/**
* \brief ECB mode encryption test with DMA.
*/
static void ecb_mode_test_dma(void)
{
printf("\r\n-----------------------------------\r\n");
printf("- 128bit cryptographic key\r\n");
printf("- ECB cipher mode\r\n");
printf("- DMA mode\r\n");
printf("- 4 32bit words with DMA\r\n");
printf("-----------------------------------\r\n");
//! [encryption_mode]
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_ECB_MODE;
g_aes_cfg.cfb_size = AES_CFB_SIZE_128;
g_aes_cfg.lod = false;
aes_set_config(&aes_instance,AES, &g_aes_cfg);
/* Set the cryptographic key. */
aes_write_key(&aes_instance, key128);
/* The initialization vector is not used by the ECB cipher mode. */
dma_start_transfer_job(&example_resource_tx);
aes_set_new_message(&aes_instance);
aes_clear_new_message(&aes_instance);
/* Wait DMA transfer */
while (false == state) {
}
/* Wait for the end of the encryption process. */
while (!(aes_get_status(&aes_instance) & AES_ENCRYPTION_COMPLETE)) {
}
state = false;
dma_start_transfer_job(&example_resource_rx);
/* Wait DMA transfer */
while (false == state) {
}
if ((ref_cipher_text_ecb[0] != output_data[0]) ||
(ref_cipher_text_ecb[1] != output_data[1]) ||
(ref_cipher_text_ecb[2] != output_data[2]) ||
(ref_cipher_text_ecb[3] != output_data[3])) {
printf("\r\nKO!!!\r\n");
} else {
printf("\r\nOK!!!\r\n");
}
//! [encryption_mode]
}
/**
* \brief Test ECB mode encryption with DMA.
*
* \param test Current test case.
*/
static void run_ecb_mode_test_dma(const struct test_case *test)
{
/* Configure DMAC. */
configure_dma_aes_wr();
configure_dma_aes_rd();
/* 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_ECB_MODE;
g_aes_cfg.cfb_size = AES_CFB_SIZE_128;
g_aes_cfg.lod = false;
aes_set_config(&aes_instance,AES, &g_aes_cfg);
/* Set the cryptographic key. */
aes_write_key(&aes_instance, key128);
dma_start_transfer_job(&example_resource_tx);
aes_set_new_message(&aes_instance);
aes_clear_new_message(&aes_instance);
/* Wait for the end of the encryption process. */
delay_ms(30);
dma_start_transfer_job(&example_resource_rx);
delay_ms(30);
if ((ref_cipher_text_ecb[0] != output_data[0]) ||
(ref_cipher_text_ecb[1] != output_data[1]) ||
(ref_cipher_text_ecb[2] != output_data[2]) ||
(ref_cipher_text_ecb[3] != output_data[3])) {
flag = false;
} else {
flag = true;
}
test_assert_true(test, flag == true, "ECB mode encryption with DMA not work!");
}
/**
* \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 Test ECB mode encryption and decryption with PDCA.
*
* \param test Current test case.
