Example #1
0
void rijndaelKeySetupEnc_Middle(u32 *rk, int rank)
{
	int i;
	u32 temp;

	int *rk_sign = (int*)rk; 
	MPI_Recv(rk_sign, 4, MPI_INT, rank - 1, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);

	for (i = 0; i < 2; i++) {
		temp  = rk[3];
		rk[4] = rk[0] ^
			TE421(temp) ^ TE432(temp) ^ TE443(temp) ^ TE414(temp) ^
			RCON(2*(rank -1) + i);
		rk[5] = rk[1] ^ rk[4];
		rk[6] = rk[2] ^ rk[5];
		rk[7] = rk[3] ^ rk[6];

		rk += 4;

	}

	if(rank != 5)
	{
		int * rk_sign = (int*)rk;
		MPI_Send(rk_sign, 4, MPI_INT, rank + 1, 0, MPI_COMM_WORLD);
	}
}
Example #2
0
/**
 * Expand the cipher key into the encryption key schedule.
 *
 * @return	the number of rounds for the given cipher key size.
 */
void rijndaelKeySetupEnc(u32 rk[/*44*/], const u8 cipherKey[]) {
    int i;
    u32 temp;

    rk[0] = GETU32(cipherKey);
    rk[1] = GETU32(cipherKey + 4);
    rk[2] = GETU32(cipherKey + 8);
    rk[3] = GETU32(cipherKey + 12);
    for (i = 0; i < 10; i++) {
        temp = rk[3];
        rk[4] = rk[0] ^
                TE421(temp) ^ TE432(temp) ^ TE443(temp) ^ TE414(temp) ^
                RCON(i);
        rk[5] = rk[1] ^ rk[4];
        rk[6] = rk[2] ^ rk[5];
        rk[7] = rk[3] ^ rk[6];
        rk += 4;
    }
}
/**
 * Expand the cipher key into the encryption key schedule.
 *
 * @return	the number of rounds for the given cipher key size.
 */
int rijndaelKeySetupEnc(u32 rk[], const u8 cipherKey[], int keyBits)
{
	int i;
	u32 temp;

	rk[0] = GETU32(cipherKey     );
	rk[1] = GETU32(cipherKey +  4);
	rk[2] = GETU32(cipherKey +  8);
	rk[3] = GETU32(cipherKey + 12);

	if (keyBits == 128) {
		for (i = 0; i < 10; i++) {
			temp  = rk[3];
			rk[4] = rk[0] ^ TE421(temp) ^ TE432(temp) ^
				TE443(temp) ^ TE414(temp) ^ RCON(i);
			rk[5] = rk[1] ^ rk[4];
			rk[6] = rk[2] ^ rk[5];
			rk[7] = rk[3] ^ rk[6];
			rk += 4;
		}
		return 10;
	}

	rk[4] = GETU32(cipherKey + 16);
	rk[5] = GETU32(cipherKey + 20);

	if (keyBits == 192) {
		for (i = 0; i < 8; i++) {
			temp  = rk[5];
			rk[6] = rk[0] ^ TE421(temp) ^ TE432(temp) ^
				TE443(temp) ^ TE414(temp) ^ RCON(i);
			rk[7] = rk[1] ^ rk[6];
			rk[8] = rk[2] ^ rk[7];
			rk[9] = rk[3] ^ rk[8];
			if (i == 7)
				return 12;
			rk[10] = rk[4] ^ rk[9];
			rk[11] = rk[5] ^ rk[10];
			rk += 6;
		}
	}

	rk[6] = GETU32(cipherKey + 24);
	rk[7] = GETU32(cipherKey + 28);

	if (keyBits == 256) {
		for (i = 0; i < 7; i++) {
			temp  = rk[7];
			rk[8] = rk[0] ^ TE421(temp) ^ TE432(temp) ^
				TE443(temp) ^ TE414(temp) ^ RCON(i);
			rk[9] = rk[1] ^ rk[8];
			rk[10] = rk[2] ^ rk[9];
			rk[11] = rk[3] ^ rk[10];
			if (i == 6)
				return 14;
			temp  = rk[11];
			rk[12] = rk[4] ^ TE411(temp) ^ TE422(temp) ^
				TE433(temp) ^ TE444(temp);
			rk[13] = rk[5] ^ rk[12];
			rk[14] = rk[6] ^ rk[13];
			rk[15] = rk[7] ^ rk[14];
			rk += 8;
		}
	}

	return -1;
}