mirror of
https://github.com/espressif/esp-idf.git
synced 2025-11-03 14:01:53 +00:00
71 lines
2.2 KiB
C
71 lines
2.2 KiB
C
/* mbedTLS AES performance test
|
|
*/
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <stdbool.h>
|
|
#include <esp_system.h>
|
|
#include "mbedtls/aes.h"
|
|
#include "mbedtls/gcm.h"
|
|
#include "unity.h"
|
|
#include "sdkconfig.h"
|
|
#include "esp_heap_caps.h"
|
|
#include "test_utils.h"
|
|
#include "ccomp_timer.h"
|
|
|
|
TEST_CASE("mbedtls AES performance", "[aes][timeout=60]")
|
|
{
|
|
const unsigned CALLS = 256;
|
|
const unsigned CALL_SZ = 32 * 1024;
|
|
mbedtls_aes_context ctx;
|
|
float elapsed_usec;
|
|
uint8_t iv[16];
|
|
uint8_t key[16];
|
|
|
|
memset(iv, 0xEE, 16);
|
|
memset(key, 0x44, 16);
|
|
|
|
// allocate internal memory
|
|
uint8_t *buf = heap_caps_malloc(CALL_SZ, MALLOC_CAP_DMA | MALLOC_CAP_8BIT | MALLOC_CAP_INTERNAL);
|
|
TEST_ASSERT_NOT_NULL(buf);
|
|
mbedtls_aes_init(&ctx);
|
|
mbedtls_aes_setkey_enc(&ctx, key, 128);
|
|
|
|
ccomp_timer_start();
|
|
for (int c = 0; c < CALLS; c++) {
|
|
memset(buf, 0xAA, CALL_SZ);
|
|
mbedtls_aes_crypt_cbc(&ctx, MBEDTLS_AES_ENCRYPT, CALL_SZ, iv, buf, buf);
|
|
}
|
|
elapsed_usec = ccomp_timer_stop();
|
|
|
|
/* Sanity check: make sure the last ciphertext block matches
|
|
what we expect to see.
|
|
|
|
Last block produced via this Python:
|
|
import os, binascii
|
|
from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
|
|
from cryptography.hazmat.backends import default_backend
|
|
key = b'\x44' * 16
|
|
iv = b'\xee' * 16
|
|
cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=default_backend())
|
|
encryptor = cipher.encryptor()
|
|
ct = encryptor.update(b'\xaa' * 256 * 32 * 1024) + encryptor.finalize()
|
|
print(binascii.hexlify(ct[-16:]))
|
|
*/
|
|
const uint8_t expected_last_block[] = {
|
|
0x50, 0x81, 0xe0, 0xe1, 0x15, 0x2f, 0x14, 0xe9,
|
|
0x97, 0xa0, 0xc6, 0xe6, 0x36, 0xf3, 0x5c, 0x25,
|
|
};
|
|
TEST_ASSERT_EQUAL_HEX8_ARRAY(expected_last_block, buf + CALL_SZ - 16, 16);
|
|
|
|
mbedtls_aes_free(&ctx);
|
|
free(buf);
|
|
|
|
// bytes/usec = MB/sec
|
|
float mb_sec = (CALL_SZ * CALLS) / elapsed_usec;
|
|
printf("Encryption rate %.3fMB/sec\n", mb_sec);
|
|
#ifdef CONFIG_MBEDTLS_HARDWARE_AES
|
|
// Don't put a hard limit on software AES performance
|
|
TEST_PERFORMANCE_CCOMP_GREATER_THAN(AES_CBC_THROUGHPUT_MBSEC, "%.3fMB/sec", mb_sec);
|
|
#endif
|
|
}
|