Struct AesHash

pub struct AesHash { /* private fields */ }

AES accelerated hashing of Blocks.

Implementations

impl AesHash

pub fn new(key: &Key<Aes128>) -> Self

Create a new AesHash with the given key.

pub fn cr_hash_block(&self, x: Block) -> Block

Compute the correlation robust hash of a block.

Warning: only secure in semi-honest setting!

See https://eprint.iacr.org/2019/074 for details.

pub fn cr_hash_blocks<const N: usize>(&self, x: &[Block; N]) -> [Block; N]

where [Block; N]: Pod, [Block; N]: Pod,

Compute the correlation robust hashes of multiple blocks.

Warning: only secure in semi-honest setting! See https://eprint.iacr.org/2019/074 for details.

pub fn cr_hash_blocks_b2b<const N: usize>( &self, inp: &[Block; N], out: &mut [Block], )

where [Block; N]: Pod, [Block; N]: Pod,

Compute the correlation robust hashes of multiple blocks.

Warning: only secure in semi-honest setting! See https://eprint.iacr.org/2019/074 for details.

Panics

If N != out.len()

pub fn cr_hash_slice_mut(&self, x: &mut [Block])

Correlation robust hash of a slice of blocks.

Warning: only secure in semi-honest setting! See https://eprint.iacr.org/2019/074 for details.

In most cases, this method will be the most performant, as it can make use of AES instruction level parallelism.

pub fn tccr_hash_slice_mut( &self, x: &mut [Block], tweak_fn: impl FnMut(usize) -> Block, )

Tweakable circular correlation robust hash function.

See https://eprint.iacr.org/2019/074 for details. This is the TMMO function.