evp_pkey.c
/* evp_pkey.c */
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 1999.
*/
/* ====================================================================
* Copyright (c) 1999-2002 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 <stdio.h>
#include <stdlib.h>
#include "cryptlib.h"
#include <openssl/x509.h>
#include <openssl/rand.h>
#ifndef OPENSSL_NO_RSA
# include <openssl/rsa.h>
#endif
#ifndef OPENSSL_NO_DSA
# include <openssl/dsa.h>
#endif
#include <openssl/bn.h>
#ifndef OPENSSL_NO_DSA
static int dsa_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8inf, EVP_PKEY *pkey);
#endif
#ifndef OPENSSL_NO_EC
static int eckey_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8inf, EVP_PKEY *pkey);
#endif
/* Extract a private key from a PKCS8 structure */
EVP_PKEY *EVP_PKCS82PKEY(PKCS8_PRIV_KEY_INFO *p8)
{
EVP_PKEY *pkey = NULL;
#ifndef OPENSSL_NO_RSA
RSA *rsa = NULL;
#endif
#ifndef OPENSSL_NO_DSA
DSA *dsa = NULL;
ASN1_TYPE *t1, *t2;
ASN1_INTEGER *privkey;
STACK_OF(ASN1_TYPE) *ndsa = NULL;
#endif
#ifndef OPENSSL_NO_EC
EC_KEY *eckey = NULL;
const unsigned char *p_tmp;
#endif
#if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_EC)
ASN1_TYPE *param = NULL;
BN_CTX *ctx = NULL;
int plen;
#endif
X509_ALGOR *a;
const unsigned char *p;
const unsigned char *cp;
int pkeylen;
int nid;
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;
nid = OBJ_obj2nid(a->algorithm);
switch (nid) {
#ifndef OPENSSL_NO_RSA
case NID_rsaEncryption:
cp = p;
if (!(rsa = d2i_RSAPrivateKey(NULL, &cp, pkeylen))) {
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
return NULL;
}
EVP_PKEY_assign_RSA(pkey, rsa);
break;
#endif
#ifndef OPENSSL_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;
}
cp = p = param->value.sequence->data;
plen = param->value.sequence->length;
if (!(dsa = d2i_DSAparams(NULL, &cp, 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
#ifndef OPENSSL_NO_EC
case NID_X9_62_id_ecPublicKey:
p_tmp = p;
/* extract the ec parameters */
param = p8->pkeyalg->parameter;
if (!param || ((param->type != V_ASN1_SEQUENCE) &&
(param->type != V_ASN1_OBJECT))) {
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
goto ecerr;
}
if (param->type == V_ASN1_SEQUENCE) {
cp = p = param->value.sequence->data;
plen = param->value.sequence->length;
if (!(eckey = d2i_ECParameters(NULL, &cp, plen))) {
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
goto ecerr;
}
} else {
EC_GROUP *group;
cp = p = param->value.object->data;
plen = param->value.object->length;
/*
* type == V_ASN1_OBJECT => the parameters are given by an asn1
* OID
*/
if ((eckey = EC_KEY_new()) == NULL) {
EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_MALLOC_FAILURE);
goto ecerr;
}
group =
EC_GROUP_new_by_curve_name(OBJ_obj2nid
(a->parameter->value.object));
if (group == NULL)
goto ecerr;
EC_GROUP_set_asn1_flag(group, OPENSSL_EC_NAMED_CURVE);
if (EC_KEY_set_group(eckey, group) == 0)
goto ecerr;
EC_GROUP_free(group);
}
/* We have parameters now set private key */
if (!d2i_ECPrivateKey(&eckey, &p_tmp, pkeylen)) {
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
goto ecerr;
}
/* calculate public key (if necessary) */
if (EC_KEY_get0_public_key(eckey) == NULL) {
const BIGNUM *priv_key;
const EC_GROUP *group;
EC_POINT *pub_key;
/*
* the public key was not included in the SEC1 private key =>
* calculate the public key
*/
group = EC_KEY_get0_group(eckey);
pub_key = EC_POINT_new(group);
