[thirdparty/openssl.git] / crypto / ecdsa / ecs_asn1.c

/* crypto/ecdsa/ecs_asn1.c */
/* ====================================================================
 * Copyright (c) 2000-2002 The OpenSSL Project.  All rights reserved.
 *
 * 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 above 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 acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 OpenSSL PROJECT OR
 * ITS 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.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

#include "ecdsa.h"
#include "cryptlib.h"
#include <openssl/asn1.h>
#include <openssl/asn1t.h>

typedef struct ecdsa_priv_key_st {
        int               version;
        ECPKPARAMETERS	  *parameters;
	ASN1_OBJECT	  *named_curve;
        ASN1_OCTET_STRING *pub_key;
        BIGNUM            *priv_key;
        } ECDSAPrivateKey;

ASN1_SEQUENCE(ECDSA_SIG) = {
	ASN1_SIMPLE(ECDSA_SIG, r, CBIGNUM),
	ASN1_SIMPLE(ECDSA_SIG, s, CBIGNUM)
} ASN1_SEQUENCE_END(ECDSA_SIG)

DECLARE_ASN1_FUNCTIONS_const(ECDSA_SIG)
DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECDSA_SIG, ECDSA_SIG)
IMPLEMENT_ASN1_FUNCTIONS_const(ECDSA_SIG)

ASN1_SEQUENCE(ECDSAPrivateKey) = {
	ASN1_SIMPLE(ECDSAPrivateKey, version, LONG),
	ASN1_SIMPLE(ECDSAPrivateKey, parameters, ECPKPARAMETERS),
	ASN1_SIMPLE(ECDSAPrivateKey, pub_key, ASN1_OCTET_STRING),
	ASN1_SIMPLE(ECDSAPrivateKey, priv_key, BIGNUM)
} ASN1_SEQUENCE_END(ECDSAPrivateKey)

DECLARE_ASN1_FUNCTIONS_const(ECDSAPrivateKey)
DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECDSAPrivateKey, ecdsaPrivateKey)
IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(ECDSAPrivateKey, ECDSAPrivateKey, ECDSAPrivateKey)
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(ECDSAPrivateKey, ECDSAPrivateKey, ecdsaPrivateKey)

int i2d_ECDSAParameters(ECDSA *a, unsigned char **out)
	{
	if (a == NULL)
		{
		ECDSAerr(ECDSA_F_I2D_ECDSAPARAMETERS, 
                         ERR_R_PASSED_NULL_PARAMETER);
		return 0;
		}
	return i2d_ECPKParameters(a->group, out);
	}

ECDSA *d2i_ECDSAParameters(ECDSA **a, const unsigned char **in, long len)
	{
	EC_GROUP *group;
	ECDSA    *ret;

	if (in == NULL || *in == NULL)
		{
		ECDSAerr(ECDSA_F_D2I_ECDSAPARAMETERS, 
                         ERR_R_PASSED_NULL_PARAMETER);
		return NULL;
		}

	group = d2i_ECPKParameters(NULL, in, len);

	if (group == NULL)
		{
		ECDSAerr(ECDSA_F_D2I_ECDSAPARAMETERS, 
                         ERR_R_EC_LIB);
		return NULL;
		}

	if (a == NULL || *a == NULL)
		{
		if ((ret = ECDSA_new()) == NULL)
			{
			ECDSAerr(ECDSA_F_D2I_ECDSAPARAMETERS, 
                                 ERR_R_MALLOC_FAILURE);
			return NULL;
			}
		if (a)
			*a = ret;
		}
	else
		ret = *a;

	if (ret->group)
		EC_GROUP_clear_free(ret->group);

	ret->group = group;
	
	return ret;
	}

ECDSA *d2i_ECDSAPrivateKey(ECDSA **a, const unsigned char **in, long len)
	{
	int             ok=0;
	ECDSA           *ret=NULL;
	ECDSAPrivateKey *priv_key=NULL;

	if ((priv_key = ECDSAPrivateKey_new()) == NULL)
		{
		ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_MALLOC_FAILURE);
		return NULL;
		}

