-/* crypto/ec/ec_asn1.c */
/*
- * Written by Nils Larsch for the OpenSSL project.
- */
-/* ====================================================================
- * Copyright (c) 2000-2003 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 2002-2018 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 <string.h>
#include <openssl/err.h>
#include <openssl/asn1t.h>
#include <openssl/objects.h>
+#include "internal/nelem.h"
+#include "internal/asn1_dsa.h"
int EC_GROUP_get_basis_type(const EC_GROUP *group)
{
- int i = 0;
+ int i;
if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) !=
NID_X9_62_characteristic_two_field)
/* everything else is currently not supported */
return 0;
- while (group->poly[i] != 0)
- i++;
+ /* Find the last non-zero element of group->poly[] */
+ for (i = 0;
+ i < (int)OSSL_NELEM(group->poly) && group->poly[i] != 0;
+ i++)
+ continue;
if (i == 4)
return NID_X9_62_ppBasis;
/* some structures needed for the asn1 encoding */
typedef struct x9_62_pentanomial_st {
- long k1;
- long k2;
- long k3;
+ int32_t k1;
+ int32_t k2;
+ int32_t k3;
} X9_62_PENTANOMIAL;
typedef struct x9_62_characteristic_two_st {
- long m;
+ int32_t m;
ASN1_OBJECT *type;
union {
char *ptr;
ASN1_BIT_STRING *seed;
} X9_62_CURVE;
-typedef struct ec_parameters_st {
- long version;
+struct ec_parameters_st {
+ int32_t version;
X9_62_FIELDID *fieldID;
X9_62_CURVE *curve;
ASN1_OCTET_STRING *base;
ASN1_INTEGER *order;
ASN1_INTEGER *cofactor;
-} ECPARAMETERS;
+} /* ECPARAMETERS */ ;
struct ecpk_parameters_st {
int type;
/* SEC1 ECPrivateKey */
typedef struct ec_privatekey_st {
- long version;
+ int32_t version;
ASN1_OCTET_STRING *privateKey;
ECPKPARAMETERS *parameters;
ASN1_BIT_STRING *publicKey;
/* the OpenSSL ASN.1 definitions */
ASN1_SEQUENCE(X9_62_PENTANOMIAL) = {
- ASN1_SIMPLE(X9_62_PENTANOMIAL, k1, LONG),
- ASN1_SIMPLE(X9_62_PENTANOMIAL, k2, LONG),
- ASN1_SIMPLE(X9_62_PENTANOMIAL, k3, LONG)
-} ASN1_SEQUENCE_END(X9_62_PENTANOMIAL)
+ ASN1_EMBED(X9_62_PENTANOMIAL, k1, INT32),
+ ASN1_EMBED(X9_62_PENTANOMIAL, k2, INT32),
+ ASN1_EMBED(X9_62_PENTANOMIAL, k3, INT32)
+} static_ASN1_SEQUENCE_END(X9_62_PENTANOMIAL)
DECLARE_ASN1_ALLOC_FUNCTIONS(X9_62_PENTANOMIAL)
IMPLEMENT_ASN1_ALLOC_FUNCTIONS(X9_62_PENTANOMIAL)
} ASN1_ADB_END(X9_62_CHARACTERISTIC_TWO, 0, type, 0, &char_two_def_tt, NULL);
ASN1_SEQUENCE(X9_62_CHARACTERISTIC_TWO) = {
- ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, m, LONG),
+ ASN1_EMBED(X9_62_CHARACTERISTIC_TWO, m, INT32),
ASN1_SIMPLE(X9_62_CHARACTERISTIC_TWO, type, ASN1_OBJECT),
ASN1_ADB_OBJECT(X9_62_CHARACTERISTIC_TWO)
-} ASN1_SEQUENCE_END(X9_62_CHARACTERISTIC_TWO)
+} static_ASN1_SEQUENCE_END(X9_62_CHARACTERISTIC_TWO)
DECLARE_ASN1_ALLOC_FUNCTIONS(X9_62_CHARACTERISTIC_TWO)
IMPLEMENT_ASN1_ALLOC_FUNCTIONS(X9_62_CHARACTERISTIC_TWO)
ASN1_SEQUENCE(X9_62_FIELDID) = {
ASN1_SIMPLE(X9_62_FIELDID, fieldType, ASN1_OBJECT),
ASN1_ADB_OBJECT(X9_62_FIELDID)
-} ASN1_SEQUENCE_END(X9_62_FIELDID)
+} static_ASN1_SEQUENCE_END(X9_62_FIELDID)
ASN1_SEQUENCE(X9_62_CURVE) = {
ASN1_SIMPLE(X9_62_CURVE, a, ASN1_OCTET_STRING),
ASN1_SIMPLE(X9_62_CURVE, b, ASN1_OCTET_STRING),
ASN1_OPT(X9_62_CURVE, seed, ASN1_BIT_STRING)
-} ASN1_SEQUENCE_END(X9_62_CURVE)
+} static_ASN1_SEQUENCE_END(X9_62_CURVE)
ASN1_SEQUENCE(ECPARAMETERS) = {
- ASN1_SIMPLE(ECPARAMETERS, version, LONG),
+ ASN1_EMBED(ECPARAMETERS, version, INT32),
ASN1_SIMPLE(ECPARAMETERS, fieldID, X9_62_FIELDID),
ASN1_SIMPLE(ECPARAMETERS, curve, X9_62_CURVE),
ASN1_SIMPLE(ECPARAMETERS, base, ASN1_OCTET_STRING),
ASN1_SIMPLE(ECPKPARAMETERS, value.implicitlyCA, ASN1_NULL)
} ASN1_CHOICE_END(ECPKPARAMETERS)
-DECLARE_ASN1_FUNCTIONS_const(ECPKPARAMETERS)
-DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECPKPARAMETERS, ECPKPARAMETERS)
-IMPLEMENT_ASN1_FUNCTIONS_const(ECPKPARAMETERS)
+DECLARE_ASN1_FUNCTIONS(ECPKPARAMETERS)
+DECLARE_ASN1_ENCODE_FUNCTIONS_name(ECPKPARAMETERS, ECPKPARAMETERS)
+IMPLEMENT_ASN1_FUNCTIONS(ECPKPARAMETERS)
