/**
* \brief Test CTR mode encryption and decryption.
*
* \param test Current test case.
*/
static void run_ctr_mode_test(const struct test_case *test)
{
state = false;
/* Configure the AES. */
g_aes_inst.aes_cfg->encrypt_mode = AES_ENCRYPTION;
g_aes_inst.aes_cfg->key_size = AES_KEY_SIZE_128;
g_aes_inst.aes_cfg->dma_mode = AES_MANUAL_MODE;
g_aes_inst.aes_cfg->opmode = AES_CTR_MODE;
g_aes_inst.aes_cfg->cfb_size = AES_CFB_SIZE_128;
g_aes_inst.aes_cfg->countermeasure_mask = AES_COUNTERMEASURE_TYPE_ALL;
aes_set_config(&g_aes_inst);
/* Beginning of a new message. */
aes_set_new_message(&g_aes_inst);
/* Set the cryptographic key. */
aes_write_key(&g_aes_inst, key128);
/* Set the initialization vector. */
aes_write_initvector(&g_aes_inst, init_vector_ctr);
/* Write the data to be ciphered to the input data registers. */
aes_write_input_data(&g_aes_inst, ref_plain_text[0]);
aes_write_input_data(&g_aes_inst, ref_plain_text[1]);
aes_write_input_data(&g_aes_inst, ref_plain_text[2]);
aes_write_input_data(&g_aes_inst, ref_plain_text[3]);
/* Wait for the end of the encryption process. */
delay_ms(30);
/* check the result. */
if ((ref_cipher_text_ctr[0] != output_data[0]) ||
(ref_cipher_text_ctr[1] != output_data[1]) ||
(ref_cipher_text_ctr[2] != output_data[2]) ||
(ref_cipher_text_ctr[3] != output_data[3])) {
flag = false;
} else {
flag = true;
}
test_assert_true(test, flag == true, "CTR mode encryption not work!");
state = false;
/* Configure the AES. */
g_aes_inst.aes_cfg->encrypt_mode = AES_DECRYPTION;
g_aes_inst.aes_cfg->key_size = AES_KEY_SIZE_128;
g_aes_inst.aes_cfg->dma_mode = AES_MANUAL_MODE;
g_aes_inst.aes_cfg->opmode = AES_CTR_MODE;
g_aes_inst.aes_cfg->cfb_size = AES_CFB_SIZE_128;
g_aes_inst.aes_cfg->countermeasure_mask = AES_COUNTERMEASURE_TYPE_ALL;
aes_set_config(&g_aes_inst);
/* Beginning of a new message. */
aes_set_new_message(&g_aes_inst);
/* Set the cryptographic key. */
aes_write_key(&g_aes_inst, key128);
/* Set the initialization vector. */
aes_write_initvector(&g_aes_inst, init_vector_ctr);
/* Write the data to be deciphered to the input data registers. */
aes_write_input_data(&g_aes_inst, ref_cipher_text_ctr[0]);
aes_write_input_data(&g_aes_inst, ref_cipher_text_ctr[1]);
aes_write_input_data(&g_aes_inst, ref_cipher_text_ctr[2]);
aes_write_input_data(&g_aes_inst, ref_cipher_text_ctr[3]);
/* Wait for the end of the decryption process. */
delay_ms(30);
/* check the result. */
if ((ref_plain_text[0] != output_data[0]) ||
(ref_plain_text[1] != output_data[1]) ||
(ref_plain_text[2] != output_data[2]) ||
(ref_plain_text[3] != output_data[3])) {
flag = false;
} else {
flag = true;
}
test_assert_true(test, flag == true, "CTR mode decryption not work!");
}
/**
* \brief CTR mode encryption and decryption test.
