import "./IVconstants" as IVconstants;
import "./shaRoundNoBoolCheck" as sha256;

// A function that takes 4 bool[256] arrays as inputs
// and applies 2 rounds of sha256 compression.
// It returns an array of 256 bool.
def main(bool[256] a, bool[256] b, bool[256] c, bool[256] d) -> bool[256] {

    bool[256] IV = IVconstants();
    bool[256] digest1 = sha256(a, b, IV);
    bool[256] digest2 = sha256(c, d, digest1);

    return digest2;
}