[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/objects.h>
#include <openssl/evp.h>
#include <openssl/asn1_mac.h>
#include <openssl/x509.h>

static void EVP_PKEY_free_it(EVP_PKEY *x);

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

int EVP_PKEY_copy_parameters(EVP_PKEY *to, 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
	return(1);
err:
	return(0);
	}

int EVP_PKEY_missing_parameters(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
	return(0);
	}

int EVP_PKEY_cmp_parameters(EVP_PKEY *a, 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
	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_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);
	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_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"
ec577822 BM	61	#include <openssl/objects.h>
	62	#include <openssl/evp.h>
	63	#include <openssl/asn1_mac.h>
	64	#include <openssl/x509.h>
d02b48c6	65
d02b48c6	66	static void EVP_PKEY_free_it(EVP_PKEY *x);
bb2297a4	67
6b691a5c	68	int EVP_PKEY_bits(EVP_PKEY *pkey)
58964a49	69	{
cf1b7d96	70	#ifndef OPENSSL_NO_RSA
58964a49 RE	71	if (pkey->type == EVP_PKEY_RSA)
	72	return(BN_num_bits(pkey->pkey.rsa->n));
	73	else
	74	#endif
cf1b7d96	75	#ifndef OPENSSL_NO_DSA
58964a49 RE	76	if (pkey->type == EVP_PKEY_DSA)
	77	return(BN_num_bits(pkey->pkey.dsa->p));
	78	#endif
	79	return(0);
	80	}
	81
6b691a5c	82	int EVP_PKEY_size(EVP_PKEY *pkey)
d02b48c6	83	{
92dad6cc BL	84	if (pkey == NULL)
92dad6cc BL	85	return(0);
93d9121a	86	#ifndef OPENSSL_NO_RSA
d02b48c6 RE	87	if (pkey->type == EVP_PKEY_RSA)
	88	return(RSA_size(pkey->pkey.rsa));
	89	else
	90	#endif
cf1b7d96	91	#ifndef OPENSSL_NO_DSA
d02b48c6 RE	92	if (pkey->type == EVP_PKEY_DSA)
	93	return(DSA_size(pkey->pkey.dsa));
	94	#endif
	95	return(0);
	96	}
	97
6b691a5c	98	int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
d02b48c6	99	{
cf1b7d96	100	#ifndef OPENSSL_NO_DSA
d02b48c6 RE	101	if (pkey->type == EVP_PKEY_DSA)
d02b48c6 RE	102	{
bc8a9f1f	103	int ret=pkey->save_parameters;
d02b48c6 RE	104
	105	if (mode >= 0)
	106	pkey->save_parameters=mode;
	107	return(ret);
	108	}
	109	#endif
	110	return(0);
	111	}
	112
6b691a5c	113	int EVP_PKEY_copy_parameters(EVP_PKEY to, EVP_PKEY from)
d02b48c6 RE	114	{
	115	if (to->type != from->type)
	116	{
	117	EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES);
58964a49	118	goto err;
d02b48c6 RE	119	}
	120
	121	if (EVP_PKEY_missing_parameters(from))
	122	{
657e60fa	123	EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS);
58964a49	124	goto err;
d02b48c6	125	}
cf1b7d96	126	#ifndef OPENSSL_NO_DSA
d02b48c6 RE	127	if (to->type == EVP_PKEY_DSA)
	128	{
	129	BIGNUM *a;
	130
	131	if ((a=BN_dup(from->pkey.dsa->p)) == NULL) goto err;
