[thirdparty/openssl.git] / crypto / evp / p_lib.c

/* crypto/evp/p_lib.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>
#include "cryptlib.h"
#include <openssl/bn.h>
#include <openssl/err.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/asn1_mac.h>
#include <openssl/x509.h>
#ifndef OPENSSL_NO_RSA
#include <openssl/rsa.h>
#endif
#ifndef OPENSSL_NO_DSA
#include <openssl/dsa.h>
#endif
#ifndef OPENSSL_NO_DH
#include <openssl/dh.h>
#endif

#include "asn1_locl.h"

static void EVP_PKEY_free_it(EVP_PKEY *x);

int EVP_PKEY_bits(EVP_PKEY *pkey)
	{
	if (pkey && pkey->ameth && pkey->ameth->pkey_bits)
		return pkey->ameth->pkey_bits(pkey);
	return 0;
	}

int EVP_PKEY_size(EVP_PKEY *pkey)
	{
	if (pkey && pkey->ameth && pkey->ameth->pkey_size)
		return pkey->ameth->pkey_size(pkey);
	return 0;
	}

int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
	{
#ifndef OPENSSL_NO_DSA
	if (pkey->type == EVP_PKEY_DSA)
		{
		int ret=pkey->save_parameters;

		if (mode >= 0)
			pkey->save_parameters=mode;
		return(ret);
		}
#endif
#ifndef OPENSSL_NO_EC
	if (pkey->type == EVP_PKEY_EC)
		{
		int ret = pkey->save_parameters;

		if (mode >= 0)
			pkey->save_parameters = mode;
		return(ret);
		}
#endif
	return(0);
	}

int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
	{
	if (to->type != from->type)
		{
		EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES);
		goto err;
		}

	if (EVP_PKEY_missing_parameters(from))
		{
		EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS);
		goto err;
		}
	if (from->ameth && from->ameth->param_copy)
		return from->ameth->param_copy(to, from);
err:
	return 0;
	}

int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
	{
	if (pkey->ameth && pkey->ameth->param_missing)
		return pkey->ameth->param_missing(pkey);
	return 0;
	}

int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
	{
	if (a->type != b->type)
		return -1;
	if (a->ameth && a->ameth->param_cmp)
		return a->ameth->param_cmp(a, b);
	return -2;
	}

int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
	{
	if (a->type != b->type)
		return -1;

	if (EVP_PKEY_cmp_parameters(a, b) == 0)
		return 0;

	if (a->ameth && a->ameth->pub_cmp)
		return a->ameth->pub_cmp(a, b);

	return -2;
	}

EVP_PKEY *EVP_PKEY_new(void)
	{
	EVP_PKEY *ret;

	ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY));
	if (ret == NULL)
		{
		EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE);
		return(NULL);
		}
	ret->type=EVP_PKEY_NONE;
	ret->references=1;
	ret->ameth=NULL;
	ret->pkey.ptr=NULL;
	ret->attributes=NULL;
	ret->save_parameters=1;
	return(ret);
	}

int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key)
	{
	const EVP_PKEY_ASN1_METHOD *ameth;
	if (pkey == NULL) return(0);
	if (pkey->pkey.ptr != NULL)
		EVP_PKEY_free_it(pkey);
	ameth = EVP_PKEY_asn1_find(type);
	pkey->ameth = ameth;
	pkey->type = ameth->pkey_id;
	pkey->save_type=type;
	pkey->pkey.ptr=key;
	return(key != NULL);
	}

void *EVP_PKEY_get0(EVP_PKEY *pkey)
	{
	return pkey->pkey.ptr;
	}

#ifndef OPENSSL_NO_RSA
int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key)
{
	int ret = EVP_PKEY_assign_RSA(pkey, key);
	if(ret)
		RSA_up_ref(key);
	return ret;
}

RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey)
	{
	if(pkey->type != EVP_PKEY_RSA) {
		EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
		return NULL;
	}
	RSA_up_ref(pkey->pkey.rsa);
	return pkey->pkey.rsa;
}
#endif

#ifndef OPENSSL_NO_DSA
int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key)
{
	int ret = EVP_PKEY_assign_DSA(pkey, key);
	if(ret)
		DSA_up_ref(key);
	return ret;
}

DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
	{
	if(pkey->type != EVP_PKEY_DSA) {
		EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
		return NULL;
	}
	DSA_up_ref(pkey->pkey.dsa);
	return pkey->pkey.dsa;
}
#endif

