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();
89 const EC_GROUP *group;
97 group = EC_KEY_get0_group(pkey->pkey.ec);
98 if (!EC_GROUP_get_order(group, order, NULL))
104 ret = BN_num_bits(order);
112 int EVP_PKEY_size(EVP_PKEY *pkey)
116 #ifndef OPENSSL_NO_RSA
117 if (pkey->type == EVP_PKEY_RSA)
118 return(RSA_size(pkey->pkey.rsa));
121 #ifndef OPENSSL_NO_DSA
122 if (pkey->type == EVP_PKEY_DSA)
123 return(DSA_size(pkey->pkey.dsa));
125 #ifndef OPENSSL_NO_ECDSA
126 if (pkey->type == EVP_PKEY_EC)
127 return(ECDSA_size(pkey->pkey.ec));
133 int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
135 #ifndef OPENSSL_NO_DSA
136 if (pkey->type == EVP_PKEY_DSA)
138 int ret=pkey->save_parameters;
141 pkey->save_parameters=mode;
145 #ifndef OPENSSL_NO_EC
146 if (pkey->type == EVP_PKEY_EC)
148 int ret = pkey->save_parameters;
151 pkey->save_parameters = mode;
158 int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
160 if (to->type != from->type)
162 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES);
166 if (EVP_PKEY_missing_parameters(from))
168 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS);
171 #ifndef OPENSSL_NO_DSA
172 if (to->type == EVP_PKEY_DSA)
176 if ((a=BN_dup(from->pkey.dsa->p)) == NULL) goto err;
177 if (to->pkey.dsa->p != NULL) BN_free(to->pkey.dsa->p);
180 if ((a=BN_dup(from->pkey.dsa->q)) == NULL) goto err;
181 if (to->pkey.dsa->q != NULL) BN_free(to->pkey.dsa->q);
184 if ((a=BN_dup(from->pkey.dsa->g)) == NULL) goto err;
185 if (to->pkey.dsa->g != NULL) BN_free(to->pkey.dsa->g);
189 #ifndef OPENSSL_NO_EC
190 if (to->type == EVP_PKEY_EC)
192 EC_GROUP *group = EC_GROUP_dup(EC_KEY_get0_group(from->pkey.ec));
195 if (EC_KEY_set_group(to->pkey.ec, group) == 0)
197 EC_GROUP_free(group);
205 int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
207 #ifndef OPENSSL_NO_DSA
208 if (pkey->type == EVP_PKEY_DSA)
213 if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))
217 #ifndef OPENSSL_NO_EC
218 if (pkey->type == EVP_PKEY_EC)
220 if (EC_KEY_get0_group(pkey->pkey.ec) == NULL)
228 int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
230 #ifndef OPENSSL_NO_DSA
231 if ((a->type == EVP_PKEY_DSA) && (b->type == EVP_PKEY_DSA))
233 if ( BN_cmp(a->pkey.dsa->p,b->pkey.dsa->p) ||
234 BN_cmp(a->pkey.dsa->q,b->pkey.dsa->q) ||
235 BN_cmp(a->pkey.dsa->g,b->pkey.dsa->g))
241 #ifndef OPENSSL_NO_EC
242 if (a->type == EVP_PKEY_EC && b->type == EVP_PKEY_EC)
244 const EC_GROUP *group_a = EC_KEY_get0_group(a->pkey.ec),
245 *group_b = EC_KEY_get0_group(b->pkey.ec);
246 if (EC_GROUP_cmp(group_a, group_b, NULL))
255 int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
257 if (a->type != b->type)
260 if (EVP_PKEY_cmp_parameters(a, b) == 0)
265 #ifndef OPENSSL_NO_RSA
267 if (BN_cmp(b->pkey.rsa->n,a->pkey.rsa->n) != 0
268 || BN_cmp(b->pkey.rsa->e,a->pkey.rsa->e) != 0)
272 #ifndef OPENSSL_NO_DSA
274 if (BN_cmp(b->pkey.dsa->pub_key,a->pkey.dsa->pub_key) != 0)
278 #ifndef OPENSSL_NO_EC
282 const EC_GROUP *group = EC_KEY_get0_group(b->pkey.ec);
283 const EC_POINT *pa = EC_KEY_get0_public_key(a->pkey.ec),
284 *pb = EC_KEY_get0_public_key(b->pkey.ec);
285 r = EC_POINT_cmp(group, pa, pb, NULL);
296 #ifndef OPENSSL_NO_DH
307 EVP_PKEY *EVP_PKEY_new(void)
311 ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY));
314 EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE);
317 ret->type=EVP_PKEY_NONE;
320 ret->attributes=NULL;
321 ret->save_parameters=1;
325 int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key)
327 if (pkey == NULL) return(0);
328 if (pkey->pkey.ptr != NULL)
329 EVP_PKEY_free_it(pkey);
330 pkey->type=EVP_PKEY_type(type);
331 pkey->save_type=type;
336 #ifndef OPENSSL_NO_RSA
337 int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key)
339 int ret = EVP_PKEY_assign_RSA(pkey, key);
345 RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey)
347 if(pkey->type != EVP_PKEY_RSA) {
348 EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
351 RSA_up_ref(pkey->pkey.rsa);
352 return pkey->pkey.rsa;
356 #ifndef OPENSSL_NO_DSA
357 int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key)
359 int ret = EVP_PKEY_assign_DSA(pkey, key);
365 DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
367 if(pkey->type != EVP_PKEY_DSA) {
368 EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
371 DSA_up_ref(pkey->pkey.dsa);
372 return pkey->pkey.dsa;
376 #ifndef OPENSSL_NO_EC
378 int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key)
380 int ret = EVP_PKEY_assign_EC_KEY(pkey,key);
386 EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey)
388 if (pkey->type != EVP_PKEY_EC)
390 EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
393 EC_KEY_up_ref(pkey->pkey.ec);
394 return pkey->pkey.ec;
399 #ifndef OPENSSL_NO_DH
401 int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key)
403 int ret = EVP_PKEY_assign_DH(pkey, key);
409 DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
411 if(pkey->type != EVP_PKEY_DH) {
412 EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY);
415 DH_up_ref(pkey->pkey.dh);
416 return pkey->pkey.dh;
420 int EVP_PKEY_type(int type)
426 return(EVP_PKEY_RSA);
432 return(EVP_PKEY_DSA);
442 void EVP_PKEY_free(EVP_PKEY *x)
446 if (x == NULL) return;
448 i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);
450 REF_PRINT("EVP_PKEY",x);
456 fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
462 sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);
466 static void EVP_PKEY_free_it(EVP_PKEY *x)
470 #ifndef OPENSSL_NO_RSA
473 RSA_free(x->pkey.rsa);
476 #ifndef OPENSSL_NO_DSA
481 DSA_free(x->pkey.dsa);
484 #ifndef OPENSSL_NO_EC
486 EC_KEY_free(x->pkey.ec);
489 #ifndef OPENSSL_NO_DH