/*
- * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
- * 2006.
- */
-/* ====================================================================
- * Copyright (c) 2006 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).
+ * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <openssl/x509.h>
#include <openssl/ec.h>
#include <openssl/bn.h>
-#ifndef OPENSSL_NO_CMS
-# include <openssl/cms.h>
-#endif
+#include <openssl/cms.h>
#include <openssl/asn1t.h>
#include "internal/asn1_int.h"
#include "internal/evp_int.h"
+#include "ec_lcl.h"
#ifndef OPENSSL_NO_CMS
static int ecdh_cms_decrypt(CMS_RecipientInfo *ri);
return 0;
}
-static EC_KEY *eckey_type2param(int ptype, void *pval)
+static EC_KEY *eckey_type2param(int ptype, const void *pval)
{
EC_KEY *eckey = NULL;
+ EC_GROUP *group = NULL;
+
if (ptype == V_ASN1_SEQUENCE) {
- ASN1_STRING *pstr = pval;
- const unsigned char *pm = NULL;
- int pmlen;
- pm = pstr->data;
- pmlen = pstr->length;
+ const ASN1_STRING *pstr = pval;
+ const unsigned char *pm = pstr->data;
+ int pmlen = pstr->length;
+
if ((eckey = d2i_ECParameters(NULL, &pm, pmlen)) == NULL) {
ECerr(EC_F_ECKEY_TYPE2PARAM, EC_R_DECODE_ERROR);
goto ecerr;
}
} else if (ptype == V_ASN1_OBJECT) {
- ASN1_OBJECT *poid = pval;
- EC_GROUP *group;
+ const ASN1_OBJECT *poid = pval;
/*
* type == V_ASN1_OBJECT => the parameters are given by an asn1 OID
ecerr:
EC_KEY_free(eckey);
+ EC_GROUP_free(group);
return NULL;
}
static int eckey_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
{
const unsigned char *p = NULL;
- void *pval;
+ const void *pval;
int ptype, pklen;
EC_KEY *eckey = NULL;
X509_ALGOR *palg;
const EC_GROUP *group = EC_KEY_get0_group(b->pkey.ec);
const EC_POINT *pa = EC_KEY_get0_public_key(a->pkey.ec),
*pb = EC_KEY_get0_public_key(b->pkey.ec);
+ if (group == NULL || pa == NULL || pb == NULL)
+ return -2;
r = EC_POINT_cmp(group, pa, pb, NULL);
if (r == 0)
return 1;
return -2;
}
-static int eckey_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
+static int eckey_priv_decode(EVP_PKEY *pkey, const PKCS8_PRIV_KEY_INFO *p8)
{
const unsigned char *p = NULL;
- void *pval;
+ const void *pval;
int ptype, pklen;
EC_KEY *eckey = NULL;
- X509_ALGOR *palg;
+ const X509_ALGOR *palg;
if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8))
return 0;
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) {
- ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB);
- goto ecliberr;
- }
- if (!EC_POINT_copy(pub_key, EC_GROUP_get0_generator(group))) {
- EC_POINT_free(pub_key);
- ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB);
- goto ecliberr;
- }
- priv_key = EC_KEY_get0_private_key(eckey);
- if (!EC_POINT_mul(group, pub_key, priv_key, NULL, NULL, NULL)) {
- EC_POINT_free(pub_key);
- ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB);
- goto ecliberr;
