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

/* evp_pkey.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
 * project 1999.
 */
/* ====================================================================
 * Copyright (c) 1999 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 <stdio.h>
#include <stdlib.h>
#include "cryptlib.h"
#include <openssl/x509.h>
#include <openssl/rand.h>

static int dsa_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8inf, EVP_PKEY *pkey);

/* Extract a private key from a PKCS8 structure */

EVP_PKEY *EVP_PKCS82PKEY (PKCS8_PRIV_KEY_INFO *p8)
{
	EVP_PKEY *pkey = NULL;
#ifndef NO_RSA
	RSA *rsa = NULL;
#endif
#ifndef NO_DSA
	DSA *dsa = NULL;
	ASN1_INTEGER *privkey;
	ASN1_TYPE *t1, *t2, *param = NULL;
	STACK_OF(ASN1_TYPE) *ndsa = NULL;
	BN_CTX *ctx = NULL;
	int plen;
#endif
	X509_ALGOR *a;
	unsigned char *p;
	int pkeylen;
	char obj_tmp[80];

	if(p8->pkey->type == V_ASN1_OCTET_STRING) {
		p8->broken = PKCS8_OK;
		p = p8->pkey->value.octet_string->data;
		pkeylen = p8->pkey->value.octet_string->length;
	} else {
		p8->broken = PKCS8_NO_OCTET;
		p = p8->pkey->value.sequence->data;
		pkeylen = p8->pkey->value.sequence->length;
	}
	if (!(pkey = EVP_PKEY_new())) {
		EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
		return NULL;
	}
	a = p8->pkeyalg;
	switch (OBJ_obj2nid(a->algorithm))
	{
#ifndef NO_RSA
		case NID_rsaEncryption:
		if (!(rsa = d2i_RSAPrivateKey (NULL, &p, pkeylen))) {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			return NULL;
		}
		EVP_PKEY_assign_RSA (pkey, rsa);
		break;
#endif
#ifndef NO_DSA
		case NID_dsa:
		/* PKCS#8 DSA is weird: you just get a private key integer
	         * and parameters in the AlgorithmIdentifier the pubkey must
		 * be recalculated.
		 */
	
		/* Check for broken DSA PKCS#8, UGH! */
		if(*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) {
		    if(!(ndsa = ASN1_seq_unpack_ASN1_TYPE(p, pkeylen, 
							  d2i_ASN1_TYPE,
							  ASN1_TYPE_free))) {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			goto dsaerr;
		    }
		    if(sk_ASN1_TYPE_num(ndsa) != 2 ) {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			goto dsaerr;
		    }
		    /* Handle Two broken types:
		     * SEQUENCE {parameters, priv_key}
		     * SEQUENCE {pub_key, priv_key}
		     */

		    t1 = sk_ASN1_TYPE_value(ndsa, 0);
		    t2 = sk_ASN1_TYPE_value(ndsa, 1);
		    if(t1->type == V_ASN1_SEQUENCE) {
			p8->broken = PKCS8_EMBEDDED_PARAM;
			param = t1;
		    } else if(a->parameter->type == V_ASN1_SEQUENCE) {
			p8->broken = PKCS8_NS_DB;
			param = a->parameter;
		    } else {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			goto dsaerr;
		    }

		    if(t2->type != V_ASN1_INTEGER) {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			goto dsaerr;
		    }
		    privkey = t2->value.integer;
		} else {
			if (!(privkey=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
				EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
				goto dsaerr;
			}
			param = p8->pkeyalg->parameter;
		}
		if (!param || (param->type != V_ASN1_SEQUENCE)) {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			goto dsaerr;
		}
		p = param->value.sequence->data;
		plen = param->value.sequence->length;
		if (!(dsa = d2i_DSAparams (NULL, &p, plen))) {
			EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
			goto dsaerr;
		}
		/* We have parameters now set private key */
		if (!(dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL))) {
			EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_DECODE_ERROR);
			goto dsaerr;
		}
		/* Calculate public key (ouch!) */
		if (!(dsa->pub_key = BN_new())) {
			EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
			goto dsaerr;
		}
		if (!(ctx = BN_CTX_new())) {
			EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
			goto dsaerr;
		}
			
		if (!BN_mod_exp(dsa->pub_key, dsa->g,
						 dsa->priv_key, dsa->p, ctx)) {
			
			EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_PUBKEY_ERROR);
			goto dsaerr;
		}

