pkey.dsa->p)) == NULL) goto err;
131 if (to->pkey.dsa->p != NULL) BN_free(to->pkey.dsa->p);
134 if ((a=BN_dup(from->pkey.dsa->q)) == NULL) goto err;
135 if (to->pkey.dsa->q != NULL) BN_free(to->pkey.dsa->q);
138 if ((a=BN_dup(from->pkey.dsa->g)) == NULL) goto err;
139 if (to->pkey.dsa->g != NULL) BN_free(to->pkey.dsa->g);
148 int EVP_PKEY_missing_parameters(EVP_PKEY *pkey)
150 #ifndef OPENSSL_NO_DSA
151 if (pkey->type == EVP_PKEY_DSA)
156 if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))
163 int EVP_PKEY_cmp_parameters(EVP_PKEY *a, EVP_PKEY *b)
165 #ifndef OPENSSL_NO_DSA
166 if ((a->type == EVP_PKEY_DSA) && (b->type == EVP_PKEY_DSA))
168 if ( BN_cmp(a->pkey.dsa->p,b->pkey.dsa->p) ||
169 BN_cmp(a->pkey.dsa->q,b->pkey.dsa->q) ||
170 BN_cmp(a->pkey.dsa->g,b->pkey.dsa->g))
179 EVP_PKEY *EVP_PKEY_new(void)
183 ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY));
186 EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE);
189 ret->type=EVP_PKEY_NONE;
192 ret->attributes=NULL;
193 ret->save_parameters=1;
197 int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key)
199 if (pkey == NULL) return(0);
200 if (pkey->pkey.ptr != NULL)
201 EVP_PKEY_free_it(pkey);
202 pkey->type=EVP_PKEY_type(type);
203 pkey->save_type=type;
208 #ifndef OPENSSL_NO_RSA
209 int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key)
211 int ret = EVP_PKEY_assign_RSA(pkey, key);
212 if(ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_RSA);
216 RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey)
218 if(pkey->type != EVP_PKEY_RSA) {
219 EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
222 CRYPTO_add(&pkey->pkey.rsa->references, 1, CRYPTO_LOCK_RSA);
223 return pkey->pkey.rsa;
227 #ifndef OPENSSL_NO_DSA
228 int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key)
230 int ret = EVP_PKEY_assign_DSA(pkey, key);
231 if(ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_DSA);
235 DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
237 if(pkey->type != EVP_PKEY_DSA) {
238 EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
241 CRYPTO_add(&pkey->pkey.dsa->references, 1, CRYPTO_LOCK_DSA);
242 return pkey->pkey.dsa;
246 #ifndef OPENSSL_NO_DH
248 int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key)
250 int ret = EVP_PKEY_assign_DH(pkey, key);
251 if(ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_DH);
255 DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
257 if(pkey->type != EVP_PKEY_DH) {
258 EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY);
261 CRYPTO_add(&pkey->pkey.dh->references, 1, CRYPTO_LOCK_DH);
262 return pkey->pkey.dh;
266 int EVP_PKEY_type(int type)
272 return(EVP_PKEY_RSA);
278 return(EVP_PKEY_DSA);
286 void EVP_PKEY_free(EVP_PKEY *x)
290 if (x == NULL) return;
292 i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);
294 REF_PRINT("EVP_PKEY",x);
300 fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
308 static void EVP_PKEY_free_it(EVP_PKEY *x)
312 #ifndef OPENSSL_NO_RSA
315 RSA_free(x->pkey.rsa);
318 #ifndef OPENSSL_NO_DSA
323 DSA_free(x->pkey.dsa);
326 #ifndef OPENSSL_NO_DH