[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>
#include <openssl/rsa.h>
#include <openssl/dsa.h>
#include <openssl/dh.h>

static void EVP_PKEY_free_it(EVP_PKEY *x);

int EVP_PKEY_bits(EVP_PKEY *pkey)
	{
	if (0)
		return 0;
#ifndef OPENSSL_NO_RSA
	else if (pkey->type == EVP_PKEY_RSA)
		return(BN_num_bits(pkey->pkey.rsa->n));
#endif
#ifndef OPENSSL_NO_DSA
	else if (pkey->type == EVP_PKEY_DSA)
		return(BN_num_bits(pkey->pkey.dsa->p));
#endif
#ifndef OPENSSL_NO_EC
	else if (pkey->type == EVP_PKEY_EC)
		{
		BIGNUM *order = BN_new();
		int ret;

		if (!order)
			{
			ERR_clear_error();
			return 0;
			}
		if (!EC_GROUP_get_order(pkey->pkey.eckey->group, order, NULL))
			{
			ERR_clear_error();
			return 0;
			}

		ret = BN_num_bits(order);
		BN_free(order);
		return ret;
		}
#endif
	return(0);
	}

int EVP_PKEY_size(EVP_PKEY *pkey)
	{
	if (pkey == NULL)
		return(0);
#ifndef OPENSSL_NO_RSA
	if (pkey->type == EVP_PKEY_RSA)
		return(RSA_size(pkey->pkey.rsa));
	else
#endif
#ifndef OPENSSL_NO_DSA
		if (pkey->type == EVP_PKEY_DSA)
		return(DSA_size(pkey->pkey.dsa));
#endif
#ifndef OPENSSL_NO_ECDSA
		if (pkey->type == EVP_PKEY_EC)
		return(ECDSA_size(pkey->pkey.eckey));
#endif

	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;
		}
#ifndef OPENSSL_NO_DSA
	if (to->type == EVP_PKEY_DSA)
		{
		BIGNUM *a;

		if ((a=BN_dup(from->pkey.dsa->p)) == NULL) goto err;
		if (to->pkey.dsa->p != NULL) BN_free(to->pkey.dsa->p);
		to->pkey.dsa->p=a;

		if ((a=BN_dup(from->pkey.dsa->q)) == NULL) goto err;
		if (to->pkey.dsa->q != NULL) BN_free(to->pkey.dsa->q);
		to->pkey.dsa->q=a;

		if ((a=BN_dup(from->pkey.dsa->g)) == NULL) goto err;
		if (to->pkey.dsa->g != NULL) BN_free(to->pkey.dsa->g);
		to->pkey.dsa->g=a;
		}
#endif
#ifndef OPENSSL_NO_EC
	if (to->type == EVP_PKEY_EC)
		{
		if (to->pkey.eckey->group != NULL)
			EC_GROUP_free(to->pkey.eckey->group);
		if ((to->pkey.eckey->group = EC_GROUP_new(
			EC_GROUP_method_of(from->pkey.eckey->group))) == NULL) 
			goto err;
		if (!EC_GROUP_copy(to->pkey.eckey->group,
			from->pkey.eckey->group)) goto err;
		}
#endif
	return(1);
err:
	return(0);
	}

int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
	{
#ifndef OPENSSL_NO_DSA
	if (pkey->type == EVP_PKEY_DSA)
		{
		DSA *dsa;

		dsa=pkey->pkey.dsa;
		if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))
			return(1);
		}
#endif
#ifndef OPENSSL_NO_EC
	if (pkey->type == EVP_PKEY_EC)
		{
		if (pkey->pkey.eckey->group == NULL)
			return(1);
		}
#endif

	return(0);
	}

int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
	{
#ifndef OPENSSL_NO_DSA
	if ((a->type == EVP_PKEY_DSA) && (b->type == EVP_PKEY_DSA))
		{
		if (	BN_cmp(a->pkey.dsa->p,b->pkey.dsa->p) ||
			BN_cmp(a->pkey.dsa->q,b->pkey.dsa->q) ||
			BN_cmp(a->pkey.dsa->g,b->pkey.dsa->g))
			return(0);
		else
			return(1);
		}
#endif
#ifndef OPENSSL_NO_EC
	if (a->type == EVP_PKEY_EC && b->type == EVP_PKEY_EC)
		{
		if (EC_GROUP_cmp(a->pkey.eckey->group, b->pkey.eckey->group, NULL))
			return 0;
		else
			return 1;
		}
#endif
	return(-1);
	}