*/
static void ctr_mode_test(void)
{
printf("\r\n-----------------------------------\r\n");
printf("- 128bit cryptographic key\r\n");
printf("- CTR cipher mode\r\n");
printf("- all counter measures\r\n");
printf("- input of 4 32bit words\r\n");
printf("-----------------------------------\r\n");
state = false;
/* Configure the AES. */
g_aes_inst.aes_cfg->encrypt_mode = AES_ENCRYPTION;
g_aes_inst.aes_cfg->key_size = AES_KEY_SIZE_128;
g_aes_inst.aes_cfg->dma_mode = AES_MANUAL_MODE;
g_aes_inst.aes_cfg->opmode = AES_CTR_MODE;
g_aes_inst.aes_cfg->cfb_size = AES_CFB_SIZE_128;
g_aes_inst.aes_cfg->countermeasure_mask = AES_COUNTERMEASURE_TYPE_ALL;
aes_set_config(&g_aes_inst);
/* Beginning of a new message. */
aes_set_new_message(&g_aes_inst);
/* Set the cryptographic key. */
aes_write_key(&g_aes_inst, key128);
/* Set the initialization vector. */
aes_write_initvector(&g_aes_inst, init_vector_ctr);
/* Write the data to be ciphered to the input data registers. */
aes_write_input_data(&g_aes_inst, ref_plain_text[0]);
aes_write_input_data(&g_aes_inst, ref_plain_text[1]);
aes_write_input_data(&g_aes_inst, ref_plain_text[2]);
aes_write_input_data(&g_aes_inst, ref_plain_text[3]);
/* Wait for the end of the encryption process. */
while (false == state) {
}
/* check the result. */
if ((ref_cipher_text_ctr[0] != output_data[0]) ||
(ref_cipher_text_ctr[1] != output_data[1]) ||
(ref_cipher_text_ctr[2] != output_data[2]) ||
(ref_cipher_text_ctr[3] != output_data[3])) {
printf("\r\nKO!!!\r\n");
} else {
printf("\r\nOK!!!\r\n");
}
printf("\r\n-----------------------------------\r\n");
printf("- 128bit cryptographic key\r\n");
printf("- CTR decipher mode\r\n");
printf("- all counter measures\r\n");
printf("- input of 4 32bit words\r\n");
printf("-----------------------------------\r\n");
state = false;
/* Configure the AES. */
g_aes_inst.aes_cfg->encrypt_mode = AES_DECRYPTION;
g_aes_inst.aes_cfg->key_size = AES_KEY_SIZE_128;
g_aes_inst.aes_cfg->dma_mode = AES_MANUAL_MODE;
g_aes_inst.aes_cfg->opmode = AES_CTR_MODE;
g_aes_inst.aes_cfg->cfb_size = AES_CFB_SIZE_128;
g_aes_inst.aes_cfg->countermeasure_mask = AES_COUNTERMEASURE_TYPE_ALL;
aes_set_config(&g_aes_inst);
/* Beginning of a new message. */
aes_set_new_message(&g_aes_inst);
/* Set the cryptographic key. */
aes_write_key(&g_aes_inst, key128);
/* Set the initialization vector. */
aes_write_initvector(&g_aes_inst, init_vector_ctr);
/* Write the data to be deciphered to the input data registers. */
aes_write_input_data(&g_aes_inst, ref_cipher_text_ctr[0]);
aes_write_input_data(&g_aes_inst, ref_cipher_text_ctr[1]);
aes_write_input_data(&g_aes_inst, ref_cipher_text_ctr[2]);
aes_write_input_data(&g_aes_inst, ref_cipher_text_ctr[3]);
/* Wait for the end of the decryption process. */
while (false == state) {
}
/* check the result. */
if ((ref_plain_text[0] != output_data[0]) ||
(ref_plain_text[1] != output_data[1]) ||
(ref_plain_text[2] != output_data[2]) ||
(ref_plain_text[3] != output_data[3])) {
printf("\r\nKO!!!\r\n");
} else {
printf("\r\nOK!!!\r\n");
}
}
/**
* \brief Test CTR mode encryption and decryption.
*
* \param test Current test case.