	if ((priv_key = d2i_ecdsaPrivateKey(&priv_key, in, len)) == NULL)
		{
		ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY,
                         ECDSA_R_D2I_ECDSA_PRIVATEKEY_FAILURE);
		ECDSAPrivateKey_free(priv_key);
		return NULL;
		}

	if (a == NULL || *a == NULL)
		{
		if ((ret = ECDSA_new()) == NULL)	
			{
			ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY,
                                 ERR_R_MALLOC_FAILURE);
			goto err;
			}
		if (a)
			*a = ret;
		}
	else
		ret = *a;

	if (ret->group)
		EC_GROUP_clear_free(ret->group);

	ret->group = EC_ASN1_pkparameters2group(priv_key->parameters);
	if (ret->group == NULL)
		{
		ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
		goto err;
		}

	ret->version = priv_key->version;
	if (priv_key->priv_key)
		{
		if ((ret->priv_key = BN_dup(priv_key->priv_key)) == NULL)
			{
			ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY,
                                 ERR_R_BN_LIB);
			goto err;
			}
		}
	else
		{
		ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, 
                         ECDSA_R_MISSING_PRIVATE_KEY);
		goto err;
		}

	if ((ret->pub_key = EC_POINT_new(ret->group)) == NULL)
		{
		ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
		goto err;
		}

	if (!EC_POINT_oct2point(ret->group, ret->pub_key, 
                priv_key->pub_key->data, priv_key->pub_key->length, NULL))
		{
		ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
		goto err;
		}

	ok = 1;

err :	if (!ok)
	{
		if (ret) ECDSA_free(ret);
		ret = NULL;
	}
	if (priv_key)
		ECDSAPrivateKey_free(priv_key);
	return(ret);
}

int	i2d_ECDSAPrivateKey(ECDSA *a, unsigned char **out)
{
	int ret=0, ok=0;
	unsigned char   *buffer=NULL;
	size_t		buf_len=0;
	ECDSAPrivateKey *priv_key=NULL;

	if (a == NULL || a->group == NULL)
		{
		ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY,
                         ERR_R_PASSED_NULL_PARAMETER);
		goto err;
		}

	if ((priv_key = ECDSAPrivateKey_new()) == NULL)
		{
		ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY,
                         ERR_R_MALLOC_FAILURE);
		goto err;
		}

	if ((priv_key->parameters = EC_ASN1_group2pkparameters(a->group, 
                                    priv_key->parameters)) == NULL)
		{
		ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
		goto err;
		}

	priv_key->version      = a->version;

	if (BN_copy(priv_key->priv_key, a->priv_key) == NULL)
		{
		ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_BN_LIB);
		goto err;
		}

	buf_len = EC_POINT_point2oct(a->group, a->pub_key, 
                           ECDSA_get_conversion_form(a), NULL, 0, NULL);
	if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
		{
		ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_MALLOC_FAILURE);
		goto err;
		}
	if (!EC_POINT_point2oct(a->group, a->pub_key, 
			ECDSA_get_conversion_form(a), buffer, buf_len, NULL))
		{
		ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
		goto err;
		}
	if (!M_ASN1_OCTET_STRING_set(priv_key->pub_key, buffer, buf_len))
		{
		ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_ASN1_LIB);
		goto err;
		}
	if ((ret = i2d_ecdsaPrivateKey(priv_key, out)) == 0)
		{
		ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, 
                         ECDSA_R_I2D_ECDSA_PRIVATEKEY);
		goto err;
		}
	ok=1;
	
err:
	if (buffer)
		OPENSSL_free(buffer);
	if (priv_key)
		ECDSAPrivateKey_free(priv_key);	
	return(ok?ret:0);
}


ECDSA 	*ECDSAPublicKey_set_octet_string(ECDSA **a, const unsigned char **in, long len)
{
	ECDSA *ret=NULL;

	if (a == NULL || (*a) == NULL || (*a)->group == NULL)
	{
		/* sorry, but a EC_GROUP-structur is necessary
                 * to set the public key */
		ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ECDSA_R_MISSING_PARAMETERS);
		return 0;
	}
	ret = *a;
	if (ret->pub_key == NULL && (ret->pub_key = EC_POINT_new(ret->group)) == NULL)
	{
		ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_MALLOC_FAILURE);
		return 0;
	}
	if (!EC_POINT_oct2point(ret->group, ret->pub_key, *in, len, NULL))
	{
		ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
		return 0;
	}
	ECDSA_set_conversion_form(ret, (point_conversion_form_t)(*in[0] & ~0x01));
	return ret;
}

