internal override void ProcessBlock()
{
int a, aa;
int b, bb;
int c, cc;
int d, dd;
int t;
a = H0;
b = H1;
c = H2;
d = H3;
aa = H4;
bb = H5;
cc = H6;
dd = H7;
//
// Round 1
//
a = F1(a, b, c, d, X[0], 11);
d = F1(d, a, b, c, X[1], 14);
c = F1(c, d, a, b, X[2], 15);
b = F1(b, c, d, a, X[3], 12);
a = F1(a, b, c, d, X[4], 5);
d = F1(d, a, b, c, X[5], 8);
c = F1(c, d, a, b, X[6], 7);
b = F1(b, c, d, a, X[7], 9);
a = F1(a, b, c, d, X[8], 11);
d = F1(d, a, b, c, X[9], 13);
c = F1(c, d, a, b, X[10], 14);
b = F1(b, c, d, a, X[11], 15);
a = F1(a, b, c, d, X[12], 6);
d = F1(d, a, b, c, X[13], 7);
c = F1(c, d, a, b, X[14], 9);
b = F1(b, c, d, a, X[15], 8);
aa = FF4(aa, bb, cc, dd, X[5], 8);
dd = FF4(dd, aa, bb, cc, X[14], 9);
cc = FF4(cc, dd, aa, bb, X[7], 9);
bb = FF4(bb, cc, dd, aa, X[0], 11);
aa = FF4(aa, bb, cc, dd, X[9], 13);
dd = FF4(dd, aa, bb, cc, X[2], 15);
cc = FF4(cc, dd, aa, bb, X[11], 15);
bb = FF4(bb, cc, dd, aa, X[4], 5);
aa = FF4(aa, bb, cc, dd, X[13], 7);
dd = FF4(dd, aa, bb, cc, X[6], 7);
cc = FF4(cc, dd, aa, bb, X[15], 8);
bb = FF4(bb, cc, dd, aa, X[8], 11);
aa = FF4(aa, bb, cc, dd, X[1], 14);
dd = FF4(dd, aa, bb, cc, X[10], 14);
cc = FF4(cc, dd, aa, bb, X[3], 12);
bb = FF4(bb, cc, dd, aa, X[12], 6);
t = a; a = aa; aa = t;
//
// Round 2
//
a = F2(a, b, c, d, X[7], 7);
d = F2(d, a, b, c, X[4], 6);
c = F2(c, d, a, b, X[13], 8);
b = F2(b, c, d, a, X[1], 13);
a = F2(a, b, c, d, X[10], 11);
d = F2(d, a, b, c, X[6], 9);
c = F2(c, d, a, b, X[15], 7);
b = F2(b, c, d, a, X[3], 15);
a = F2(a, b, c, d, X[12], 7);
d = F2(d, a, b, c, X[0], 12);
c = F2(c, d, a, b, X[9], 15);
b = F2(b, c, d, a, X[5], 9);
a = F2(a, b, c, d, X[2], 11);
d = F2(d, a, b, c, X[14], 7);
c = F2(c, d, a, b, X[11], 13);
b = F2(b, c, d, a, X[8], 12);
aa = FF3(aa, bb, cc, dd, X[6], 9);
dd = FF3(dd, aa, bb, cc, X[11], 13);
cc = FF3(cc, dd, aa, bb, X[3], 15);
bb = FF3(bb, cc, dd, aa, X[7], 7);
aa = FF3(aa, bb, cc, dd, X[0], 12);
dd = FF3(dd, aa, bb, cc, X[13], 8);
cc = FF3(cc, dd, aa, bb, X[5], 9);
bb = FF3(bb, cc, dd, aa, X[10], 11);
aa = FF3(aa, bb, cc, dd, X[14], 7);
dd = FF3(dd, aa, bb, cc, X[15], 7);
cc = FF3(cc, dd, aa, bb, X[8], 12);
bb = FF3(bb, cc, dd, aa, X[12], 7);
aa = FF3(aa, bb, cc, dd, X[4], 6);
dd = FF3(dd, aa, bb, cc, X[9], 15);
cc = FF3(cc, dd, aa, bb, X[1], 13);
bb = FF3(bb, cc, dd, aa, X[2], 11);
t = b; b = bb; bb = t;
//
// Round 3
//
