penis 0.1.1

A Rust implementation of the Penis Protocol
Documentation 
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use crate::structs::State;

/// SHA-256 round constants
///
/// These constants are the first 32 bits of the fractional parts of the
/// cube roots of the first 64 primes (2..311). They are used in each
/// round of the SHA-256 compression function to add non-linearity to
/// the hash computation.
///
/// The values are stored in big-endian format and are used in sequence
/// during the hash computation process.
pub(crate) const SCHEDULE_SEED: [u32; 64] = [
    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
];

/// Initial hash values for SHA-256
///
/// These values represent the first 32 bits of the fractional parts of
/// the square roots of the first 8 primes (2..19). They form the initial
/// state of the hash computation before any data is processed.
///
/// The values are stored in big-endian format and are used to initialize
/// the hash state variables (a through h) at the start of each hash
/// computation.
pub(crate) const INITIAL_STATE: State = State {
    a: 0x6a09e667, // sqrt(2)
    b: 0xbb67ae85, // sqrt(3)
    c: 0x3c6ef372, // sqrt(5)
    d: 0xa54ff53a, // sqrt(7)
    e: 0x510e527f, // sqrt(11)
    f: 0x9b05688c, // sqrt(13)
    g: 0x1f83d9ab, // sqrt(17)
    h: 0x5be0cd19, // sqrt(19)
};