int 	ECDSAPublicKey_get_octet_string(ECDSA *a, unsigned char **out)
{
        size_t  buf_len=0;

        if (a == NULL) 
	{
		ECDSAerr(ECDSA_F_I2D_ECDSAPUBLICKEY, ECDSA_R_MISSING_PARAMETERS);
		return 0;
	}
        buf_len = EC_POINT_point2oct(a->group, a->pub_key, 
                              ECDSA_get_conversion_form(a), NULL, 0, NULL);
	if (out == NULL || buf_len == 0)
	/* out == NULL => just return the length of the octet string */
		return buf_len;
	if (*out == NULL)
		if ((*out = OPENSSL_malloc(buf_len)) == NULL)
		{
			ECDSAerr(ECDSA_F_I2D_ECDSAPUBLICKEY, ERR_R_MALLOC_FAILURE);
			return 0;
		}
        if (!EC_POINT_point2oct(a->group, a->pub_key, ECDSA_get_conversion_form(a),
				*out, buf_len, NULL))
	{
		ECDSAerr(ECDSA_F_I2D_ECDSAPUBLICKEY, ERR_R_EC_LIB);
		OPENSSL_free(*out);
		*out = NULL;
		return 0;
	}
	return buf_len;
}
Commit	Line	Data
4d94ae00 BM	1	/* crypto/ecdsa/ecs_asn1.c */
	2	/* ====================================================================
	3	* Copyright (c) 2000-2002 The OpenSSL Project. All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	*
	9	* 1. Redistributions of source code must retain the above copyright
	10	* notice, this list of conditions and the following disclaimer.
	11	*
	12	* 2. Redistributions in binary form must reproduce the above copyright
	13	* notice, this list of conditions and the following disclaimer in
	14	* the documentation and/or other materials provided with the
	15	* distribution.
	16	*
	17	* 3. All advertising materials mentioning features or use of this
	18	* software must display the following acknowledgment:
	19	* "This product includes software developed by the OpenSSL Project
	20	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	21	*
	22	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	23	* endorse or promote products derived from this software without
	24	* prior written permission. For written permission, please contact
	25	* licensing@OpenSSL.org.
	26	*
	27	* 5. Products derived from this software may not be called "OpenSSL"
	28	* nor may "OpenSSL" appear in their names without prior written
	29	* permission of the OpenSSL Project.
	30	*
	31	* 6. Redistributions of any form whatsoever must retain the following
	32	* acknowledgment:
	33	* "This product includes software developed by the OpenSSL Project
	34	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	35	*
	36	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	37	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	38	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	39	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	40	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	41	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	42	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	43	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	44	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	45	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	46	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	47	* OF THE POSSIBILITY OF SUCH DAMAGE.
	48	* ====================================================================
	49	*
	50	* This product includes cryptographic software written by Eric Young
