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65816-crypto
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Time decryption as well as encryption.

This commit is contained in:
Stephen Heumann 2017-06-27 19:35:38 -05:00
parent a522ab6d88
commit 14fe68de79
1 changed files with 20 additions and 10 deletions
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30
aestest.c
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@ -107,6 +107,8 @@ void aes256_test(void) {
unsigned long aes128_time_test(unsigned int iters) {
unsigned int i;
unsigned long tick_count;
long double bytes_per_sec;
struct aes_state *aes_state, **aes_state_hndl;
static struct aes_state aes_state_init = {
{0x00,0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc,0xdd,0xee,0xff},
@ -127,14 +129,26 @@ unsigned long aes128_time_test(unsigned int iters) {
for (i = 0; i < iters; i++) {
aes_encrypt(aes_state);
}
return GetTick() - tick_count;
tick_count = GetTick() - tick_count;
bytes_per_sec = (long double)iters * 16 * 60 / tick_count;
printf("Encryption: %u iterations takes %lu ticks (%lf bytes/sec)\n",
iters, tick_count, bytes_per_sec);
tick_count = GetTick();
for (i = 0; i < iters; i++) {
aes128_decrypt(aes_state);
}
tick_count = GetTick() - tick_count;
bytes_per_sec = (long double)iters * 16 * 60 / tick_count;
printf("Decryption: %u iterations takes %lu ticks (%lf bytes/sec)\n",
iters, tick_count, bytes_per_sec);
print_hexbytes("Decrypted: ", aes_state->data, 16);
}
int main(void) {
unsigned long tick_count;
unsigned int test_iters = 1000;
long double bytes_per_sec;
printf("AES-128 test:\n");
aes128_test();
@ -144,9 +158,5 @@ int main(void) {
printf("AES-256 test:\n");
aes256_test();
tick_count = aes128_time_test(test_iters);
printf("%u iterations takes %lu ticks", test_iters, tick_count);
fflush(stdout);
bytes_per_sec = (long double)test_iters * 16 * 60 / tick_count;
printf(" (%lf bytes/sec)\n", bytes_per_sec);
aes128_time_test(1000);
}