Struct ChaCha20LegacyCore

pub struct ChaCha20LegacyCore(/* private fields */);

The ChaCha20 stream cipher (legacy “djb” construction with 64-bit nonce).

Trait Implementations

impl BlockSizeUser for ChaCha20LegacyCore

type BlockSize = UInt<UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>, B0>

Size of the block in bytes.

fn block_size() -> usize

Return block size in bytes.

impl IvSizeUser for ChaCha20LegacyCore

type IvSize = UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>

Initialization vector size in bytes.

fn iv_size() -> usize

Return IV size in bytes.

impl KeyIvInit for ChaCha20LegacyCore

fn new(key: &Key, iv: &LegacyNonce) -> Self

Create new value from fixed length key and nonce.

fn new_from_slices(key: &[u8], iv: &[u8]) -> Result<Self, InvalidLength>

Create new value from variable length key and nonce.

impl KeySizeUser for ChaCha20LegacyCore

type KeySize = UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>

Key size in bytes.

fn key_size() -> usize

Return key size in bytes.

impl StreamCipherCore for ChaCha20LegacyCore

fn remaining_blocks(&self) -> Option<usize>

Return number of remaining blocks before cipher wraps around.

fn process_with_backend( &mut self, f: impl StreamClosure<BlockSize = Self::BlockSize>, )

Process data using backend provided to the rank-2 closure.

fn write_keystream_block( &mut self, block: &mut GenericArray<u8, Self::BlockSize>, )

Write keystream block.

fn write_keystream_blocks( &mut self, blocks: &mut [GenericArray<u8, Self::BlockSize>], )

Write keystream blocks.

fn apply_keystream_block_inout( &mut self, block: InOut<'_, '_, GenericArray<u8, Self::BlockSize>>, )

Apply keystream block.

fn apply_keystream_blocks( &mut self, blocks: &mut [GenericArray<u8, Self::BlockSize>], )

Apply keystream blocks.

fn apply_keystream_blocks_inout( &mut self, blocks: InOutBuf<'_, '_, GenericArray<u8, Self::BlockSize>>, )

Apply keystream blocks.

fn try_apply_keystream_partial( self, buf: InOutBuf<'_, '_, u8>, ) -> Result<(), StreamCipherError>

Try to apply keystream to data not divided into blocks.

fn apply_keystream_partial(self, buf: InOutBuf<'_, '_, u8>)

Try to apply keystream to data not divided into blocks.

impl StreamCipherSeekCore for ChaCha20LegacyCore

type Counter = u32

Counter type used inside stream cipher.

fn get_block_pos(&self) -> u32

Get current block position.

fn set_block_pos(&mut self, pos: u32)

Set block position.