ASN1_SEQUENCE(EC_PRIVATEKEY) = {
- ASN1_SIMPLE(EC_PRIVATEKEY, version, LONG),
+ ASN1_EMBED(EC_PRIVATEKEY, version, INT32),
ASN1_SIMPLE(EC_PRIVATEKEY, privateKey, ASN1_OCTET_STRING),
ASN1_EXP_OPT(EC_PRIVATEKEY, parameters, ECPKPARAMETERS, 0),
ASN1_EXP_OPT(EC_PRIVATEKEY, publicKey, ASN1_BIT_STRING, 1)
-} ASN1_SEQUENCE_END(EC_PRIVATEKEY)
+} static_ASN1_SEQUENCE_END(EC_PRIVATEKEY)
-DECLARE_ASN1_FUNCTIONS_const(EC_PRIVATEKEY)
-DECLARE_ASN1_ENCODE_FUNCTIONS_const(EC_PRIVATEKEY, EC_PRIVATEKEY)
-IMPLEMENT_ASN1_FUNCTIONS_const(EC_PRIVATEKEY)
+DECLARE_ASN1_FUNCTIONS(EC_PRIVATEKEY)
+DECLARE_ASN1_ENCODE_FUNCTIONS_name(EC_PRIVATEKEY, EC_PRIVATEKEY)
+IMPLEMENT_ASN1_FUNCTIONS(EC_PRIVATEKEY)
/* some declarations of internal function */
static int ec_asn1_group2fieldid(const EC_GROUP *, X9_62_FIELDID *);
/* ec_asn1_group2curve() sets the values in a X9_62_CURVE object */
static int ec_asn1_group2curve(const EC_GROUP *, X9_62_CURVE *);
-/*
- * ec_asn1_parameters2group() creates a EC_GROUP object from a ECPARAMETERS
- * object
- */
-static EC_GROUP *ec_asn1_parameters2group(const ECPARAMETERS *);
-/*
- * ec_asn1_group2parameters() creates a ECPARAMETERS object from a EC_GROUP
- * object
- */
-static ECPARAMETERS *ec_asn1_group2parameters(const EC_GROUP *,
- ECPARAMETERS *);
-/*
- * ec_asn1_pkparameters2group() creates a EC_GROUP object from a
- * ECPKPARAMETERS object
- */
-static EC_GROUP *ec_asn1_pkparameters2group(const ECPKPARAMETERS *);
-/*
- * ec_asn1_group2pkparameters() creates a ECPKPARAMETERS object from a
- * EC_GROUP object
- */
-static ECPKPARAMETERS *ec_asn1_group2pkparameters(const EC_GROUP *,
- ECPKPARAMETERS *);
/* the function definitions */
return 0;
/* clear the old values (if necessary) */
- if (field->fieldType != NULL)
- ASN1_OBJECT_free(field->fieldType);
- if (field->p.other != NULL)
- ASN1_TYPE_free(field->p.other);
+ ASN1_OBJECT_free(field->fieldType);
+ ASN1_TYPE_free(field->p.other);
nid = EC_METHOD_get_field_type(EC_GROUP_method_of(group));
/* set OID for the field */
goto err;
}
/* the parameters are specified by the prime number p */
- if (!EC_GROUP_get_curve_GFp(group, tmp, NULL, NULL, NULL)) {
+ if (!EC_GROUP_get_curve(group, tmp, NULL, NULL, NULL)) {
ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_EC_LIB);
goto err;
}
ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_ASN1_LIB);
goto err;
}
- } else /* nid == NID_X9_62_characteristic_two_field */
+ } else if (nid == NID_X9_62_characteristic_two_field)
#ifdef OPENSSL_NO_EC2M
{
ECerr(EC_F_EC_ASN1_GROUP2FIELDID, EC_R_GF2M_NOT_SUPPORTED);
goto err;
char_two->p.tpBasis = ASN1_INTEGER_new();
- if (!char_two->p.tpBasis) {
+ if (char_two->p.tpBasis == NULL) {
ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE);
goto err;
}
goto err;
char_two->p.ppBasis = X9_62_PENTANOMIAL_new();
- if (!char_two->p.ppBasis) {
+ if (char_two->p.ppBasis == NULL) {
ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE);
goto err;
}
/* for ONB the parameters are (asn1) NULL */
char_two->p.onBasis = ASN1_NULL_new();
- if (!char_two->p.onBasis) {
+ if (char_two->p.onBasis == NULL) {
ECerr(EC_F_EC_ASN1_GROUP2FIELDID, ERR_R_MALLOC_FAILURE);
goto err;
}
}
}
#endif
+ else {
+ ECerr(EC_F_EC_ASN1_GROUP2FIELDID, EC_R_UNSUPPORTED_FIELD);
+ goto err;
+ }
ok = 1;
- err:if (tmp)
- BN_free(tmp);
- return (ok);
+ err:
+ BN_free(tmp);
+ return ok;
}
static int ec_asn1_group2curve(const EC_GROUP *group, X9_62_CURVE *curve)
{
- int ok = 0, nid;
+ int ok = 0;
BIGNUM *tmp_1 = NULL, *tmp_2 = NULL;
- unsigned char *buffer_1 = NULL, *buffer_2 = NULL,
- *a_buf = NULL, *b_buf = NULL;
- size_t len_1, len_2;
- unsigned char char_zero = 0;
+ unsigned char *a_buf = NULL, *b_buf = NULL;
+ size_t len;
if (!group || !curve || !curve->a || !curve->b)
return 0;
goto err;
}
- nid = EC_METHOD_get_field_type(EC_GROUP_method_of(group));
-
/* get a and b */
- if (nid == NID_X9_62_prime_field) {
- if (!EC_GROUP_get_curve_GFp(group, NULL, tmp_1, tmp_2, NULL)) {
- ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_EC_LIB);
- goto err;
- }
- }
-#ifndef OPENSSL_NO_EC2M
- else { /* nid == NID_X9_62_characteristic_two_field */
-
- if (!EC_GROUP_get_curve_GF2m(group, NULL, tmp_1, tmp_2, NULL)) {
- ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_EC_LIB);
- goto err;
- }
+ if (!EC_GROUP_get_curve(group, NULL, tmp_1, tmp_2, NULL)) {
+ ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_EC_LIB);
+ goto err;
}
-#endif
- len_1 = (size_t)BN_num_bytes(tmp_1);
- len_2 = (size_t)BN_num_bytes(tmp_2);
- if (len_1 == 0) {
- /* len_1 == 0 => a == 0 */
- a_buf = &char_zero;
- len_1 = 1;
- } else {
- if ((buffer_1 = OPENSSL_malloc(len_1)) == NULL) {
- ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if ((len_1 = BN_bn2bin(tmp_1, buffer_1)) == 0) {
- ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_BN_LIB);
- goto err;
- }
- a_buf = buffer_1;
+ /*
+ * Per SEC 1, the curve coefficients must be padded up to size. See C.2's
+ * definition of Curve, C.1's definition of FieldElement, and 2.3.5's
+ * definition of how to encode the field elements.
+ */
+ len = ((size_t)EC_GROUP_get_degree(group) + 7) / 8;
+ if ((a_buf = OPENSSL_malloc(len)) == NULL
+ || (b_buf = OPENSSL_malloc(len)) == NULL) {
+ ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE);
+ goto err;
}
-
- if (len_2 == 0) {
- /* len_2 == 0 => b == 0 */
- b_buf = &char_zero;
- len_2 = 1;
- } else {
- if ((buffer_2 = OPENSSL_malloc(len_2)) == NULL) {
- ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if ((len_2 = BN_bn2bin(tmp_2, buffer_2)) == 0) {
- ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_BN_LIB);
- goto err;
- }
- b_buf = buffer_2;
+ if (BN_bn2binpad(tmp_1, a_buf, len) < 0
+ || BN_bn2binpad(tmp_2, b_buf, len) < 0) {
+ ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_BN_LIB);
+ goto err;
}
/* set a and b */
- if (!ASN1_OCTET_STRING_set(curve->a, a_buf, len_1) ||
- !ASN1_OCTET_STRING_set(curve->b, b_buf, len_2)) {
+ if (!ASN1_OCTET_STRING_set(curve->a, a_buf, len)
+ || !ASN1_OCTET_STRING_set(curve->b, b_buf, len)) {
ECerr(EC_F_EC_ASN1_GROUP2CURVE, ERR_R_ASN1_LIB);
goto err;
}
goto err;
}
} else {
- if (curve->seed) {
- ASN1_BIT_STRING_free(curve->seed);
- curve->seed = NULL;
- }
+ ASN1_BIT_STRING_free(curve->seed);
+ curve->seed = NULL;
}
ok = 1;
- err:if (buffer_1)
- OPENSSL_free(buffer_1);
- if (buffer_2)
- OPENSSL_free(buffer_2);
- if (tmp_1)
- BN_free(tmp_1);
- if (tmp_2)
- BN_free(tmp_2);
- return (ok);
+ err:
+ OPENSSL_free(a_buf);
+ OPENSSL_free(b_buf);
+ BN_free(tmp_1);
+ BN_free(tmp_2);
+ return ok;
}
-static ECPARAMETERS *ec_asn1_group2parameters(const EC_GROUP *group,
- ECPARAMETERS *param)
+ECPARAMETERS *EC_GROUP_get_ecparameters(const EC_GROUP *group,
+ ECPARAMETERS *params)
{
- int ok = 0;
size_t len = 0;
ECPARAMETERS *ret = NULL;
- BIGNUM *tmp = NULL;
+ const BIGNUM *tmp;
unsigned char *buffer = NULL;
const EC_POINT *point = NULL;
point_conversion_form_t form;
- if ((tmp = BN_new()) == NULL) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- if (param == NULL) {
+ if (params == NULL) {
if ((ret = ECPARAMETERS_new()) == NULL) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE);
+ ECerr(EC_F_EC_GROUP_GET_ECPARAMETERS, ERR_R_MALLOC_FAILURE);
goto err;
}
} else
- ret = param;
+ ret = params;
/* set the version (always one) */
ret->version = (long)0x1;
/* set the fieldID */
if (!ec_asn1_group2fieldid(group, ret->fieldID)) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB);
+ ECerr(EC_F_EC_GROUP_GET_ECPARAMETERS, ERR_R_EC_LIB);
goto err;
}
/* set the curve */
if (!ec_asn1_group2curve(group, ret->curve)) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB);
+ ECerr(EC_F_EC_GROUP_GET_ECPARAMETERS, ERR_R_EC_LIB);
goto err;
}
/* set the base point */
if ((point = EC_GROUP_get0_generator(group)) == NULL) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, EC_R_UNDEFINED_GENERATOR);
+ ECerr(EC_F_EC_GROUP_GET_ECPARAMETERS, EC_R_UNDEFINED_GENERATOR);