*/
static void run_ctr_mode_test(const struct test_case *test)
{
/* Configure the AES. */
g_aes_cfg.encrypt_mode = AES_ENCRYPTION;
g_aes_cfg.key_size = AES_KEY_SIZE_128;
g_aes_cfg.start_mode = AES_AUTO_MODE;
g_aes_cfg.opmode = AES_CTR_MODE;
g_aes_cfg.cfb_size = AES_CFB_SIZE_128;
g_aes_cfg.lod = false;
aes_set_config(AES, &g_aes_cfg);
/* Set the cryptographic key. */
aes_write_key(AES, key128);
/* Set the initialization vector. */
aes_write_initvector(AES, init_vector_ctr);
/* Write the data to be ciphered to the input data registers. */
aes_write_input_data(AES, ref_plain_text);
/* Wait for the end of the encryption process. */
delay_ms(30);
/* check the result. */
if ((ref_cipher_text_ctr[0] != output_data[0]) ||
(ref_cipher_text_ctr[1] != output_data[1]) ||
(ref_cipher_text_ctr[2] != output_data[2]) ||
(ref_cipher_text_ctr[3] != output_data[3])) {
flag = false;
} else {
flag = true;
}
test_assert_true(test, flag == true, "CTR mode encryption not work!");
/* Configure the AES. */
g_aes_cfg.encrypt_mode = AES_DECRYPTION;
g_aes_cfg.key_size = AES_KEY_SIZE_128;
g_aes_cfg.start_mode = AES_AUTO_MODE;
g_aes_cfg.opmode = AES_CTR_MODE;
g_aes_cfg.cfb_size = AES_CFB_SIZE_128;
g_aes_cfg.lod = false;
aes_set_config(AES, &g_aes_cfg);
/* Set the cryptographic key. */
aes_write_key(AES, key128);
/* Set the initialization vector. */
aes_write_initvector(AES, init_vector_ctr);
/* Write the data to be deciphered to the input data registers. */
aes_write_input_data(AES, ref_cipher_text_ctr);
/* Wait for the end of the decryption process. */
delay_ms(30);
/* check the result. */
if ((ref_plain_text[0] != output_data[0]) ||
(ref_plain_text[1] != output_data[1]) ||
(ref_plain_text[2] != output_data[2]) ||
(ref_plain_text[3] != output_data[3])) {
flag = false;
} else {
flag = true;
}
test_assert_true(test, flag == true, "CTR mode decryption not work!");
}
/**
* \brief CTR mode encryption and decryption test.
*/
static void ctr_mode_test(void)
{
printf("\r\n-----------------------------------\r\n");
printf("- 128bit cryptographic key\r\n");
printf("- CTR cipher mode\r\n");
printf("- Auto start mode\r\n");
printf("- input of 4 32bit words\r\n");
printf("-----------------------------------\r\n");
state = false;
/* Configure the AES. */
g_aes_cfg.encrypt_mode = AES_ENCRYPTION;
g_aes_cfg.key_size = AES_KEY_SIZE_128;
g_aes_cfg.start_mode = AES_AUTO_START;
g_aes_cfg.opmode = AES_CTR_MODE;
g_aes_cfg.cfb_size = AES_CFB_SIZE_128;
g_aes_cfg.lod = false;
aes_set_config(AES, &g_aes_cfg);
/* Set the cryptographic key. */
aes_write_key(AES, key128);
/* Set the initialization vector. */
aes_write_initvector(AES, init_vector_ctr);
/* Write the data to be ciphered to the input data registers. */
aes_write_input_data(AES, ref_plain_text);
/* Wait for the end of the encryption process. */
while (false == state) {
}
/* check the result. */
if ((ref_cipher_text_ctr[0] != output_data[0]) ||
(ref_cipher_text_ctr[1] != output_data[1]) ||
(ref_cipher_text_ctr[2] != output_data[2]) ||
(ref_cipher_text_ctr[3] != output_data[3])) {
printf("\r\nKO!!!\r\n");
} else {
printf("\r\nOK!!!\r\n");
}
printf("\r\n-----------------------------------\r\n");
printf("- 128bit cryptographic key\r\n");
printf("- CTR decipher mode\r\n");
printf("- Auto start mode\r\n");
printf("- input of 4 32bit words\r\n");
printf("-----------------------------------\r\n");
state = false;
/* Configure the AES. */
g_aes_cfg.encrypt_mode = AES_DECRYPTION;
g_aes_cfg.key_size = AES_KEY_SIZE_128;
g_aes_cfg.start_mode = AES_AUTO_START;
g_aes_cfg.opmode = AES_CTR_MODE;
g_aes_cfg.cfb_size = AES_CFB_SIZE_128;
g_aes_cfg.lod = false;
aes_set_config(AES, &g_aes_cfg);
/* Set the cryptographic key. */
aes_write_key(AES, key128);
/* Set the initialization vector. */
aes_write_initvector(AES, init_vector_ctr);
/* Write the data to be deciphered to the input data registers. */
aes_write_input_data(AES, ref_cipher_text_ctr);
/* Wait for the end of the decryption process. */
while (false == state) {
}
/* check the result. */
if ((ref_plain_text[0] != output_data[0]) ||
(ref_plain_text[1] != output_data[1]) ||
(ref_plain_text[2] != output_data[2]) ||
(ref_plain_text[3] != output_data[3])) {
printf("\r\nKO!!!\r\n");
} else {
printf("\r\nOK!!!\r\n");
}
}
/**
* \brief GCM mode decryption test.
