Struct nettle::aead::Ocb

pub struct Ocb<C, T>where
    C: Cipher + BlockSizeIs16,
    T: Unsigned + IsLessOrEqual<U16, Output = True>,{ /* private fields */ }

Phillip Rogaway’s OCB mode of operation.

The type parameter T denotes the tag length, which must not exceed Ocb::MAX_DIGEST_SIZE.

Implementations

impl<C, T> Ocb<C, T>where C: Cipher + BlockSizeIs16, T: Unsigned + IsLessOrEqual<U16, Output = True>,

pub const MAX_DIGEST_SIZE: usize = 16usize

Maximum size of a OCB digest in bytes.

pub fn with_key_and_nonce(key: &[u8], nonce: &[u8]) -> Result<Self>

Creates a new OCB instance with secret key and public nonce.

Returns an error if OCB mode is not supported by the version of Nettle we are linked against at build time.

Trait Implementations

impl<C, T> Aead for Ocb<C, T>where C: Cipher + BlockSizeIs16, T: Unsigned + IsLessOrEqual<U16, Output = True>,

fn digest_size(&self) -> usize

Length of the digest in bytes.

fn update(&mut self, ad: &[u8])

Adds associated data ad.

fn encrypt(&mut self, dst: &mut [u8], src: &[u8])

Encrypts one block src to dst.

fn decrypt(&mut self, dst: &mut [u8], src: &[u8])

Decrypts one block src to dst.

fn digest(&mut self, digest: &mut [u8])

Produce the digest.