How to use

F4

method

in

org.spongycastle.crypto.digests.RIPEMD128Digest

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);

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);