/**
 * rijndael-test-fst.c
 *
 * @version 3.0 (December 2000)
 *
 * Optimised ANSI C code for the Rijndael cipher (now AES)
 *
 * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
 * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
 * @author Paulo Barreto <paulo.barreto@terra.com.br>
 *
 * This code is hereby placed in the public domain.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef INTERMEDIATE_VALUE_KAT
#error "Must #define INTERMEDIATE_VALUE_KAT to generate the Intermediate Value Known Answer Test."
#endif /* INTERMEDIATE_VALUE_KAT */

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#include "rijndael-api-fst.h"

#define SUBMITTER "Joan Daemen"

static void blockPrint(FILE *fp, const BYTE *block, const char *tag) {
	int i;
	fprintf (fp, "%s=", tag);
	for (i = 0; i < 16; i++) {
		fprintf (fp, "%02X", block[i]);
	}
	fprintf (fp, "\n");
	fflush (fp);
} /* blockPrint */

static void rijndaelVKKAT(FILE *fp, int keyLength) {
	int i, j, r;
	BYTE block[4*4];
	BYTE keyMaterial[320];
	BYTE byteVal = (BYTE)'8';
	keyInstance keyInst;
	cipherInstance cipherInst;

#ifdef TRACE_KAT_MCT
	printf("Executing Variable-Key KAT (key %d): ", keyLength);
	fflush(stdout);
#endif /* ?TRACE_KAT_MCT */
	fprintf(fp,
		"\n"
		"==========\n"
		"\n"
		"KEYSIZE=%d\n"
		"\n", keyLength);
	fflush(fp);
	memset(block, 0, 16);
	blockPrint(fp, block, "PT");
	memset(keyMaterial, 0, sizeof (keyMaterial));
	memset(keyMaterial, '0', keyLength/4);
	for (i = 0; i < keyLength; i++) {
		keyMaterial[i/4] = byteVal; /* set only the i-th bit of the i-th test key */
		r = makeKey(&keyInst, DIR_ENCRYPT, keyLength, keyMaterial);
		if (TRUE != r) {
			fprintf(stderr,"makeKey error %d\n",r);
			exit(-1);
		}
		fprintf(fp, "\nI=%d\n", i+1);
		fprintf(fp, "KEY=%s\n", keyMaterial);
		memset(block, 0, 16);
		r = cipherInit(&cipherInst, MODE_ECB, NULL);
		if (TRUE != r) {
			fprintf(stderr,"cipherInit error %d\n",r);
			exit(-1);
		}
		r = blockEncrypt(&cipherInst, &keyInst, block, 128, block);
		if (128 != r) {
			fprintf(stderr,"blockEncrypt error %d\n",r);
			exit(-1);
		}
		blockPrint(fp, block, "CT");
		/* now check decryption: */
		makeKey(&keyInst, DIR_DECRYPT, keyLength, keyMaterial);
		blockDecrypt(&cipherInst, &keyInst, block, 128, block);
		for (j = 0; j < 16; j++) {
			assert(block[j] == 0);
		}
		/* undo changes for the next iteration: */
		keyMaterial[i/4] = (BYTE)'0';
		byteVal =
			(byteVal == '8') ?	'4' :
			(byteVal == '4') ?	'2' :
			(byteVal == '2') ?	'1' :
		/*	(byteVal == '1') */	'8';
	}
	assert(byteVal == (BYTE)'8');
	
#ifdef TRACE_KAT_MCT
	printf(" done.\n");
#endif /* ?TRACE_KAT_MCT */
} /* rijndaelVKKAT */


static void rijndaelVTKAT(FILE *fp, int keyLength) {
	int i;
	BYTE block[4*4];
	BYTE keyMaterial[320];
	keyInstance keyInst;
	cipherInstance cipherInst;

#ifdef TRACE_KAT_MCT
	printf("Executing Variable-Text KAT (key %d): ", keyLength);
	fflush(stdout);
#endif /* ?TRACE_KAT_MCT */
	fprintf(fp,
		"\n"
		"==========\n"
		"\n"
		"KEYSIZE=%d\n"
		"\n", keyLength);
	fflush(fp);
	memset(keyMaterial, 0, sizeof (keyMaterial));
	memset(keyMaterial, '0', keyLength/4);
	makeKey(&keyInst, DIR_ENCRYPT, keyLength, keyMaterial);
	fprintf(fp, "KEY=%s\n", keyMaterial);
	for (i = 0; i < 128; i++) {
		memset(block, 0, 16);
		block[i/8] |= 1 << (7 - i%8); /* set only the i-th bit of the i-th test block */
		fprintf (fp, "\nI=%d\n", i+1);
		blockPrint(fp, block, "PT");
		cipherInit(&cipherInst, MODE_ECB, NULL);
		blockEncrypt(&cipherInst, &keyInst, block, 128, block);
		blockPrint(fp, block, "CT");
	}
#ifdef TRACE_KAT_MCT
	printf(" done.\n");
#endif /* ?TRACE_KAT_MCT */
}


static void rijndaelTKAT(FILE *fp, int keyLength, FILE *in) {
	int i, j;
	unsigned int s;
	BYTE block[4*4], block2[4*4];
	BYTE keyMaterial[320];
	keyInstance keyInst;
	cipherInstance cipherInst;