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;

	switch (a->type)
		{
#ifndef OPENSSL_NO_RSA
	case EVP_PKEY_RSA:
		if (BN_cmp(b->pkey.rsa->n,a->pkey.rsa->n) != 0
			|| BN_cmp(b->pkey.rsa->e,a->pkey.rsa->e) != 0)
			return 0;
		break;
#endif
#ifndef OPENSSL_NO_DSA
	case EVP_PKEY_DSA:
		if (BN_cmp(b->pkey.dsa->pub_key,a->pkey.dsa->pub_key) != 0)
			return 0;
		break;
#endif
#ifndef OPENSSL_NO_EC
	case EVP_PKEY_EC:
		{
		int  r = EC_POINT_cmp(b->pkey.eckey->group, 
			b->pkey.eckey->pub_key,a->pkey.eckey->pub_key,NULL);
		if (r != 0)
			{
			if (r == 1)
				return 0;
			else
				return -2;
			}
		}
 		break;
#endif
#ifndef OPENSSL_NO_DH
	case EVP_PKEY_DH:
		return -2;
#endif
	default:
		return -2;
		}

	return 1;
	}

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->pkey.ptr=NULL;
	ret->attributes=NULL;
	ret->save_parameters=1;
	return(ret);
	}

int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key)
	{
	if (pkey == NULL) return(0);
	if (pkey->pkey.ptr != NULL)
		EVP_PKEY_free_it(pkey);
	pkey->type=EVP_PKEY_type(type);
	pkey->save_type=type;
	pkey->pkey.ptr=key;
	return(key != NULL);
	}

#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) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_EC);
		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;
	}
	CRYPTO_add(&pkey->pkey.eckey->references, 1, CRYPTO_LOCK_EC);
	return pkey->pkey.eckey;
}
#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)
	{
	switch (type)
		{
	case EVP_PKEY_RSA:
	case EVP_PKEY_RSA2:
		return(EVP_PKEY_RSA);
	case EVP_PKEY_DSA:
	case EVP_PKEY_DSA1:
	case EVP_PKEY_DSA2:
	case EVP_PKEY_DSA3:
	case EVP_PKEY_DSA4:
		return(EVP_PKEY_DSA);
	case EVP_PKEY_DH:
		return(EVP_PKEY_DH);
	case EVP_PKEY_EC:
		return(EVP_PKEY_EC);
	default:
		return(NID_undef);
		}
	}