goto err;
}
form = EC_GROUP_get_point_conversion_form(group);
- len = EC_POINT_point2oct(group, point, form, NULL, len, NULL);
+ len = EC_POINT_point2buf(group, point, form, &buffer, NULL);
if (len == 0) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB);
- goto err;
- }
- if ((buffer = OPENSSL_malloc(len)) == NULL) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if (!EC_POINT_point2oct(group, point, form, buffer, len, NULL)) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB);
+ ECerr(EC_F_EC_GROUP_GET_ECPARAMETERS, ERR_R_EC_LIB);
goto err;
}
if (ret->base == NULL && (ret->base = ASN1_OCTET_STRING_new()) == NULL) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if (!ASN1_OCTET_STRING_set(ret->base, buffer, len)) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_ASN1_LIB);
+ OPENSSL_free(buffer);
+ ECerr(EC_F_EC_GROUP_GET_ECPARAMETERS, ERR_R_MALLOC_FAILURE);
goto err;
}
+ ASN1_STRING_set0(ret->base, buffer, len);
/* set the order */
- if (!EC_GROUP_get_order(group, tmp, NULL)) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_EC_LIB);
+ tmp = EC_GROUP_get0_order(group);
+ if (tmp == NULL) {
+ ECerr(EC_F_EC_GROUP_GET_ECPARAMETERS, ERR_R_EC_LIB);
goto err;
}
ret->order = BN_to_ASN1_INTEGER(tmp, ret->order);
if (ret->order == NULL) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_ASN1_LIB);
+ ECerr(EC_F_EC_GROUP_GET_ECPARAMETERS, ERR_R_ASN1_LIB);
goto err;
}
/* set the cofactor (optional) */
- if (EC_GROUP_get_cofactor(group, tmp, NULL)) {
+ tmp = EC_GROUP_get0_cofactor(group);
+ if (tmp != NULL) {
ret->cofactor = BN_to_ASN1_INTEGER(tmp, ret->cofactor);
if (ret->cofactor == NULL) {
- ECerr(EC_F_EC_ASN1_GROUP2PARAMETERS, ERR_R_ASN1_LIB);
+ ECerr(EC_F_EC_GROUP_GET_ECPARAMETERS, ERR_R_ASN1_LIB);
goto err;
}
}
- ok = 1;
+ return ret;
- err:if (!ok) {
- if (ret && !param)
- ECPARAMETERS_free(ret);
- ret = NULL;
- }
- if (tmp)
- BN_free(tmp);
- if (buffer)
- OPENSSL_free(buffer);
- return (ret);
+ err:
+ if (params == NULL)
+ ECPARAMETERS_free(ret);
+ return NULL;
}
-ECPKPARAMETERS *ec_asn1_group2pkparameters(const EC_GROUP *group,
- ECPKPARAMETERS *params)
+ECPKPARAMETERS *EC_GROUP_get_ecpkparameters(const EC_GROUP *group,
+ ECPKPARAMETERS *params)
{
int ok = 1, tmp;
ECPKPARAMETERS *ret = params;
if (ret == NULL) {
if ((ret = ECPKPARAMETERS_new()) == NULL) {
- ECerr(EC_F_EC_ASN1_GROUP2PKPARAMETERS, ERR_R_MALLOC_FAILURE);
+ ECerr(EC_F_EC_GROUP_GET_ECPKPARAMETERS, ERR_R_MALLOC_FAILURE);
return NULL;
}
} else {
- if (ret->type == 0 && ret->value.named_curve)
+ if (ret->type == 0)
ASN1_OBJECT_free(ret->value.named_curve);
else if (ret->type == 1 && ret->value.parameters)
ECPARAMETERS_free(ret->value.parameters);
if (EC_GROUP_get_asn1_flag(group)) {
/*
- * use the asn1 OID to describe the the elliptic curve parameters
+ * use the asn1 OID to describe the elliptic curve parameters
*/
tmp = EC_GROUP_get_curve_name(group);
if (tmp) {
if ((ret->value.named_curve = OBJ_nid2obj(tmp)) == NULL)
ok = 0;
} else
- /* we don't kmow the nid => ERROR */
+ /* we don't know the nid => ERROR */
ok = 0;
} else {
/* use the ECPARAMETERS structure */
ret->type = 1;
if ((ret->value.parameters =
- ec_asn1_group2parameters(group, NULL)) == NULL)
+ EC_GROUP_get_ecparameters(group, NULL)) == NULL)
ok = 0;
}
return ret;
}
-static EC_GROUP *ec_asn1_parameters2group(const ECPARAMETERS *params)
+EC_GROUP *EC_GROUP_new_from_ecparameters(const ECPARAMETERS *params)
{
int ok = 0, tmp;
EC_GROUP *ret = NULL;
if (!params->fieldID || !params->fieldID->fieldType ||
!params->fieldID->p.ptr) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_ASN1_ERROR);
goto err;
}
- /* now extract the curve parameters a and b */
+ /*
+ * Now extract the curve parameters a and b. Note that, although SEC 1
+ * specifies the length of their encodings, historical versions of OpenSSL
+ * encoded them incorrectly, so we must accept any length for backwards
+ * compatibility.
