[thirdparty/openssl.git] / crypto / asn1 / x_pubkey.c

/* crypto/asn1/x_pubkey.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/asn1t.h>
#include <openssl/x509.h>

/* Minor tweak to operation: free up EVP_PKEY */
static int pubkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
	{
	if (operation == ASN1_OP_FREE_POST)
		{
		X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval;
		EVP_PKEY_free(pubkey->pkey);
		}
	return 1;
	}

ASN1_SEQUENCE_cb(X509_PUBKEY, pubkey_cb) = {
	ASN1_SIMPLE(X509_PUBKEY, algor, X509_ALGOR),
	ASN1_SIMPLE(X509_PUBKEY, public_key, ASN1_BIT_STRING)
} ASN1_SEQUENCE_END_cb(X509_PUBKEY, X509_PUBKEY)

IMPLEMENT_ASN1_FUNCTIONS(X509_PUBKEY)

int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey)
	{
	int ok=0;
	X509_PUBKEY *pk;
	X509_ALGOR *a;
	ASN1_OBJECT *o;
	unsigned char *s,*p;
	int i;

	if (x == NULL) return(0);

	if ((pk=X509_PUBKEY_new()) == NULL) goto err;
	a=pk->algor;

	/* set the algorithm id */
	if ((o=OBJ_nid2obj(pkey->type)) == NULL) goto err;
	ASN1_OBJECT_free(a->algorithm);
	a->algorithm=o;

	/* Set the parameter list */
	if (!pkey->save_parameters || (pkey->type == EVP_PKEY_RSA))
		{
		if ((a->parameter == NULL) ||
			(a->parameter->type != V_ASN1_NULL))
			{
			ASN1_TYPE_free(a->parameter);
			a->parameter=ASN1_TYPE_new();
			a->parameter->type=V_ASN1_NULL;
			}
		}
#ifndef OPENSSL_NO_DSA
	else if (pkey->type == EVP_PKEY_DSA)
		{
		unsigned char *pp;
		DSA *dsa;
		
		dsa=pkey->pkey.dsa;
		dsa->write_params=0;
		ASN1_TYPE_free(a->parameter);
		i=i2d_DSAparams(dsa,NULL);
		p=(unsigned char *)OPENSSL_malloc(i);
		pp=p;
		i2d_DSAparams(dsa,&pp);
		a->parameter=ASN1_TYPE_new();
		a->parameter->type=V_ASN1_SEQUENCE;
		a->parameter->value.sequence=ASN1_STRING_new();
		ASN1_STRING_set(a->parameter->value.sequence,p,i);
		OPENSSL_free(p);
		}
#endif
#ifndef OPENSSL_NO_ECDSA
	else if (pkey->type == EVP_PKEY_ECDSA)
		{
		unsigned char *pp;
		ECDSA *ecdsa;
		
		ecdsa = pkey->pkey.ecdsa;
		ecdsa->write_params=0;
		ASN1_TYPE_free(a->parameter);
		if ((i = i2d_ECDSAParameters(ecdsa, NULL)) == 0)
			{
			X509err(X509_F_X509_PUBKEY_SET, ERR_R_ECDSA_LIB);
			goto err;
			}
		if ((p = (unsigned char *) OPENSSL_malloc(i)) == NULL)
			{
			X509err(X509_F_X509_PUBKEY_SET, ERR_R_MALLOC_FAILURE);
			goto err;
			}	
		pp = p;
		if (!i2d_ECDSAParameters(ecdsa, &pp))
			{
			X509err(X509_F_X509_PUBKEY_SET, ERR_R_ECDSA_LIB);
			OPENSSL_free(p);
			goto err;
			}
		if ((a->parameter = ASN1_TYPE_new()) == NULL)
			{
			X509err(X509_F_X509_PUBKEY_SET, ERR_R_ASN1_LIB);
			OPENSSL_free(p);
			goto err;
			}
		a->parameter->type = V_ASN1_SEQUENCE;
		if ((a->parameter->value.sequence = ASN1_STRING_new()) == NULL)
			{
			X509err(X509_F_X509_PUBKEY_SET, ERR_R_ASN1_LIB);
			OPENSSL_free(p);
			goto err;
			}
		ASN1_STRING_set(a->parameter->value.sequence, p, i);
		OPENSSL_free(p);
		}
#endif
	else if (1)
		{
		X509err(X509_F_X509_PUBKEY_SET,X509_R_UNSUPPORTED_ALGORITHM);
		goto err;
		}

