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/*
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
#include "stuffer/s2n_stuffer.h"
#include "testlib/s2n_testlib.h"
#include "utils/s2n_safety.h"
int s2n_public_ecc_keys_are_equal(struct s2n_ecc_evp_params *params_1, struct s2n_ecc_evp_params *params_2)
{
POSIX_ENSURE_REF(params_1);
POSIX_ENSURE_REF(params_2);
struct s2n_stuffer point_stuffer = { 0 };
int size = params_1->negotiated_curve->share_size;
if (params_1->negotiated_curve != params_2->negotiated_curve) {
return 0;
}
POSIX_GUARD(s2n_stuffer_alloc(&point_stuffer, size * 2));
uint8_t *point_1 = s2n_stuffer_raw_write(&point_stuffer, 0);
POSIX_GUARD(s2n_ecc_evp_write_params_point(params_1, &point_stuffer));
uint8_t *point_2 = s2n_stuffer_raw_write(&point_stuffer, 0);
POSIX_GUARD(s2n_ecc_evp_write_params_point(params_2, &point_stuffer));
int result = memcmp(point_1, point_2, size) == 0;
POSIX_GUARD(s2n_stuffer_free(&point_stuffer));
return result;
}
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