		EVP_PKEY_assign_DSA(pkey, dsa);
		BN_CTX_free (ctx);
		if(ndsa) sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
		else ASN1_INTEGER_free(privkey);
		break;
		dsaerr:
		BN_CTX_free (ctx);
		sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
		DSA_free(dsa);
		EVP_PKEY_free(pkey);
		return NULL;
		break;
#endif
		default:
		EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
		if (!a->algorithm) strcpy (obj_tmp, "NULL");
		else i2t_ASN1_OBJECT(obj_tmp, 80, a->algorithm);
		ERR_add_error_data(2, "TYPE=", obj_tmp);
		EVP_PKEY_free (pkey);
		return NULL;
	}
	return pkey;
}

PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
{
	return EVP_PKEY2PKCS8_broken(pkey, PKCS8_OK);
}

/* Turn a private key into a PKCS8 structure */

PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8_broken(EVP_PKEY *pkey, int broken)
{
	PKCS8_PRIV_KEY_INFO *p8;

	if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {	
		EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
		return NULL;
	}
	p8->broken = broken;
	ASN1_INTEGER_set (p8->version, 0);
	if (!(p8->pkeyalg->parameter = ASN1_TYPE_new ())) {
		EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
		PKCS8_PRIV_KEY_INFO_free (p8);
		return NULL;
	}
	p8->pkey->type = V_ASN1_OCTET_STRING;
	switch (EVP_PKEY_type(pkey->type)) {
#ifndef NO_RSA
		case EVP_PKEY_RSA:

		if(p8->broken == PKCS8_NO_OCTET) p8->pkey->type = V_ASN1_SEQUENCE;

		p8->pkeyalg->algorithm = OBJ_nid2obj(NID_rsaEncryption);
		p8->pkeyalg->parameter->type = V_ASN1_NULL;
		if (!ASN1_pack_string ((char *)pkey, i2d_PrivateKey,
					 &p8->pkey->value.octet_string)) {
			EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
			PKCS8_PRIV_KEY_INFO_free (p8);
			return NULL;
		}
		break;
#endif
#ifndef NO_DSA
		case EVP_PKEY_DSA:
		if(!dsa_pkey2pkcs8(p8, pkey)) {
			PKCS8_PRIV_KEY_INFO_free (p8);
			return NULL;
		}

		break;
#endif
		default:
		EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
		PKCS8_PRIV_KEY_INFO_free (p8);
		return NULL;
	}
	RAND_add(p8->pkey->value.octet_string->data,
		 p8->pkey->value.octet_string->length, 0);
	return p8;
}

PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(PKCS8_PRIV_KEY_INFO *p8, int broken)
{
	switch (broken) {

		case PKCS8_OK:
		p8->broken = PKCS8_OK;
		return p8;
		break;

		case PKCS8_NO_OCTET:
		p8->broken = PKCS8_NO_OCTET;
		p8->pkey->type = V_ASN1_SEQUENCE;
		return p8;
		break;

		default:
		EVPerr(EVP_F_EVP_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
		return NULL;
		break;
		
	}
}

#ifndef NO_DSA
static int dsa_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8, EVP_PKEY *pkey)
{
	ASN1_STRING *params;
	ASN1_INTEGER *prkey;
	ASN1_TYPE *ttmp;
	STACK_OF(ASN1_TYPE) *ndsa;
	unsigned char *p, *q;
	int len;

	p8->pkeyalg->algorithm = OBJ_nid2obj(NID_dsa);
	len = i2d_DSAparams (pkey->pkey.dsa, NULL);
	if (!(p = OPENSSL_malloc(len))) {
		EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
		PKCS8_PRIV_KEY_INFO_free (p8);
		return 0;
	}
	q = p;
	i2d_DSAparams (pkey->pkey.dsa, &q);
	params = ASN1_STRING_new();
	ASN1_STRING_set(params, p, len);
	OPENSSL_free(p);
	/* Get private key into integer */
	if (!(prkey = BN_to_ASN1_INTEGER (pkey->pkey.dsa->priv_key, NULL))) {
		EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
		return 0;
	}

	switch(p8->broken) {

		case PKCS8_OK:
		case PKCS8_NO_OCTET:

		if (!ASN1_pack_string((char *)prkey, i2d_ASN1_INTEGER,
					 &p8->pkey->value.octet_string)) {
			EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
			M_ASN1_INTEGER_free (prkey);
			return 0;
		}