	if ((i=i2d_PublicKey(pkey,NULL)) <= 0) goto err;
	if ((s=(unsigned char *)OPENSSL_malloc(i+1)) == NULL) goto err;
	p=s;
	i2d_PublicKey(pkey,&p);
	if (!M_ASN1_BIT_STRING_set(pk->public_key,s,i)) goto err;
	/* Set number of unused bits to zero */
	pk->public_key->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07);
	pk->public_key->flags|=ASN1_STRING_FLAG_BITS_LEFT;

	OPENSSL_free(s);

#if 0
	CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
	pk->pkey=pkey;
#endif

	if (*x != NULL)
		X509_PUBKEY_free(*x);

	*x=pk;
	pk=NULL;

	ok=1;
err:
	if (pk != NULL) X509_PUBKEY_free(pk);
	return(ok);
	}

EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key)
	{
	EVP_PKEY *ret=NULL;
	long j;
	int type;
	unsigned char *p;
#ifndef OPENSSL_NO_DSA
	const unsigned char *cp;
	X509_ALGOR *a;
#endif

	if (key == NULL) goto err;

	if (key->pkey != NULL)
		{
		CRYPTO_add(&key->pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
		return(key->pkey);
		}

	if (key->public_key == NULL) goto err;

	type=OBJ_obj2nid(key->algor->algorithm);
	if ((ret = EVP_PKEY_new()) == NULL)
		{
		X509err(X509_F_X509_PUBKEY_GET, ERR_R_MALLOC_FAILURE);
		goto err;
		}
	ret->type = EVP_PKEY_type(type);

	/* the parameters must be extracted before the public key (ECDSA!) */
	
	a=key->algor;

	if (0)
		;
#ifndef OPENSSL_NO_DSA
	else if (ret->type == EVP_PKEY_DSA)
		{
		if (a->parameter && (a->parameter->type == V_ASN1_SEQUENCE))
			{
			if ((ret->pkey.dsa = DSA_new()) == NULL)
				{
				X509err(X509_F_X509_PUBKEY_GET, ERR_R_MALLOC_FAILURE);
				goto err;
				}
			ret->pkey.dsa->write_params=0;
			cp=p=a->parameter->value.sequence->data;
			j=a->parameter->value.sequence->length;
			if (!d2i_DSAparams(&ret->pkey.dsa, &cp, (long)j))
				goto err;
			}
		ret->save_parameters=1;
		}
#endif
#ifndef OPENSSL_NO_ECDSA
	else if (ret->type == EVP_PKEY_ECDSA)
		{
		if (a->parameter && (a->parameter->type == V_ASN1_SEQUENCE))
			{
			if ((ret->pkey.ecdsa= ECDSA_new()) == NULL)
				{
				X509err(X509_F_X509_PUBKEY_GET, ERR_R_MALLOC_FAILURE);
				goto err;
				}
			ret->pkey.ecdsa->write_params = 0;
			cp = p = a->parameter->value.sequence->data;
			j = a->parameter->value.sequence->length;
			if (!d2i_ECDSAParameters(&ret->pkey.ecdsa, &cp, (long)j))
				{
				X509err(X509_F_X509_PUBKEY_GET, ERR_R_ECDSA_LIB);
				goto err;
				}
			}
		ret->save_parameters = 1;
		}
#endif

	p=key->public_key->data;
        j=key->public_key->length;
        if ((ret = d2i_PublicKey(type, &ret, &p, (long)j)) == NULL)
		{
		X509err(X509_F_X509_PUBKEY_GET, X509_R_ERR_ASN1_LIB);
		goto err;
		}

	key->pkey = ret;
	CRYPTO_add(&ret->references, 1, CRYPTO_LOCK_EVP_PKEY);
	return(ret);
err:
	if (ret != NULL)
		EVP_PKEY_free(ret);
	return(NULL);
	}

