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 #ifndef OPENSSL_NO_RSA
68 #include <openssl/rsa.h>
70 #ifndef OPENSSL_NO_DSA
71 #include <openssl/dsa.h>
74 #include <openssl/dh.h>
77 #include "asn1_locl.h"
79 static void EVP_PKEY_free_it(EVP_PKEY *x);
81 int EVP_PKEY_bits(EVP_PKEY *pkey)
83 if (pkey && pkey->ameth && pkey->ameth->pkey_bits)
84 return pkey->ameth->pkey_bits(pkey);
88 int EVP_PKEY_size(EVP_PKEY *pkey)
90 if (pkey && pkey->ameth && pkey->ameth->pkey_size)
91 return pkey->ameth->pkey_size(pkey);
95 int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
97 #ifndef OPENSSL_NO_DSA
98 if (pkey->type == EVP_PKEY_DSA)
100 int ret=pkey->save_parameters;
103 pkey->save_parameters=mode;
107 #ifndef OPENSSL_NO_EC
108 if (pkey->type == EVP_PKEY_EC)
110 int ret = pkey->save_parameters;
113 pkey->save_parameters = mode;
120 int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
122 if (to->type != from->type)
124 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES);
128 if (EVP_PKEY_missing_parameters(from))
130 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS);
133 if (from->ameth && from->ameth->param_copy)
134 return from->ameth->param_copy(to, from);
139 int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
141 if (pkey->ameth && pkey->ameth->param_missing)
142 return pkey->ameth->param_missing(pkey);
146 int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
148 if (a->type != b->type)
150 if (a->ameth && a->ameth->param_cmp)
151 return a->ameth->param_cmp(a, b);
155 int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
157 if (a->type != b->type)
160 if (EVP_PKEY_cmp_parameters(a, b) == 0)
163 if (a->ameth && a->ameth->pub_cmp)
164 return a->ameth->pub_cmp(a, b);
169 EVP_PKEY *EVP_PKEY_new(void)
173 ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY));
176 EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE);
179 ret->type=EVP_PKEY_NONE;
183 ret->attributes=NULL;
184 ret->save_parameters=1;
188 int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key)
190 const EVP_PKEY_ASN1_METHOD *ameth;
191 if (pkey == NULL) return(0);
192 if (pkey->pkey.ptr != NULL)
193 EVP_PKEY_free_it(pkey);
194 ameth = EVP_PKEY_asn1_find(type);
196 pkey->type = ameth->pkey_id;
197 pkey->save_type=type;
202 void *EVP_PKEY_get0(EVP_PKEY *pkey)
204 return pkey->pkey.ptr;
207 #ifndef OPENSSL_NO_RSA
208 int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key)
210 int ret = EVP_PKEY_assign_RSA(pkey, key);
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 RSA_up_ref(pkey->pkey.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);
236 DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
238 if(pkey->type != EVP_PKEY_DSA) {
239 EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
242 DSA_up_ref(pkey->pkey.dsa);
243 return pkey->pkey.dsa;
247 #ifndef OPENSSL_NO_EC
249 int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key)
251 int ret = EVP_PKEY_assign_EC_KEY(pkey,key);
257 EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey)
259 if (pkey->type != EVP_PKEY_EC)
261 EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
264 EC_KEY_up_ref(pkey->pkey.ec);
265 return pkey->pkey.ec;
270 #ifndef OPENSSL_NO_DH
272 int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key)
274 int ret = EVP_PKEY_assign_DH(pkey, key);
280 DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
282 if(pkey->type != EVP_PKEY_DH) {
283 EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY);
286 DH_up_ref(pkey->pkey.dh);
287 return pkey->pkey.dh;
291 int EVP_PKEY_type(int type)
293 const EVP_PKEY_ASN1_METHOD *ameth;
294 ameth = EVP_PKEY_asn1_find(type);
296 return ameth->pkey_id;
300 void EVP_PKEY_free(EVP_PKEY *x)
304 if (x == NULL) return;
306 i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);
308 REF_PRINT("EVP_PKEY",x);
314 fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
320 sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);
324 static void EVP_PKEY_free_it(EVP_PKEY *x)
326 if (x->ameth && x->ameth->pkey_free)
327 x->ameth->pkey_free(x);
330 static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent,
333 BIO_indent(out, indent, 128);
334 BIO_printf(out, "%s %s, algorithm, unsupported\n",
335 OBJ_nid2ln(pkey->type), kstr);
339 int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey,
340 int indent, ASN1_PCTX *pctx)
342 if (pkey->ameth && pkey->ameth->pub_print)
343 return pkey->ameth->pub_print(out, pkey, indent, pctx);
345 return unsup_alg(out, pkey, indent, "Public Key");
348 int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey,
349 int indent, ASN1_PCTX *pctx)
351 if (pkey->ameth && pkey->ameth->priv_print)
352 return pkey->ameth->priv_print(out, pkey, indent, pctx);
354 return unsup_alg(out, pkey, indent, "Private Key");
357 int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey,
358 int indent, ASN1_PCTX *pctx)
360 if (pkey->ameth && pkey->ameth->param_print)
361 return pkey->ameth->param_print(out, pkey, indent, pctx);
362 return unsup_alg(out, pkey, indent, "Parameters");