Struct Cipher 

pub(crate) struct Cipher<C>
where
    C: StreamCipher + StreamCipherSeek,
{
    cipher: C,
    mac: Poly1305,
}

ChaCha20Poly1305 instantiated with a particular nonce

Fields

cipher: C

mac: Poly1305

Implementations

impl<C> Cipher<C>

where C: StreamCipher + StreamCipherSeek,

pub(crate) fn new(cipher: C) -> Self

Instantiate the underlying cipher with a particular nonce

pub(crate) fn encrypt_in_place_detached( self, associated_data: &[u8], buffer: &mut [u8], ) -> Result<Tag, Error>

Encrypt the given message in-place, returning the authentication tag

pub(crate) fn decrypt_in_place_detached( self, associated_data: &[u8], buffer: &mut [u8], tag: &Tag, ) -> Result<(), Error>

Decrypt the given message, first authenticating ciphertext integrity and returning an error if it’s been tampered with.

fn authenticate_lengths( &mut self, associated_data: &[u8], buffer: &[u8], ) -> Result<(), Error>

Authenticate the lengths of the associated data and message