if (pub_key == NULL) {
EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_EC_LIB);
goto ecerr;
}
if (!EC_POINT_copy(pub_key, EC_GROUP_get0_generator(group))) {
EC_POINT_free(pub_key);
EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_EC_LIB);
goto ecerr;
}
priv_key = EC_KEY_get0_private_key(eckey);
if (!EC_POINT_mul(group, pub_key, priv_key, NULL, NULL, ctx)) {
EC_POINT_free(pub_key);
EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_EC_LIB);
goto ecerr;
}
if (EC_KEY_set_public_key(eckey, pub_key) == 0) {
EC_POINT_free(pub_key);
EVPerr(EVP_F_EVP_PKCS82PKEY, ERR_R_EC_LIB);
goto ecerr;
}
EC_POINT_free(pub_key);
}
EVP_PKEY_assign_EC_KEY(pkey, eckey);
if (ctx)
BN_CTX_free(ctx);
break;
ecerr:
if (ctx)
BN_CTX_free(ctx);
if (eckey)
EC_KEY_free(eckey);
if (pkey)
EVP_PKEY_free(pkey);
return NULL;
#endif
default:
EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
if (!a->algorithm)
BUF_strlcpy(obj_tmp, "NULL", sizeof obj_tmp);
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_BROKEN, ERR_R_MALLOC_FAILURE);
return NULL;
}
p8->broken = broken;
if (!ASN1_INTEGER_set(p8->version, 0)) {
EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, ERR_R_MALLOC_FAILURE);
PKCS8_PRIV_KEY_INFO_free(p8);
return NULL;
}
if (!(p8->pkeyalg->parameter = ASN1_TYPE_new())) {
EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, 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 OPENSSL_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_of(EVP_PKEY, pkey, i2d_PrivateKey,
&p8->pkey->value.octet_string)) {
EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN, ERR_R_MALLOC_FAILURE);
PKCS8_PRIV_KEY_INFO_free(p8);
return NULL;
}
break;
#endif
#ifndef OPENSSL_NO_DSA
case EVP_PKEY_DSA:
if (!dsa_pkey2pkcs8(p8, pkey)) {
PKCS8_PRIV_KEY_INFO_free(p8);
return NULL;
}
break;
#endif
#ifndef OPENSSL_NO_EC
case EVP_PKEY_EC:
if (!eckey_pkey2pkcs8(p8, pkey)) {
PKCS8_PRIV_KEY_INFO_free(p8);
return (NULL);
}
break;
#endif
default:
EVPerr(EVP_F_EVP_PKEY2PKCS8_BROKEN,
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, 0.0);
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_PKCS8_SET_BROKEN, EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
return NULL;
}
}
#ifndef OPENSSL_NO_DSA
static int dsa_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8, EVP_PKEY *pkey)
{
ASN1_STRING *params = NULL;
ASN1_INTEGER *prkey = NULL;
ASN1_TYPE *ttmp = NULL;
STACK_OF(ASN1_TYPE) *ndsa = NULL;
unsigned char *p = NULL, *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_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
q = p;
i2d_DSAparams(pkey->pkey.dsa, &q);
if (!(params = ASN1_STRING_new())) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!ASN1_STRING_set(params, p, len)) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
OPENSSL_free(p);
p = NULL;
/* Get private key into integer */
if (!(prkey = BN_to_ASN1_INTEGER(pkey->pkey.dsa->priv_key, NULL))) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, EVP_R_ENCODE_ERROR);
goto err;
}
switch (p8->broken) {
case PKCS8_OK:
case PKCS8_NO_OCTET:
if (!ASN1_pack_string_of(ASN1_INTEGER, prkey, i2d_ASN1_INTEGER,
&p8->pkey->value.octet_string)) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
M_ASN1_INTEGER_free(prkey);
prkey = NULL;
p8->pkeyalg->parameter->value.sequence = params;
params = NULL;
p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
break;
case PKCS8_NS_DB:
p8->pkeyalg->parameter->value.sequence = params;