		M_ASN1_INTEGER_free (prkey);
		p8->pkeyalg->parameter->value.sequence = params;
		p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;

		break;

		case PKCS8_NS_DB:

		p8->pkeyalg->parameter->value.sequence = params;
		p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
		ndsa = sk_ASN1_TYPE_new_null();
		ttmp = ASN1_TYPE_new();
		if (!(ttmp->value.integer = BN_to_ASN1_INTEGER (pkey->pkey.dsa->pub_key, NULL))) {
			EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
			PKCS8_PRIV_KEY_INFO_free(p8);
			return 0;
		}
		ttmp->type = V_ASN1_INTEGER;
		sk_ASN1_TYPE_push(ndsa, ttmp);

		ttmp = ASN1_TYPE_new();
		ttmp->value.integer = prkey;
		ttmp->type = V_ASN1_INTEGER;
		sk_ASN1_TYPE_push(ndsa, ttmp);

		p8->pkey->value.octet_string = ASN1_OCTET_STRING_new();

		if (!ASN1_seq_pack_ASN1_TYPE(ndsa, i2d_ASN1_TYPE,
					 &p8->pkey->value.octet_string->data,
					 &p8->pkey->value.octet_string->length)) {

			EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
			sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
			M_ASN1_INTEGER_free(prkey);
			return 0;
		}
		sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
		break;

		case PKCS8_EMBEDDED_PARAM:

		p8->pkeyalg->parameter->type = V_ASN1_NULL;
		ndsa = sk_ASN1_TYPE_new_null();
		ttmp = ASN1_TYPE_new();
		ttmp->value.sequence = params;
		ttmp->type = V_ASN1_SEQUENCE;
		sk_ASN1_TYPE_push(ndsa, ttmp);

		ttmp = ASN1_TYPE_new();
		ttmp->value.integer = prkey;
		ttmp->type = V_ASN1_INTEGER;
		sk_ASN1_TYPE_push(ndsa, ttmp);

		p8->pkey->value.octet_string = ASN1_OCTET_STRING_new();

		if (!ASN1_seq_pack_ASN1_TYPE(ndsa, i2d_ASN1_TYPE,
					 &p8->pkey->value.octet_string->data,
					 &p8->pkey->value.octet_string->length)) {

			EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
			sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
			M_ASN1_INTEGER_free (prkey);
			return 0;
		}
		sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
		break;
	}
	return 1;
}
#endif
Commit	Line	Data
cfcefcbe DSH	1	/* evp_pkey.c */
	2	/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
	3	* project 1999.
	4	*/
	5	/* ====================================================================
	6	* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	*
	12	* 1. Redistributions of source code must retain the above copyright
	13	* notice, this list of conditions and the following disclaimer.
	14	*
	15	* 2. Redistributions in binary form must reproduce the above copyright
	16	* notice, this list of conditions and the following disclaimer in
	17	* the documentation and/or other materials provided with the
	18	* distribution.
	19	*
	20	* 3. All advertising materials mentioning features or use of this
	21	* software must display the following acknowledgment:
	22	* "This product includes software developed by the OpenSSL Project
	23	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	24	*
	25	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	26	* endorse or promote products derived from this software without
	27	* prior written permission. For written permission, please contact
	28	* licensing@OpenSSL.org.
	29	*
	30	* 5. Products derived from this software may not be called "OpenSSL"
	31	* nor may "OpenSSL" appear in their names without prior written
	32	* permission of the OpenSSL Project.
	33	*
	34	* 6. Redistributions of any form whatsoever must retain the following
	35	* acknowledgment:
	36	* "This product includes software developed by the OpenSSL Project
	37	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	38	*
	39	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	40	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	41	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	42	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	43	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	44	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	45	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	46	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	47	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	48	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	49	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	50	* OF THE POSSIBILITY OF SUCH DAMAGE.
	51	* ====================================================================
	52	*
	53	* This product includes cryptographic software written by Eric Young
	54	* (eay@cryptsoft.com). This product includes software written by Tim
	55	* Hudson (tjh@cryptsoft.com).
	56	*
	57	*/
	58
	59	#include <stdio.h>
	60	#include <stdlib.h>
	61	#include "cryptlib.h"
ec577822 BM	62	#include <openssl/x509.h>
ec577822 BM	63	#include <openssl/rand.h>
cfcefcbe	64
66430207 DSH	65	static int dsa_pkey2pkcs8(PKCS8_PRIV_KEY_INFO p8inf, EVP_PKEY pkey);
66430207 DSH	66
cfcefcbe DSH	67	/* Extract a private key from a PKCS8 structure */
cfcefcbe DSH	68
6b691a5c	69	EVP_PKEY EVP_PKCS82PKEY (PKCS8_PRIV_KEY_INFO p8)
cfcefcbe	70	{
66430207	71	EVP_PKEY *pkey = NULL;
f5d7a031	72	#ifndef NO_RSA
66430207	73	RSA *rsa = NULL;
f5d7a031 UM	74	#endif
f5d7a031 UM	75	#ifndef NO_DSA
66430207 DSH	76	DSA *dsa = NULL;
	77	ASN1_INTEGER *privkey;
	78	ASN1_TYPE t1, t2, *param = NULL;
371acb22	79	STACK_OF(ASN1_TYPE) *ndsa = NULL;
66430207	80	BN_CTX *ctx = NULL;
f5d7a031 UM	81	int plen;
	82	#endif
	83	X509_ALGOR *a;
cfcefcbe	84	unsigned char *p;
f5d7a031	85	int pkeylen;
