int i, j, l, m, n;
        final int[] pc1m = new int[56];
        final int[] pcr = new int[56];
        final int[] kn = new int[32];

        for (j = 0; j < 56; ++j) {
            l = pc1[j];
            m = l & 07;
            pc1m[j] = (keyBlock[l >>> 3] & bytebit[m]) != 0 ? 1 : 0;
        }

        for (i = 0; i < 16; ++i) {

            if (encrypting) {
                m = i << 1;