#ifndef OPENSSL_NO_EC

int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key)
{
	int ret = EVP_PKEY_assign_EC_KEY(pkey,key);
	if (ret)
		EC_KEY_up_ref(key);
	return ret;
}

EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey)
{
	if (pkey->type != EVP_PKEY_EC)
	{
		EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
		return NULL;
	}
	EC_KEY_up_ref(pkey->pkey.ec);
	return pkey->pkey.ec;
}
#endif


#ifndef OPENSSL_NO_DH

int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key)
{
	int ret = EVP_PKEY_assign_DH(pkey, key);
	if(ret)
		DH_up_ref(key);
	return ret;
}

DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
	{
	if(pkey->type != EVP_PKEY_DH) {
		EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY);
		return NULL;
	}
	DH_up_ref(pkey->pkey.dh);
	return pkey->pkey.dh;
}
#endif

int EVP_PKEY_type(int type)
	{
	const EVP_PKEY_ASN1_METHOD *ameth;
	ameth = EVP_PKEY_asn1_find(type);
	if (ameth)
		return ameth->pkey_id;
	return NID_undef;
	}

int EVP_PKEY_id(const EVP_PKEY *pkey)
	{
	return pkey->type;
	}

int EVP_PKEY_base_id(const EVP_PKEY *pkey)
	{
	return EVP_PKEY_type(pkey->type);
	}

void EVP_PKEY_free(EVP_PKEY *x)
	{
	int i;

	if (x == NULL) return;

	i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);
#ifdef REF_PRINT
	REF_PRINT("EVP_PKEY",x);
#endif
	if (i > 0) return;
#ifdef REF_CHECK
	if (i < 0)
		{
		fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
		abort();
		}
#endif
	EVP_PKEY_free_it(x);
	if (x->attributes)
		sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);
	OPENSSL_free(x);
	}

static void EVP_PKEY_free_it(EVP_PKEY *x)
	{
	if (x->ameth && x->ameth->pkey_free)
		x->ameth->pkey_free(x);
	}

static int unsup_alg(BIO *out, const EVP_PKEY *pkey, int indent,
				const char *kstr)
	{
	BIO_indent(out, indent, 128);
	BIO_printf(out, "%s %s, algorithm, unsupported\n",
						OBJ_nid2ln(pkey->type), kstr);
	return 1;
	}

int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey,
				int indent, ASN1_PCTX *pctx)
	{
	if (pkey->ameth && pkey->ameth->pub_print)
		return pkey->ameth->pub_print(out, pkey, indent, pctx);
	
	return unsup_alg(out, pkey, indent, "Public Key");
	}

int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey,
				int indent, ASN1_PCTX *pctx)
	{
	if (pkey->ameth && pkey->ameth->priv_print)
		return pkey->ameth->priv_print(out, pkey, indent, pctx);
	
	return unsup_alg(out, pkey, indent, "Private Key");
	}

int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey,
				int indent, ASN1_PCTX *pctx)
	{
	if (pkey->ameth && pkey->ameth->param_print)
		return pkey->ameth->param_print(out, pkey, indent, pctx);
	return unsup_alg(out, pkey, indent, "Parameters");
	}