	51	* (eay@cryptsoft.com). This product includes software written by Tim
	52	* Hudson (tjh@cryptsoft.com).
	53	*
	54	*/
	55
458c2917	56	#include "ecdsa.h"
4d94ae00	57	#include "cryptlib.h"
4d94ae00 BM	58	#include <openssl/asn1.h>
4d94ae00 BM	59	#include <openssl/asn1t.h>
458c2917 BM	60
	61	typedef struct ecdsa_priv_key_st {
	62	int version;
	63	ECPKPARAMETERS *parameters;
	64	ASN1_OBJECT *named_curve;
	65	ASN1_OCTET_STRING *pub_key;
	66	BIGNUM *priv_key;
	67	} ECDSAPrivateKey;
4d94ae00	68
3613e6fc	69	ASN1_SEQUENCE(ECDSA_SIG) = {
4d94ae00 BM	70	ASN1_SIMPLE(ECDSA_SIG, r, CBIGNUM),
4d94ae00 BM	71	ASN1_SIMPLE(ECDSA_SIG, s, CBIGNUM)
3613e6fc	72	} ASN1_SEQUENCE_END(ECDSA_SIG)
4d94ae00	73
458c2917 BM	74	DECLARE_ASN1_FUNCTIONS_const(ECDSA_SIG)
458c2917 BM	75	DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECDSA_SIG, ECDSA_SIG)
4d94ae00 BM	76	IMPLEMENT_ASN1_FUNCTIONS_const(ECDSA_SIG)
4d94ae00 BM	77
4d94ae00 BM	78	ASN1_SEQUENCE(ECDSAPrivateKey) = {
4d94ae00 BM	79	ASN1_SIMPLE(ECDSAPrivateKey, version, LONG),
458c2917	80	ASN1_SIMPLE(ECDSAPrivateKey, parameters, ECPKPARAMETERS),
4d94ae00 BM	81	ASN1_SIMPLE(ECDSAPrivateKey, pub_key, ASN1_OCTET_STRING),
	82	ASN1_SIMPLE(ECDSAPrivateKey, priv_key, BIGNUM)
	83	} ASN1_SEQUENCE_END(ECDSAPrivateKey)
	84
af1cb47e BM	85	DECLARE_ASN1_FUNCTIONS_const(ECDSAPrivateKey)
af1cb47e BM	86	DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECDSAPrivateKey, ecdsaPrivateKey)
4d94ae00 BM	87	IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(ECDSAPrivateKey, ECDSAPrivateKey, ECDSAPrivateKey)
	88	IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(ECDSAPrivateKey, ECDSAPrivateKey, ecdsaPrivateKey)
	89
458c2917	90	int i2d_ECDSAParameters(ECDSA a, unsigned char *out)
4d94ae00	91	{
458c2917 BM	92	if (a == NULL)
	93	{
	94	ECDSAerr(ECDSA_F_I2D_ECDSAPARAMETERS,
	95	ERR_R_PASSED_NULL_PARAMETER);
	96	return 0;
	97	}
	98	return i2d_ECPKParameters(a->group, out);
4d94ae00	99	}
4d94ae00	100
458c2917	101	ECDSA d2i_ECDSAParameters(ECDSA a, const unsigned char *in, long len)
4d94ae00	102	{
458c2917 BM	103	EC_GROUP *group;
458c2917 BM	104	ECDSA *ret;
4d94ae00	105
458c2917 BM	106	if (in == NULL \|\| *in == NULL)
	107	{
	108	ECDSAerr(ECDSA_F_D2I_ECDSAPARAMETERS,
	109	ERR_R_PASSED_NULL_PARAMETER);
	110	return NULL;
	111	}
4d94ae00	112
458c2917	113	group = d2i_ECPKParameters(NULL, in, len);
af28dd6c	114
458c2917 BM	115	if (group == NULL)
	116	{
	117	ECDSAerr(ECDSA_F_D2I_ECDSAPARAMETERS,
	118	ERR_R_EC_LIB);
	119	return NULL;
	120	}
af28dd6c	121
458c2917 BM	122	if (a == NULL \|\| *a == NULL)
	123	{
	124	if ((ret = ECDSA_new()) == NULL)
	125	{
	126	ECDSAerr(ECDSA_F_D2I_ECDSAPARAMETERS,
	127	ERR_R_MALLOC_FAILURE);
	128	return NULL;
	129	}
	130	if (a)
	131	*a = ret;
	132	}
af28dd6c	133	else
458c2917	134	ret = *a;
4d94ae00	135
458c2917 BM	136	if (ret->group)
458c2917 BM	137	EC_GROUP_clear_free(ret->group);
4d94ae00	138
458c2917 BM	139	ret->group = group;
	140
	141	return ret;
4d94ae00	142	}
4d94ae00	143
458c2917	144	ECDSA d2i_ECDSAPrivateKey(ECDSA a, const unsigned char *in, long len)
4d94ae00	145	{
458c2917 BM	146	int ok=0;
	147	ECDSA *ret=NULL;
	148	ECDSAPrivateKey *priv_key=NULL;
4d94ae00	149
458c2917	150	if ((priv_key = ECDSAPrivateKey_new()) == NULL)