#ifdef TRACE_KAT_MCT
	printf("Executing Tables KAT (key %d): ", keyLength);
	fflush(stdout);
#endif /* ?TRACE_KAT_MCT */
	fprintf(fp,
		"\n"
		"==========\n"
		"\n"
		"KEYSIZE=%d\n"
		"\n", keyLength);
	fflush(fp);

	memset(keyMaterial, 0, sizeof (keyMaterial));
	
	for (i = 0; i < 64; i++) {
		fprintf(fp, "\nI=%d\n", i+1);
		for(j = 0; j < keyLength/4; j++) {
			fscanf(in, "%c", &keyMaterial[j]);
		}
		makeKey(&keyInst, DIR_ENCRYPT, keyLength, keyMaterial);
		
		fprintf(fp, "KEY=%s\n", keyMaterial);
		
		for (j = 0; j < 16; j++) {
			fscanf(in, "%02x", &s);
			block[j] = s;
		}
		fscanf(in, "%c", (char *)&s);
		fscanf(in, "%c", (char *)&s);
		blockPrint(fp, block, "PT");
		cipherInit(&cipherInst, MODE_ECB, NULL);
		blockEncrypt(&cipherInst, &keyInst, block, 128, block2);
		blockPrint(fp, block2, "CT");
	}
	for (i = 64; i < 128; i++) {
		fprintf(fp, "\nI=%d\n", i+1);
		for(j = 0; j < keyLength/4; j++) {
			fscanf(in, "%c", &keyMaterial[j]);
		}
		makeKey(&keyInst, DIR_DECRYPT, keyLength, keyMaterial);
		
		fprintf(fp, "KEY=%s\n", keyMaterial);
		
		for (j = 0; j < 16; j++) {
			fscanf(in, "%02x", &s);
			block[j] = s;
		}
		fscanf(in, "%c", (char *)&s);
		fscanf(in, "%c", (char *)&s);
		cipherInit(&cipherInst, MODE_ECB, NULL);
		blockDecrypt(&cipherInst, &keyInst, block, 128, block2);
		blockPrint(fp, block2, "PT");
		blockPrint(fp, block, "CT");
	}

#ifdef TRACE_KAT_MCT
	printf(" done.\n");
#endif /* ?TRACE_KAT_MCT */
}

#ifdef INTERMEDIATE_VALUE_KAT
static void rijndaelIVKAT (FILE *fp, int keyLength) {
	int i;
	BYTE pt[4*4], ct[4*4];
	BYTE keyMaterial[320];
	keyInstance keyInst;
	cipherInstance cipherInst;
	char format[10];
#ifdef TRACE_KAT_MCT
	printf ("Executing Intermediate value KAT (key %d): ", keyLength);
	fflush (stdout);
#endif /* ?TRACE_KAT_MCT */

	fprintf(fp,
		"\n"
		"==========\n"
		"\n"
		"KEYSIZE=%d\n",
		keyLength);
	fflush(fp);
	memset(keyMaterial, 0, sizeof (keyMaterial));
	for (i = 0; i < keyLength/8; i++) {
		sprintf(&keyMaterial[2*i], "%02X", i);
	}
	fprintf(fp, "KEY=%s\n", keyMaterial);
	
	for (i = 0; i < 16; i++) {
		pt[i] = i;
	}
	
	fprintf(fp, "\nIntermediate Ciphertext Values (Encryption)\n\n");
	makeKey(&keyInst, DIR_ENCRYPT, keyLength, keyMaterial);
	blockPrint(fp, pt, "PT");
	cipherInit(&cipherInst, MODE_ECB, NULL);
	for(i = 1; i < keyInst.Nr; i++) {
		cipherUpdateRounds(&cipherInst, &keyInst, pt, 16, ct, i);
		sprintf(format, "CT%d", i);
		blockPrint(fp, ct, format);
	}
	cipherUpdateRounds(&cipherInst, &keyInst, pt, 16, ct, keyInst.Nr);
	blockPrint(fp, ct, "CT");
	
	fprintf(fp, "\nIntermediate Ciphertext Values (Decryption)\n\n");
	makeKey(&keyInst, DIR_DECRYPT, keyLength, keyMaterial);
	blockPrint(fp, ct, "CT");
	cipherInit(&cipherInst, MODE_ECB, NULL);
	for(i = 1; i < keyInst.Nr; i++) {
		cipherUpdateRounds(&cipherInst, &keyInst, ct, 16, pt, i);
		sprintf(format, "PT%d", i);
		blockPrint(fp, pt, format);
	}
	cipherUpdateRounds(&cipherInst, &keyInst, ct, 16, pt, keyInst.Nr);
	blockPrint(fp, pt, "PT");
	