/* Now two pseudo ASN1 routines that take an EVP_PKEY structure
 * and encode or decode as X509_PUBKEY
 */

EVP_PKEY *d2i_PUBKEY(EVP_PKEY **a, unsigned char **pp,
	     long length)
	{
	X509_PUBKEY *xpk;
	EVP_PKEY *pktmp;
	xpk = d2i_X509_PUBKEY(NULL, pp, length);
	if(!xpk) return NULL;
	pktmp = X509_PUBKEY_get(xpk);
	X509_PUBKEY_free(xpk);
	if(!pktmp) return NULL;
	if(a)
		{
		EVP_PKEY_free(*a);
		*a = pktmp;
		}
	return pktmp;
	}

int i2d_PUBKEY(EVP_PKEY *a, unsigned char **pp)
	{
	X509_PUBKEY *xpk=NULL;
	int ret;
	if(!a) return 0;
	if(!X509_PUBKEY_set(&xpk, a)) return 0;
	ret = i2d_X509_PUBKEY(xpk, pp);
	X509_PUBKEY_free(xpk);
	return ret;
	}

/* The following are equivalents but which return RSA and DSA
 * keys
 */
#ifndef OPENSSL_NO_RSA
RSA *d2i_RSA_PUBKEY(RSA **a, unsigned char **pp,
	     long length)
	{
	EVP_PKEY *pkey;
	RSA *key;
	unsigned char *q;
	q = *pp;
	pkey = d2i_PUBKEY(NULL, &q, length);
	if (!pkey) return NULL;
	key = EVP_PKEY_get1_RSA(pkey);
	EVP_PKEY_free(pkey);
	if (!key) return NULL;
	*pp = q;
	if (a)
		{
		RSA_free(*a);
		*a = key;
		}
	return key;
	}

int i2d_RSA_PUBKEY(RSA *a, unsigned char **pp)
	{
	EVP_PKEY *pktmp;
	int ret;
	if (!a) return 0;
	pktmp = EVP_PKEY_new();
	if (!pktmp)
		{
		ASN1err(ASN1_F_I2D_RSA_PUBKEY, ERR_R_MALLOC_FAILURE);
		return 0;
		}
	EVP_PKEY_set1_RSA(pktmp, a);
	ret = i2d_PUBKEY(pktmp, pp);
	EVP_PKEY_free(pktmp);
	return ret;
	}
#endif

#ifndef OPENSSL_NO_DSA
DSA *d2i_DSA_PUBKEY(DSA **a, unsigned char **pp,
	     long length)
	{
	EVP_PKEY *pkey;
	DSA *key;
	unsigned char *q;
	q = *pp;
	pkey = d2i_PUBKEY(NULL, &q, length);
	if (!pkey) return NULL;
	key = EVP_PKEY_get1_DSA(pkey);
	EVP_PKEY_free(pkey);
	if (!key) return NULL;
	*pp = q;
	if (a)
		{
		DSA_free(*a);
		*a = key;
		}
	return key;
	}

int i2d_DSA_PUBKEY(DSA *a, unsigned char **pp)
	{
	EVP_PKEY *pktmp;
	int ret;
	if(!a) return 0;
	pktmp = EVP_PKEY_new();
	if(!pktmp)
		{
		ASN1err(ASN1_F_I2D_DSA_PUBKEY, ERR_R_MALLOC_FAILURE);
		return 0;
		}
	EVP_PKEY_set1_DSA(pktmp, a);
	ret = i2d_PUBKEY(pktmp, pp);
	EVP_PKEY_free(pktmp);
	return ret;
	}
#endif