- }
- if (EC_KEY_set_public_key(eckey, pub_key) == 0) {
- EC_POINT_free(pub_key);
- ECerr(EC_F_ECKEY_PRIV_DECODE, ERR_R_EC_LIB);
- goto ecliberr;
- }
- EC_POINT_free(pub_key);
- }
-
EVP_PKEY_assign_EC_KEY(pkey, eckey);
return 1;
static int eckey_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
{
- EC_KEY *ec_key;
+ EC_KEY ec_key = *(pkey->pkey.ec);
unsigned char *ep, *p;
int eplen, ptype;
void *pval;
- unsigned int tmp_flags, old_flags;
-
- ec_key = pkey->pkey.ec;
+ unsigned int old_flags;
- if (!eckey_param2type(&ptype, &pval, ec_key)) {
+ if (!eckey_param2type(&ptype, &pval, &ec_key)) {
ECerr(EC_F_ECKEY_PRIV_ENCODE, EC_R_DECODE_ERROR);
return 0;
}
* do not include the parameters in the SEC1 private key see PKCS#11
* 12.11
*/
- old_flags = EC_KEY_get_enc_flags(ec_key);
- tmp_flags = old_flags | EC_PKEY_NO_PARAMETERS;
- EC_KEY_set_enc_flags(ec_key, tmp_flags);
- eplen = i2d_ECPrivateKey(ec_key, NULL);
+ old_flags = EC_KEY_get_enc_flags(&ec_key);
+ EC_KEY_set_enc_flags(&ec_key, old_flags | EC_PKEY_NO_PARAMETERS);
+
+ eplen = i2d_ECPrivateKey(&ec_key, NULL);
if (!eplen) {
- EC_KEY_set_enc_flags(ec_key, old_flags);
ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_EC_LIB);
return 0;
}
ep = OPENSSL_malloc(eplen);
if (ep == NULL) {
- EC_KEY_set_enc_flags(ec_key, old_flags);
ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
return 0;
}
p = ep;
- if (!i2d_ECPrivateKey(ec_key, &p)) {
- EC_KEY_set_enc_flags(ec_key, old_flags);
+ if (!i2d_ECPrivateKey(&ec_key, &p)) {
OPENSSL_free(ep);
ECerr(EC_F_ECKEY_PRIV_ENCODE, ERR_R_EC_LIB);
return 0;
}
- /* restore old encoding flags */
- EC_KEY_set_enc_flags(ec_key, old_flags);
if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_X9_62_id_ecPublicKey), 0,
- ptype, pval, ep, eplen))
+ ptype, pval, ep, eplen)) {
+ OPENSSL_free(ep);
return 0;
+ }
return 1;
}
static int ec_bits(const EVP_PKEY *pkey)
{
- BIGNUM *order = BN_new();
- const EC_GROUP *group;
- int ret;
-
- if (order == NULL) {
- ERR_clear_error();
- return 0;
- }
- group = EC_KEY_get0_group(pkey->pkey.ec);
- if (!EC_GROUP_get_order(group, order, NULL)) {
- ERR_clear_error();
- return 0;
- }
-
- ret = BN_num_bits(order);
- BN_free(order);
- return ret;
+ return EC_GROUP_order_bits(EC_KEY_get0_group(pkey->pkey.ec));
}
static int ec_security_bits(const EVP_PKEY *pkey)
static int ec_missing_parameters(const EVP_PKEY *pkey)
{
- if (EC_KEY_get0_group(pkey->pkey.ec) == NULL)
+ if (pkey->pkey.ec == NULL || EC_KEY_get0_group(pkey->pkey.ec) == NULL)
return 1;
return 0;
}
static int ec_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
{
EC_GROUP *group = EC_GROUP_dup(EC_KEY_get0_group(from->pkey.ec));
+
if (group == NULL)
return 0;
if (to->pkey.ec == NULL) {
to->pkey.ec = EC_KEY_new();
if (to->pkey.ec == NULL)
- return 0;
+ goto err;
}
if (EC_KEY_set_group(to->pkey.ec, group) == 0)