#ifdef TRACE_KAT_MCT
	printf(" done.\n");
#endif 
}
#endif /* INTERMEDIATE_VALUE_KAT */

static void makeKATs(const char *vkFile, const char *vtFile, const char *tblFile, const char *ivFile) {
	FILE *fp, *fp2;

	/* prepare Variable Key Known Answer Tests: */
	fp = fopen(vkFile, "w");
	fprintf(fp,
		"\n"
		"=========================\n"
		"\n"
		"FILENAME:  \"%s\"\n"
		"\n"
		"Electronic Codebook (ECB) Mode\n"
		"Variable Key Known Answer Tests\n"
		"\n"
		"Algorithm Name: Rijndael\n"
		"Principal Submitter: %s\n",
		vkFile, SUBMITTER);
	fflush(fp);

	rijndaelVKKAT(fp, 128);
	rijndaelVKKAT(fp, 192);
	rijndaelVKKAT(fp, 256);

	fprintf(fp,
		"\n"
		"==========");
	fclose(fp);

	/* prepare Variable Text Known Answer Tests: */
	fp = fopen(vtFile, "w");
	fprintf(fp,
		"\n"
		"=========================\n"
		"\n"
		"FILENAME:  \"%s\"\n"
		"\n"
		"Electronic Codebook (ECB) Mode\n"
		"Variable Text Known Answer Tests\n"
		"\n"
		"Algorithm Name: Rijndael\n"
		"Principal Submitter: %s\n",
		vtFile, SUBMITTER);
	fflush(fp);

	rijndaelVTKAT(fp, 128);
	rijndaelVTKAT(fp, 192);
	rijndaelVTKAT(fp, 256);

	fprintf(fp,
		"\n"
		"==========");
	fclose(fp);

	/* prepare Tables Known Answer Tests: */
	fp = fopen(tblFile, "w");
	fprintf(fp,
	    "/* Description of what tables are tested:\n"
		"   The provided implementations each use a different set of tables\n"
		"    - Java implementation: uses no tables\n"
		"    - reference C implementation: uses Logtable, Alogtable, S, Si, rcon\n"
		"    - fast C implementation: uses rcon and additionally\n"
		"        Te0, Te1, Te2, Te3, Te4, Td0, Td1, Td2, Td3, Td4.\n"
		"   All these tables are tested.\n"
		"\n"
		"=========================\n"
		"\n"
		"FILENAME:  \"%s\"\n"
		"\n"
		"Electronic Codebook (ECB) Mode\n"
		"Tables Known Answer Tests\n"
		"\n"
		"Algorithm Name: Rijndael\n"
		"Principal Submitter: %s\n",
		tblFile, SUBMITTER);
	fflush(fp);

	if (NULL != (fp2 = fopen("table.128", "r"))) {
		rijndaelTKAT(fp, 128, fp2);
		fclose(fp2);
	} else {
		printf("Table Known Answer test expects file table.128\n");
		fclose(fp);
		exit(EXIT_FAILURE);
	}
	if (NULL != (fp2 = fopen("table.192", "r"))) {
		rijndaelTKAT(fp, 192, fp2);
		fclose(fp2);
	} else {
		printf("Table Known Answer test expects file table.192\n");
		fclose(fp);
		exit(EXIT_FAILURE);		
	}
	if (NULL != (fp2 = fopen("table.256", "r"))) {
		rijndaelTKAT(fp, 256, fp2);
		fclose(fp2);
	} else {
		printf("Table Known Answer test expects file table.192\n");
		fclose(fp);
		exit(EXIT_FAILURE);
	}
	
	fprintf(fp,
		"\n"
		"==========");
	fclose(fp);

#ifdef INTERMEDIATE_VALUE_KAT
	/* prepare Intermediate Values Known Answer Tests: */
	fp = fopen(ivFile, "w");
	fprintf(fp,
		"\n"
		"=========================\n"
		"\n"
		"FILENAME:  \"%s\"\n"
		"\n"
		"Electronic Codebook (ECB) Mode\n"
		"Intermediate Value Known Answer Tests\n"
		"\n"
		"Algorithm Name: Rijndael\n"
		"Principal Submitter: %s\n",
		ivFile, SUBMITTER);
	fflush(fp);

	rijndaelIVKAT(fp, 128);
	rijndaelIVKAT(fp, 192);
	rijndaelIVKAT(fp, 256);

	fprintf(fp,
		"\n"
		"==========");
	fclose(fp);
#endif /* INTERMEDIATE_VALUE_KAT */
}

static void rijndaelECB_MCT(FILE *fp, int keyLength, BYTE direction) {
	int i, j;
	BYTE inBlock[4*4], outBlock[4*4], binKey[4*MAXKC];
	BYTE keyMaterial[320];
	keyInstance keyInst;
	cipherInstance cipherInst;