cfcefcbe DSH	86	char obj_tmp[80];
cfcefcbe DSH	87
66430207 DSH	88	if(p8->pkey->type == V_ASN1_OCTET_STRING) {
66430207 DSH	89	p8->broken = PKCS8_OK;
cfcefcbe DSH	90	p = p8->pkey->value.octet_string->data;
cfcefcbe DSH	91	pkeylen = p8->pkey->value.octet_string->length;
66430207 DSH	92	} else {
66430207 DSH	93	p8->broken = PKCS8_NO_OCTET;
cfcefcbe DSH	94	p = p8->pkey->value.sequence->data;
cfcefcbe DSH	95	pkeylen = p8->pkey->value.sequence->length;
cfcefcbe DSH	96	}
	97	if (!(pkey = EVP_PKEY_new())) {
	98	EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
	99	return NULL;
	100	}
	101	a = p8->pkeyalg;
	102	switch (OBJ_obj2nid(a->algorithm))
	103	{
f5d7a031	104	#ifndef NO_RSA
cfcefcbe DSH	105	case NID_rsaEncryption:
	106	if (!(rsa = d2i_RSAPrivateKey (NULL, &p, pkeylen))) {
	107	EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
	108	return NULL;
	109	}
	110	EVP_PKEY_assign_RSA (pkey, rsa);
	111	break;
f5d7a031 UM	112	#endif
f5d7a031 UM	113	#ifndef NO_DSA
cfcefcbe DSH	114	case NID_dsa:
	115	/* PKCS#8 DSA is weird: you just get a private key integer
	116	* and parameters in the AlgorithmIdentifier the pubkey must
	117	* be recalculated.
	118	*/
	119
66430207	120	/* Check for broken DSA PKCS#8, UGH! */
cfcefcbe	121	if(*p == (V_ASN1_SEQUENCE\|V_ASN1_CONSTRUCTED)) {
371acb22 BL	122	if(!(ndsa = ASN1_seq_unpack_ASN1_TYPE(p, pkeylen,
	123	d2i_ASN1_TYPE,
	124	ASN1_TYPE_free))) {
cfcefcbe	125	EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
66430207	126	goto dsaerr;
cfcefcbe	127	}
371acb22	128	if(sk_ASN1_TYPE_num(ndsa) != 2 ) {
cfcefcbe	129	EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
66430207	130	goto dsaerr;
cfcefcbe	131	}
66430207 DSH	132	/* Handle Two broken types:
	133	* SEQUENCE {parameters, priv_key}
	134	* SEQUENCE {pub_key, priv_key}
	135	*/
48fe0eec	136
371acb22 BL	137	t1 = sk_ASN1_TYPE_value(ndsa, 0);
371acb22 BL	138	t2 = sk_ASN1_TYPE_value(ndsa, 1);
66430207 DSH	139	if(t1->type == V_ASN1_SEQUENCE) {
	140	p8->broken = PKCS8_EMBEDDED_PARAM;
	141	param = t1;
	142	} else if(a->parameter->type == V_ASN1_SEQUENCE) {
	143	p8->broken = PKCS8_NS_DB;
	144	param = a->parameter;
	145	} else {
cfcefcbe	146	EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
66430207 DSH	147	goto dsaerr;
	148	}
	149
	150	if(t2->type != V_ASN1_INTEGER) {
	151	EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
	152	goto dsaerr;
	153	}
	154	privkey = t2->value.integer;
48fe0eec DSH	155	} else {
	156	if (!(privkey=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
	157	EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
	158	goto dsaerr;
	159	}
	160	param = p8->pkeyalg->parameter;
	161	}
	162	if (!param \|\| (param->type != V_ASN1_SEQUENCE)) {
66430207 DSH	163	EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
66430207 DSH	164	goto dsaerr;
cfcefcbe	165	}
66430207 DSH	166	p = param->value.sequence->data;
66430207 DSH	167	plen = param->value.sequence->length;
cfcefcbe DSH	168	if (!(dsa = d2i_DSAparams (NULL, &p, plen))) {
cfcefcbe DSH	169	EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
66430207	170	goto dsaerr;
cfcefcbe DSH	171	}
cfcefcbe DSH	172	/* We have parameters now set private key */
66430207	173	if (!(dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL))) {
cfcefcbe	174	EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_DECODE_ERROR);
66430207	175	goto dsaerr;
cfcefcbe DSH	176	}
	177	/* Calculate public key (ouch!) */
	178	if (!(dsa->pub_key = BN_new())) {
	179	EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
66430207	180	goto dsaerr;
cfcefcbe DSH	181	}
	182	if (!(ctx = BN_CTX_new())) {
	183	EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