*/
static void run_ecb_mode_test_pdca(const struct test_case *test)
{
/* Change the AES interrupt callback function. */
aes_set_callback(&g_aes_inst, AES_INTERRUPT_INPUT_BUFFER_READY,
aes_callback_pdca, 1);
/* Enable PDCA module clock */
pdca_enable(PDCA);
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_DMA_MODE;
g_aes_inst.aes_cfg->opmode = AES_ECB_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);
/* The initialization vector is not used by the ECB cipher mode. */
/* Write the data to be ciphered to the input data registers. */
/* Init PDCA channel with the pdca_options.*/
PDCA_TX_OPTIONS.addr = (void *)ref_plain_text; /* memory address */
PDCA_TX_OPTIONS.pid = AESA_PDCA_ID_TX; /* select peripheral - AESA TX.*/
PDCA_TX_OPTIONS.size = AES_EXAMPLE_REFBUF_SIZE; /* transfer counter */
PDCA_TX_OPTIONS.r_addr = (void *)0; /* next memory address */
PDCA_TX_OPTIONS.r_size = 0; /* next transfer counter */
PDCA_TX_OPTIONS.transfer_size = PDCA_MR_SIZE_WORD;
pdca_channel_set_config(PDCA_TX_CHANNEL, &PDCA_TX_OPTIONS);
PDCA_RX_OPTIONS.addr = (void *)output_data; /* memory address */
PDCA_RX_OPTIONS.pid = AESA_PDCA_ID_RX; /* select peripheral - AESA RX.*/
PDCA_RX_OPTIONS.size = AES_EXAMPLE_REFBUF_SIZE; /* transfer counter */
PDCA_RX_OPTIONS.r_addr = (void *)0; /* next memory address */
PDCA_RX_OPTIONS.r_size = 0; /* next transfer counter */
PDCA_RX_OPTIONS.transfer_size = PDCA_MR_SIZE_WORD;
pdca_channel_set_config(PDCA_RX_CHANNEL, &PDCA_RX_OPTIONS);
/* Enable PDCA channel, start transfer data. */
pdca_channel_enable(PDCA_TX_CHANNEL);
/* Wait for the end of the encryption process. */
delay_ms(30);
/* Disable PDCA channel. */
pdca_channel_disable(PDCA_RX_CHANNEL);
pdca_channel_disable(PDCA_TX_CHANNEL);
if ((ref_cipher_text_ecb[0] != output_data[0]) ||
(ref_cipher_text_ecb[1] != output_data[1]) ||
(ref_cipher_text_ecb[2] != output_data[2]) ||
(ref_cipher_text_ecb[3] != output_data[3])) {
flag = false;
} else {
flag = true;
}
test_assert_true(test, flag == true, "ECB 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_DMA_MODE;
g_aes_inst.aes_cfg->opmode = AES_ECB_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);
/* The initialization vector is not used by the ECB cipher mode. */
/* Write the data to be deciphered to the input data registers. */
/* Init PDCA channel with the pdca_options.*/
PDCA_TX_OPTIONS.addr = (void *)ref_cipher_text_ecb; /* memory address */
PDCA_TX_OPTIONS.pid = AESA_PDCA_ID_TX; /* select peripheral - AESA TX.*/
PDCA_TX_OPTIONS.size = AES_EXAMPLE_REFBUF_SIZE; /* transfer counter */
PDCA_TX_OPTIONS.r_addr = (void *)0; /* next memory address */
PDCA_TX_OPTIONS.r_size = 0; /* next transfer counter */
PDCA_TX_OPTIONS.transfer_size = PDCA_MR_SIZE_WORD;
pdca_channel_set_config(PDCA_TX_CHANNEL, &PDCA_TX_OPTIONS);
PDCA_RX_OPTIONS.addr = (void *)output_data; /* memory address */
PDCA_RX_OPTIONS.pid = AESA_PDCA_ID_RX; /* select peripheral - AESA RX.*/
PDCA_RX_OPTIONS.size = AES_EXAMPLE_REFBUF_SIZE; /* transfer counter */
PDCA_RX_OPTIONS.r_addr = (void *)0; /* next memory address */
PDCA_RX_OPTIONS.r_size = 0; /* next transfer counter */
PDCA_RX_OPTIONS.transfer_size = PDCA_MR_SIZE_WORD;
pdca_channel_set_config(PDCA_RX_CHANNEL, &PDCA_RX_OPTIONS);
/* Enable PDCA channel, start transfer data. */
pdca_channel_enable(PDCA_TX_CHANNEL);
/* Wait for the end of the decryption process. */
delay_ms(30);
/* Disable PDCA channel. */
pdca_channel_disable(PDCA_RX_CHANNEL);
pdca_channel_disable(PDCA_TX_CHANNEL);
/* 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, "ECB mode decryption not work!");
/* Disable PDCA module clock */
pdca_disable(PDCA);
/* Change back the AES interrupt callback function. */
aes_set_callback(&g_aes_inst, AES_INTERRUPT_INPUT_BUFFER_READY,
aes_callback, 1);
}
/**
* \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("- 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_instance,AES, &g_aes_cfg);
/* Set the cryptographic key. */
aes_write_key(&aes_instance, key128);
/* Set the initialization vector. */
aes_write_init_vector(&aes_instance, init_vector_ctr);
aes_set_new_message(&aes_instance);
/* Write the data to be ciphered to the input data registers. */