+ */
if (!params->curve || !params->curve->a ||
!params->curve->a->data || !params->curve->b ||
!params->curve->b->data) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_ASN1_ERROR);
goto err;
}
a = BN_bin2bn(params->curve->a->data, params->curve->a->length, NULL);
if (a == NULL) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_BN_LIB);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_BN_LIB);
goto err;
}
b = BN_bin2bn(params->curve->b->data, params->curve->b->length, NULL);
if (b == NULL) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_BN_LIB);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_BN_LIB);
goto err;
}
if (tmp == NID_X9_62_characteristic_two_field)
#ifdef OPENSSL_NO_EC2M
{
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_GF2M_NOT_SUPPORTED);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_GF2M_NOT_SUPPORTED);
goto err;
}
#else
field_bits = char_two->m;
if (field_bits > OPENSSL_ECC_MAX_FIELD_BITS) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_FIELD_TOO_LARGE);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_FIELD_TOO_LARGE);
goto err;
}
if ((p = BN_new()) == NULL) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_MALLOC_FAILURE);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_MALLOC_FAILURE);
goto err;
}
long tmp_long;
if (!char_two->p.tpBasis) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_ASN1_ERROR);
goto err;
}
tmp_long = ASN1_INTEGER_get(char_two->p.tpBasis);
if (!(char_two->m > tmp_long && tmp_long > 0)) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP,
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS,
EC_R_INVALID_TRINOMIAL_BASIS);
goto err;
}
penta = char_two->p.ppBasis;
if (!penta) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_ASN1_ERROR);
goto err;
}
if (!
(char_two->m > penta->k3 && penta->k3 > penta->k2
&& penta->k2 > penta->k1 && penta->k1 > 0)) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP,
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS,
EC_R_INVALID_PENTANOMIAL_BASIS);
goto err;
}
if (!BN_set_bit(p, 0))
goto err;
} else if (tmp == NID_X9_62_onBasis) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_NOT_IMPLEMENTED);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_NOT_IMPLEMENTED);
goto err;
} else { /* error */
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_ASN1_ERROR);
goto err;
}
/* we have a curve over a prime field */
/* extract the prime number */
if (!params->fieldID->p.prime) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_ASN1_ERROR);
goto err;
}
p = ASN1_INTEGER_to_BN(params->fieldID->p.prime, NULL);
if (p == NULL) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_ASN1_LIB);
goto err;
}
if (BN_is_negative(p) || BN_is_zero(p)) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_FIELD);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_INVALID_FIELD);
goto err;
}
field_bits = BN_num_bits(p);
if (field_bits > OPENSSL_ECC_MAX_FIELD_BITS) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_FIELD_TOO_LARGE);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_FIELD_TOO_LARGE);
goto err;
}
/* create the EC_GROUP structure */
ret = EC_GROUP_new_curve_GFp(p, a, b, NULL);
} else {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_FIELD);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_INVALID_FIELD);
goto err;
}
if (ret == NULL) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_EC_LIB);
goto err;
}
/* extract seed (optional) */
if (params->curve->seed != NULL) {
- if (ret->seed != NULL)
- OPENSSL_free(ret->seed);
- if (!(ret->seed = OPENSSL_malloc(params->curve->seed->length))) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_MALLOC_FAILURE);
+ OPENSSL_free(ret->seed);
+ if ((ret->seed = OPENSSL_malloc(params->curve->seed->length)) == NULL) {
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_MALLOC_FAILURE);
goto err;
}
memcpy(ret->seed, params->curve->seed->data,
}
if (!params->order || !params->base || !params->base->data) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_ASN1_ERROR);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_ASN1_ERROR);
goto err;
}
/* extract the ec point */
if (!EC_POINT_oct2point(ret, point, params->base->data,
params->base->length, NULL)) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_EC_LIB);
goto err;
}
/* extract the order */
if ((a = ASN1_INTEGER_to_BN(params->order, a)) == NULL) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_ASN1_LIB);
goto err;
}
if (BN_is_negative(a) || BN_is_zero(a)) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_GROUP_ORDER);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_INVALID_GROUP_ORDER);
goto err;
}
if (BN_num_bits(a) > (int)field_bits + 1) { /* Hasse bound */
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, EC_R_INVALID_GROUP_ORDER);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, EC_R_INVALID_GROUP_ORDER);
goto err;
}
/* extract the cofactor (optional) */
if (params->cofactor == NULL) {
- if (b) {
- BN_free(b);
- b = NULL;
- }
+ BN_free(b);
+ b = NULL;
