circom/circuits/sha256/t2.circom

include "binsum.circom";
include "sigma.circom";
include "maj.circom"

template T2() {
    signal input a[32];
    signal input b[32];
    signal input c[32];
    signal output out[32];

    component sum = BinSum(32, 2);

    component bigsigma0 = BigSigma(2, 13, 22);
    component maj = Maj(32);

    for (var k=0; k<32; k++) {

        bigsigma0.in[k] <== a[k];
        maj.a[k] <== a[k];
        maj.b[k] <== b[k];
        maj.c[k] <== c[k];

        sum.in[0][k] <== bigsigma0.out[k];
        sum.in[1][k] <== maj.out[k];

        out[k] <== sum.out[k];
    }
}