int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid)
	{
	if (!pkey->ameth || !pkey->ameth->pkey_ctrl)
		return -2;
	return pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID,
						0, pnid);
	}
Commit	Line	Data
d02b48c6	1	/* crypto/evp/p_lib.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	3	* All rights reserved.
	4	*
	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.
	8	*
	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).
	15	*
	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.
	22	*
	23	* Redistribution and use in source and binary forms, with or without
	24	* modification, are permitted provided that the following conditions
	25	* are met:
	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)"
	40	*
	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
	51	* SUCH DAMAGE.
	52	*
	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.]
	57	*/
	58
	59	#include <stdio.h>
	60	#include "cryptlib.h"
4d94ae00 BM	61	#include <openssl/bn.h>
4d94ae00 BM	62	#include <openssl/err.h>
ec577822 BM	63	#include <openssl/objects.h>
	64	#include <openssl/evp.h>
	65	#include <openssl/asn1_mac.h>
	66	#include <openssl/x509.h>
3eeaab4b	67	#ifndef OPENSSL_NO_RSA
60a938c6	68	#include <openssl/rsa.h>
3eeaab4b NL	69	#endif
3eeaab4b NL	70	#ifndef OPENSSL_NO_DSA
60a938c6	71	#include <openssl/dsa.h>
3eeaab4b NL	72	#endif
3eeaab4b NL	73	#ifndef OPENSSL_NO_DH
60a938c6	74	#include <openssl/dh.h>
3eeaab4b	75	#endif
d02b48c6	76
18e377b4 DSH	77	#include "asn1_locl.h"
18e377b4 DSH	78
d02b48c6	79	static void EVP_PKEY_free_it(EVP_PKEY *x);
bb2297a4	80
6b691a5c	81	int EVP_PKEY_bits(EVP_PKEY *pkey)
58964a49	82	{
6f81892e DSH	83	if (pkey && pkey->ameth && pkey->ameth->pkey_bits)
	84	return pkey->ameth->pkey_bits(pkey);
	85	return 0;
58964a49 RE	86	}
58964a49 RE	87
6b691a5c	88	int EVP_PKEY_size(EVP_PKEY *pkey)
d02b48c6	89	{
6f81892e DSH	90	if (pkey && pkey->ameth && pkey->ameth->pkey_size)
	91	return pkey->ameth->pkey_size(pkey);
	92	return 0;
d02b48c6 RE	93	}
d02b48c6 RE	94
6b691a5c	95	int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
d02b48c6	96	{
cf1b7d96	97	#ifndef OPENSSL_NO_DSA
d02b48c6 RE	98	if (pkey->type == EVP_PKEY_DSA)
d02b48c6 RE	99	{
bc8a9f1f	100	int ret=pkey->save_parameters;
d02b48c6 RE	101
	102	if (mode >= 0)
	103	pkey->save_parameters=mode;
	104	return(ret);
	105	}
4d94ae00	106	#endif
5488bb61 BM	107	#ifndef OPENSSL_NO_EC
5488bb61 BM	108	if (pkey->type == EVP_PKEY_EC)
4d94ae00 BM	109	{
	110	int ret = pkey->save_parameters;
	111
	112	if (mode >= 0)
	113	pkey->save_parameters = mode;
	114	return(ret);
	115	}
d02b48c6 RE	116	#endif
	117	return(0);
	118	}
	119
a8b72844	120	int EVP_PKEY_copy_parameters(EVP_PKEY to, const EVP_PKEY from)
d02b48c6 RE	121	{
	122	if (to->type != from->type)
	123	{
	124	EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES);
58964a49	125	goto err;
d02b48c6 RE	126	}
	127
	128	if (EVP_PKEY_missing_parameters(from))
	129	{
657e60fa	130	EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS);
58964a49	131	goto err;
d02b48c6	132	}
6f81892e DSH	133	if (from->ameth && from->ameth->param_copy)
6f81892e DSH	134	return from->ameth->param_copy(to, from);
d02b48c6	135	err:
6f81892e	136	return 0;
d02b48c6 RE	137	}
d02b48c6 RE	138
af0f0f3e	139	int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
d02b48c6	140	{
6f81892e DSH	141	if (pkey->ameth && pkey->ameth->param_missing)
	142	return pkey->ameth->param_missing(pkey);
	143	return 0;
d02b48c6 RE	144	}
d02b48c6 RE	145
