keccakf/
state.rs

1use crate::Permutation;
2
3macro_rules! define_keccak_state {
4    ($ty:ident, $length:expr, $pty:ty, $kf:ident) => {
5        #[derive(Clone, Debug)]
6        #[repr(align(8))]
7        /// State of keccak
8        pub struct $ty([u8; 200]);
9
10        impl Default for $ty {
11            fn default() -> Self {
12                Self([0u8; 200])
13            }
14        }
15
16        impl Permutation for $ty {
17            fn permute(&mut self) {
18                let s = unsafe { &mut *(self as *mut Self as *mut [$pty; 25]) };
19
20                crate::$kf(s);
21            }
22        }
23
24        impl AsRef<[u8]> for $ty {
25            fn as_ref(&self) -> &[u8] {
26                &self.0
27            }
28        }
29    };
30}
31
32define_keccak_state!(Keccak1600State, 200, u64, keccakf1600);
33define_keccak_state!(Keccak800State, 100, u32, keccakf800);
34define_keccak_state!(Keccak400State, 50, u16, keccakf400);
35define_keccak_state!(Keccak200State, 25, u8, keccakf200);
keccakf/state.rs

keccakf/
state.rs
