Trait snow::types::Cipher

pub trait Cipher: Send + Sync {
    fn name(&self) -> &'static str;
    fn set(&mut self, key: &[u8]);
    fn encrypt(
        &self, 
        nonce: u64, 
        authtext: &[u8], 
        plaintext: &[u8], 
        out: &mut [u8]
    ) -> usize;
    fn decrypt(
        &self, 
        nonce: u64, 
        authtext: &[u8], 
        ciphertext: &[u8], 
        out: &mut [u8]
    ) -> Result<usize, ()>;

    fn rekey(&mut self) { ... }
}

Cipher operations

Required methods

fn name(&self) -> &'static str

The string that the Noise spec defines for the primitive

fn set(&mut self, key: &[u8])

Set the key

fn encrypt(
    &self,
    nonce: u64,
    authtext: &[u8],
    plaintext: &[u8],
    out: &mut [u8]
) -> usize

Encrypt (with associated data) a given plaintext.

fn decrypt(
    &self,
    nonce: u64,
    authtext: &[u8],
    ciphertext: &[u8],
    out: &mut [u8]
) -> Result<usize, ()>

Decrypt (with associated data) a given ciphertext.

Provided methods

fn rekey(&mut self)

Rekey according to Section 4.2 of the Noise Specification, with a default implementation guaranteed to be secure for all ciphers.

Implementors