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solutions/zokrates_prover/.zokrates/stdlib/hashes/sha256/embed/IVconstants.zok

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2023-12-05 06:06:28 +00:00
// SHA-256 is specified in FIPS 180-3 and initial values are listed in section 5.3.3
// https://csrc.nist.gov/csrc/media/publications/fips/180/3/archive/2008-10-31/documents/fips180-3_final.pdf
def main() -> bool[256] {
bool[32] h0 = [false, true, true, false, true, false, true, false, false, false, false, false, true, false, false, true, true, true, true, false, false, true, true, false, false, true, true, false, false, true, true, true];
bool[32] h1 = [true, false, true, true, true, false, true, true, false, true, true, false, false, true, true, true, true, false, true, false, true, true, true, false, true, false, false, false, false, true, false, true];
bool[32] h2 = [false, false, true, true, true, true, false, false, false, true, true, false, true, true, true, false, true, true, true, true, false, false, true, true, false, true, true, true, false, false, true, false];
bool[32] h3 = [true, false, true, false, false, true, false, true, false, true, false, false, true, true, true, true, true, true, true, true, false, true, false, true, false, false, true, true, true, false, true, false];
bool[32] h4 = [false, true, false, true, false, false, false, true, false, false, false, false, true, true, true, false, false, true, false, true, false, false, true, false, false, true, true, true, true, true, true, true];
bool[32] h5 = [true, false, false, true, true, false, true, true, false, false, false, false, false, true, false, true, false, true, true, false, true, false, false, false, true, false, false, false, true, true, false, false];
bool[32] h6 = [false, false, false, true, true, true, true, true, true, false, false, false, false, false, true, true, true, true, false, true, true, false, false, true, true, false, true, false, true, false, true, true];
bool[32] h7 = [false, true, false, true, true, false, true, true, true, true, true, false, false, false, false, false, true, true, false, false, true, true, false, true, false, false, false, true, true, false, false, true];
bool[256] IV = [...h0, ...h1, ...h2, ...h3, ...h4, ...h5, ...h6, ...h7];
return IV;
}