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);
	OPENSSL_free(x);
	}

static void EVP_PKEY_free_it(EVP_PKEY *x)
	{
	switch (x->type)
		{
#ifndef OPENSSL_NO_RSA
	case EVP_PKEY_RSA:
	case EVP_PKEY_RSA2:
		RSA_free(x->pkey.rsa);
		break;
#endif
#ifndef OPENSSL_NO_DSA
	case EVP_PKEY_DSA:
	case EVP_PKEY_DSA2:
	case EVP_PKEY_DSA3:
	case EVP_PKEY_DSA4:
		DSA_free(x->pkey.dsa);
		break;
#endif
#ifndef OPENSSL_NO_EC
	case EVP_PKEY_EC:
		EC_KEY_free(x->pkey.eckey);
		break;
#endif
#ifndef OPENSSL_NO_DH
	case EVP_PKEY_DH:
		DH_free(x->pkey.dh);
		break;
#endif
		}
	}
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>
60a938c6 GT	67	#include <openssl/rsa.h>
	68	#include <openssl/dsa.h>
	69	#include <openssl/dh.h>
d02b48c6	70
d02b48c6	71	static void EVP_PKEY_free_it(EVP_PKEY *x);
bb2297a4	72
6b691a5c	73	int EVP_PKEY_bits(EVP_PKEY *pkey)
58964a49	74	{
4d94ae00 BM	75	if (0)
4d94ae00 BM	76	return 0;
cf1b7d96	77	#ifndef OPENSSL_NO_RSA
4d94ae00	78	else if (pkey->type == EVP_PKEY_RSA)
58964a49	79	return(BN_num_bits(pkey->pkey.rsa->n));
58964a49	80	#endif
cf1b7d96	81	#ifndef OPENSSL_NO_DSA
4d94ae00	82	else if (pkey->type == EVP_PKEY_DSA)
58964a49	83	return(BN_num_bits(pkey->pkey.dsa->p));
4d94ae00	84	#endif
14a7cfb3 BM	85	#ifndef OPENSSL_NO_EC
14a7cfb3 BM	86	else if (pkey->type == EVP_PKEY_EC)
4d94ae00 BM	87	{
	88	BIGNUM *order = BN_new();
	89	int ret;
	90
	91	if (!order)
	92	{
	93	ERR_clear_error();
	94	return 0;
	95	}
14a7cfb3	96	if (!EC_GROUP_get_order(pkey->pkey.eckey->group, order, NULL))
4d94ae00 BM	97	{
	98	ERR_clear_error();
	99	return 0;
	100	}
	101
	102	ret = BN_num_bits(order);
	103	BN_free(order);
	104	return ret;
	105	}
58964a49 RE	106	#endif
	107	return(0);
	108	}
	109
6b691a5c	110	int EVP_PKEY_size(EVP_PKEY *pkey)
d02b48c6	111	{
92dad6cc BL	112	if (pkey == NULL)
92dad6cc BL	113	return(0);
93d9121a	114	#ifndef OPENSSL_NO_RSA
d02b48c6 RE	115	if (pkey->type == EVP_PKEY_RSA)
	116	return(RSA_size(pkey->pkey.rsa));
	117	else
	118	#endif
cf1b7d96	119	#ifndef OPENSSL_NO_DSA
d02b48c6 RE	120	if (pkey->type == EVP_PKEY_DSA)
	121	return(DSA_size(pkey->pkey.dsa));
	122	#endif
64376cd8	123	#ifndef OPENSSL_NO_ECDSA
14a7cfb3 BM	124	if (pkey->type == EVP_PKEY_EC)
14a7cfb3 BM	125	return(ECDSA_size(pkey->pkey.eckey));
4d94ae00 BM	126	#endif
4d94ae00 BM	127
d02b48c6 RE	128	return(0);
	129	}
	130
6b691a5c	131	int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
d02b48c6	132	{
cf1b7d96	133	#ifndef OPENSSL_NO_DSA
d02b48c6 RE	134	if (pkey->type == EVP_PKEY_DSA)
d02b48c6 RE	135	{
bc8a9f1f	136	int ret=pkey->save_parameters;
d02b48c6 RE	137
	138	if (mode >= 0)
	139	pkey->save_parameters=mode;
	140	return(ret);
	141	}
4d94ae00	142	#endif
5488bb61 BM	143	#ifndef OPENSSL_NO_EC
5488bb61 BM	144	if (pkey->type == EVP_PKEY_EC)
4d94ae00 BM	145	{
	146	int ret = pkey->save_parameters;
	147
	148	if (mode >= 0)
	149	pkey->save_parameters = mode;
	150	return(ret);
	151	}
d02b48c6 RE	152	#endif
	153	return(0);
	154	}
	155
