Struct nettle::aead::Ccm

pub struct Ccm<C: Cipher + BlockSizeIs16> { /* fields omitted */ }

Counter with CBC-MAC mode (NIST SP800-38C).

CCM is a generic AEAD mode for block cipher with 128 bit block size.

Implementations

impl<C: Cipher + BlockSizeIs16> Ccm<C>

pub const DIGEST_SIZE: usize

Recommended size of the CCM digest in bytes.

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

Creates a new instance with secret key and public nonce. The instance expect additional data of ad_len bytes, a overall message of msg_len and will produce a digest of digest_len bytes.

Trait Implementations

impl<C: Cipher + BlockSizeIs16> Aead for Ccm<C>

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.