66430207	184	goto dsaerr;
cfcefcbe DSH	185	}
	186
	187	if (!BN_mod_exp(dsa->pub_key, dsa->g,
	188	dsa->priv_key, dsa->p, ctx)) {
	189
	190	EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_PUBKEY_ERROR);
66430207	191	goto dsaerr;
cfcefcbe DSH	192	}
cfcefcbe DSH	193
66430207	194	EVP_PKEY_assign_DSA(pkey, dsa);
cfcefcbe	195	BN_CTX_free (ctx);
371acb22	196	if(ndsa) sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
48fe0eec	197	else ASN1_INTEGER_free(privkey);
66430207 DSH	198	break;
	199	dsaerr:
	200	BN_CTX_free (ctx);
371acb22	201	sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
66430207 DSH	202	DSA_free(dsa);
	203	EVP_PKEY_free(pkey);
	204	return NULL;
cfcefcbe	205	break;
f5d7a031	206	#endif
cfcefcbe DSH	207	default:
	208	EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
	209	if (!a->algorithm) strcpy (obj_tmp, "NULL");
	210	else i2t_ASN1_OBJECT(obj_tmp, 80, a->algorithm);
	211	ERR_add_error_data(2, "TYPE=", obj_tmp);
	212	EVP_PKEY_free (pkey);
	213	return NULL;
	214	}
	215	return pkey;
	216	}
	217
66430207 DSH	218	PKCS8_PRIV_KEY_INFO EVP_PKEY2PKCS8(EVP_PKEY pkey)
	219	{
	220	return EVP_PKEY2PKCS8_broken(pkey, PKCS8_OK);
	221	}
	222
cfcefcbe DSH	223	/* Turn a private key into a PKCS8 structure */
cfcefcbe DSH	224
66430207	225	PKCS8_PRIV_KEY_INFO EVP_PKEY2PKCS8_broken(EVP_PKEY pkey, int broken)
cfcefcbe DSH	226	{
cfcefcbe DSH	227	PKCS8_PRIV_KEY_INFO *p8;
66430207	228
cfcefcbe DSH	229	if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {
	230	EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
	231	return NULL;
	232	}
66430207	233	p8->broken = broken;
cfcefcbe DSH	234	ASN1_INTEGER_set (p8->version, 0);
	235	if (!(p8->pkeyalg->parameter = ASN1_TYPE_new ())) {
	236	EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
	237	PKCS8_PRIV_KEY_INFO_free (p8);
	238	return NULL;
	239	}
66430207	240	p8->pkey->type = V_ASN1_OCTET_STRING;
cfcefcbe	241	switch (EVP_PKEY_type(pkey->type)) {
f5d7a031	242	#ifndef NO_RSA
cfcefcbe DSH	243	case EVP_PKEY_RSA:
cfcefcbe DSH	244
66430207 DSH	245	if(p8->broken == PKCS8_NO_OCTET) p8->pkey->type = V_ASN1_SEQUENCE;
66430207 DSH	246
cfcefcbe DSH	247	p8->pkeyalg->algorithm = OBJ_nid2obj(NID_rsaEncryption);
	248	p8->pkeyalg->parameter->type = V_ASN1_NULL;
	249	if (!ASN1_pack_string ((char *)pkey, i2d_PrivateKey,
	250	&p8->pkey->value.octet_string)) {
	251	EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
	252	PKCS8_PRIV_KEY_INFO_free (p8);
	253	return NULL;
	254	}
	255	break;
f5d7a031 UM	256	#endif
f5d7a031 UM	257	#ifndef NO_DSA
cfcefcbe	258	case EVP_PKEY_DSA:
66430207	259	if(!dsa_pkey2pkcs8(p8, pkey)) {
cfcefcbe DSH	260	PKCS8_PRIV_KEY_INFO_free (p8);
	261	return NULL;
	262	}
66430207	263
cfcefcbe	264	break;
f5d7a031	265	#endif
cfcefcbe DSH	266	default:
	267	EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
	268	PKCS8_PRIV_KEY_INFO_free (p8);
	269	return NULL;
	270	}
eb952088 UM	271	RAND_add(p8->pkey->value.octet_string->data,
eb952088 UM	272	p8->pkey->value.octet_string->length, 0);
cfcefcbe DSH	273	return p8;
	274	}
	275
6b691a5c	276	PKCS8_PRIV_KEY_INFO PKCS8_set_broken(PKCS8_PRIV_KEY_INFO p8, int broken)
cfcefcbe DSH	277	{
	278	switch (broken) {
	279
	280	case PKCS8_OK:
	281	p8->broken = PKCS8_OK;
	282	return p8;
	283	break;
	284
	285	case PKCS8_NO_OCTET:
	286	p8->broken = PKCS8_NO_OCTET;
	287	p8->pkey->type = V_ASN1_SEQUENCE;
	288	return p8;
	289	break;
	290
	291	default:
	292	EVPerr(EVP_F_EVP_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
	293	return NULL;
	294	break;
	295
	296	}
	297	}
	298
66430207 DSH	299	#ifndef NO_DSA
	300	static int dsa_pkey2pkcs8(PKCS8_PRIV_KEY_INFO p8, EVP_PKEY pkey)