af0f0f3e	146	int EVP_PKEY_cmp_parameters(const EVP_PKEY a, const EVP_PKEY b)
58964a49	147	{
6f81892e DSH	148	if (a->type != b->type)
	149	return -1;
	150	if (a->ameth && a->ameth->param_cmp)
	151	return a->ameth->param_cmp(a, b);
b4634358	152	return -2;
58964a49 RE	153	}
58964a49 RE	154
af0f0f3e	155	int EVP_PKEY_cmp(const EVP_PKEY a, const EVP_PKEY b)
e6526fbf RL	156	{
	157	if (a->type != b->type)
	158	return -1;
	159
7b36590b RL	160	if (EVP_PKEY_cmp_parameters(a, b) == 0)
7b36590b RL	161	return 0;
a8b72844	162
6f81892e DSH	163	if (a->ameth && a->ameth->pub_cmp)
6f81892e DSH	164	return a->ameth->pub_cmp(a, b);
e6526fbf	165
6f81892e	166	return -2;
e6526fbf RL	167	}
e6526fbf RL	168
6b691a5c	169	EVP_PKEY *EVP_PKEY_new(void)
d02b48c6 RE	170	{
	171	EVP_PKEY *ret;
	172
26a3a48d	173	ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY));
d02b48c6 RE	174	if (ret == NULL)
	175	{
	176	EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE);
	177	return(NULL);
	178	}
	179	ret->type=EVP_PKEY_NONE;
	180	ret->references=1;
6f81892e	181	ret->ameth=NULL;
d02b48c6 RE	182	ret->pkey.ptr=NULL;
	183	ret->attributes=NULL;
	184	ret->save_parameters=1;
	185	return(ret);
	186	}
	187
732a40e1	188	int EVP_PKEY_assign(EVP_PKEY pkey, int type, void key)
d02b48c6	189	{
6f81892e	190	const EVP_PKEY_ASN1_METHOD *ameth;
d02b48c6 RE	191	if (pkey == NULL) return(0);
	192	if (pkey->pkey.ptr != NULL)
	193	EVP_PKEY_free_it(pkey);
18e377b4	194	ameth = EVP_PKEY_asn1_find(type);
6f81892e DSH	195	pkey->ameth = ameth;
6f81892e DSH	196	pkey->type = ameth->pkey_id;
d02b48c6 RE	197	pkey->save_type=type;
d02b48c6 RE	198	pkey->pkey.ptr=key;
7f5b6f0f	199	return(key != NULL);
d02b48c6 RE	200	}
d02b48c6 RE	201
db98bbc1 DSH	202	void EVP_PKEY_get0(EVP_PKEY pkey)
	203	{
	204	return pkey->pkey.ptr;
	205	}
	206
cf1b7d96	207	#ifndef OPENSSL_NO_RSA
c7cb16a8	208	int EVP_PKEY_set1_RSA(EVP_PKEY pkey, RSA key)
52664f50	209	{
6d3724d3	210	int ret = EVP_PKEY_assign_RSA(pkey, key);
78435364	211	if(ret)
6ac4e8bd	212	RSA_up_ref(key);
6d3724d3	213	return ret;
52664f50 DSH	214	}
52664f50 DSH	215
c7cb16a8	216	RSA EVP_PKEY_get1_RSA(EVP_PKEY pkey)
f769ce3e DSH	217	{
f769ce3e DSH	218	if(pkey->type != EVP_PKEY_RSA) {
c7cb16a8	219	EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
f769ce3e DSH	220	return NULL;
f769ce3e DSH	221	}
6ac4e8bd	222	RSA_up_ref(pkey->pkey.rsa);
f769ce3e DSH	223	return pkey->pkey.rsa;
	224	}
	225	#endif
	226
cf1b7d96	227	#ifndef OPENSSL_NO_DSA
c7cb16a8	228	int EVP_PKEY_set1_DSA(EVP_PKEY pkey, DSA key)
52664f50	229	{
6d3724d3	230	int ret = EVP_PKEY_assign_DSA(pkey, key);
78435364	231	if(ret)
6ac4e8bd	232	DSA_up_ref(key);
6d3724d3	233	return ret;
52664f50 DSH	234	}
52664f50 DSH	235
c7cb16a8	236	DSA EVP_PKEY_get1_DSA(EVP_PKEY pkey)
f769ce3e DSH	237	{
f769ce3e DSH	238	if(pkey->type != EVP_PKEY_DSA) {
c7cb16a8	239	EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
f769ce3e DSH	240	return NULL;
f769ce3e DSH	241	}
6ac4e8bd	242	DSA_up_ref(pkey->pkey.dsa);
f769ce3e DSH	243	return pkey->pkey.dsa;
	244	}
	245	#endif
	246
14a7cfb3	247	#ifndef OPENSSL_NO_EC
4d94ae00	248
14a7cfb3	249	int EVP_PKEY_set1_EC_KEY(EVP_PKEY pkey, EC_KEY key)
4d94ae00	250	{
14a7cfb3	251	int ret = EVP_PKEY_assign_EC_KEY(pkey,key);
9dd84053 NL	252	if (ret)
	253	EC_KEY_up_ref(key);
	254	return ret;
4d94ae00 BM	255	}
4d94ae00 BM	256
14a7cfb3	257	EC_KEY EVP_PKEY_get1_EC_KEY(EVP_PKEY pkey)
4d94ae00	258	{
14a7cfb3	259	if (pkey->type != EVP_PKEY_EC)
4d94ae00	260	{
14a7cfb3	261	EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