} else if ((b = ASN1_INTEGER_to_BN(params->cofactor, b)) == NULL) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_ASN1_LIB);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_ASN1_LIB);
goto err;
}
/* set the generator, order and cofactor (if present) */
if (!EC_GROUP_set_generator(ret, point, a, b)) {
- ECerr(EC_F_EC_ASN1_PARAMETERS2GROUP, ERR_R_EC_LIB);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPARAMETERS, ERR_R_EC_LIB);
goto err;
}
ok = 1;
- err:if (!ok) {
- if (ret)
- EC_GROUP_clear_free(ret);
+ err:
+ if (!ok) {
+ EC_GROUP_clear_free(ret);
ret = NULL;
}
- if (p)
- BN_free(p);
- if (a)
- BN_free(a);
- if (b)
- BN_free(b);
- if (point)
- EC_POINT_free(point);
- return (ret);
+ BN_free(p);
+ BN_free(a);
+ BN_free(b);
+ EC_POINT_free(point);
+ return ret;
}
-EC_GROUP *ec_asn1_pkparameters2group(const ECPKPARAMETERS *params)
+EC_GROUP *EC_GROUP_new_from_ecpkparameters(const ECPKPARAMETERS *params)
{
EC_GROUP *ret = NULL;
int tmp = 0;
if (params == NULL) {
- ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, EC_R_MISSING_PARAMETERS);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPKPARAMETERS, EC_R_MISSING_PARAMETERS);
return NULL;
}
if (params->type == 0) { /* the curve is given by an OID */
tmp = OBJ_obj2nid(params->value.named_curve);
if ((ret = EC_GROUP_new_by_curve_name(tmp)) == NULL) {
- ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP,
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPKPARAMETERS,
EC_R_EC_GROUP_NEW_BY_NAME_FAILURE);
return NULL;
}
EC_GROUP_set_asn1_flag(ret, OPENSSL_EC_NAMED_CURVE);
} else if (params->type == 1) { /* the parameters are given by a
* ECPARAMETERS structure */
- ret = ec_asn1_parameters2group(params->value.parameters);
+ ret = EC_GROUP_new_from_ecparameters(params->value.parameters);
if (!ret) {
- ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, ERR_R_EC_LIB);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPKPARAMETERS, ERR_R_EC_LIB);
return NULL;
}
- EC_GROUP_set_asn1_flag(ret, 0x0);
+ EC_GROUP_set_asn1_flag(ret, OPENSSL_EC_EXPLICIT_CURVE);
} else if (params->type == 2) { /* implicitlyCA */
return NULL;
} else {
- ECerr(EC_F_EC_ASN1_PKPARAMETERS2GROUP, EC_R_ASN1_ERROR);
+ ECerr(EC_F_EC_GROUP_NEW_FROM_ECPKPARAMETERS, EC_R_ASN1_ERROR);
return NULL;
}
{
EC_GROUP *group = NULL;
ECPKPARAMETERS *params = NULL;
+ const unsigned char *p = *in;
- if ((params = d2i_ECPKPARAMETERS(NULL, in, len)) == NULL) {
+ if ((params = d2i_ECPKPARAMETERS(NULL, &p, len)) == NULL) {
ECerr(EC_F_D2I_ECPKPARAMETERS, EC_R_D2I_ECPKPARAMETERS_FAILURE);
ECPKPARAMETERS_free(params);
return NULL;
}
- if ((group = ec_asn1_pkparameters2group(params)) == NULL) {
+ if ((group = EC_GROUP_new_from_ecpkparameters(params)) == NULL) {
ECerr(EC_F_D2I_ECPKPARAMETERS, EC_R_PKPARAMETERS2GROUP_FAILURE);
ECPKPARAMETERS_free(params);
return NULL;
}
- if (a && *a)
+ if (a) {
EC_GROUP_clear_free(*a);
- if (a)
*a = group;
+ }
ECPKPARAMETERS_free(params);
- return (group);
+ *in = p;
+ return group;
}
int i2d_ECPKParameters(const EC_GROUP *a, unsigned char **out)
{
int ret = 0;
- ECPKPARAMETERS *tmp = ec_asn1_group2pkparameters(a, NULL);
+ ECPKPARAMETERS *tmp = EC_GROUP_get_ecpkparameters(a, NULL);
if (tmp == NULL) {
ECerr(EC_F_I2D_ECPKPARAMETERS, EC_R_GROUP2PKPARAMETERS_FAILURE);
return 0;
return 0;
}
ECPKPARAMETERS_free(tmp);
- return (ret);
+ return ret;
}
/* some EC_KEY functions */
EC_KEY *d2i_ECPrivateKey(EC_KEY **a, const unsigned char **in, long len)
{
- int ok = 0;
EC_KEY *ret = NULL;
EC_PRIVATEKEY *priv_key = NULL;
+ const unsigned char *p = *in;
- if ((priv_key = d2i_EC_PRIVATEKEY(NULL, in, len)) == NULL) {
+ if ((priv_key = d2i_EC_PRIVATEKEY(NULL, &p, len)) == NULL) {
ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB);
return NULL;
}
ret = *a;
if (priv_key->parameters) {
- if (ret->group)
- EC_GROUP_clear_free(ret->group);
- ret->group = ec_asn1_pkparameters2group(priv_key->parameters);
+ EC_GROUP_clear_free(ret->group);
+ ret->group = EC_GROUP_new_from_ecpkparameters(priv_key->parameters);
}
if (ret->group == NULL) {
ret->version = priv_key->version;
if (priv_key->privateKey) {
- ret->priv_key = BN_bin2bn(ASN1_STRING_data(priv_key->privateKey),
- ASN1_STRING_length(priv_key->privateKey),
- ret->priv_key);
- if (ret->priv_key == NULL) {
- ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_BN_LIB);
+ ASN1_OCTET_STRING *pkey = priv_key->privateKey;
+ if (EC_KEY_oct2priv(ret, ASN1_STRING_get0_data(pkey),
+ ASN1_STRING_length(pkey)) == 0)
goto err;
- }
} else {
ECerr(EC_F_D2I_ECPRIVATEKEY, EC_R_MISSING_PRIVATE_KEY);
goto err;
}
- if (ret->pub_key)
- EC_POINT_clear_free(ret->pub_key);
+ EC_POINT_clear_free(ret->pub_key);
ret->pub_key = EC_POINT_new(ret->group);
if (ret->pub_key == NULL) {
ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB);
const unsigned char *pub_oct;
int pub_oct_len;
- pub_oct = ASN1_STRING_data(priv_key->publicKey);
+ pub_oct = ASN1_STRING_get0_data(priv_key->publicKey);
pub_oct_len = ASN1_STRING_length(priv_key->publicKey);
- /*
- * The first byte - point conversion form - must be present.
