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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 "crypto/s2n_tls13_keys.h"
#include <string.h>
#include "crypto/s2n_hkdf.h"
#include "crypto/s2n_hmac.h"
#include "s2n_test.h"
#include "stuffer/s2n_stuffer.h"
#include "testlib/s2n_testlib.h"
#include "tls/s2n_tls13_handshake.h"
#include "utils/s2n_blob.h"
#include "utils/s2n_safety.h"
int main(int argc, char **argv)
{
BEGIN_TEST();
/*
* Test s2n_tls13_update_application_traffic_secret
*
* This test checks the new secret produced by the s2n_tls13_update_application_traffic_secret
* is the same one that is produced by openssl when starting with the same application secret.
*/
{
/* KeyUpdate Vectors from Openssl s_client implementation of KeyUpdate. The ciphersuite
* that produced this secret was s2n_tls13_aes_256_gcm_sha384.
*/
S2N_BLOB_FROM_HEX(application_secret,
"4bc28934ddd802b00f479e14a72d7725dab45d32b3b145f29"
"e4c5b56677560eb5236b168c71c5c75aa52f3e20ee89bfb");
S2N_BLOB_FROM_HEX(updated_application_secret,
"ee85dd54781bd4d8a100589a9fe6ac9a3797b811e977f549cd"
"531be2441d7c63e2b9729d145c11d84af35957727565a4");
struct s2n_connection *server_conn;
EXPECT_NOT_NULL(server_conn = s2n_connection_new(S2N_SERVER));
server_conn->actual_protocol_version = S2N_TLS13;
server_conn->secure->cipher_suite = &s2n_tls13_aes_256_gcm_sha384;
/* get tls13 key context */
s2n_tls13_connection_keys(keys, server_conn);
s2n_stack_blob(app_secret_update, keys.size, S2N_TLS13_SECRET_MAX_LEN);
/* Derives next generation of traffic secret */
EXPECT_SUCCESS(s2n_tls13_update_application_traffic_secret(&keys, &application_secret, &app_secret_update));
/* Check the new secret is what was expected */
S2N_BLOB_EXPECT_EQUAL(app_secret_update, updated_application_secret);
EXPECT_SUCCESS(s2n_connection_free(server_conn));
};
END_TEST();
}
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