	132	if (to->pkey.dsa->p != NULL) BN_free(to->pkey.dsa->p);
	133	to->pkey.dsa->p=a;
	134
	135	if ((a=BN_dup(from->pkey.dsa->q)) == NULL) goto err;
	136	if (to->pkey.dsa->q != NULL) BN_free(to->pkey.dsa->q);
	137	to->pkey.dsa->q=a;
	138
	139	if ((a=BN_dup(from->pkey.dsa->g)) == NULL) goto err;
	140	if (to->pkey.dsa->g != NULL) BN_free(to->pkey.dsa->g);
	141	to->pkey.dsa->g=a;
	142	}
	143	#endif
	144	return(1);
	145	err:
	146	return(0);
	147	}
	148
6b691a5c	149	int EVP_PKEY_missing_parameters(EVP_PKEY *pkey)
d02b48c6	150	{
cf1b7d96	151	#ifndef OPENSSL_NO_DSA
d02b48c6 RE	152	if (pkey->type == EVP_PKEY_DSA)
	153	{
	154	DSA *dsa;
	155
	156	dsa=pkey->pkey.dsa;
	157	if ((dsa->p == NULL) \|\| (dsa->q == NULL) \|\| (dsa->g == NULL))
	158	return(1);
	159	}
	160	#endif
	161	return(0);
	162	}
	163
6b691a5c	164	int EVP_PKEY_cmp_parameters(EVP_PKEY a, EVP_PKEY b)
58964a49	165	{
cf1b7d96	166	#ifndef OPENSSL_NO_DSA
58964a49 RE	167	if ((a->type == EVP_PKEY_DSA) && (b->type == EVP_PKEY_DSA))
	168	{
	169	if ( BN_cmp(a->pkey.dsa->p,b->pkey.dsa->p) \|\|
	170	BN_cmp(a->pkey.dsa->q,b->pkey.dsa->q) \|\|
	171	BN_cmp(a->pkey.dsa->g,b->pkey.dsa->g))
	172	return(0);
	173	else
	174	return(1);
	175	}
	176	#endif
	177	return(-1);
	178	}
	179
6b691a5c	180	EVP_PKEY *EVP_PKEY_new(void)
d02b48c6 RE	181	{
	182	EVP_PKEY *ret;
	183
26a3a48d	184	ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY));
d02b48c6 RE	185	if (ret == NULL)
	186	{
	187	EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE);
	188	return(NULL);
	189	}
	190	ret->type=EVP_PKEY_NONE;
	191	ret->references=1;
	192	ret->pkey.ptr=NULL;
	193	ret->attributes=NULL;
	194	ret->save_parameters=1;
	195	return(ret);
	196	}
	197
6b691a5c	198	int EVP_PKEY_assign(EVP_PKEY pkey, int type, char key)
d02b48c6 RE	199	{
	200	if (pkey == NULL) return(0);
	201	if (pkey->pkey.ptr != NULL)
	202	EVP_PKEY_free_it(pkey);
	203	pkey->type=EVP_PKEY_type(type);
	204	pkey->save_type=type;
	205	pkey->pkey.ptr=key;
7f5b6f0f	206	return(key != NULL);
d02b48c6 RE	207	}
d02b48c6 RE	208
cf1b7d96	209	#ifndef OPENSSL_NO_RSA
c7cb16a8	210	int EVP_PKEY_set1_RSA(EVP_PKEY pkey, RSA key)
52664f50	211	{
6d3724d3	212	int ret = EVP_PKEY_assign_RSA(pkey, key);
78435364	213	if(ret)
6ac4e8bd	214	RSA_up_ref(key);
6d3724d3	215	return ret;
52664f50 DSH	216	}
52664f50 DSH	217
c7cb16a8	218	RSA EVP_PKEY_get1_RSA(EVP_PKEY pkey)
f769ce3e DSH	219	{
f769ce3e DSH	220	if(pkey->type != EVP_PKEY_RSA) {
c7cb16a8	221	EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
f769ce3e DSH	222	return NULL;
f769ce3e DSH	223	}
6ac4e8bd	224	RSA_up_ref(pkey->pkey.rsa);
f769ce3e DSH	225	return pkey->pkey.rsa;
	226	}
	227	#endif
	228
cf1b7d96	229	#ifndef OPENSSL_NO_DSA
c7cb16a8	230	int EVP_PKEY_set1_DSA(EVP_PKEY pkey, DSA key)