#ifndef OPENSSL_NO_ECDSA
ECDSA *d2i_ECDSA_PUBKEY(ECDSA **a, unsigned char **pp, long length)
	{
	EVP_PKEY *pkey;
	ECDSA *key;
	unsigned char *q;
	q = *pp;
	pkey = d2i_PUBKEY(NULL, &q, length);
	if (!pkey) return(NULL);
	key = EVP_PKEY_get1_ECDSA(pkey);
	EVP_PKEY_free(pkey);
	if (!key)  return(NULL);
	*pp = q;
	if (a)
		{
		ECDSA_free(*a);
		*a = key;
		}
	return(key);
	}

int i2d_ECDSA_PUBKEY(ECDSA *a, unsigned char **pp)
	{
	EVP_PKEY *pktmp;
	int ret;
	if (!a)	return(0);
	if ((pktmp = EVP_PKEY_new()) == NULL)
		{
		ASN1err(ASN1_F_I2D_ECDSA_PUBKEY, ERR_R_MALLOC_FAILURE);
		return(0);
		}
	EVP_PKEY_set1_ECDSA(pktmp, a);
	ret = i2d_PUBKEY(pktmp, pp);
	EVP_PKEY_free(pktmp);
	return(ret);
	}
#endif
Commit	Line	Data
d02b48c6	1	/* crypto/asn1/x_pubkey.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"
9d6b1ce6	61	#include <openssl/asn1t.h>
f0e8ae72	62	#include <openssl/x509.h>
d02b48c6	63
9d6b1ce6 DSH	64	/* Minor tweak to operation: free up EVP_PKEY */
9d6b1ce6 DSH	65	static int pubkey_cb(int operation, ASN1_VALUE *pval, const ASN1_ITEM it)
4d94ae00 BM	66	{
	67	if (operation == ASN1_OP_FREE_POST)
	68	{
9d6b1ce6 DSH	69	X509_PUBKEY pubkey = (X509_PUBKEY )*pval;
9d6b1ce6 DSH	70	EVP_PKEY_free(pubkey->pkey);
4d94ae00	71	}
9d6b1ce6	72	return 1;
4d94ae00	73	}
d02b48c6	74
9d6b1ce6 DSH	75	ASN1_SEQUENCE_cb(X509_PUBKEY, pubkey_cb) = {
	76	ASN1_SIMPLE(X509_PUBKEY, algor, X509_ALGOR),
	77	ASN1_SIMPLE(X509_PUBKEY, public_key, ASN1_BIT_STRING)
d339187b	78	} ASN1_SEQUENCE_END_cb(X509_PUBKEY, X509_PUBKEY)
d02b48c6	79
9d6b1ce6	80	IMPLEMENT_ASN1_FUNCTIONS(X509_PUBKEY)
d02b48c6	81
6b691a5c	82	int X509_PUBKEY_set(X509_PUBKEY *x, EVP_PKEY pkey)
d02b48c6 RE	83	{
	84	int ok=0;
	85	X509_PUBKEY *pk;
	86	X509_ALGOR *a;
	87	ASN1_OBJECT *o;
	88	unsigned char s,p;
	89	int i;
	90
	91	if (x == NULL) return(0);
	92
	93	if ((pk=X509_PUBKEY_new()) == NULL) goto err;
	94	a=pk->algor;
	95
	96	/* set the algorithm id */
	97	if ((o=OBJ_nid2obj(pkey->type)) == NULL) goto err;
	98	ASN1_OBJECT_free(a->algorithm);
	99	a->algorithm=o;
	100
	101	/* Set the parameter list */
	102	if (!pkey->save_parameters \|\| (pkey->type == EVP_PKEY_RSA))
	103	{
	104	if ((a->parameter == NULL) \|\|
	105	(a->parameter->type != V_ASN1_NULL))
	106	{
	107	ASN1_TYPE_free(a->parameter);
	108	a->parameter=ASN1_TYPE_new();
	109	a->parameter->type=V_ASN1_NULL;
	110	}
	111	}
cf1b7d96	112	#ifndef OPENSSL_NO_DSA