#ifdef TRACE_KAT_MCT
	int width = 0;
	clock_t elapsed = -clock();
	printf("Executing ECB MCT (%s, key %d): ",
		direction == DIR_ENCRYPT ? "ENCRYPT" : "DECRYPT", keyLength);
	fflush(stdout);
#endif /* ?TRACE_KAT_MCT */
	fprintf(fp,
		"\n"
		"=========================\n"
		"\n"
		"KEYSIZE=%d\n", keyLength);
	fflush(fp);
	memset(outBlock, 0, 16);
	memset(binKey, 0, keyLength/8);
	for (i = 0; i < 400; i++) {
#ifdef TRACE_KAT_MCT                 
        while (width-- > 0) {
        	putchar('\b');
        }
        width = printf("%d", i);
        fflush(stdout);    
#endif /* ?TRACE_KAT_MCT */
		fprintf(fp, "\nI=%d\n", i);
		/* prepare key: */
		for (j = 0; j < keyLength/8; j++) {
			sprintf(&keyMaterial[2*j], "%02X", binKey[j]);
		}
		keyMaterial[keyLength/4] = 0;
		fprintf(fp, "KEY=%s\n", keyMaterial);
		makeKey(&keyInst, direction, keyLength, keyMaterial);
		/* do encryption/decryption: */
		blockPrint(fp, outBlock, direction == DIR_ENCRYPT ? "PT" : "CT");
		cipherInit(&cipherInst, MODE_ECB, NULL);
		if (direction == DIR_ENCRYPT) {
			for (j = 0; j < 10000; j++) {
				memcpy(inBlock, outBlock, 16);
				blockEncrypt(&cipherInst, &keyInst, inBlock, 128, outBlock);
			}
		} else {
			for (j = 0; j < 10000; j++) {
				memcpy(inBlock, outBlock, 16);
				blockDecrypt(&cipherInst, &keyInst, inBlock, 128, outBlock);
			}
		}
		blockPrint(fp, outBlock, direction == DIR_ENCRYPT ? "CT" : "PT");
		/* prepare new key: */
		switch (keyLength) {
		case 128:
			for (j = 0; j < 128/8; j++) {
				binKey[j] ^= outBlock[j];
			}
			break;
		case 192:
			for (j = 0; j < 64/8; j++) {
				binKey[j] ^= inBlock[j + 64/8];
			}
			for (j = 0; j < 128/8; j++) {
				binKey[j + 64/8] ^= outBlock[j];
			}
			break;
		case 256:
			for (j = 0; j < 128/8; j++) {
				binKey[j] ^= inBlock[j];
			}
			for (j = 0; j < 128/8; j++) {
				binKey[j + 128/8] ^= outBlock[j];
			}
			break;
		}
	}
#ifdef TRACE_KAT_MCT
	elapsed += clock();
    while (width-- > 0) {
    	putchar('\b');
    }
	printf("%d done (%.1f s).\n", i, (float)elapsed/CLOCKS_PER_SEC);
#endif /* ?TRACE_KAT_MCT */
} /* rijndaelECB_MCT */


static void rijndaelCBC_MCT(FILE *fp, int keyLength, BYTE direction) {
	int i, j, r, t;
	BYTE inBlock[256/8], outBlock[256/8], binKey[256/8], cv[256/8];
	BYTE keyMaterial[320];
	keyInstance keyInst;
	cipherInstance cipherInst;