a8b72844	156	int EVP_PKEY_copy_parameters(EVP_PKEY to, const EVP_PKEY from)
d02b48c6 RE	157	{
	158	if (to->type != from->type)
	159	{
	160	EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES);
58964a49	161	goto err;
d02b48c6 RE	162	}
	163
	164	if (EVP_PKEY_missing_parameters(from))
	165	{
657e60fa	166	EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS);
58964a49	167	goto err;
d02b48c6	168	}
cf1b7d96	169	#ifndef OPENSSL_NO_DSA
d02b48c6 RE	170	if (to->type == EVP_PKEY_DSA)
	171	{
	172	BIGNUM *a;
	173
	174	if ((a=BN_dup(from->pkey.dsa->p)) == NULL) goto err;
	175	if (to->pkey.dsa->p != NULL) BN_free(to->pkey.dsa->p);
	176	to->pkey.dsa->p=a;
	177
	178	if ((a=BN_dup(from->pkey.dsa->q)) == NULL) goto err;
	179	if (to->pkey.dsa->q != NULL) BN_free(to->pkey.dsa->q);
	180	to->pkey.dsa->q=a;
	181
	182	if ((a=BN_dup(from->pkey.dsa->g)) == NULL) goto err;
	183	if (to->pkey.dsa->g != NULL) BN_free(to->pkey.dsa->g);
	184	to->pkey.dsa->g=a;
	185	}
4d94ae00	186	#endif
14a7cfb3	187	#ifndef OPENSSL_NO_EC
5488bb61	188	if (to->type == EVP_PKEY_EC)
4d94ae00	189	{
14a7cfb3 BM	190	if (to->pkey.eckey->group != NULL)
	191	EC_GROUP_free(to->pkey.eckey->group);
	192	if ((to->pkey.eckey->group = EC_GROUP_new(
	193	EC_GROUP_method_of(from->pkey.eckey->group))) == NULL)
	194	goto err;
	195	if (!EC_GROUP_copy(to->pkey.eckey->group,
	196	from->pkey.eckey->group)) goto err;
4d94ae00	197	}
d02b48c6 RE	198	#endif
	199	return(1);
	200	err:
	201	return(0);
	202	}
	203
af0f0f3e	204	int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
d02b48c6	205	{
cf1b7d96	206	#ifndef OPENSSL_NO_DSA
d02b48c6 RE	207	if (pkey->type == EVP_PKEY_DSA)
	208	{
	209	DSA *dsa;
	210
	211	dsa=pkey->pkey.dsa;
	212	if ((dsa->p == NULL) \|\| (dsa->q == NULL) \|\| (dsa->g == NULL))
	213	return(1);
	214	}
	215	#endif
14a7cfb3 BM	216	#ifndef OPENSSL_NO_EC
14a7cfb3 BM	217	if (pkey->type == EVP_PKEY_EC)
4d94ae00	218	{
14a7cfb3	219	if (pkey->pkey.eckey->group == NULL)
4d94ae00 BM	220	return(1);
	221	}
	222	#endif
	223
d02b48c6 RE	224	return(0);
	225	}
	226
af0f0f3e	227	int EVP_PKEY_cmp_parameters(const EVP_PKEY a, const EVP_PKEY b)
58964a49	228	{
cf1b7d96	229	#ifndef OPENSSL_NO_DSA
58964a49 RE	230	if ((a->type == EVP_PKEY_DSA) && (b->type == EVP_PKEY_DSA))
	231	{
	232	if ( BN_cmp(a->pkey.dsa->p,b->pkey.dsa->p) \|\|
	233	BN_cmp(a->pkey.dsa->q,b->pkey.dsa->q) \|\|
	234	BN_cmp(a->pkey.dsa->g,b->pkey.dsa->g))
	235	return(0);
	236	else
	237	return(1);
	238	}
ada0e717 BM	239	#endif
	240	#ifndef OPENSSL_NO_EC
	241	if (a->type == EVP_PKEY_EC && b->type == EVP_PKEY_EC)
	242	{
	243	if (EC_GROUP_cmp(a->pkey.eckey->group, b->pkey.eckey->group, NULL))
	244	return 0;
	245	else
	246	return 1;
	247	}
58964a49 RE	248	#endif
	249	return(-1);
	250	}
	251
af0f0f3e	252	int EVP_PKEY_cmp(const EVP_PKEY a, const EVP_PKEY b)
e6526fbf RL	253	{
	254	if (a->type != b->type)
	255	return -1;
	256
7b36590b RL	257	if (EVP_PKEY_cmp_parameters(a, b) == 0)
7b36590b RL	258	return 0;
a8b72844	259
e6526fbf RL	260	switch (a->type)
	261	{