4d94ae00	113	else if (pkey->type == EVP_PKEY_DSA)
d02b48c6 RE	114	{
	115	unsigned char *pp;
	116	DSA *dsa;
4d94ae00	117
d02b48c6 RE	118	dsa=pkey->pkey.dsa;
	119	dsa->write_params=0;
	120	ASN1_TYPE_free(a->parameter);
	121	i=i2d_DSAparams(dsa,NULL);
26a3a48d	122	p=(unsigned char *)OPENSSL_malloc(i);
d02b48c6 RE	123	pp=p;
	124	i2d_DSAparams(dsa,&pp);
	125	a->parameter=ASN1_TYPE_new();
	126	a->parameter->type=V_ASN1_SEQUENCE;
	127	a->parameter->value.sequence=ASN1_STRING_new();
	128	ASN1_STRING_set(a->parameter->value.sequence,p,i);
26a3a48d	129	OPENSSL_free(p);
d02b48c6	130	}
d02b48c6	131	#endif
4d94ae00 BM	132	#ifndef OPENSSL_NO_ECDSA
	133	else if (pkey->type == EVP_PKEY_ECDSA)
	134	{
	135	unsigned char *pp;
	136	ECDSA *ecdsa;
	137
	138	ecdsa = pkey->pkey.ecdsa;
	139	ecdsa->write_params=0;
	140	ASN1_TYPE_free(a->parameter);
	141	if ((i = i2d_ECDSAParameters(ecdsa, NULL)) == 0)
	142	{
	143	X509err(X509_F_X509_PUBKEY_SET, ERR_R_ECDSA_LIB);
	144	goto err;
	145	}
	146	if ((p = (unsigned char *) OPENSSL_malloc(i)) == NULL)
	147	{
	148	X509err(X509_F_X509_PUBKEY_SET, ERR_R_MALLOC_FAILURE);
	149	goto err;
	150	}
	151	pp = p;
	152	if (!i2d_ECDSAParameters(ecdsa, &pp))
	153	{
	154	X509err(X509_F_X509_PUBKEY_SET, ERR_R_ECDSA_LIB);
	155	OPENSSL_free(p);
	156	goto err;
	157	}
	158	if ((a->parameter = ASN1_TYPE_new()) == NULL)
	159	{
	160	X509err(X509_F_X509_PUBKEY_SET, ERR_R_ASN1_LIB);
	161	OPENSSL_free(p);
	162	goto err;
	163	}
	164	a->parameter->type = V_ASN1_SEQUENCE;
	165	if ((a->parameter->value.sequence = ASN1_STRING_new()) == NULL)
	166	{
	167	X509err(X509_F_X509_PUBKEY_SET, ERR_R_ASN1_LIB);
	168	OPENSSL_free(p);
	169	goto err;
	170	}
	171	ASN1_STRING_set(a->parameter->value.sequence, p, i);
	172	OPENSSL_free(p);
	173	}
	174	#endif
	175	else if (1)
d02b48c6 RE	176	{
	177	X509err(X509_F_X509_PUBKEY_SET,X509_R_UNSUPPORTED_ALGORITHM);
	178	goto err;
	179	}
	180
ad65ce75	181	if ((i=i2d_PublicKey(pkey,NULL)) <= 0) goto err;
26a3a48d	182	if ((s=(unsigned char *)OPENSSL_malloc(i+1)) == NULL) goto err;
d02b48c6 RE	183	p=s;
d02b48c6 RE	184	i2d_PublicKey(pkey,&p);
08e9c1af	185	if (!M_ASN1_BIT_STRING_set(pk->public_key,s,i)) goto err;
c35f549e DSH	186	/* Set number of unused bits to zero */
	187	pk->public_key->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT\|0x07);
	188	pk->public_key->flags\|=ASN1_STRING_FLAG_BITS_LEFT;
	189
26a3a48d	190	OPENSSL_free(s);
d02b48c6	191