- */
- if (pub_oct_len <= 0) {
- ECerr(EC_F_D2I_ECPRIVATEKEY, EC_R_BUFFER_TOO_SMALL);
- goto err;
- }
- /* Save the point conversion form. */
- ret->conv_form = (point_conversion_form_t) (pub_oct[0] & ~0x01);
- if (!EC_POINT_oct2point(ret->group, ret->pub_key,
- pub_oct, (size_t)(pub_oct_len), NULL)) {
+ if (!EC_KEY_oct2key(ret, pub_oct, pub_oct_len, NULL)) {
ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB);
goto err;
}
} else {
- if (!EC_POINT_mul
- (ret->group, ret->pub_key, ret->priv_key, NULL, NULL, NULL)) {
- ECerr(EC_F_D2I_ECPRIVATEKEY, ERR_R_EC_LIB);
- goto err;
- }
+ if (ret->group->meth->keygenpub == NULL
+ || ret->group->meth->keygenpub(ret) == 0)
+ goto err;
/* Remember the original private-key-only encoding. */
ret->enc_flag |= EC_PKEY_NO_PUBKEY;
}
if (a)
*a = ret;
- ok = 1;
- err:
- if (!ok) {
- if (ret && (a == NULL || *a != ret))
- EC_KEY_free(ret);
- ret = NULL;
- }
-
- if (priv_key)
- EC_PRIVATEKEY_free(priv_key);
+ EC_PRIVATEKEY_free(priv_key);
+ *in = p;
+ return ret;
- return (ret);
+ err:
+ if (a == NULL || *a != ret)
+ EC_KEY_free(ret);
+ EC_PRIVATEKEY_free(priv_key);
+ return NULL;
}
-int i2d_ECPrivateKey(EC_KEY *a, unsigned char **out)
+int i2d_ECPrivateKey(const EC_KEY *a, unsigned char **out)
{
int ret = 0, ok = 0;
- unsigned char *buffer = NULL;
- size_t buf_len = 0, tmp_len;
+ unsigned char *priv= NULL, *pub= NULL;
+ size_t privlen = 0, publen = 0;
+
EC_PRIVATEKEY *priv_key = NULL;
- if (a == NULL || a->group == NULL || a->priv_key == NULL ||
+ if (a == NULL || a->group == NULL ||
(!(a->enc_flag & EC_PKEY_NO_PUBKEY) && a->pub_key == NULL)) {
ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_PASSED_NULL_PARAMETER);
goto err;
priv_key->version = a->version;
- buf_len = (size_t)BN_num_bytes(a->priv_key);
- buffer = OPENSSL_malloc(buf_len);
- if (buffer == NULL) {
- ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE);
- goto err;
- }
+ privlen = EC_KEY_priv2buf(a, &priv);
- if (!BN_bn2bin(a->priv_key, buffer)) {
- ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_BN_LIB);
+ if (privlen == 0) {
+ ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_EC_LIB);
goto err;
}
- if (!ASN1_OCTET_STRING_set(priv_key->privateKey, buffer, buf_len)) {
- ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_ASN1_LIB);
- goto err;
- }
+ ASN1_STRING_set0(priv_key->privateKey, priv, privlen);
+ priv = NULL;
if (!(a->enc_flag & EC_PKEY_NO_PARAMETERS)) {
if ((priv_key->parameters =
- ec_asn1_group2pkparameters(a->group,
+ EC_GROUP_get_ecpkparameters(a->group,
priv_key->parameters)) == NULL) {
ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_EC_LIB);
goto err;
goto err;
}
- tmp_len = EC_POINT_point2oct(a->group, a->pub_key,
- a->conv_form, NULL, 0, NULL);
+ publen = EC_KEY_key2buf(a, a->conv_form, &pub, NULL);
- if (tmp_len > buf_len) {
- unsigned char *tmp_buffer = OPENSSL_realloc(buffer, tmp_len);
- if (!tmp_buffer) {
- ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- buffer = tmp_buffer;
- buf_len = tmp_len;
- }
-
- if (!EC_POINT_point2oct(a->group, a->pub_key,
- a->conv_form, buffer, buf_len, NULL)) {
+ if (publen == 0) {
ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_EC_LIB);
goto err;
}
priv_key->publicKey->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
priv_key->publicKey->flags |= ASN1_STRING_FLAG_BITS_LEFT;
- if (!ASN1_BIT_STRING_set(priv_key->publicKey, buffer, buf_len)) {
- ECerr(EC_F_I2D_ECPRIVATEKEY, ERR_R_ASN1_LIB);
- goto err;
- }
+ ASN1_STRING_set0(priv_key->publicKey, pub, publen);
+ pub = NULL;
}
if ((ret = i2d_EC_PRIVATEKEY(priv_key, out)) == 0) {
}
ok = 1;
err:
- if (buffer)
- OPENSSL_free(buffer);
- if (priv_key)
- EC_PRIVATEKEY_free(priv_key);
+ OPENSSL_clear_free(priv, privlen);
+ OPENSSL_free(pub);
+ EC_PRIVATEKEY_free(priv_key);
return (ok ? ret : 0);
}