	262	#ifndef OPENSSL_NO_RSA
	263	case EVP_PKEY_RSA:
	264	if (BN_cmp(b->pkey.rsa->n,a->pkey.rsa->n) != 0
	265	\|\| BN_cmp(b->pkey.rsa->e,a->pkey.rsa->e) != 0)
	266	return 0;
	267	break;
	268	#endif
	269	#ifndef OPENSSL_NO_DSA
	270	case EVP_PKEY_DSA:
	271	if (BN_cmp(b->pkey.dsa->pub_key,a->pkey.dsa->pub_key) != 0)
	272	return 0;
	273	break;
	274	#endif
	275	#ifndef OPENSSL_NO_EC
	276	case EVP_PKEY_EC:
	277	{
	278	int r = EC_POINT_cmp(b->pkey.eckey->group,
	279	b->pkey.eckey->pub_key,a->pkey.eckey->pub_key,NULL);
	280	if (r != 0)
	281	{
	282	if (r == 1)
	283	return 0;
	284	else
	285	return -2;
	286	}
	287	}
	288	break;
	289	#endif
	290	#ifndef OPENSSL_NO_DH
	291	case EVP_PKEY_DH:
	292	return -2;
	293	#endif
	294	default:
	295	return -2;
	296	}
	297
	298	return 1;
	299	}
	300
6b691a5c	301	EVP_PKEY *EVP_PKEY_new(void)
d02b48c6 RE	302	{
	303	EVP_PKEY *ret;
	304
26a3a48d	305	ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY));
d02b48c6 RE	306	if (ret == NULL)
	307	{
	308	EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE);
	309	return(NULL);
	310	}
	311	ret->type=EVP_PKEY_NONE;
	312	ret->references=1;
	313	ret->pkey.ptr=NULL;
	314	ret->attributes=NULL;
	315	ret->save_parameters=1;
	316	return(ret);
	317	}
	318
6b691a5c	319	int EVP_PKEY_assign(EVP_PKEY pkey, int type, char key)
d02b48c6 RE	320	{
	321	if (pkey == NULL) return(0);
	322	if (pkey->pkey.ptr != NULL)
	323	EVP_PKEY_free_it(pkey);
	324	pkey->type=EVP_PKEY_type(type);
	325	pkey->save_type=type;
	326	pkey->pkey.ptr=key;
7f5b6f0f	327	return(key != NULL);
d02b48c6 RE	328	}
d02b48c6 RE	329
cf1b7d96	330	#ifndef OPENSSL_NO_RSA
c7cb16a8	331	int EVP_PKEY_set1_RSA(EVP_PKEY pkey, RSA key)
52664f50	332	{
6d3724d3	333	int ret = EVP_PKEY_assign_RSA(pkey, key);
78435364	334	if(ret)
6ac4e8bd	335	RSA_up_ref(key);
6d3724d3	336	return ret;
52664f50 DSH	337	}
52664f50 DSH	338
c7cb16a8	339	RSA EVP_PKEY_get1_RSA(EVP_PKEY pkey)
f769ce3e DSH	340	{
f769ce3e DSH	341	if(pkey->type != EVP_PKEY_RSA) {
c7cb16a8	342	EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
f769ce3e DSH	343	return NULL;
f769ce3e DSH	344	}
6ac4e8bd	345	RSA_up_ref(pkey->pkey.rsa);
f769ce3e DSH	346	return pkey->pkey.rsa;
	347	}
	348	#endif
	349
cf1b7d96	350	#ifndef OPENSSL_NO_DSA
c7cb16a8	351	int EVP_PKEY_set1_DSA(EVP_PKEY pkey, DSA key)
52664f50	352	{
6d3724d3	353	int ret = EVP_PKEY_assign_DSA(pkey, key);
78435364	354	if(ret)
6ac4e8bd	355	DSA_up_ref(key);
6d3724d3	356	return ret;
52664f50 DSH	357	}
52664f50 DSH	358
c7cb16a8	359	DSA EVP_PKEY_get1_DSA(EVP_PKEY pkey)
f769ce3e DSH	360	{
f769ce3e DSH	361	if(pkey->type != EVP_PKEY_DSA) {
c7cb16a8	362	EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
f769ce3e DSH	363	return NULL;
f769ce3e DSH	364	}
6ac4e8bd	365	DSA_up_ref(pkey->pkey.dsa);
f769ce3e DSH	366	return pkey->pkey.dsa;
	367	}
	368	#endif
	369
14a7cfb3	370	#ifndef OPENSSL_NO_EC
4d94ae00	371
14a7cfb3	372	int EVP_PKEY_set1_EC_KEY(EVP_PKEY pkey, EC_KEY key)
4d94ae00	373	{
14a7cfb3 BM	374	int ret = EVP_PKEY_assign_EC_KEY(pkey,key);
