Add timing test.

aestest.c

@@ -1,4 +1,7 @@
 #include <stdio.h>
+#include <MiscTool.h>
+#include <Memory.h>
+#include <orca.h>
 
 #include "aes.h"
 
@@ -25,10 +28,12 @@ void aes128_test(void) {
     
     aes_expandkey128(&aes_state);
 
+#ifdef PRINT_ROUND_KEYS
     for (i = 1; i <= 10; i++) {
         printf("Round key %2i: ", i);
         print_hexbytes("", aes_state.key + i*16, 16);
     }
+#endif
     
     aes_encrypt(&aes_state);
     
@@ -49,10 +54,12 @@ void aes192_test(void) {
     
     aes_expandkey192(&aes_state);
     
+#ifdef PRINT_ROUND_KEYS
     for (i = 1; i <= 12; i++) {
         printf("Round key %2i: ", i);
         print_hexbytes("", aes_state.key + i*16, 16);
     }
+#endif
     
     aes_encrypt(&aes_state);
     
@@ -73,17 +80,49 @@ void aes256_test(void) {
     
     aes_expandkey256(&aes_state);
     
+#ifdef PRINT_ROUND_KEYS
     for (i = 1; i <= 14; i++) {
         printf("Round key %2i: ", i);
         print_hexbytes("", aes_state.key + i*16, 16);
     }
+#endif
     
     aes_encrypt(&aes_state);
     
     print_hexbytes("Output:       ", aes_state.data, 16);
 }
 
+unsigned long aes128_time_test(unsigned int iters) {
+    unsigned int i;
+    unsigned long tick_count;
+    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},
+        {0},
+        {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f}
+    };
+    
+    aes_state_hndl = (struct aes_state **)NewHandle(sizeof(struct aes_state),
+    		userid(), attrFixed|attrPage|attrBank|attrNoCross, 0x000000);
+    if (toolerror())
+	return 0;
+    aes_state = *aes_state_hndl;
+    *aes_state = aes_state_init;
+
+    aes_expandkey128(aes_state);
+    
+    tick_count = GetTick();
+    for (i = 0; i < iters; i++) {
+        aes_encrypt(aes_state);
+    }
+    return GetTick() - tick_count;
+}
+
 int main(void) {
+    unsigned long tick_count;
+    unsigned int test_iters = 1000;
+    long double bytes_per_sec;
+
     printf("AES-128 test:\n");
     aes128_test();
     
@@ -92,4 +131,10 @@ 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);
 }