-int i2d_ECParameters(EC_KEY *a, unsigned char **out)
+int i2d_ECParameters(const EC_KEY *a, unsigned char **out)
{
if (a == NULL) {
ECerr(EC_F_I2D_ECPARAMETERS, ERR_R_PASSED_NULL_PARAMETER);
if (a == NULL || (*a) == NULL || (*a)->group == NULL) {
/*
- * sorry, but a EC_GROUP-structur is necessary to set the public key
+ * sorry, but a EC_GROUP-structure is necessary to set the public key
*/
ECerr(EC_F_O2I_ECPUBLICKEY, ERR_R_PASSED_NULL_PARAMETER);
return 0;
}
ret = *a;
- if (ret->pub_key == NULL &&
- (ret->pub_key = EC_POINT_new(ret->group)) == NULL) {
- ECerr(EC_F_O2I_ECPUBLICKEY, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- if (!EC_POINT_oct2point(ret->group, ret->pub_key, *in, len, NULL)) {
+ if (!EC_KEY_oct2key(ret, *in, len, NULL)) {
ECerr(EC_F_O2I_ECPUBLICKEY, ERR_R_EC_LIB);
return 0;
}
- /* save the point conversion form */
- ret->conv_form = (point_conversion_form_t) (*in[0] & ~0x01);
*in += len;
return ret;
}
-int i2o_ECPublicKey(EC_KEY *a, unsigned char **out)
+int i2o_ECPublicKey(const EC_KEY *a, unsigned char **out)
{
size_t buf_len = 0;
int new_buffer = 0;
*out += buf_len;
return buf_len;
}
+
+DECLARE_ASN1_FUNCTIONS(ECDSA_SIG)
+DECLARE_ASN1_ENCODE_FUNCTIONS_name(ECDSA_SIG, ECDSA_SIG)
+
+ECDSA_SIG *ECDSA_SIG_new(void)
+{
+ ECDSA_SIG *sig = OPENSSL_zalloc(sizeof(*sig));
+ if (sig == NULL)
+ ECerr(EC_F_ECDSA_SIG_NEW, ERR_R_MALLOC_FAILURE);
+ return sig;
+}
+
+void ECDSA_SIG_free(ECDSA_SIG *sig)
+{
+ if (sig == NULL)
+ return;
+ BN_clear_free(sig->r);
+ BN_clear_free(sig->s);
+ OPENSSL_free(sig);
+}
+
+ECDSA_SIG *d2i_ECDSA_SIG(ECDSA_SIG **psig, const unsigned char **ppin, long len)
+{
+ ECDSA_SIG *sig;
+
+ if (len < 0)
+ return NULL;
+ if (psig != NULL && *psig != NULL) {
+ sig = *psig;
+ } else {
+ sig = ECDSA_SIG_new();
+ if (sig == NULL)
+ return NULL;
+ }
+ if (sig->r == NULL)
+ sig->r = BN_new();
+ if (sig->s == NULL)
+ sig->s = BN_new();
+ if (decode_der_dsa_sig(sig->r, sig->s, ppin, (size_t)len) == 0) {
+ if (psig == NULL || *psig == NULL)
+ ECDSA_SIG_free(sig);
+ return NULL;
+ }
+ if (psig != NULL && *psig == NULL)
+ *psig = sig;
+ return sig;
+}
+
+int i2d_ECDSA_SIG(const ECDSA_SIG *sig, unsigned char **ppout)
+{
+ unsigned char *buf = NULL;
+ unsigned char *tmp;
+ unsigned char **pp = NULL;
+ size_t len;
+ size_t encoded_len;
+
+ if (ppout != NULL && *ppout == NULL) {
+ if ((len = encode_der_dsa_sig(sig->r, sig->s, NULL, SIZE_MAX)) == 0)
+ return -1;
+ buf = OPENSSL_malloc(len);
+ if (buf == NULL)
+ return -1;
+ tmp = buf;
+ pp = &tmp;
+ } else {
+ len = SIZE_MAX;
+ pp = ppout;
+ }
+ if ((encoded_len = encode_der_dsa_sig(sig->r, sig->s, pp, len)) == 0) {
+ OPENSSL_free(buf);
+ return -1;
+ }
+ if (buf != NULL)
+ *ppout = buf;
+ return (int)encoded_len;
+}
+
+void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps)
+{
+ if (pr != NULL)
+ *pr = sig->r;
+ if (ps != NULL)
+ *ps = sig->s;
+}
+
+const BIGNUM *ECDSA_SIG_get0_r(const ECDSA_SIG *sig)
+{
+ return sig->r;
+}
+
+const BIGNUM *ECDSA_SIG_get0_s(const ECDSA_SIG *sig)
+{
+ return sig->s;
+}
+
+int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s)
+{
+ if (r == NULL || s == NULL)
+ return 0;
+ BN_clear_free(sig->r);
+ BN_clear_free(sig->s);
+ sig->r = r;
+ sig->s = s;
+ return 1;
+}
+
+int ECDSA_size(const EC_KEY *r)
+{
+ int ret, i;
+ ASN1_INTEGER bs;
+ unsigned char buf[4];
+ const EC_GROUP *group;
+
+ if (r == NULL)
+ return 0;
+ group = EC_KEY_get0_group(r);
+ if (group == NULL)
+ return 0;
+
+ i = EC_GROUP_order_bits(group);
+ if (i == 0)
+ return 0;
+ bs.length = (i + 7) / 8;
+ bs.data = buf;
+ bs.type = V_ASN1_INTEGER;
+ /* If the top bit is set the asn1 encoding is 1 larger. */
+ buf[0] = 0xff;
+
+ i = i2d_ASN1_INTEGER(&bs, NULL);
+ i += i; /* r and s */
+ ret = ASN1_object_size(1, i, V_ASN1_SEQUENCE);
+ return ret;
+}
projects / openssl.git / blobdiff