params = NULL;
p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
if (!(ndsa = sk_ASN1_TYPE_new_null())) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!(ttmp = ASN1_TYPE_new())) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!(ttmp->value.integer =
BN_to_ASN1_INTEGER(pkey->pkey.dsa->pub_key, NULL))) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, EVP_R_ENCODE_ERROR);
goto err;
}
ttmp->type = V_ASN1_INTEGER;
if (!sk_ASN1_TYPE_push(ndsa, ttmp)) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!(ttmp = ASN1_TYPE_new())) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
ttmp->value.integer = prkey;
prkey = NULL;
ttmp->type = V_ASN1_INTEGER;
if (!sk_ASN1_TYPE_push(ndsa, ttmp)) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
ttmp = NULL;
if (!(p8->pkey->value.octet_string = ASN1_OCTET_STRING_new())) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
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_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
break;
case PKCS8_EMBEDDED_PARAM:
p8->pkeyalg->parameter->type = V_ASN1_NULL;
if (!(ndsa = sk_ASN1_TYPE_new_null())) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!(ttmp = ASN1_TYPE_new())) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
ttmp->value.sequence = params;
params = NULL;
ttmp->type = V_ASN1_SEQUENCE;
if (!sk_ASN1_TYPE_push(ndsa, ttmp)) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!(ttmp = ASN1_TYPE_new())) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
ttmp->value.integer = prkey;
prkey = NULL;
ttmp->type = V_ASN1_INTEGER;
if (!sk_ASN1_TYPE_push(ndsa, ttmp)) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
ttmp = NULL;
if (!(p8->pkey->value.octet_string = ASN1_OCTET_STRING_new())) {
EVPerr(EVP_F_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
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_DSA_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
goto err;
}
sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
break;
}
return 1;
err:
if (p != NULL)
OPENSSL_free(p);
if (params != NULL)
ASN1_STRING_free(params);
if (prkey != NULL)
M_ASN1_INTEGER_free(prkey);
if (ttmp != NULL)
ASN1_TYPE_free(ttmp);
if (ndsa != NULL)
sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
return 0;
}
#endif
#ifndef OPENSSL_NO_EC
static int eckey_pkey2pkcs8(PKCS8_PRIV_KEY_INFO *p8, EVP_PKEY *pkey)
{
EC_KEY *ec_key;
const EC_GROUP *group;
unsigned char *p, *pp;
int nid, i, ret = 0;
unsigned int tmp_flags, old_flags;
ec_key = pkey->pkey.ec;
if (ec_key == NULL || (group = EC_KEY_get0_group(ec_key)) == NULL) {
EVPerr(EVP_F_ECKEY_PKEY2PKCS8, EVP_R_MISSING_PARAMETERS);
return 0;
}
/* set the ec parameters OID */
if (p8->pkeyalg->algorithm)
ASN1_OBJECT_free(p8->pkeyalg->algorithm);
p8->pkeyalg->algorithm = OBJ_nid2obj(NID_X9_62_id_ecPublicKey);
/* set the ec parameters */
if (p8->pkeyalg->parameter) {
ASN1_TYPE_free(p8->pkeyalg->parameter);
p8->pkeyalg->parameter = NULL;
}
if ((p8->pkeyalg->parameter = ASN1_TYPE_new()) == NULL) {
EVPerr(EVP_F_ECKEY_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
return 0;
}
if (EC_GROUP_get_asn1_flag(group)
&& (nid = EC_GROUP_get_curve_name(group))) {
/* we have a 'named curve' => just set the OID */
p8->pkeyalg->parameter->type = V_ASN1_OBJECT;
p8->pkeyalg->parameter->value.object = OBJ_nid2obj(nid);
} else { /* explicit parameters */
if ((i = i2d_ECParameters(ec_key, NULL)) == 0) {
EVPerr(EVP_F_ECKEY_PKEY2PKCS8, ERR_R_EC_LIB);