	301	{
	302	ASN1_STRING *params;
	303	ASN1_INTEGER *prkey;
	304	ASN1_TYPE *ttmp;
371acb22	305	STACK_OF(ASN1_TYPE) *ndsa;
66430207 DSH	306	unsigned char p, q;
66430207 DSH	307	int len;
371acb22	308
66430207 DSH	309	p8->pkeyalg->algorithm = OBJ_nid2obj(NID_dsa);
66430207 DSH	310	len = i2d_DSAparams (pkey->pkey.dsa, NULL);
26a3a48d	311	if (!(p = OPENSSL_malloc(len))) {
66430207 DSH	312	EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
	313	PKCS8_PRIV_KEY_INFO_free (p8);
	314	return 0;
	315	}
	316	q = p;
	317	i2d_DSAparams (pkey->pkey.dsa, &q);
	318	params = ASN1_STRING_new();
	319	ASN1_STRING_set(params, p, len);
26a3a48d	320	OPENSSL_free(p);
66430207 DSH	321	/* Get private key into integer */
	322	if (!(prkey = BN_to_ASN1_INTEGER (pkey->pkey.dsa->priv_key, NULL))) {
	323	EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
	324	return 0;
	325	}
	326
	327	switch(p8->broken) {
cfcefcbe	328
66430207 DSH	329	case PKCS8_OK:
	330	case PKCS8_NO_OCTET:
	331
	332	if (!ASN1_pack_string((char *)prkey, i2d_ASN1_INTEGER,
	333	&p8->pkey->value.octet_string)) {
	334	EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
	335	M_ASN1_INTEGER_free (prkey);
	336	return 0;
	337	}
	338
	339	M_ASN1_INTEGER_free (prkey);
	340	p8->pkeyalg->parameter->value.sequence = params;
	341	p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
	342
	343	break;
	344
	345	case PKCS8_NS_DB:
	346
	347	p8->pkeyalg->parameter->value.sequence = params;
	348	p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
371acb22	349	ndsa = sk_ASN1_TYPE_new_null();
66430207 DSH	350	ttmp = ASN1_TYPE_new();
	351	if (!(ttmp->value.integer = BN_to_ASN1_INTEGER (pkey->pkey.dsa->pub_key, NULL))) {
	352	EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
	353	PKCS8_PRIV_KEY_INFO_free(p8);
	354	return 0;
	355	}
	356	ttmp->type = V_ASN1_INTEGER;
371acb22	357	sk_ASN1_TYPE_push(ndsa, ttmp);
66430207 DSH	358
	359	ttmp = ASN1_TYPE_new();
	360	ttmp->value.integer = prkey;
	361	ttmp->type = V_ASN1_INTEGER;
371acb22	362	sk_ASN1_TYPE_push(ndsa, ttmp);
66430207 DSH	363
	364	p8->pkey->value.octet_string = ASN1_OCTET_STRING_new();
	365
371acb22	366	if (!ASN1_seq_pack_ASN1_TYPE(ndsa, i2d_ASN1_TYPE,
66430207 DSH	367	&p8->pkey->value.octet_string->data,
	368	&p8->pkey->value.octet_string->length)) {
	369
	370	EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
371acb22	371	sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
66430207 DSH	372	M_ASN1_INTEGER_free(prkey);
	373	return 0;
	374	}
371acb22	375	sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
66430207 DSH	376	break;
	377
	378	case PKCS8_EMBEDDED_PARAM:
	379
	380	p8->pkeyalg->parameter->type = V_ASN1_NULL;
371acb22	381	ndsa = sk_ASN1_TYPE_new_null();
66430207 DSH	382	ttmp = ASN1_TYPE_new();
	383	ttmp->value.sequence = params;
	384	ttmp->type = V_ASN1_SEQUENCE;
371acb22	385	sk_ASN1_TYPE_push(ndsa, ttmp);
66430207 DSH	386
	387	ttmp = ASN1_TYPE_new();
	388	ttmp->value.integer = prkey;
	389	ttmp->type = V_ASN1_INTEGER;
371acb22	390	sk_ASN1_TYPE_push(ndsa, ttmp);
66430207 DSH	391
	392	p8->pkey->value.octet_string = ASN1_OCTET_STRING_new();
	393
371acb22	394	if (!ASN1_seq_pack_ASN1_TYPE(ndsa, i2d_ASN1_TYPE,
66430207 DSH	395	&p8->pkey->value.octet_string->data,
	396	&p8->pkey->value.octet_string->length)) {
	397
	398	EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
371acb22	399	sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
66430207 DSH	400	M_ASN1_INTEGER_free (prkey);
	401	return 0;
	402	}
371acb22	403	sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
66430207 DSH	404	break;
	405	}
	406	return 1;
	407	}
	408	#endif