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/***************************************************************************/
/* Copyright (c) 2024 Microsoft Corporation */
/* Copyright (c) 2026 Eclipse ThreadX contributors */
/* */
/* This program and the accompanying materials are made available under */
/* the terms of the MIT License which is available at */
/* https://opensource.org/licenses/MIT. */
/* */
/* SPDX-License-Identifier: MIT */
/***************************************************************************/
#include <stdio.h>
#include "nx_secure_tls_api.h"
#include "nx_crypto.h"
#include "tls_test_utility.h"
#include "ecc_certs.c"
#include "nx_crypto_ecdh.h"
#include "nx_secure_tls_test_init_functions.h"
extern void test_control_return(UINT status);
static NX_SECURE_TLS_SESSION session;
static NX_CRYPTO_METHOD fake_public_cipher;
static NX_CRYPTO_METHOD fake_prf_method;
static NX_CRYPTO_METHOD fake_session_cipher;
static NX_SECURE_TLS_CIPHERSUITE_INFO fake_tls_session_ciphersuite;
static void NX_Secure_TLS_generate_key_coverage_test();
/* Test cases all taken from RFC 4231. Relevant section numbers included in comments. */
#ifdef CTEST
void test_application_define(void *first_unused_memory);
void test_application_define(void *first_unused_memory)
#else
void nx_secure_tls_generate_key_coverage_test_application_define(void *first_unused_memory)
#endif
{
/* Print out test information banner. */
printf("NetX Secure Test: TLS Generate Key Test..............................");
#if (!(defined(NX_SECURE_TLS_ENABLE_TLS_1_0) || defined(NX_SECURE_TLS_ENABLE_TLS_1_1)))
NX_Secure_TLS_generate_key_coverage_test();
printf("SUCCESS!\n");
#else
printf("N/A\n");
#endif
test_control_return(0);
}
static int call_count = 0;
static int iteration = 0;
static UINT fake_init(struct NX_CRYPTO_METHOD_STRUCT *method,
UCHAR *key, NX_CRYPTO_KEY_SIZE key_size_in_bits,
VOID **handler,
VOID *crypto_metadata,
ULONG crypto_metadata_size)
{
call_count++;
if(call_count == iteration)
return(NX_CRYPTO_NOT_SUCCESSFUL);
return(NX_CRYPTO_SUCCESS);
}
static UINT fake_operation(UINT op, /* Encrypt, Decrypt, Authenticate */
VOID *handler, /* Crypto handler */
struct NX_CRYPTO_METHOD_STRUCT *method,
UCHAR *key,
NX_CRYPTO_KEY_SIZE key_size_in_bits,
UCHAR *input,
ULONG input_length_in_byte,
UCHAR *iv_ptr,
UCHAR *output,
ULONG output_length_in_byte,
VOID *crypto_metadata,
ULONG crypto_metadata_size,
VOID *packet_ptr,
VOID (*nx_crypto_hw_process_callback)(VOID *packet_ptr, UINT status))
{
call_count++;
if(call_count == iteration)
return(NX_CRYPTO_NOT_SUCCESSFUL);
return(NX_CRYPTO_SUCCESS);
}
static UINT fake_cleanup(VOID *crypto_metadata)
{
call_count++;
if(call_count == iteration)
return(NX_CRYPTO_NOT_SUCCESSFUL);
return(NX_CRYPTO_SUCCESS);
}
static UCHAR handshake_hash_scratch[100];
#define SHA256_METADATA_SIZE 10
static UCHAR sha256_metadata[SHA256_METADATA_SIZE];
TEST(NX_Secure_TLS, generate_key_coverage_test)
{
UINT status;
nx_secure_tls_test_init_functions(&session);
session.nx_secure_tls_handshake_hash.nx_secure_tls_handshake_hash_scratch = handshake_hash_scratch;
session.nx_secure_tls_handshake_hash.nx_secure_tls_handshake_hash_sha256_metadata = sha256_metadata;
session.nx_secure_tls_handshake_hash.nx_secure_tls_handshake_hash_sha256_metadata_size = SHA256_METADATA_SIZE;
/* Cover line 118 */
session.nx_secure_tls_session_ciphersuite = NX_NULL;
status = _nx_secure_tls_generate_keys(&session);
EXPECT_EQ(NX_SECURE_TLS_UNKNOWN_CIPHERSUITE, status);
/* Cover line 159/183/189 */
session.nx_secure_tls_session_ciphersuite = &fake_tls_session_ciphersuite;
fake_tls_session_ciphersuite.nx_secure_tls_public_cipher = &fake_public_cipher;
fake_public_cipher.nx_crypto_algorithm = NX_CRYPTO_KEY_EXCHANGE_RSA;
fake_tls_session_ciphersuite.nx_secure_tls_session_cipher = &fake_session_cipher;
fake_session_cipher.nx_crypto_key_size_in_bits = 8;
fake_session_cipher.nx_crypto_IV_size_in_bits = 8;
session.nx_secure_tls_protocol_version = NX_SECURE_TLS_VERSION_TLS_1_1;
status = _nx_secure_tls_generate_keys(&session);
EXPECT_EQ(NX_SECURE_TLS_PROTOCOL_VERSION_CHANGED, status);
/* Cover line 193 */
fake_tls_session_ciphersuite.nx_secure_tls_prf = &fake_prf_method;
session.nx_secure_tls_protocol_version = NX_SECURE_TLS_VERSION_TLS_1_2;
fake_prf_method.nx_crypto_init = NX_NULL;
fake_prf_method.nx_crypto_operation = NX_NULL;
fake_prf_method.nx_crypto_cleanup = NX_NULL;
status = _nx_secure_tls_generate_keys(&session);
EXPECT_EQ(NX_SECURE_TLS_SUCCESS, status);
fake_prf_method.nx_crypto_init = fake_init;
fake_prf_method.nx_crypto_operation = fake_operation;
fake_prf_method.nx_crypto_cleanup = fake_cleanup;
call_count = 0; iteration = 1;
status = _nx_secure_tls_generate_keys(&session);
EXPECT_EQ(NX_CRYPTO_NOT_SUCCESSFUL, status);
call_count = 0; iteration++;
status = _nx_secure_tls_generate_keys(&session);
EXPECT_EQ(NX_CRYPTO_NOT_SUCCESSFUL, status);
call_count = 0; iteration++;
status = _nx_secure_tls_generate_keys(&session);
EXPECT_EQ(NX_CRYPTO_NOT_SUCCESSFUL, status);
call_count = 0; iteration++;
status = _nx_secure_tls_generate_keys(&session);
EXPECT_EQ(NX_CRYPTO_NOT_SUCCESSFUL, status);
call_count = 0; iteration++;
status = _nx_secure_tls_generate_keys(&session);
EXPECT_EQ(NX_CRYPTO_NOT_SUCCESSFUL, status);
call_count = 0; iteration++;
status = _nx_secure_tls_generate_keys(&session);
EXPECT_EQ(NX_CRYPTO_NOT_SUCCESSFUL, status);
}
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