e77066ea	192	#if 0
d02b48c6 RE	193	CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
d02b48c6 RE	194	pk->pkey=pkey;
e77066ea	195	#endif
d02b48c6 RE	196
	197	if (*x != NULL)
	198	X509_PUBKEY_free(*x);
	199
	200	*x=pk;
	201	pk=NULL;
	202
	203	ok=1;
	204	err:
	205	if (pk != NULL) X509_PUBKEY_free(pk);
	206	return(ok);
	207	}
	208
6b691a5c	209	EVP_PKEY X509_PUBKEY_get(X509_PUBKEY key)
d02b48c6 RE	210	{
	211	EVP_PKEY *ret=NULL;
	212	long j;
	213	int type;
	214	unsigned char *p;
cf1b7d96	215	#ifndef OPENSSL_NO_DSA
b7fe2f96	216	const unsigned char *cp;
d02b48c6	217	X509_ALGOR *a;
58964a49 RE	218	#endif
	219
	220	if (key == NULL) goto err;
	221
cdbb8c2f	222	if (key->pkey != NULL)
4d94ae00 BM	223	{
	224	CRYPTO_add(&key->pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
	225	return(key->pkey);
	226	}
58964a49 RE	227
58964a49 RE	228	if (key->public_key == NULL) goto err;
d02b48c6	229
d02b48c6	230	type=OBJ_obj2nid(key->algor->algorithm);
4d94ae00	231	if ((ret = EVP_PKEY_new()) == NULL)
d02b48c6	232	{
4d94ae00	233	X509err(X509_F_X509_PUBKEY_GET, ERR_R_MALLOC_FAILURE);
d02b48c6 RE	234	goto err;
d02b48c6 RE	235	}
4d94ae00	236	ret->type = EVP_PKEY_type(type);
d02b48c6	237
4d94ae00 BM	238	/* the parameters must be extracted before the public key (ECDSA!) */
4d94ae00 BM	239
d02b48c6	240	a=key->algor;
4d94ae00 BM	241
	242	if (0)
	243	;
	244	#ifndef OPENSSL_NO_DSA
	245	else if (ret->type == EVP_PKEY_DSA)
d02b48c6	246	{
c962479b	247	if (a->parameter && (a->parameter->type == V_ASN1_SEQUENCE))
d02b48c6	248	{
4d94ae00 BM	249	if ((ret->pkey.dsa = DSA_new()) == NULL)
	250	{
	251	X509err(X509_F_X509_PUBKEY_GET, ERR_R_MALLOC_FAILURE);
	252	goto err;
	253	}
d02b48c6	254	ret->pkey.dsa->write_params=0;
a4aba800	255	cp=p=a->parameter->value.sequence->data;
d02b48c6	256	j=a->parameter->value.sequence->length;
4d94ae00	257	if (!d2i_DSAparams(&ret->pkey.dsa, &cp, (long)j))
d02b48c6 RE	258	goto err;
	259	}
	260	ret->save_parameters=1;
	261	}
	262	#endif
4d94ae00 BM	263	#ifndef OPENSSL_NO_ECDSA
	264	else if (ret->type == EVP_PKEY_ECDSA)
	265	{
	266	if (a->parameter && (a->parameter->type == V_ASN1_SEQUENCE))
	267	{
	268	if ((ret->pkey.ecdsa= ECDSA_new()) == NULL)
	269	{
	270	X509err(X509_F_X509_PUBKEY_GET, ERR_R_MALLOC_FAILURE);
	271	goto err;
	272	}
	273	ret->pkey.ecdsa->write_params = 0;
	274	cp = p = a->parameter->value.sequence->data;
	275	j = a->parameter->value.sequence->length;
