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 static void EVP_PKEY_free_it(EVP_PKEY *x);
79 int EVP_PKEY_bits(EVP_PKEY *pkey)
81 if (pkey && pkey->ameth && pkey->ameth->pkey_bits)
82 return pkey->ameth->pkey_bits(pkey);
86 int EVP_PKEY_size(EVP_PKEY *pkey)
88 if (pkey && pkey->ameth && pkey->ameth->pkey_size)
89 return pkey->ameth->pkey_size(pkey);
93 int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
95 #ifndef OPENSSL_NO_DSA
96 if (pkey->type == EVP_PKEY_DSA)
98 int ret=pkey->save_parameters;
101 pkey->save_parameters=mode;
105 #ifndef OPENSSL_NO_EC
106 if (pkey->type == EVP_PKEY_EC)
108 int ret = pkey->save_parameters;
111 pkey->save_parameters = mode;
118 int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
120 if (to->type != from->type)
122 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES);
126 if (EVP_PKEY_missing_parameters(from))
128 EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS);
131 if (from->ameth && from->ameth->param_copy)
132 return from->ameth->param_copy(to, from);
137 int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
139 if (pkey->ameth && pkey->ameth->param_missing)
140 return pkey->ameth->param_missing(pkey);
144 int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
146 if (a->type != b->type)
148 if (a->ameth && a->ameth->param_cmp)
149 return a->ameth->param_cmp(a, b);
153 int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
155 if (a->type != b->type)
158 if (EVP_PKEY_cmp_parameters(a, b) == 0)
161 if (a->ameth && a->ameth->pub_cmp)
162 return a->ameth->pub_cmp(a, b);
167 EVP_PKEY *EVP_PKEY_new(void)
171 ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY));
174 EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE);
177 ret->type=EVP_PKEY_NONE;
181 ret->attributes=NULL;
182 ret->save_parameters=1;
186 int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key)
188 const EVP_PKEY_ASN1_METHOD *ameth;
189 if (pkey == NULL) return(0);
190 if (pkey->pkey.ptr != NULL)
191 EVP_PKEY_free_it(pkey);
192 ameth = EVP_PKEY_ASN1_find(type);
194 pkey->type = ameth->pkey_id;
195 pkey->save_type=type;
200 #ifndef OPENSSL_NO_RSA
201 int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key)
203 int ret = EVP_PKEY_assign_RSA(pkey, key);
209 RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey)
211 if(pkey->type != EVP_PKEY_RSA) {
212 EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
215 RSA_up_ref(pkey->pkey.rsa);
216 return pkey->pkey.rsa;
220 #ifndef OPENSSL_NO_DSA
221 int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key)
223 int ret = EVP_PKEY_assign_DSA(pkey, key);
229 DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
231 if(pkey->type != EVP_PKEY_DSA) {
232 EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
235 DSA_up_ref(pkey->pkey.dsa);
236 return pkey->pkey.dsa;
240 #ifndef OPENSSL_NO_EC
242 int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key)
244 int ret = EVP_PKEY_assign_EC_KEY(pkey,key);
250 EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey)
252 if (pkey->type != EVP_PKEY_EC)
254 EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
257 EC_KEY_up_ref(pkey->pkey.ec);
258 return pkey->pkey.ec;
263 #ifndef OPENSSL_NO_DH
265 int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key)
267 int ret = EVP_PKEY_assign_DH(pkey, key);
273 DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
275 if(pkey->type != EVP_PKEY_DH) {
276 EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY);
279 DH_up_ref(pkey->pkey.dh);
280 return pkey->pkey.dh;
284 int EVP_PKEY_type(int type)
286 const EVP_PKEY_ASN1_METHOD *ameth;
287 ameth = EVP_PKEY_ASN1_find(type);
289 return ameth->pkey_id;
293 void EVP_PKEY_free(EVP_PKEY *x)
297 if (x == NULL) return;
299 i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);
301 REF_PRINT("EVP_PKEY",x);
307 fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
313 sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);
317 static void EVP_PKEY_free_it(EVP_PKEY *x)
319 if (x->ameth && x->ameth->pkey_free)
320 x->ameth->pkey_free(x);
323 static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent,
326 BIO_indent(out, indent, 128);
327 BIO_printf(out, "%s %s, algorithm, unsupported\n",
328 OBJ_nid2ln(pkey->type), kstr);
332 int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey,
333 int indent, ASN1_PCTX *pctx)
335 if (pkey->ameth && pkey->ameth->pub_print)
336 return pkey->ameth->pub_print(out, pkey, indent, pctx);
338 return unsup_alg(out, pkey, indent, "Public Key");
341 int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey,
342 int indent, ASN1_PCTX *pctx)
344 if (pkey->ameth && pkey->ameth->priv_print)
345 return pkey->ameth->priv_print(out, pkey, indent, pctx);
347 return unsup_alg(out, pkey, indent, "Private Key");
350 int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey,
351 int indent, ASN1_PCTX *pctx)
353 if (pkey->ameth && pkey->ameth->param_print)
354 return pkey->ameth->param_print(out, pkey, indent, pctx);
355 return unsup_alg(out, pkey, indent, "Parameters");