- return 0;
+ goto err;
EC_GROUP_free(group);
return 1;
+ err:
+ EC_GROUP_free(group);
+ return 0;
}
static int ec_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
{
const EC_GROUP *group_a = EC_KEY_get0_group(a->pkey.ec),
*group_b = EC_KEY_get0_group(b->pkey.ec);
+ if (group_a == NULL || group_b == NULL)
+ return -2;
if (EC_GROUP_cmp(group_a, group_b, NULL))
return 0;
else
EC_KEY_free(pkey->pkey.ec);
}
-static int do_EC_KEY_print(BIO *bp, const EC_KEY *x, int off, int ktype)
+typedef enum {
+ EC_KEY_PRINT_PRIVATE,
+ EC_KEY_PRINT_PUBLIC,
+ EC_KEY_PRINT_PARAM
+} ec_print_t;
+
+static int do_EC_KEY_print(BIO *bp, const EC_KEY *x, int off, ec_print_t ktype)
{
- unsigned char *buffer = NULL;
const char *ecstr;
- size_t buf_len = 0, i;
- int ret = 0, reason = ERR_R_BIO_LIB;
- BIGNUM *pub_key = NULL, *order = NULL;
- BN_CTX *ctx = NULL;
+ unsigned char *priv = NULL, *pub = NULL;
+ size_t privlen = 0, publen = 0;
+ int ret = 0;
const EC_GROUP *group;
- const EC_POINT *public_key;
- const BIGNUM *priv_key;
if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL) {
- reason = ERR_R_PASSED_NULL_PARAMETER;
- goto err;
- }
-
- ctx = BN_CTX_new();
- if (ctx == NULL) {
- reason = ERR_R_MALLOC_FAILURE;
- goto err;
+ ECerr(EC_F_DO_EC_KEY_PRINT, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
}
- if (ktype > 0) {
- public_key = EC_KEY_get0_public_key(x);
- if (public_key != NULL) {
- if ((pub_key = EC_POINT_point2bn(group, public_key,
- EC_KEY_get_conv_form(x), NULL,
- ctx)) == NULL) {
- reason = ERR_R_EC_LIB;
- goto err;
- }
- buf_len = (size_t)BN_num_bytes(pub_key);
- }
+ if (ktype != EC_KEY_PRINT_PARAM && EC_KEY_get0_public_key(x) != NULL) {
+ publen = EC_KEY_key2buf(x, EC_KEY_get_conv_form(x), &pub, NULL);
+ if (publen == 0)
+ goto err;
}
- if (ktype == 2) {
- priv_key = EC_KEY_get0_private_key(x);
- if (priv_key && (i = (size_t)BN_num_bytes(priv_key)) > buf_len)
- buf_len = i;
- } else
- priv_key = NULL;
-
- if (ktype > 0) {
- buf_len += 10;
- if ((buffer = OPENSSL_malloc(buf_len)) == NULL) {
- reason = ERR_R_MALLOC_FAILURE;
+ if (ktype == EC_KEY_PRINT_PRIVATE && EC_KEY_get0_private_key(x) != NULL) {
+ privlen = EC_KEY_priv2buf(x, &priv);
+ if (privlen == 0)
goto err;
- }
}
- if (ktype == 2)
+
+ if (ktype == EC_KEY_PRINT_PRIVATE)
ecstr = "Private-Key";
- else if (ktype == 1)
+ else if (ktype == EC_KEY_PRINT_PUBLIC)
ecstr = "Public-Key";
else
ecstr = "ECDSA-Parameters";
if (!BIO_indent(bp, off, 128))
goto err;
- if ((order = BN_new()) == NULL)
- goto err;
- if (!EC_GROUP_get_order(group, order, NULL))
- goto err;
- if (BIO_printf(bp, "%s: (%d bit)\n", ecstr, BN_num_bits(order)) <= 0)
+ if (BIO_printf(bp, "%s: (%d bit)\n", ecstr,
+ EC_GROUP_order_bits(group)) <= 0)
goto err;
- if ((priv_key != NULL) && !ASN1_bn_print(bp, "priv:", priv_key,