	276	if (!d2i_ECDSAParameters(&ret->pkey.ecdsa, &cp, (long)j))
	277	{
	278	X509err(X509_F_X509_PUBKEY_GET, ERR_R_ECDSA_LIB);
	279	goto err;
	280	}
	281	}
	282	ret->save_parameters = 1;
	283	}
	284	#endif
	285
	286	p=key->public_key->data;
	287	j=key->public_key->length;
	288	if ((ret = d2i_PublicKey(type, &ret, &p, (long)j)) == NULL)
	289	{
	290	X509err(X509_F_X509_PUBKEY_GET, X509_R_ERR_ASN1_LIB);
	291	goto err;
	292	}
	293
	294	key->pkey = ret;
	295	CRYPTO_add(&ret->references, 1, CRYPTO_LOCK_EVP_PKEY);
d02b48c6 RE	296	return(ret);
	297	err:
	298	if (ret != NULL)
	299	EVP_PKEY_free(ret);
	300	return(NULL);
	301	}
	302
52664f50 DSH	303	/* Now two pseudo ASN1 routines that take an EVP_PKEY structure
	304	* and encode or decode as X509_PUBKEY
	305	*/
	306
	307	EVP_PKEY d2i_PUBKEY(EVP_PKEY a, unsigned char *pp,
	308	long length)
4d94ae00	309	{
52664f50 DSH	310	X509_PUBKEY *xpk;
	311	EVP_PKEY *pktmp;
	312	xpk = d2i_X509_PUBKEY(NULL, pp, length);
	313	if(!xpk) return NULL;
	314	pktmp = X509_PUBKEY_get(xpk);
	315	X509_PUBKEY_free(xpk);
	316	if(!pktmp) return NULL;
4d94ae00 BM	317	if(a)
4d94ae00 BM	318	{
52664f50 DSH	319	EVP_PKEY_free(*a);
52664f50 DSH	320	*a = pktmp;
4d94ae00	321	}
52664f50	322	return pktmp;
4d94ae00	323	}
52664f50 DSH	324
52664f50 DSH	325	int i2d_PUBKEY(EVP_PKEY a, unsigned char *pp)
4d94ae00	326	{
52664f50 DSH	327	X509_PUBKEY *xpk=NULL;
	328	int ret;
	329	if(!a) return 0;
	330	if(!X509_PUBKEY_set(&xpk, a)) return 0;
	331	ret = i2d_X509_PUBKEY(xpk, pp);
	332	X509_PUBKEY_free(xpk);
	333	return ret;
4d94ae00	334	}
52664f50 DSH	335
	336	/* The following are equivalents but which return RSA and DSA
	337	* keys
	338	*/
cf1b7d96	339	#ifndef OPENSSL_NO_RSA
52664f50 DSH	340	RSA d2i_RSA_PUBKEY(RSA a, unsigned char *pp,
52664f50 DSH	341	long length)
4d94ae00	342	{
52664f50 DSH	343	EVP_PKEY *pkey;
	344	RSA *key;
	345	unsigned char *q;
	346	q = *pp;
	347	pkey = d2i_PUBKEY(NULL, &q, length);
4d94ae00	348	if (!pkey) return NULL;
c7cb16a8	349	key = EVP_PKEY_get1_RSA(pkey);
52664f50	350	EVP_PKEY_free(pkey);
4d94ae00	351	if (!key) return NULL;
52664f50	352	*pp = q;
4d94ae00 BM	353	if (a)
4d94ae00 BM	354	{
52664f50 DSH	355	RSA_free(*a);
52664f50 DSH	356	*a = key;
4d94ae00	357	}
52664f50	358	return key;
4d94ae00	359	}
52664f50 DSH	360
52664f50 DSH	361	int i2d_RSA_PUBKEY(RSA a, unsigned char *pp)
4d94ae00	362	{
52664f50 DSH	363	EVP_PKEY *pktmp;
