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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_rsa_pss.h"
#include "s2n_test.h"
#include "testlib/s2n_testlib.h"
#include "tls/s2n_tls.h"
static uint8_t s2n_noop_verify_host_fn(const char *name, size_t len, void *data)
{
return 1;
}
static S2N_RESULT s2n_test_load_certificate(struct s2n_cert_chain_and_key **chain_out,
char *chain_pem_out, const char *chain_pem_path, const char *key_pem_path)
{
RESULT_ENSURE_REF(chain_out);
char key_pem[S2N_MAX_TEST_PEM_SIZE] = { 0 };
RESULT_GUARD_POSIX(s2n_read_test_pem(chain_pem_path, chain_pem_out, S2N_MAX_TEST_PEM_SIZE));
RESULT_GUARD_POSIX(s2n_read_test_pem(key_pem_path, key_pem, S2N_MAX_TEST_PEM_SIZE));
*chain_out = s2n_cert_chain_and_key_new();
RESULT_ENSURE_REF(*chain_out);
RESULT_GUARD_POSIX(s2n_cert_chain_and_key_load_pem(*chain_out, chain_pem_out, key_pem));
return S2N_RESULT_OK;
}
int main(int argc, char **argv)
{
BEGIN_TEST();
if (!s2n_is_rsa_pss_certs_supported() || !s2n_is_tls13_fully_supported()) {
END_TEST();
}
const uint8_t test_versions[] = { S2N_TLS13, S2N_TLS12, S2N_TLS11, S2N_TLS10 };
struct {
const char *cert;
const char *key;
uint8_t min_version;
} test_certs[] = {
{
.cert = S2N_RSA_2048_PKCS1_SHA256_CERT_CHAIN,
.key = S2N_RSA_2048_PKCS1_SHA256_CERT_KEY,
},
{
.cert = S2N_ECDSA_P384_PKCS1_CERT_CHAIN,
.key = S2N_ECDSA_P384_PKCS1_KEY,
},
{
.cert = S2N_ECDSA_P512_CERT_CHAIN,
.key = S2N_ECDSA_P512_KEY,
},
{
.cert = S2N_RSA_PSS_2048_SHA256_LEAF_CERT,
.key = S2N_RSA_PSS_2048_SHA256_LEAF_KEY,
.min_version = S2N_TLS12,
},
};
for (size_t cert_i = 0; cert_i < s2n_array_len(test_certs); cert_i++) {
DEFER_CLEANUP(struct s2n_cert_chain_and_key *chain = NULL,
s2n_cert_chain_and_key_ptr_free);
char pem[S2N_MAX_TEST_PEM_SIZE] = { 0 };
EXPECT_OK(s2n_test_load_certificate(&chain, pem,
test_certs[cert_i].cert, test_certs[cert_i].key));
for (size_t version_i = 0; version_i < s2n_array_len(test_versions); version_i++) {
uint8_t version = test_versions[version_i];
bool expect_success = (version >= test_certs[cert_i].min_version);
/* We intentionally use the default policies.
* The default policies should support all certificate types.
*/
const char *security_policy = "default";
if (version >= S2N_TLS13) {
security_policy = "default_tls13";
} else if (version < S2N_TLS12) {
/* The default policies don't support legacy versions */
security_policy = "test_all";
}
DEFER_CLEANUP(struct s2n_config *config = s2n_config_new(), s2n_config_ptr_free);
EXPECT_NOT_NULL(config);
EXPECT_SUCCESS(s2n_config_add_cert_chain_and_key_to_store(config, chain));
EXPECT_SUCCESS(s2n_config_add_pem_to_trust_store(config, pem));
EXPECT_SUCCESS(s2n_config_set_verify_host_callback(config, s2n_noop_verify_host_fn, NULL));
EXPECT_SUCCESS(s2n_config_set_max_blinding_delay(config, 0));
EXPECT_SUCCESS(s2n_config_set_cipher_preferences(config, security_policy));
DEFER_CLEANUP(struct s2n_connection *server = s2n_connection_new(S2N_SERVER),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(server);
EXPECT_SUCCESS(s2n_connection_set_config(server, config));
server->server_protocol_version = version;
DEFER_CLEANUP(struct s2n_connection *client = s2n_connection_new(S2N_CLIENT),
s2n_connection_ptr_free);
EXPECT_NOT_NULL(client);
EXPECT_SUCCESS(s2n_connection_set_config(client, config));
client->client_protocol_version = version;
DEFER_CLEANUP(struct s2n_test_io_pair io_pair = { 0 }, s2n_io_pair_close);
EXPECT_SUCCESS(s2n_io_pair_init_non_blocking(&io_pair));
EXPECT_SUCCESS(s2n_connections_set_io_pair(client, server, &io_pair));
bool handshake_success =
(s2n_negotiate_test_server_and_client(server, client) == S2N_SUCCESS);
if (handshake_success) {
EXPECT_EQUAL(server->actual_protocol_version, version);
EXPECT_EQUAL(client->actual_protocol_version, version);
}
const char *error_message = "Handshake failed";
if (!expect_success) {
error_message = "Handshake unexpectedly succeeded";
}
if (handshake_success != expect_success) {
fprintf(stderr, "%s version=%i cert=%s\n",
error_message, version, test_certs[cert_i].cert);
FAIL_MSG(error_message);
}
}
}
END_TEST();
}
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