a = F3(a, b, c, d, X[3], 11);
d = F3(d, a, b, c, X[10], 13);
c = F3(c, d, a, b, X[14], 6);
b = F3(b, c, d, a, X[4], 7);
a = F3(a, b, c, d, X[9], 14);
d = F3(d, a, b, c, X[15], 9);
c = F3(c, d, a, b, X[8], 13);
b = F3(b, c, d, a, X[1], 15);
a = F3(a, b, c, d, X[2], 14);
d = F3(d, a, b, c, X[7], 8);
c = F3(c, d, a, b, X[0], 13);
b = F3(b, c, d, a, X[6], 6);
a = F3(a, b, c, d, X[13], 5);
d = F3(d, a, b, c, X[11], 12);
c = F3(c, d, a, b, X[5], 7);
b = F3(b, c, d, a, X[12], 5);
aa = FF2(aa, bb, cc, dd, X[15], 9);
dd = FF2(dd, aa, bb, cc, X[5], 7);
cc = FF2(cc, dd, aa, bb, X[1], 15);
bb = FF2(bb, cc, dd, aa, X[3], 11);
aa = FF2(aa, bb, cc, dd, X[7], 8);
dd = FF2(dd, aa, bb, cc, X[14], 6);
cc = FF2(cc, dd, aa, bb, X[6], 6);
bb = FF2(bb, cc, dd, aa, X[9], 14);
aa = FF2(aa, bb, cc, dd, X[11], 12);
dd = FF2(dd, aa, bb, cc, X[8], 13);
cc = FF2(cc, dd, aa, bb, X[12], 5);
bb = FF2(bb, cc, dd, aa, X[2], 14);
aa = FF2(aa, bb, cc, dd, X[10], 13);
dd = FF2(dd, aa, bb, cc, X[0], 13);
cc = FF2(cc, dd, aa, bb, X[4], 7);
bb = FF2(bb, cc, dd, aa, X[13], 5);
t = c; c = cc; cc = t;
//
// Round 4
//
a = F4(a, b, c, d, X[1], 11);
d = F4(d, a, b, c, X[9], 12);
c = F4(c, d, a, b, X[11], 14);
b = F4(b, c, d, a, X[10], 15);
a = F4(a, b, c, d, X[0], 14);
d = F4(d, a, b, c, X[8], 15);
c = F4(c, d, a, b, X[12], 9);
b = F4(b, c, d, a, X[4], 8);
a = F4(a, b, c, d, X[13], 9);
d = F4(d, a, b, c, X[3], 14);
c = F4(c, d, a, b, X[7], 5);
b = F4(b, c, d, a, X[15], 6);
a = F4(a, b, c, d, X[14], 8);
d = F4(d, a, b, c, X[5], 6);
c = F4(c, d, a, b, X[6], 5);
b = F4(b, c, d, a, X[2], 12);
aa = FF1(aa, bb, cc, dd, X[8], 15);
dd = FF1(dd, aa, bb, cc, X[6], 5);
cc = FF1(cc, dd, aa, bb, X[4], 8);
bb = FF1(bb, cc, dd, aa, X[1], 11);
aa = FF1(aa, bb, cc, dd, X[3], 14);
dd = FF1(dd, aa, bb, cc, X[11], 14);
cc = FF1(cc, dd, aa, bb, X[15], 6);
bb = FF1(bb, cc, dd, aa, X[0], 14);
aa = FF1(aa, bb, cc, dd, X[5], 6);
dd = FF1(dd, aa, bb, cc, X[12], 9);
cc = FF1(cc, dd, aa, bb, X[2], 12);
bb = FF1(bb, cc, dd, aa, X[13], 9);
aa = FF1(aa, bb, cc, dd, X[9], 12);
dd = FF1(dd, aa, bb, cc, X[7], 5);
cc = FF1(cc, dd, aa, bb, X[10], 15);
bb = FF1(bb, cc, dd, aa, X[14], 8);
t = d; d = dd; dd = t;
H0 += a;
H1 += b;
H2 += c;
H3 += d;
H4 += aa;
H5 += bb;
H6 += cc;
H7 += dd;
//
// reset the offset and clean out the word buffer.
//
xOff = 0;
for (int i = 0; i != X.Length; i++)
{
X[i] = 0;
}
}
}