52664f50	231	{
6d3724d3	232	int ret = EVP_PKEY_assign_DSA(pkey, key);
78435364	233	if(ret)
6ac4e8bd	234	DSA_up_ref(key);
6d3724d3	235	return ret;
52664f50 DSH	236	}
52664f50 DSH	237
c7cb16a8	238	DSA EVP_PKEY_get1_DSA(EVP_PKEY pkey)
f769ce3e DSH	239	{
f769ce3e DSH	240	if(pkey->type != EVP_PKEY_DSA) {
c7cb16a8	241	EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
f769ce3e DSH	242	return NULL;
f769ce3e DSH	243	}
6ac4e8bd	244	DSA_up_ref(pkey->pkey.dsa);
f769ce3e DSH	245	return pkey->pkey.dsa;
	246	}
	247	#endif
	248
cf1b7d96	249	#ifndef OPENSSL_NO_DH
52664f50	250
c7cb16a8	251	int EVP_PKEY_set1_DH(EVP_PKEY pkey, DH key)
52664f50	252	{
6d3724d3	253	int ret = EVP_PKEY_assign_DH(pkey, key);
78435364	254	if(ret)
e815d301	255	DH_up_ref(key);
6d3724d3	256	return ret;
52664f50 DSH	257	}
52664f50 DSH	258
c7cb16a8	259	DH EVP_PKEY_get1_DH(EVP_PKEY pkey)
f769ce3e DSH	260	{
f769ce3e DSH	261	if(pkey->type != EVP_PKEY_DH) {
c7cb16a8	262	EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY);
f769ce3e DSH	263	return NULL;
f769ce3e DSH	264	}
e815d301	265	DH_up_ref(pkey->pkey.dh);
f769ce3e DSH	266	return pkey->pkey.dh;
	267	}
	268	#endif
	269
6b691a5c	270	int EVP_PKEY_type(int type)
d02b48c6 RE	271	{
	272	switch (type)
	273	{
	274	case EVP_PKEY_RSA:
	275	case EVP_PKEY_RSA2:
	276	return(EVP_PKEY_RSA);
	277	case EVP_PKEY_DSA:
58964a49	278	case EVP_PKEY_DSA1:
d02b48c6 RE	279	case EVP_PKEY_DSA2:
d02b48c6 RE	280	case EVP_PKEY_DSA3:
58964a49	281	case EVP_PKEY_DSA4:
d02b48c6 RE	282	return(EVP_PKEY_DSA);
	283	case EVP_PKEY_DH:
	284	return(EVP_PKEY_DH);
	285	default:
	286	return(NID_undef);
	287	}
	288	}
	289
6b691a5c	290	void EVP_PKEY_free(EVP_PKEY *x)
d02b48c6 RE	291	{
	292	int i;
	293
	294	if (x == NULL) return;
	295
	296	i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);
58964a49 RE	297	#ifdef REF_PRINT
	298	REF_PRINT("EVP_PKEY",x);
	299	#endif
d02b48c6 RE	300	if (i > 0) return;
	301	#ifdef REF_CHECK
	302	if (i < 0)
	303	{
	304	fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
	305	abort();
	306	}
	307	#endif
	308	EVP_PKEY_free_it(x);
26a3a48d	309	OPENSSL_free(x);
d02b48c6 RE	310	}
d02b48c6 RE	311
6b691a5c	312	static void EVP_PKEY_free_it(EVP_PKEY *x)
d02b48c6 RE	313	{
	314	switch (x->type)
	315	{
cf1b7d96	316	#ifndef OPENSSL_NO_RSA
d02b48c6 RE	317	case EVP_PKEY_RSA:
	318	case EVP_PKEY_RSA2:
	319	RSA_free(x->pkey.rsa);
	320	break;
	321	#endif
cf1b7d96	322	#ifndef OPENSSL_NO_DSA
d02b48c6 RE	323	case EVP_PKEY_DSA:
	324	case EVP_PKEY_DSA2:
	325	case EVP_PKEY_DSA3:
58964a49	326	case EVP_PKEY_DSA4:
d02b48c6 RE	327	DSA_free(x->pkey.dsa);
	328	break;
	329	#endif
cf1b7d96	330	#ifndef OPENSSL_NO_DH
d02b48c6 RE	331	case EVP_PKEY_DH:
	332	DH_free(x->pkey.dh);
	333	break;
	334	#endif
	335	}
	336	}
	337