4d94ae00 BM	262	return NULL;
4d94ae00 BM	263	}
9dd84053 NL	264	EC_KEY_up_ref(pkey->pkey.ec);
9dd84053 NL	265	return pkey->pkey.ec;
4d94ae00 BM	266	}
	267	#endif
	268
	269
cf1b7d96	270	#ifndef OPENSSL_NO_DH
52664f50	271
c7cb16a8	272	int EVP_PKEY_set1_DH(EVP_PKEY pkey, DH key)
52664f50	273	{
6d3724d3	274	int ret = EVP_PKEY_assign_DH(pkey, key);
78435364	275	if(ret)
e815d301	276	DH_up_ref(key);
6d3724d3	277	return ret;
52664f50 DSH	278	}
52664f50 DSH	279
c7cb16a8	280	DH EVP_PKEY_get1_DH(EVP_PKEY pkey)
f769ce3e DSH	281	{
f769ce3e DSH	282	if(pkey->type != EVP_PKEY_DH) {
c7cb16a8	283	EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY);
f769ce3e DSH	284	return NULL;
f769ce3e DSH	285	}
e815d301	286	DH_up_ref(pkey->pkey.dh);
f769ce3e DSH	287	return pkey->pkey.dh;
	288	}
	289	#endif
	290
6b691a5c	291	int EVP_PKEY_type(int type)
d02b48c6	292	{
6f81892e	293	const EVP_PKEY_ASN1_METHOD *ameth;
18e377b4	294	ameth = EVP_PKEY_asn1_find(type);
6f81892e DSH	295	if (ameth)
	296	return ameth->pkey_id;
	297	return NID_undef;
d02b48c6 RE	298	}
d02b48c6 RE	299
7f57b076 DSH	300	int EVP_PKEY_id(const EVP_PKEY *pkey)
	301	{
	302	return pkey->type;
	303	}
	304
	305	int EVP_PKEY_base_id(const EVP_PKEY *pkey)
	306	{
	307	return EVP_PKEY_type(pkey->type);
	308	}
	309
6b691a5c	310	void EVP_PKEY_free(EVP_PKEY *x)
d02b48c6 RE	311	{
	312	int i;
	313
	314	if (x == NULL) return;
	315
	316	i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);
58964a49 RE	317	#ifdef REF_PRINT
	318	REF_PRINT("EVP_PKEY",x);
	319	#endif
d02b48c6 RE	320	if (i > 0) return;
	321	#ifdef REF_CHECK
	322	if (i < 0)
	323	{
	324	fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
	325	abort();
	326	}
	327	#endif
	328	EVP_PKEY_free_it(x);
b6995add DSH	329	if (x->attributes)
b6995add DSH	330	sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);
26a3a48d	331	OPENSSL_free(x);
d02b48c6 RE	332	}
d02b48c6 RE	333
6b691a5c	334	static void EVP_PKEY_free_it(EVP_PKEY *x)
d02b48c6	335	{
6f81892e DSH	336	if (x->ameth && x->ameth->pkey_free)
6f81892e DSH	337	x->ameth->pkey_free(x);
d02b48c6 RE	338	}
d02b48c6 RE	339
35208f36 DSH	340	static int unsup_alg(BIO out, const EVP_PKEY pkey, int indent,
	341	const char *kstr)
	342	{
	343	BIO_indent(out, indent, 128);
	344	BIO_printf(out, "%s %s, algorithm, unsupported\n",
	345	OBJ_nid2ln(pkey->type), kstr);
	346	return 1;
	347	}
	348
	349	int EVP_PKEY_print_public(BIO out, const EVP_PKEY pkey,
	350	int indent, ASN1_PCTX *pctx)
	351	{
	352	if (pkey->ameth && pkey->ameth->pub_print)
	353	return pkey->ameth->pub_print(out, pkey, indent, pctx);
	354
	355	return unsup_alg(out, pkey, indent, "Public Key");
	356	}
	357
	358	int EVP_PKEY_print_private(BIO out, const EVP_PKEY pkey,
	359	int indent, ASN1_PCTX *pctx)
	360	{
	361	if (pkey->ameth && pkey->ameth->priv_print)
	362	return pkey->ameth->priv_print(out, pkey, indent, pctx);
	363
	364	return unsup_alg(out, pkey, indent, "Private Key");
	365	}
	366
	367	int EVP_PKEY_print_params(BIO out, const EVP_PKEY pkey,
	368	int indent, ASN1_PCTX *pctx)
	369	{
	370	if (pkey->ameth && pkey->ameth->param_print)
	371	return pkey->ameth->param_print(out, pkey, indent, pctx);
	372	return unsup_alg(out, pkey, indent, "Parameters");
	373	}
03919683 DSH	374
	375	int EVP_PKEY_get_default_digest_nid(EVP_PKEY pkey, int pnid)
	376	{
	377	if (!pkey->ameth \|\| !pkey->ameth->pkey_ctrl)
	378	return -2;
	379	return pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_DEFAULT_MD_NID,
	380	0, pnid);
	381	}
	382