/**
* \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 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]
}
