/* * aestime - time how long computations take on AES algorithm *	   for cipher init, encrypt 1Mb, decrypt 1Mb, set 1000 key pairs * *         Customise the ALG name and include file below and link with *         any alg satisfying the AES C-API. * * written by Lawrie Brown <lawre.Brown@adfa.oz.au> / May 1998 */#define ALG "LOKI97"		/*** Customise - algorithm name ***/#include "loki97.h"		/*** Customise - algorithm header file ***/#include <time.h>#define MILLICLKS	(CLOCKS_PER_SEC/1000.0)main(){    printf("Alg\tKey/Blk\tInit\tEncrypt 1Mb\tDecrypt 1Mb\tKey Init (1000 pairs)\n");    printf("\t\tTime ms\tTime ms Kbps\tTime ms Kbps\tTime ms Keys/ms\n");    timealg(128);    timealg(192);    timealg(256);}/* * timealg(keysize) - time AES algorithm using specified keysize */timealg(int keysize){    char *key = "000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F";    BYTE plain[] =	{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, /* 128 bytes */			 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,			 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,			 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,			 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,			 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,			 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,			 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};    BYTE		temp[128];				/* 128 bytes */    int			kbnum = 1024 / sizeof(plain);	/* num plain in 1Kb */    keyInstance		enc_key, dec_key;	/* AES keyInstances */    cipherInstance	aes_cipher;		/* AES cipherInstance */    int			i, j;			/* misc counters */    clock_t		start,finish;		/* time values */    unsigned long	duration;    /* print alg name and block/key size */    printf("%s\t%d/%d\t", ALG, keysize, BLOCK_SIZE*8);    /* Init AES cipher in ECB mode */    start = clock();    cipherInit(&aes_cipher, MODE_ECB, NULL);    finish = clock();    duration = (finish-start)/MILLICLKS;    printf("%ld\t", duration);    /* Time encrypt */    makeKey(&enc_key, DIR_ENCRYPT, keysize, key);    start = clock();    for(i=0;i<kbnum;i++)        for(j=0;j<1024;j++)	    blockEncrypt(&aes_cipher, &enc_key, plain, sizeof(plain)*8, temp);    finish = clock();    duration = (finish-start)/MILLICLKS;    printf("%ld\t", duration);    printf("%4.1lf\t", (double)(8*1024*1024/duration));    /* Time decrypt */    makeKey(&dec_key, DIR_DECRYPT, keysize, key);    start = clock();    for(i=0;i<kbnum;i++)        for(j=0;j<1024;j++)	    blockDecrypt(&aes_cipher, &dec_key, plain, sizeof(plain)*8, temp);    finish = clock();    duration = (finish-start)/MILLICLKS;    printf("%ld\t", duration);    printf("%4.1lf\t", (double)(8*1024*1024/duration));    /* Time Key Inits */    start = clock();    for(i=0;i<1000;i++)	makeKey(&enc_key, DIR_ENCRYPT, keysize, key);	makeKey(&dec_key, DIR_DECRYPT, keysize, key);    finish = clock();    duration = (finish-start)/MILLICLKS;    printf("%ld\t", duration/2);    printf("%4.1lf\n", (double)(2000/duration));}