diff options
Diffstat (limited to 'openssl/crypto/evp/evp_pkey.c')
| -rw-r--r-- | openssl/crypto/evp/evp_pkey.c | 794 |
1 files changed, 794 insertions, 0 deletions
diff --git a/openssl/crypto/evp/evp_pkey.c b/openssl/crypto/evp/evp_pkey.c new file mode 100644 index 000000000..10d9e9e77 --- /dev/null +++ b/openssl/crypto/evp/evp_pkey.c @@ -0,0 +1,794 @@ +/* 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; +} |