- buffer, off))
- goto err;
- if ((pub_key != NULL) && !ASN1_bn_print(bp, "pub: ", pub_key,
- buffer, off))
- goto err;
+ if (privlen != 0) {
+ if (BIO_printf(bp, "%*spriv:\n", off, "") <= 0)
+ goto err;
+ if (ASN1_buf_print(bp, priv, privlen, off + 4) == 0)
+ goto err;
+ }
+
+ if (publen != 0) {
+ if (BIO_printf(bp, "%*spub:\n", off, "") <= 0)
+ goto err;
+ if (ASN1_buf_print(bp, pub, publen, off + 4) == 0)
+ goto err;
+ }
+
if (!ECPKParameters_print(bp, group, off))
goto err;
ret = 1;
err:
if (!ret)
- ECerr(EC_F_DO_EC_KEY_PRINT, reason);
- BN_free(pub_key);
- BN_free(order);
- BN_CTX_free(ctx);
- OPENSSL_free(buffer);
- return (ret);
+ ECerr(EC_F_DO_EC_KEY_PRINT, ERR_R_EC_LIB);
+ OPENSSL_clear_free(priv, privlen);
+ OPENSSL_free(pub);
+ return ret;
}
static int eckey_param_decode(EVP_PKEY *pkey,
static int eckey_param_print(BIO *bp, const EVP_PKEY *pkey, int indent,
ASN1_PCTX *ctx)
{
- return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 0);
+ return do_EC_KEY_print(bp, pkey->pkey.ec, indent, EC_KEY_PRINT_PARAM);
}
static int eckey_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent,
ASN1_PCTX *ctx)
{
- return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 1);
+ return do_EC_KEY_print(bp, pkey->pkey.ec, indent, EC_KEY_PRINT_PUBLIC);
}
static int eckey_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent,
ASN1_PCTX *ctx)
{
- return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 2);
+ return do_EC_KEY_print(bp, pkey->pkey.ec, indent, EC_KEY_PRINT_PRIVATE);
}
static int old_ec_priv_decode(EVP_PKEY *pkey,
#endif
case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
- *(int *)arg2 = NID_sha256;
- return 2;
+ if (EVP_PKEY_id(pkey) == EVP_PKEY_SM2) {
+ /* For SM2, the only valid digest-alg is SM3 */
+ *(int *)arg2 = NID_sm3;
+ } else {
+ *(int *)arg2 = NID_sha256;
+ }
+ return 1;
+
+ case ASN1_PKEY_CTRL_SET1_TLS_ENCPT:
+ return EC_KEY_oct2key(EVP_PKEY_get0_EC_KEY(pkey), arg2, arg1, NULL);
+
+ case ASN1_PKEY_CTRL_GET1_TLS_ENCPT:
+ return EC_KEY_key2buf(EVP_PKEY_get0_EC_KEY(pkey),
+ POINT_CONVERSION_UNCOMPRESSED, arg2, NULL);
default:
return -2;
}
+static int ec_pkey_check(const EVP_PKEY *pkey)
+{
+ EC_KEY *eckey = pkey->pkey.ec;
+
+ /* stay consistent to what EVP_PKEY_check demands */
+ if (eckey->priv_key == NULL) {
+ ECerr(EC_F_EC_PKEY_CHECK, EC_R_MISSING_PRIVATE_KEY);
+ return 0;
+ }
+
+ return EC_KEY_check_key(eckey);
+}
+
+static int ec_pkey_public_check(const EVP_PKEY *pkey)
+{
+ EC_KEY *eckey = pkey->pkey.ec;
+
+ /*
+ * Note: it unnecessary to check eckey->pub_key here since
+ * it will be checked in EC_KEY_check_key(). In fact, the
+ * EC_KEY_check_key() mainly checks the public key, and checks
+ * the private key optionally (only if there is one). So if
+ * someone passes a whole EC key (public + private), this
+ * will also work...
