Struct ctr::Ctr128

pub struct Ctr128<C> where
    C: BlockCipher<BlockSize = U16>,
    C::ParBlocks: ArrayLength<GenericArray<u8, U16>>,  { /* fields omitted */ }

CTR mode of operation for 128-bit block ciphers

Methods

impl<C> Ctr128<C> where
    C: BlockCipher<BlockSize = U16>,
    C::ParBlocks: ArrayLength<GenericArray<u8, U16>>, 

pub fn from_cipher(cipher: C, nonce: &GenericArray<u8, Self::NonceSize>) -> Self

Create new CTR mode instance using initialized block cipher.

Trait Implementations

impl<C> Debug for Ctr128<C> where
    C: BlockCipher<BlockSize = U16>,
    C::ParBlocks: ArrayLength<GenericArray<u8, U16>>, 

fn fmt(&self, f: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl<C> NewStreamCipher for Ctr128<C> where
    C: BlockCipher<BlockSize = U16>,
    C::ParBlocks: ArrayLength<GenericArray<u8, U16>>, 

type KeySize = C::KeySize

Key size in bytes

type NonceSize = C::BlockSize

Nonce size in bytes

fn new(
    key: &GenericArray<u8, Self::KeySize>,
    nonce: &GenericArray<u8, Self::NonceSize>
) -> Self

Create new stream cipher instance from variable length key and nonce.

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

Create new stream cipher instance from variable length key and nonce.

impl<C> SyncStreamCipher for Ctr128<C> where
    C: BlockCipher<BlockSize = U16>,
    C::ParBlocks: ArrayLength<GenericArray<u8, U16>>, 

fn try_apply_keystream(&mut self, data: &mut [u8]) -> Result<(), LoopError>

Apply keystream to the data, but return an error if end of a keystream will be reached.

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

Apply keystream to the data.

impl<C> SyncStreamCipherSeek for Ctr128<C> where
    C: BlockCipher<BlockSize = U16>,
    C::ParBlocks: ArrayLength<GenericArray<u8, U16>>, 

fn current_pos(&self) -> u64

Return current position of a keystream in bytes from the beginning.

fn seek(&mut self, pos: u64)

Seek keystream to the given pos in bytes.