return 0;
}
if ((p = (unsigned char *)OPENSSL_malloc(i)) == NULL) {
EVPerr(EVP_F_ECKEY_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
return 0;
}
pp = p;
if (!i2d_ECParameters(ec_key, &pp)) {
EVPerr(EVP_F_ECKEY_PKEY2PKCS8, ERR_R_EC_LIB);
OPENSSL_free(p);
return 0;
}
p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
if ((p8->pkeyalg->parameter->value.sequence
= ASN1_STRING_new()) == NULL) {
EVPerr(EVP_F_ECKEY_PKEY2PKCS8, ERR_R_ASN1_LIB);
OPENSSL_free(p);
return 0;
}
ASN1_STRING_set(p8->pkeyalg->parameter->value.sequence, p, i);
OPENSSL_free(p);
}
/* set the private key */
/*
* do not include the parameters in the SEC1 private key see PKCS#11
* 12.11
*/
old_flags = EC_KEY_get_enc_flags(pkey->pkey.ec);
tmp_flags = old_flags | EC_PKEY_NO_PARAMETERS;
EC_KEY_set_enc_flags(pkey->pkey.ec, tmp_flags);
i = i2d_ECPrivateKey(pkey->pkey.ec, NULL);
if (!i) {
EC_KEY_set_enc_flags(pkey->pkey.ec, old_flags);
EVPerr(EVP_F_ECKEY_PKEY2PKCS8, ERR_R_EC_LIB);
return 0;
}
p = (unsigned char *)OPENSSL_malloc(i);
if (!p) {
EC_KEY_set_enc_flags(pkey->pkey.ec, old_flags);
EVPerr(EVP_F_ECKEY_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
return 0;
}
pp = p;
if (!i2d_ECPrivateKey(pkey->pkey.ec, &pp)) {
EC_KEY_set_enc_flags(pkey->pkey.ec, old_flags);
EVPerr(EVP_F_ECKEY_PKEY2PKCS8, ERR_R_EC_LIB);
OPENSSL_free(p);
return 0;
}
/* restore old encoding flags */
EC_KEY_set_enc_flags(pkey->pkey.ec, old_flags);
switch (p8->broken) {
case PKCS8_OK:
p8->pkey->value.octet_string = ASN1_OCTET_STRING_new();
if (!p8->pkey->value.octet_string ||
!M_ASN1_OCTET_STRING_set(p8->pkey->value.octet_string,
(const void *)p, i)) {
EVPerr(EVP_F_ECKEY_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
} else
ret = 1;
break;
case PKCS8_NO_OCTET: /* RSA specific */
case PKCS8_NS_DB: /* DSA specific */
case PKCS8_EMBEDDED_PARAM: /* DSA specific */
default:
EVPerr(EVP_F_ECKEY_PKEY2PKCS8, EVP_R_ENCODE_ERROR);
}
OPENSSL_cleanse(p, (size_t)i);
OPENSSL_free(p);
return ret;
}
#endif
/* EVP_PKEY attribute functions */
int EVP_PKEY_get_attr_count(const EVP_PKEY *key)
{
return X509at_get_attr_count(key->attributes);
}
int EVP_PKEY_get_attr_by_NID(const EVP_PKEY *key, int nid, int lastpos)
{
return X509at_get_attr_by_NID(key->attributes, nid, lastpos);
}
int EVP_PKEY_get_attr_by_OBJ(const EVP_PKEY *key, ASN1_OBJECT *obj,
int lastpos)
{
return X509at_get_attr_by_OBJ(key->attributes, obj, lastpos);
}
X509_ATTRIBUTE *EVP_PKEY_get_attr(const EVP_PKEY *key, int loc)
{
return X509at_get_attr(key->attributes, loc);
}
X509_ATTRIBUTE *EVP_PKEY_delete_attr(EVP_PKEY *key, int loc)
{
return X509at_delete_attr(key->attributes, loc);
}
int EVP_PKEY_add1_attr(EVP_PKEY *key, X509_ATTRIBUTE *attr)
{
if (X509at_add1_attr(&key->attributes, attr))
return 1;
return 0;
}
int EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY *key,
const ASN1_OBJECT *obj, int type,
const unsigned char *bytes, int len)
{
if (X509at_add1_attr_by_OBJ(&key->attributes, obj, type, bytes, len))
return 1;
return 0;
}
int EVP_PKEY_add1_attr_by_NID(EVP_PKEY *key,
int nid, int type,
const unsigned char *bytes, int len)
{
if (X509at_add1_attr_by_NID(&key->attributes, nid, type, bytes, len))
return 1;
return 0;
}
int EVP_PKEY_add1_attr_by_txt(EVP_PKEY *key,
const char *attrname, int type,
const unsigned char *bytes, int len)
{
if (X509at_add1_attr_by_txt(&key->attributes, attrname, type, bytes, len))
return 1;
return 0;
}
