Struct chacha20::ChaCha20

pub struct ChaCha20 { /* private fields */ }

The ChaCha20 stream cipher.

Implementations

impl ChaCha20

pub fn new(key: [u8; 32], nonce: [u8; 12], seek: u32) -> Self

Make a new instance of ChaCha20 from an index in the keystream.

pub fn new_from_block(key: [u8; 32], nonce: [u8; 12], block: u32) -> Self

Make a new instance of ChaCha20 from a block in the keystream.

pub fn apply_keystream<'a>(&'a mut self, to: &'a mut [u8]) -> &[u8]

Apply the keystream to a message.

pub fn get_keystream(&mut self, block: u32) -> [u8; 64]

Get the keystream block at a specified block.

pub fn seek(&mut self, seek: u32)

Update the index of the keystream to an index in the keystream.

pub fn block(&mut self, block: u32)

Update the index of the keystream to a block.

Trait Implementations

impl Debug for ChaCha20

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.