A Matrix PRNG with S-Box Output Filtering

Algorithm 4

offr:= 0

for c:= 0 to 94 increment 2 {

 b0:= Xh[c] % 256

 b1:= Xh[c]>>8 % 256

 b2:= Xh[c]>>16 % 256

 b3:= Xh[c]>>24 % 256

 Seq[offr]:= (S0[b0]^∧S1[b1]^∧S2[b2]^∧S3[b3])

 Seq[offr]:= Seq[offr] + Xh[c  +  1]

 offr:= offr + 1

}