Struct SimpleStreamCipher

pub struct SimpleStreamCipher(/* private fields */);

Simple stream cipher wrapper Use new and apply (or apply_copy) to XOR the keystream on the plaintext or ciphertext. Currently this instance is using ChaCha20.

Implementations

impl SimpleStreamCipher

pub const KEY_SIZE: usize = 32usize

Size of the secret key

pub const IV_SIZE: usize = 12usize

Size of the initialization vector

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

Create new instance of the stream cipher initialized with the given secret key and IV.

pub fn set_block_counter(&mut self, counter: u32)

Seeks the keystream to the given block position

pub fn apply(&mut self, data: &mut [u8])

Apply keystream to the given data in-place.

pub fn apply_copy(&mut self, data: &[u8]) -> Box<[u8]>

Creates copy of the given data and applies the keystream to it.

Trait Implementations

impl Drop for SimpleStreamCipher

fn drop(&mut self)

Executes the destructor for this type.