#ifdef TRACE_KAT_MCT
	int width = 0;
	clock_t elapsed = -clock();
	printf("Executing CBC MCT (%s, key %d): ",
		direction == DIR_ENCRYPT ? "ENCRYPT" : "DECRYPT", keyLength);
	fflush (stdout);
#endif /* ?TRACE_KAT_MCT */
	fprintf (fp,
		"\n"
		"==========\n"
		"\n"
		"KEYSIZE=%d\n", keyLength);
	fflush(fp);
	memset(cv, 0, 16);
	memset(inBlock, 0, 16);
	memset(binKey, 0, keyLength/8);
	for (i = 0; i < 400; i++) {
#ifdef TRACE_KAT_MCT                 
        while (width-- > 0) {
        	putchar('\b');
        }
        width = printf("%d", i);
        fflush(stdout);    
#endif /* ?TRACE_KAT_MCT */
		fprintf (fp, "\nI=%d\n", i);
		/* prepare key: */
		for (j = 0; j < keyLength/8; j++) {
			sprintf (&keyMaterial[2*j], "%02X", binKey[j]);
		}
		keyMaterial[keyLength/4] = 0;
		fprintf(fp, "KEY=%s\n", keyMaterial);
		r = makeKey(&keyInst, direction, keyLength, keyMaterial);
		if (TRUE != r) {
			fprintf(stderr,"makeKey error %d\n",r);
			exit(-1);
		}
		r = cipherInit(&cipherInst, MODE_ECB, NULL);
		if (TRUE != r) {
			fprintf(stderr,"cipherInit error %d\n",r);
			exit(-1);
		}
		/* do encryption/decryption: */
		blockPrint(fp, cv, "IV");
		blockPrint(fp, inBlock, direction == DIR_ENCRYPT ? "PT" : "CT");
		if (direction == DIR_ENCRYPT) {
			for (j = 0; j < 10000; j++) {
				for (t = 0; t < 16; t++) {
					inBlock[t] ^= cv[t];
				}
				r = blockEncrypt(&cipherInst, &keyInst, inBlock, 128, outBlock);
				if (128 != r) {
					fprintf(stderr,"blockEncrypt error %d\n",r);
					exit(-1);
				}
				memcpy(inBlock, cv, 16);
				memcpy(cv, outBlock, 16);
			}
		} else {
			for (j = 0; j < 10000; j++) {
				blockDecrypt(&cipherInst, &keyInst, inBlock, 128, outBlock);
				for (t = 0; t < 16; t++) {
					outBlock[t] ^= cv[t];
				}
				memcpy(cv, inBlock, 16);
				memcpy(inBlock, outBlock, 16);
			}
		}
		blockPrint(fp, outBlock, direction == DIR_ENCRYPT ? "CT" : "PT");
		/* prepare new key: */
		switch (keyLength) {
		case 128:
			for (j = 0; j < 128/8; j++) {
				binKey[j] ^= outBlock[j];
			}
			break;
		case 192:
			for (j = 0; j < 64/8; j++) {
				if (direction == DIR_ENCRYPT) {
					binKey[j] ^= inBlock[j + 64/8];
				} else {
					binKey[j] ^= cv[j + 64/8];
				}
			}
			for (j = 0; j < 128/8; j++) {
				binKey[j + 64/8] ^= outBlock[j];
			}
			break;
		case 256:
			for (j = 0; j < 128/8; j++) {
				if (direction == DIR_ENCRYPT) {
					binKey[j] ^= inBlock[j];
				} else {
					binKey[j] ^= cv[j];
				}
			}
			for (j = 0; j < 128/8; j++) {
				binKey[j + 128/8] ^= outBlock[j];
			}
			break;
		}
	}
#ifdef TRACE_KAT_MCT
	elapsed += clock();
    while (width-- > 0) {
    	putchar('\b');
    }
	printf("%d done (%.1f s).\n", i, (float)elapsed/CLOCKS_PER_SEC);
#endif /* ?TRACE_KAT_MCT */
} /* rijndaelCBC_MCT */


static void makeMCTs(const char *ecbEncryptionFile, const char *ecbDecryptionFile,
		const char *cbcEncryptionFile, const char *cbcDecryptionFile) {
	FILE *fp;

	/* prepare ECB Encryption Monte Carlo Tests: */
	fp = fopen(ecbEncryptionFile, "w");
	fprintf(fp,
		"\n"
		"=========================\n"
		"\n"
		"FILENAME:  \"%s\"\n"
		"\n"
		"Electronic Codebook (ECB) Mode - ENCRYPTION\n"
		"Monte Carlo Test\n"
		"\n"
		"Algorithm Name: Rijndael\n"
		"Principal Submitter: %s\n",
		ecbEncryptionFile, SUBMITTER);
	fflush(fp);

	rijndaelECB_MCT(fp, 128, DIR_ENCRYPT);
	rijndaelECB_MCT(fp, 192, DIR_ENCRYPT);
	rijndaelECB_MCT(fp, 256, DIR_ENCRYPT);

	fprintf(fp,
		"\n"
		"===========");
	fclose(fp);

	/* prepare ECB Decryption Monte Carlo Tests: */
	fp = fopen(ecbDecryptionFile, "w");
	fprintf(fp,
		"\n"
		"=========================\n"
		"\n"
		"FILENAME:  \"%s\"\n"
		"\n"
		"Electronic Codebook (ECB) Mode - DECRYPTION\n"
		"Monte Carlo Test\n"
		"\n"
		"Algorithm Name: Rijndael\n"
		"Principal Submitter: %s\n",
		ecbDecryptionFile, SUBMITTER);
	fflush(fp);

	rijndaelECB_MCT(fp, 128, DIR_DECRYPT);
	rijndaelECB_MCT(fp, 192, DIR_DECRYPT);
	rijndaelECB_MCT(fp, 256, DIR_DECRYPT);

	fprintf(fp,
		"\n"
		"===========");
	fclose(fp);