4d94ae00	151	{
458c2917	152	ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_MALLOC_FAILURE);
4d94ae00	153	return NULL;
4d94ae00	154	}
4d94ae00	155
458c2917	156	if ((priv_key = d2i_ecdsaPrivateKey(&priv_key, in, len)) == NULL)
4d94ae00	157	{
458c2917 BM	158	ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY,
	159	ECDSA_R_D2I_ECDSA_PRIVATEKEY_FAILURE);
	160	ECDSAPrivateKey_free(priv_key);
	161	return NULL;
4d94ae00	162	}
458c2917 BM	163
458c2917 BM	164	if (a == NULL \|\| *a == NULL)
4d94ae00	165	{
458c2917 BM	166	if ((ret = ECDSA_new()) == NULL)
	167	{
	168	ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY,
	169	ERR_R_MALLOC_FAILURE);
	170	goto err;
	171	}
	172	if (a)
	173	*a = ret;
4d94ae00	174	}
4d94ae00	175	else
458c2917	176	ret = *a;
4d94ae00	177
458c2917 BM	178	if (ret->group)
458c2917 BM	179	EC_GROUP_clear_free(ret->group);
4d94ae00	180
458c2917 BM	181	ret->group = EC_ASN1_pkparameters2group(priv_key->parameters);
458c2917 BM	182	if (ret->group == NULL)
4d94ae00	183	{
458c2917 BM	184	ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
458c2917 BM	185	goto err;
4d94ae00	186	}
4d94ae00	187
4d94ae00	188	ret->version = priv_key->version;
4d94ae00	189	if (priv_key->priv_key)
458c2917	190	{
4d94ae00	191	if ((ret->priv_key = BN_dup(priv_key->priv_key)) == NULL)
458c2917 BM	192	{
	193	ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY,
	194	ERR_R_BN_LIB);
	195	goto err;
	196	}
	197	}
4d94ae00	198	else
458c2917 BM	199	{
	200	ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY,
	201	ECDSA_R_MISSING_PRIVATE_KEY);
	202	goto err;
	203	}
	204
4d94ae00	205	if ((ret->pub_key = EC_POINT_new(ret->group)) == NULL)
458c2917 BM	206	{
	207	ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
	208	goto err;
	209	}
	210
	211	if (!EC_POINT_oct2point(ret->group, ret->pub_key,
	212	priv_key->pub_key->data, priv_key->pub_key->length, NULL))
	213	{
	214	ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
	215	goto err;
	216	}
	217
4d94ae00	218	ok = 1;
458c2917	219
4d94ae00 BM	220	err : if (!ok)
	221	{
	222	if (ret) ECDSA_free(ret);
	223	ret = NULL;
4d94ae00	224	}
458c2917 BM	225	if (priv_key)
458c2917 BM	226	ECDSAPrivateKey_free(priv_key);
4d94ae00 BM	227	return(ret);
	228	}
	229
	230	int i2d_ECDSAPrivateKey(ECDSA a, unsigned char *out)
	231	{
458c2917	232	int ret=0, ok=0;
4d94ae00 BM	233	unsigned char *buffer=NULL;
	234	size_t buf_len=0;
	235	ECDSAPrivateKey *priv_key=NULL;
	236
	237	if (a == NULL \|\| a->group == NULL)
458c2917 BM	238	{
	239	ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY,
	240	ERR_R_PASSED_NULL_PARAMETER);
	241	goto err;
	242	}
	243
4d94ae00	244	if ((priv_key = ECDSAPrivateKey_new()) == NULL)
458c2917 BM	245	{
	246	ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY,
	247	ERR_R_MALLOC_FAILURE);
	248	goto err;
	249	}
	250
	251	if ((priv_key->parameters = EC_ASN1_group2pkparameters(a->group,
	252	priv_key->parameters)) == NULL)
	253	{
	254	ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
	255	goto err;
	256	}
	257
4d94ae00	258	priv_key->version = a->version;
458c2917	259
4d94ae00	260	if (BN_copy(priv_key->priv_key, a->priv_key) == NULL)
458c2917 BM	261	{
	262	ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_BN_LIB);
