INNER CODE UNIT · Rust

h1

RustCrypto/stream-ciphers · hc-256/src/lib.rs:148

    fn h1(&self, x: u32) -> u32 {
        self.qtable[(x & 0xff) as usize]
            .wrapping_add(self.qtable[(256 + ((x >> 8) & 0xff)) as usize])
            .wrapping_add(self.qtable[(512 + ((x >> 16) & 0xff)) as usize])
            .wrapping_add(self.qtable[(768 + ((x >> 24) & 0xff)) as usize])
    }

    #[inline]
    fn h2(&self, x: u32) -> u32 {
        self.ptable[(x & 0xff) as usize]
            .wrapping_add(self.ptable[(256 + ((x >> 8) & 0xff)) as usize])
            .wrapping_add(self.ptable[(512 + ((x >> 16) & 0xff)) as usize])
            .wrapping_add(self.ptable[(768 + ((x >> 24) & 0xff)) as usize])
    }

    fn gen_word(&mut self) -> u32 {
        let i = self.idx as usize;
        let j = self.idx as usize & TABLE_MASK;

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