Struct polyval::backend::clmul::Polyval

pub struct Polyval {
    h: __m128i,
    y: __m128i,
}

POLYVAL: GHASH-like universal hash over GF(2^128).

Fields

h: __m128i

y: __m128i

Implementations

impl Polyval

pub fn new_with_init_block(h: &Key, init_block: u128) -> Self

Initialize POLYVAL with the given H field element and initial block

impl Polyval

pub(crate) fn finalize(self) -> Tag

Get GHASH output

impl Polyval

unsafe fn mul(&mut self, x: &Block)

Available with target feature pclmulqdq only.

Trait Implementations

impl BlockSizeUser for Polyval

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

Size of the block in bytes.

fn block_size() -> usize

Return block size in bytes.

impl Clone for Polyval

fn clone(&self) -> Polyval

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl KeyInit for Polyval

fn new(h: &Key) -> Self

Initialize POLYVAL with the given H field element

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

Create new value from variable size key.

fn generate_key( rng: impl CryptoRng + RngCore, ) -> GenericArray<u8, Self::KeySize>

Generate random key using the provided CryptoRng.

impl KeySizeUser for Polyval

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

Key size in bytes.

fn key_size() -> usize

Return key size in bytes.

impl ParBlocksSizeUser for Polyval

type ParBlocksSize = UInt<UTerm, B1>

Number of blocks which can be processed in parallel.

impl Reset for Polyval

fn reset(&mut self)

Reset state to its initial value.

impl UhfBackend for Polyval

fn proc_block(&mut self, x: &Block)

Process single block.

fn proc_par_blocks( &mut self, blocks: &GenericArray<GenericArray<u8, Self::BlockSize>, Self::ParBlocksSize>, )

Process several blocks in parallel.

fn blocks_needed_to_align(&self) -> usize

Returns the number of blocks that should be passed to Self::proc_block before Self::proc_par_blocks can be used efficiently. This is always less than Self::ParBlocksSize.