	263	goto err;
	264	}
	265
	266	buf_len = EC_POINT_point2oct(a->group, a->pub_key,
	267	ECDSA_get_conversion_form(a), NULL, 0, NULL);
4d94ae00	268	if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
458c2917 BM	269	{
	270	ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_MALLOC_FAILURE);
	271	goto err;
	272	}
	273	if (!EC_POINT_point2oct(a->group, a->pub_key,
	274	ECDSA_get_conversion_form(a), buffer, buf_len, NULL))
	275	{
	276	ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
	277	goto err;
	278	}
4d94ae00	279	if (!M_ASN1_OCTET_STRING_set(priv_key->pub_key, buffer, buf_len))
458c2917 BM	280	{
	281	ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, ERR_R_ASN1_LIB);
	282	goto err;
	283	}
4d94ae00	284	if ((ret = i2d_ecdsaPrivateKey(priv_key, out)) == 0)
458c2917 BM	285	{
	286	ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY,
	287	ECDSA_R_I2D_ECDSA_PRIVATEKEY);
	288	goto err;
	289	}
4d94ae00 BM	290	ok=1;
4d94ae00 BM	291
458c2917 BM	292	err:
	293	if (buffer)
	294	OPENSSL_free(buffer);
	295	if (priv_key)
	296	ECDSAPrivateKey_free(priv_key);
4d94ae00 BM	297	return(ok?ret:0);
	298	}
	299
	300
d0561b5c	301	ECDSA ECDSAPublicKey_set_octet_string(ECDSA a, const unsigned char *in, long len)
4d94ae00	302	{
4d94ae00	303	ECDSA *ret=NULL;
4d94ae00	304
d0561b5c	305	if (a == NULL \|\| (a) == NULL \|\| (a)->group == NULL)
4d94ae00	306	{
d0561b5c BM	307	/* sorry, but a EC_GROUP-structur is necessary
	308	* to set the public key */
	309	ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ECDSA_R_MISSING_PARAMETERS);
	310	return 0;
4d94ae00	311	}
d0561b5c BM	312	ret = *a;
d0561b5c BM	313	if (ret->pub_key == NULL && (ret->pub_key = EC_POINT_new(ret->group)) == NULL)
4d94ae00	314	{
d0561b5c BM	315	ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_MALLOC_FAILURE);
	316	return 0;
	317	}
	318	if (!EC_POINT_oct2point(ret->group, ret->pub_key, *in, len, NULL))
4d94ae00	319	{
d0561b5c BM	320	ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, ERR_R_EC_LIB);
d0561b5c BM	321	return 0;
4d94ae00	322	}
b975183c	323	ECDSA_set_conversion_form(ret, (point_conversion_form_t)(*in[0] & ~0x01));
d0561b5c	324	return ret;
4d94ae00 BM	325	}
4d94ae00 BM	326
d0561b5c	327	int ECDSAPublicKey_get_octet_string(ECDSA a, unsigned char *out)
4d94ae00	328	{
d0561b5c	329	size_t buf_len=0;
4d94ae00 BM	330
4d94ae00 BM	331	if (a == NULL)
d0561b5c BM	332	{
	333	ECDSAerr(ECDSA_F_I2D_ECDSAPUBLICKEY, ECDSA_R_MISSING_PARAMETERS);
	334	return 0;
	335	}
458c2917 BM	336	buf_len = EC_POINT_point2oct(a->group, a->pub_key,
458c2917 BM	337	ECDSA_get_conversion_form(a), NULL, 0, NULL);
d0561b5c BM	338	if (out == NULL \|\| buf_len == 0)
	339	/* out == NULL => just return the length of the octet string */
	340	return buf_len;
	341	if (*out == NULL)
	342	if ((*out = OPENSSL_malloc(buf_len)) == NULL)
	343	{
	344	ECDSAerr(ECDSA_F_I2D_ECDSAPUBLICKEY, ERR_R_MALLOC_FAILURE);
	345	return 0;
	346	}
	347	if (!EC_POINT_point2oct(a->group, a->pub_key, ECDSA_get_conversion_form(a),
	348	*out, buf_len, NULL))
	349	{
	350	ECDSAerr(ECDSA_F_I2D_ECDSAPUBLICKEY, ERR_R_EC_LIB);
	351	OPENSSL_free(*out);
	352	*out = NULL;
	353	return 0;
	354	}
	355	return buf_len;
4d94ae00	356	}