	/* prepare CBC Encryption Monte Carlo Tests: */
	fp = fopen (cbcEncryptionFile, "w");
	fprintf(fp,
		"\n"
		"=========================\n"
		"\n"
		"FILENAME:  \"%s\"\n"
		"\n"
		"Cipher Block Chaining (CBC) Mode - ENCRYPTION\n"
		"Monte Carlo Test\n"
		"\n"
		"Algorithm Name: Rijndael\n"
		"Principal Submitter: %s\n",
		cbcEncryptionFile, SUBMITTER);
	fflush(fp);

	rijndaelCBC_MCT(fp, 128, DIR_ENCRYPT);
	rijndaelCBC_MCT(fp, 192, DIR_ENCRYPT);
	rijndaelCBC_MCT(fp, 256, DIR_ENCRYPT);

	fprintf(fp,
		"\n"
		"===========");
	fclose(fp);

	/* prepare CBC Decryption Monte Carlo Tests: */
	fp = fopen(cbcDecryptionFile, "w");
	fprintf(fp,
		"\n"
		"=========================\n"
		"\n"
		"FILENAME:  \"%s\"\n"
		"\n"
		"Cipher Block Chaining (CBC) Mode - DECRYPTION\n"
		"Monte Carlo Test\n"
		"\n"
		"Algorithm Name: Rijndael\n"
		"Principal Submitter: %s\n",
		cbcDecryptionFile, SUBMITTER);
	fflush(fp);

	rijndaelCBC_MCT(fp, 128, DIR_DECRYPT);
	rijndaelCBC_MCT(fp, 192, DIR_DECRYPT);
	rijndaelCBC_MCT(fp, 256, DIR_DECRYPT);

	fprintf(fp,
		"\n"
		"===========");
	fclose(fp);
} /* makeMCTs */

static void makeFIPSTestVectors(const char *fipsFile) {
	int i, keyLength, r;
	keyInstance keyInst;
	cipherInstance cipherInst;
	BYTE keyMaterial[320];
	u8 pt[16], ct[16];
	char format[64];
	FILE *fp;

#ifdef TRACE_KAT_MCT
	printf("Generating FIPS test vectors...");
#endif /* ?TRACE_KAT_MCT */
	
	fp = fopen(fipsFile, "w");
	fprintf(fp,
		"\n"
		"================================\n\n"
		"FILENAME:  \"%s\"\n\n"
		"FIPS Test Vectors\n",
		fipsFile);

	/* 128-bit key: 00010103...0e0f: */
	keyLength = 128;
	memset(keyMaterial, 0, sizeof (keyMaterial));
	for (i = 0; i < keyLength/8; i++) {
		sprintf(&keyMaterial[2*i], "%02X", i);
	}
	
	fprintf(fp, "\n================================\n\n");
	fprintf(fp, "KEYSIZE=128\n\n");
    fprintf(fp, "KEY=%s\n\n", keyMaterial);

	/* plaintext is always 00112233...eeff: */
	for (i = 0; i < 16; i++) {
		pt[i] = (i << 4) | i;
	}

    /* encryption: */	
	makeKey(&keyInst, DIR_ENCRYPT, keyLength, keyMaterial);
	cipherInit(&cipherInst, MODE_ECB, NULL);
	fprintf(fp, "Round Subkey Values (Encryption)\n\n");
    for (r = 0; r <= keyInst.Nr; r++) {
        fprintf(fp, "RK%d=", r);
        for (i = 0; i < 4; i++) {
            u32 w = keyInst.rk[4*r + i];
            fprintf(fp, "%02X%02X%02X%02X", w >> 24, (w >> 16) & 0xff, (w >> 8) & 0xff, w & 0xff);
        }
        fprintf(fp, "\n");
    }
	fprintf(fp, "\nIntermediate Ciphertext Values (Encryption)\n\n");
	blockPrint(fp, pt, "PT");
	for (i = 1; i < keyInst.Nr; i++) {
		cipherUpdateRounds(&cipherInst, &keyInst, pt, 16, ct, i);
		sprintf(format, "CT%d", i);
		blockPrint(fp, ct, format);
	}
	cipherUpdateRounds(&cipherInst, &keyInst, pt, 16, ct, keyInst.Nr);
	blockPrint(fp, ct, "CT");
	