14a7cfb3 BM	375	if (ret) CRYPTO_add(&key->references, 1, CRYPTO_LOCK_EC);
4d94ae00 BM	376	return ret;
	377	}
	378
14a7cfb3	379	EC_KEY EVP_PKEY_get1_EC_KEY(EVP_PKEY pkey)
4d94ae00	380	{
14a7cfb3	381	if (pkey->type != EVP_PKEY_EC)
4d94ae00	382	{
14a7cfb3	383	EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
4d94ae00 BM	384	return NULL;
4d94ae00 BM	385	}
14a7cfb3 BM	386	CRYPTO_add(&pkey->pkey.eckey->references, 1, CRYPTO_LOCK_EC);
14a7cfb3 BM	387	return pkey->pkey.eckey;
4d94ae00 BM	388	}
	389	#endif
	390
	391
cf1b7d96	392	#ifndef OPENSSL_NO_DH
52664f50	393
c7cb16a8	394	int EVP_PKEY_set1_DH(EVP_PKEY pkey, DH key)
52664f50	395	{
6d3724d3	396	int ret = EVP_PKEY_assign_DH(pkey, key);
78435364	397	if(ret)
e815d301	398	DH_up_ref(key);
6d3724d3	399	return ret;
52664f50 DSH	400	}
52664f50 DSH	401
c7cb16a8	402	DH EVP_PKEY_get1_DH(EVP_PKEY pkey)
f769ce3e DSH	403	{
f769ce3e DSH	404	if(pkey->type != EVP_PKEY_DH) {
c7cb16a8	405	EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY);
f769ce3e DSH	406	return NULL;
f769ce3e DSH	407	}
e815d301	408	DH_up_ref(pkey->pkey.dh);
f769ce3e DSH	409	return pkey->pkey.dh;
	410	}
	411	#endif
	412
6b691a5c	413	int EVP_PKEY_type(int type)
d02b48c6 RE	414	{
	415	switch (type)
	416	{
	417	case EVP_PKEY_RSA:
	418	case EVP_PKEY_RSA2:
	419	return(EVP_PKEY_RSA);
	420	case EVP_PKEY_DSA:
58964a49	421	case EVP_PKEY_DSA1:
d02b48c6 RE	422	case EVP_PKEY_DSA2:
d02b48c6 RE	423	case EVP_PKEY_DSA3:
58964a49	424	case EVP_PKEY_DSA4:
d02b48c6 RE	425	return(EVP_PKEY_DSA);
	426	case EVP_PKEY_DH:
	427	return(EVP_PKEY_DH);
14a7cfb3 BM	428	case EVP_PKEY_EC:
14a7cfb3 BM	429	return(EVP_PKEY_EC);
d02b48c6 RE	430	default:
	431	return(NID_undef);
	432	}
	433	}
	434
6b691a5c	435	void EVP_PKEY_free(EVP_PKEY *x)
d02b48c6 RE	436	{
	437	int i;
	438
	439	if (x == NULL) return;
	440
	441	i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);
58964a49 RE	442	#ifdef REF_PRINT
	443	REF_PRINT("EVP_PKEY",x);
	444	#endif
d02b48c6 RE	445	if (i > 0) return;
	446	#ifdef REF_CHECK
	447	if (i < 0)
	448	{
	449	fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
	450	abort();
	451	}
	452	#endif
	453	EVP_PKEY_free_it(x);
26a3a48d	454	OPENSSL_free(x);
d02b48c6 RE	455	}
d02b48c6 RE	456
6b691a5c	457	static void EVP_PKEY_free_it(EVP_PKEY *x)
d02b48c6 RE	458	{
	459	switch (x->type)
	460	{
cf1b7d96	461	#ifndef OPENSSL_NO_RSA
d02b48c6 RE	462	case EVP_PKEY_RSA:
	463	case EVP_PKEY_RSA2:
	464	RSA_free(x->pkey.rsa);
	465	break;
	466	#endif
cf1b7d96	467	#ifndef OPENSSL_NO_DSA
d02b48c6 RE	468	case EVP_PKEY_DSA:
	469	case EVP_PKEY_DSA2:
	470	case EVP_PKEY_DSA3:
58964a49	471	case EVP_PKEY_DSA4:
d02b48c6 RE	472	DSA_free(x->pkey.dsa);
	473	break;
	474	#endif
14a7cfb3 BM	475	#ifndef OPENSSL_NO_EC
	476	case EVP_PKEY_EC:
	477	EC_KEY_free(x->pkey.eckey);
4d94ae00 BM	478	break;
4d94ae00 BM	479	#endif
cf1b7d96	480	#ifndef OPENSSL_NO_DH
d02b48c6 RE	481	case EVP_PKEY_DH:
	482	DH_free(x->pkey.dh);
	483	break;
	484	#endif
	485	}
	486	}
	487