aes_write_input_data(&aes_instance, ref_plain_text);
aes_clear_new_message(&aes_instance);
/* 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("- 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_MANUAL_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_instance,AES, &g_aes_cfg);
/* Set the cryptographic key. */
aes_write_key(&aes_instance, key128);
/* Set the initialization vector. */
aes_write_init_vector(&aes_instance, init_vector_ctr);
/* Write the data to be deciphered to the input data registers. */
aes_write_input_data(&aes_instance, ref_cipher_text_ctr);
aes_set_new_message(&aes_instance);
aes_start(&aes_instance);
aes_clear_new_message(&aes_instance);
/* 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_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_instance,AES, &g_aes_cfg);
/* Set the cryptographic key. */
aes_write_key(&aes_instance, key128);
/* Set the initialization vector. */
aes_write_init_vector(&aes_instance, init_vector_ctr);
aes_set_new_message(&aes_instance);
/* Write the data to be ciphered to the input data registers. */
aes_write_input_data(&aes_instance, ref_plain_text);
aes_clear_new_message(&aes_instance);
/* Wait for the end of the encryption process. */
delay_ms(30);
aes_read_output_data(&aes_instance,output_data);
/* 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_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_instance,AES, &g_aes_cfg);
/* Set the cryptographic key. */
aes_write_key(&aes_instance, key128);
/* Set the initialization vector. */
aes_write_init_vector(&aes_instance, init_vector_ctr);
aes_set_new_message(&aes_instance);
/* Write the data to be deciphered to the input data registers. */
aes_write_input_data(&aes_instance, ref_cipher_text_ctr);
aes_clear_new_message(&aes_instance);
/* Wait for the end of the decryption process. */
delay_ms(30);
aes_read_output_data(&aes_instance,output_data);
/* 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 ECB mode encryption and decryption test.
*/
static void ecb_mode_test(void)
{
printf("\r\n-----------------------------------\r\n");
printf("- 128bit cryptographic key\r\n");
printf("- ECB cipher mode\r\n");
printf("- Auto start mode\r\n");
printf("- 4 32bit words\r\n");
printf("-----------------------------------\r\n");
//! [encryption_mode]
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_ECB_MODE;
g_aes_cfg.cfb_size = AES_CFB_SIZE_128;
g_aes_cfg.lod = false;
aes_set_config(&aes_instance,AES, &g_aes_cfg);
/* Set the cryptographic key. */
aes_write_key(&aes_instance, key128);
/* The initialization vector is not used by the ECB cipher mode. */
aes_set_new_message(&aes_instance);
/* Write the data to be ciphered to the input data registers. */
aes_write_input_data(&aes_instance, ref_plain_text);
aes_clear_new_message(&aes_instance);
/* Wait for the end of the encryption process. */
while (!(aes_get_status(&aes_instance) & AES_ENCRYPTION_COMPLETE)) {
}
aes_read_output_data(&aes_instance,output_data);
if ((ref_cipher_text_ecb[0] != output_data[0]) ||
(ref_cipher_text_ecb[1] != output_data[1]) ||
(ref_cipher_text_ecb[2] != output_data[2]) ||
(ref_cipher_text_ecb[3] != output_data[3])) {
printf("\r\nKO!!!\r\n");
} else {
printf("\r\nOK!!!\r\n");
}
//! [encryption_mode]
printf("\r\n-----------------------------------\r\n");
printf("- 128bit cryptographic key\r\n");
printf("- ECB decipher mode\r\n");
printf("- Auto start mode\r\n");
printf("- 4 32bit words\r\n");
printf("-----------------------------------\r\n");
//! [decryption_mode]
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_ECB_MODE;
g_aes_cfg.cfb_size = AES_CFB_SIZE_128;
g_aes_cfg.lod = false;
aes_set_config(&aes_instance,AES, &g_aes_cfg);
/* Set the cryptographic key. */
aes_write_key(&aes_instance, key128);
/* The initialization vector is not used by the ECB cipher mode. */
/* Write the data to be deciphered to the input data registers. */
aes_write_input_data(&aes_instance, ref_cipher_text_ecb);
/* Wait for the end of the decryption process. */
while (!(aes_get_status(&aes_instance) & AES_ENCRYPTION_COMPLETE)) {
}
aes_read_output_data(&aes_instance,output_data);
/* 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");
}
//! [decryption_mode]
}