    /* decryption: */	
	makeKey(&keyInst, DIR_DECRYPT, keyLength, keyMaterial);
	cipherInit(&cipherInst, MODE_ECB, NULL);
	fprintf(fp, "\nRound Subkey Values (Decryption)\n\n");
    for (r = 0; r <= keyInst.Nr; r++) {
        fprintf(fp, "RK%d=", r);
        for (i = 0; i < 4; i++) {
            u32 w = keyInst.rk[4*r + i];
            fprintf(fp, "%02X%02X%02X%02X", w >> 24, (w >> 16) & 0xff, (w >> 8) & 0xff, w & 0xff);
        }
        fprintf(fp, "\n");
    }
	fprintf(fp, "\nIntermediate Ciphertext Values (Decryption)\n\n");
	blockPrint(fp, ct, "CT");
	for (i = 1; i < keyInst.Nr; i++) {
		cipherUpdateRounds(&cipherInst, &keyInst, ct, 16, pt, i);
		sprintf(format, "PT%d", i);
		blockPrint(fp, pt, format);
	}
	cipherUpdateRounds(&cipherInst, &keyInst, ct, 16, pt, keyInst.Nr);
	blockPrint(fp, pt, "PT");

	/* 192-bit key: 00010103...1617: */
	keyLength = 192;
	memset(keyMaterial, 0, sizeof (keyMaterial));
	for (i = 0; i < keyLength/8; i++) {
		sprintf(&keyMaterial[2*i], "%02X", i);
	}
	
	fprintf(fp, "\n================================\n\n");
	fprintf(fp, "KEYSIZE=192\n\n");
    fprintf(fp, "KEY=%s\n\n", keyMaterial);

	/* plaintext is always 00112233...eeff: */
	for (i = 0; i < 16; i++) {
		pt[i] = (i << 4) | i;
	}

    /* encryption: */	
	makeKey(&keyInst, DIR_ENCRYPT, keyLength, keyMaterial);
	cipherInit(&cipherInst, MODE_ECB, NULL);
	fprintf(fp, "\nRound Subkey Values (Encryption)\n\n");
    for (r = 0; r <= keyInst.Nr; r++) {
        fprintf(fp, "RK%d=", r);
        for (i = 0; i < 4; i++) {
            u32 w = keyInst.rk[4*r + i];
            fprintf(fp, "%02X%02X%02X%02X", w >> 24, (w >> 16) & 0xff, (w >> 8) & 0xff, w & 0xff);
        }
        fprintf(fp, "\n");
    }
	fprintf(fp, "\nIntermediate Ciphertext Values (Encryption)\n\n");
	blockPrint(fp, pt, "PT");
	for (i = 1; i < keyInst.Nr; i++) {
		cipherUpdateRounds(&cipherInst, &keyInst, pt, 16, ct, i);
		sprintf(format, "CT%d", i);
		blockPrint(fp, ct, format);
	}
	cipherUpdateRounds(&cipherInst, &keyInst, pt, 16, ct, keyInst.Nr);
	blockPrint(fp, ct, "CT");
	
    /* decryption: */	
	makeKey(&keyInst, DIR_DECRYPT, keyLength, keyMaterial);
	cipherInit(&cipherInst, MODE_ECB, NULL);
	fprintf(fp, "\nRound Subkey Values (Decryption)\n\n");
    for (r = 0; r <= keyInst.Nr; r++) {
        fprintf(fp, "RK%d=", r);
        for (i = 0; i < 4; i++) {
            u32 w = keyInst.rk[4*r + i];
            fprintf(fp, "%02X%02X%02X%02X", w >> 24, (w >> 16) & 0xff, (w >> 8) & 0xff, w & 0xff);
        }
        fprintf(fp, "\n");
    }
	fprintf(fp, "\nIntermediate Ciphertext Values (Decryption)\n\n");
	blockPrint(fp, ct, "CT");
	for(i = 1; i < keyInst.Nr; i++) {
		cipherUpdateRounds(&cipherInst, &keyInst, ct, 16, pt, i);
		sprintf(format, "PT%d", i);
		blockPrint(fp, pt, format);
	}
	cipherUpdateRounds(&cipherInst, &keyInst, ct, 16, pt, keyInst.Nr);
	blockPrint(fp, pt, "PT");

	/* 256-bit key: 00010103...1e1f: */
	keyLength = 256;
	memset(keyMaterial, 0, sizeof (keyMaterial));
	for (i = 0; i < keyLength/8; i++) {
		sprintf(&keyMaterial[2*i], "%02X", i);
	}
	
	fprintf(fp, "\n================================\n\n");
	fprintf(fp, "KEYSIZE=256\n\n");
    fprintf(fp, "KEY=%s\n\n", keyMaterial);

	/* plaintext is always 00112233...eeff: */
	for (i = 0; i < 16; i++) {
		pt[i] = (i << 4) | i;
	}