52664f50 DSH	364	int ret;
4d94ae00	365	if (!a) return 0;
52664f50	366	pktmp = EVP_PKEY_new();
4d94ae00 BM	367	if (!pktmp)
4d94ae00 BM	368	{
52664f50 DSH	369	ASN1err(ASN1_F_I2D_RSA_PUBKEY, ERR_R_MALLOC_FAILURE);
52664f50 DSH	370	return 0;
4d94ae00	371	}
c7cb16a8	372	EVP_PKEY_set1_RSA(pktmp, a);
52664f50 DSH	373	ret = i2d_PUBKEY(pktmp, pp);
	374	EVP_PKEY_free(pktmp);
	375	return ret;
4d94ae00	376	}
12aefe78	377	#endif
52664f50	378
cf1b7d96	379	#ifndef OPENSSL_NO_DSA
52664f50 DSH	380	DSA d2i_DSA_PUBKEY(DSA a, unsigned char *pp,
52664f50 DSH	381	long length)
4d94ae00	382	{
52664f50 DSH	383	EVP_PKEY *pkey;
	384	DSA *key;
	385	unsigned char *q;
	386	q = *pp;
	387	pkey = d2i_PUBKEY(NULL, &q, length);
4d94ae00	388	if (!pkey) return NULL;
c7cb16a8	389	key = EVP_PKEY_get1_DSA(pkey);
52664f50	390	EVP_PKEY_free(pkey);
4d94ae00	391	if (!key) return NULL;
52664f50	392	*pp = q;
4d94ae00 BM	393	if (a)
4d94ae00 BM	394	{
52664f50 DSH	395	DSA_free(*a);
52664f50 DSH	396	*a = key;
4d94ae00	397	}
52664f50	398	return key;
4d94ae00	399	}
52664f50 DSH	400
52664f50 DSH	401	int i2d_DSA_PUBKEY(DSA a, unsigned char *pp)
4d94ae00	402	{
52664f50 DSH	403	EVP_PKEY *pktmp;
	404	int ret;
	405	if(!a) return 0;
	406	pktmp = EVP_PKEY_new();
4d94ae00 BM	407	if(!pktmp)
4d94ae00 BM	408	{
52664f50 DSH	409	ASN1err(ASN1_F_I2D_DSA_PUBKEY, ERR_R_MALLOC_FAILURE);
52664f50 DSH	410	return 0;
4d94ae00	411	}
c7cb16a8	412	EVP_PKEY_set1_DSA(pktmp, a);
52664f50 DSH	413	ret = i2d_PUBKEY(pktmp, pp);
	414	EVP_PKEY_free(pktmp);
	415	return ret;
4d94ae00 BM	416	}
	417	#endif
	418
	419	#ifndef OPENSSL_NO_ECDSA
	420	ECDSA d2i_ECDSA_PUBKEY(ECDSA a, unsigned char *pp, long length)
	421	{
	422	EVP_PKEY *pkey;
	423	ECDSA *key;
	424	unsigned char *q;
	425	q = *pp;
	426	pkey = d2i_PUBKEY(NULL, &q, length);
	427	if (!pkey) return(NULL);
	428	key = EVP_PKEY_get1_ECDSA(pkey);
	429	EVP_PKEY_free(pkey);
	430	if (!key) return(NULL);
	431	*pp = q;
	432	if (a)
	433	{
	434	ECDSA_free(*a);
	435	*a = key;
	436	}
	437	return(key);
	438	}
	439
	440	int i2d_ECDSA_PUBKEY(ECDSA a, unsigned char *pp)
	441	{
	442	EVP_PKEY *pktmp;
	443	int ret;
	444	if (!a) return(0);
	445	if ((pktmp = EVP_PKEY_new()) == NULL)
	446	{
	447	ASN1err(ASN1_F_I2D_ECDSA_PUBKEY, ERR_R_MALLOC_FAILURE);
	448	return(0);
	449	}
	450	EVP_PKEY_set1_ECDSA(pktmp, a);
	451	ret = i2d_PUBKEY(pktmp, pp);
	452	EVP_PKEY_free(pktmp);
	453	return(ret);
	454	}
12aefe78	455	#endif