*/
static void gcm_mode_decryption_test(void)
{
printf("\r\n-----------------------------------\r\n");
printf("- 256bit cryptographic key\r\n");
printf("- GCM Decryption\r\n");
printf("- Auto start mode\r\n");
printf("- input of 160-bit effective words\r\n");
printf("-----------------------------------\r\n");
/* Configure the AES. */
g_aes_cfg.encrypt_mode = AES_DECRYPTION;
g_aes_cfg.key_size = AES_KEY_SIZE_256;
g_aes_cfg.start_mode = AES_AUTO_START;
g_aes_cfg.opmode = AES_GCM_MODE;
g_aes_cfg.cfb_size = AES_CFB_SIZE_128;
g_aes_cfg.lod = false;
g_aes_cfg.gtag_en = false;
aes_set_config(AES, &g_aes_cfg);
/* AES-GCM Input Configuration */
gcm_input_data.key = aes_key;
gcm_input_data.key_len = AES_KEY_SIZE;
gcm_input_data.iv = aes_iv;
gcm_input_data.iv_len = AES_IV_SIZE;
gcm_input_data.input = aes_cipher_text;
gcm_input_data.text_len = AES_PDATA_EFFECTIVE_SIZE;
gcm_input_data.aad = aes_aad;
gcm_input_data.aad_len = AES_AAD_EFFECTIVE_SIZE;
gcm_input_data.output = output_data;
gcm_input_data.tag = tag_data;
/* Write the key to generate GCMH Subkey */
aes_write_key(AES, gcm_input_data.key);
/* Wait for the GCMH to generate */
while (!(aes_read_interrupt_status(AES) & AES_ISR_DATRDY)) {
}
/* Generate J0 using IV(96 Bits) */
uint32_t i;
/* J0 data array */
uint32_t j0[4];
for (i = 0; i < 3; i++) {
j0[i] = gcm_input_data.iv[i];
}
/* Write the j0 + 1 in IV register */
j0[3] = 0x02000000;
aes_write_initvector(AES, (uint32_t *)j0);
/* set AADLEN */
aes_write_authen_datalength(AES, gcm_input_data.aad_len);
/* Set CLEN */
aes_write_pctext_length(AES, gcm_input_data.text_len);
/* Write AAD Data for TAG generation */
uint32_t offset = 0;
for (i = 0; i < (AES_AAD_SIZE / 4); i++) {
/* write the input data */
aes_write_input_data(AES, (gcm_input_data.aad + offset));
/* Wait till TAG is ready */
while (!(aes_read_interrupt_status(AES) & AES_ISR_DATRDY)) {
}
/* 16-Byte Boundaries */
offset += 4;
}
/* Reset offset to zero */
offset = 0;
/* Write plain text for cipher text generation */
for (i = 0; i < (AES_PDATA_SIZE / 4); i++) {
/* write the input data */
aes_write_input_data(AES, (gcm_input_data.input + offset));
/* Wait for the operation to complete */
while (!(aes_read_interrupt_status(AES) & AES_ISR_DATRDY)) {
}
aes_read_output_data(AES,
(uint32_t *)(gcm_input_data.output + offset));
offset += 4;
}
if (memcmp(output_data, aes_plain_text,
AES_PDATA_EFFECTIVE_SIZE) != 0) {
printf("\n\rDEC COMPARE FAILED! ");
} else {
printf("\n\rDEC COMPARE SUCCESS! ");
}
}