    /* encryption: */	
	makeKey(&keyInst, DIR_ENCRYPT, keyLength, keyMaterial);
	cipherInit(&cipherInst, MODE_ECB, NULL);
	fprintf(fp, "\nRound Subkey Values (Encryption)\n\n");
    for (r = 0; r <= keyInst.Nr; r++) {
        fprintf(fp, "RK%d=", r);
        for (i = 0; i < 4; i++) {
            u32 w = keyInst.rk[4*r + i];
            fprintf(fp, "%02X%02X%02X%02X", w >> 24, (w >> 16) & 0xff, (w >> 8) & 0xff, w & 0xff);
        }
        fprintf(fp, "\n");
    }
	fprintf(fp, "\nIntermediate Ciphertext Values (Encryption)\n\n");
	blockPrint(fp, pt, "PT");
	for(i = 1; i < keyInst.Nr; i++) {
		cipherUpdateRounds(&cipherInst, &keyInst, pt, 16, ct, i);
		sprintf(format, "CT%d", i);
		blockPrint(fp, ct, format);
	}
	cipherUpdateRounds(&cipherInst, &keyInst, pt, 16, ct, keyInst.Nr);
	blockPrint(fp, ct, "CT");
	
    /* decryption: */	
	makeKey(&keyInst, DIR_DECRYPT, keyLength, keyMaterial);
	cipherInit(&cipherInst, MODE_ECB, NULL);
	fprintf(fp, "\nRound Subkey Values (Decryption)\n\n");
    for (r = 0; r <= keyInst.Nr; r++) {
        fprintf(fp, "RK%d=", r);
        for (i = 0; i < 4; i++) {
            u32 w = keyInst.rk[4*r + i];
            fprintf(fp, "%02X%02X%02X%02X", w >> 24, (w >> 16) & 0xff, (w >> 8) & 0xff, w & 0xff);
        }
        fprintf(fp, "\n");
    }
	fprintf(fp, "\nIntermediate Ciphertext Values (Decryption)\n\n");
	blockPrint(fp, ct, "CT");
	for(i = 1; i < keyInst.Nr; i++) {
		cipherUpdateRounds(&cipherInst, &keyInst, ct, 16, pt, i);
		sprintf(format, "PT%d", i);
		blockPrint(fp, pt, format);
	}
	cipherUpdateRounds(&cipherInst, &keyInst, ct, 16, pt, keyInst.Nr);
	blockPrint(fp, pt, "PT");

    fprintf(fp, "\n");
	fclose(fp);
#ifdef TRACE_KAT_MCT
	printf(" done.\n");
#endif /* ?TRACE_KAT_MCT */
}

#define ITERATIONS 10000000

void rijndaelSpeed(int keyBits) {
	int Nr, i;
	u32 rk[4*(MAXNR + 1)];
	u8 cipherKey[256/8], pt[16], ct[16];
	clock_t elapsed;
	float sec;

	memset(cipherKey, 0, sizeof(cipherKey));
	printf("================================\n");
	printf("Speed measurement for %d-bit keys:\n", keyBits);

	/*
	 * Encryption key setup timing:
	 */
	elapsed = -clock();
	for (i = 0; i < ITERATIONS; i++) {
		Nr = rijndaelKeySetupEnc(rk, cipherKey, keyBits);
	}
	elapsed += clock();
	sec = (float)elapsed/CLOCKS_PER_SEC;
	printf("Encryption key schedule: %.1f s, %.0f Mbit/s\n",
		sec, (float)ITERATIONS*128/sec/1000000);

	/*
	 * Encryption timing:
	 */
	elapsed = -clock();
	for (i = 0; i < ITERATIONS; i++) {
		rijndaelEncrypt(rk, Nr, pt, ct);
	}
	elapsed += clock();
	sec = (float)elapsed/CLOCKS_PER_SEC;
	printf("Encryption: %.1f s, %.0f Mbit/s\n",
		sec, (float)ITERATIONS*128/sec/1000000);

	/*
	 * Decryption key setup timing:
	 */
	elapsed = -clock();
	for (i = 0; i < ITERATIONS; i++) {
		Nr = rijndaelKeySetupDec(rk, cipherKey, keyBits);
	}
	elapsed += clock();
	sec = (float)elapsed/CLOCKS_PER_SEC;
	printf("Decryption key schedule: %.1f s, %.0f Mbit/s\n",
		sec, (float)ITERATIONS*128/sec/1000000);

	/*
	 * Decryption timing:
	 */
	elapsed = -clock();
	for (i = 0; i < ITERATIONS; i++) {
		rijndaelDecrypt(rk, Nr, pt, ct);
	}
	elapsed += clock();
	sec = (float)elapsed/CLOCKS_PER_SEC;
	printf("Decryption: %.1f s, %.0f Mbit/s\n",
		sec, (float)ITERATIONS*128/sec/1000000);

}

int main(void) {
	makeFIPSTestVectors("fips-test-vectors.txt");
	makeKATs("ecb_vk.txt", "ecb_vt.txt", "ecb_tbl.txt", "ecb_iv.txt");
	makeMCTs("ecb_e_m.txt", "ecb_d_m.txt", "cbc_e_m.txt", "cbc_d_m.txt");
	/*
	rijndaelSpeed(128);
	rijndaelSpeed(192);
	rijndaelSpeed(256);
	*/
	return 0;
}