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#![crate_type = "lib"]
#![crate_name = "keccakrs"]
#[macro_use] extern crate crunchy;
mod constants;
mod round;
mod keccak_f;
mod sponge;
mod padder;
use sponge::*;
use padder::*;
pub fn new_keccak1600_224() -> Keccak { Keccak::new(1152, 448) }
pub fn new_keccak1600_256() -> Keccak { Keccak::new(1088, 512) }
pub fn new_keccak1600_384() -> Keccak { Keccak::new(832, 768) }
pub fn new_keccak1600_512() -> Keccak { Keccak::new(576, 1024) }
pub struct Keccak {
state: [u64; 25],
data_queue: Vec<u8>,
sponge: Sponge,
input_padder: Padder
}
impl Keccak {
pub fn new(rate: usize, capacity: usize) -> Keccak {
Keccak {
state: [0; 25],
sponge: Sponge::new(rate, capacity),
input_padder: Padder::new(rate),
data_queue: vec![]
}
}
pub fn injest(&mut self, input: &mut String) {
let mut input_as_bytes: Vec<u8> = input.clone().into_bytes();
self.input_padder.pad(&mut input_as_bytes);
self.data_queue = input_as_bytes;
}
pub fn hash(&mut self) -> Vec<u8> {
self.sponge.absorb(&mut self.state, &self.data_queue);
self.sponge.squeeze(&mut self.state)
}
pub fn get_internal_state(&mut self) -> &[u64] {
&self.state
}
}