+ */
+
+ return EC_KEY_check_key(eckey);
+}
+
+static int ec_pkey_param_check(const EVP_PKEY *pkey)
+{
+ EC_KEY *eckey = pkey->pkey.ec;
+
+ /* stay consistent to what EVP_PKEY_check demands */
+ if (eckey->group == NULL) {
+ ECerr(EC_F_EC_PKEY_PARAM_CHECK, EC_R_MISSING_PARAMETERS);
+ return 0;
+ }
+
+ return EC_GROUP_check(eckey->group, NULL);
+}
+
const EVP_PKEY_ASN1_METHOD eckey_asn1_meth = {
EVP_PKEY_EC,
EVP_PKEY_EC,
int_ec_free,
ec_pkey_ctrl,
old_ec_priv_decode,
- old_ec_priv_encode
+ old_ec_priv_encode,
+
+ 0, 0, 0,
+
+ ec_pkey_check,
+ ec_pkey_public_check,
+ ec_pkey_param_check
};
+#if !defined(OPENSSL_NO_SM2)
+const EVP_PKEY_ASN1_METHOD sm2_asn1_meth = {
+ EVP_PKEY_SM2,
+ EVP_PKEY_EC,
+ ASN1_PKEY_ALIAS
+};
+#endif
+
+int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
+{
+ int private = EC_KEY_get0_private_key(x) != NULL;
+
+ return do_EC_KEY_print(bp, x, off,
+ private ? EC_KEY_PRINT_PRIVATE : EC_KEY_PRINT_PUBLIC);
+}
+
+int ECParameters_print(BIO *bp, const EC_KEY *x)
+{
+ return do_EC_KEY_print(bp, x, 4, EC_KEY_PRINT_PARAM);
+}
+
#ifndef OPENSSL_NO_CMS
static int ecdh_cms_set_peerkey(EVP_PKEY_CTX *pctx,
X509_ALGOR *alg, ASN1_BIT_STRING *pubkey)
{
- ASN1_OBJECT *aoid;
+ const ASN1_OBJECT *aoid;
int atype;
- void *aval;
+ const void *aval;
int rv = 0;
EVP_PKEY *pkpeer = NULL;
EC_KEY *ecpeer = NULL;
}
/* We have parameters now set public key */
plen = ASN1_STRING_length(pubkey);
- p = ASN1_STRING_data(pubkey);
+ p = ASN1_STRING_get0_data(pubkey);
if (!p || !plen)
goto err;
if (!o2i_ECPublicKey(&ecpeer, &p, plen))
if (EVP_PKEY_CTX_set_ecdh_cofactor_mode(pctx, cofactor) <= 0)
return 0;
- if (EVP_PKEY_CTX_set_ecdh_kdf_type(pctx, EVP_PKEY_ECDH_KDF_X9_62) <= 0)
+ if (EVP_PKEY_CTX_set_ecdh_kdf_type(pctx, EVP_PKEY_ECDH_KDF_X9_63) <= 0)
return 0;
kdf_md = EVP_get_digestbynid(kdfmd_nid);
EVP_CIPHER_CTX *ctx;
int keylen;
X509_ALGOR *talg, *wrap_alg = NULL;
- ASN1_OBJECT *aoid;
+ const ASN1_OBJECT *aoid;
ASN1_BIT_STRING *pubkey;
ASN1_STRING *wrap_str;
ASN1_OCTET_STRING *ukm;
V_ASN1_UNDEF, NULL);
}
- /* See if custom paraneters set */
+ /* See if custom parameters set */
kdf_type = EVP_PKEY_CTX_get_ecdh_kdf_type(pctx);
if (kdf_type <= 0)
goto err;
ecdh_nid = NID_dh_cofactor_kdf;
if (kdf_type == EVP_PKEY_ECDH_KDF_NONE) {
- kdf_type = EVP_PKEY_ECDH_KDF_X9_62;
+ kdf_type = EVP_PKEY_ECDH_KDF_X9_63;
if (EVP_PKEY_CTX_set_ecdh_kdf_type(pctx, kdf_type) <= 0)
goto err;
} else
- /* Uknown KDF */
+ /* Unknown KDF */
goto err;
if (kdf_md == NULL) {
/* Fixme later for better MD */
projects / openssl.git / blobdiff