Struct risc0_zkp::core::sha_cpu::Impl

pub struct Impl {}

A CPU-based Sha implementation.

Implementations

impl Impl

pub fn hash_pod_stride<T: Pod>(
    &self,
    pods: &[T],
    offset: usize,
    size: usize,
    stride: usize
) -> Box<Digest>

Compute the hash of a slice of plain-old-data using the specified offset and stride. ‘size’ specifies the number of elements to hash.

Trait Implementations

impl Clone for Impl

fn clone(&self) -> Impl

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Impl

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

Formats the value using the given formatter.

impl Sha for Impl

type DigestPtr = Box<Digest, Global>

A pointer to the created digest.

fn hash_bytes(&self, bytes: &[u8]) -> Self::DigestPtr

Generate a SHA from a slice of bytes, padding to block size and adding the SHA trailer.

fn hash_words(&self, words: &[u32]) -> Self::DigestPtr

Generate a SHA from a slice of words, padding to block size and adding the SHA trailer.

fn hash_raw_words(&self, words: &[u32]) -> Self::DigestPtr

Generate a SHA from a slice of words without adding padding or length.

fn hash_raw_pod_slice<T: Pod>(&self, pod: &[T]) -> Self::DigestPtr

Generate a SHA from a slice of anything that can be represented as plain old data. Pads up to the Sha block boundry, but does not add the standard SHA trailer.

fn compress(
    &self,
    orig_state: &Digest,
    block_half1: &Digest,
    block_half2: &Digest
) -> Self::DigestPtr

Execute the sha256 “compress” operation. The block is specified as two half-blocks. Not all implementations provide this.

fn mix(&self, pool: &mut Self::DigestPtr, val: &Digest)

Generate a new digest by mixing two digests together via XOR, and storing into the first digest.

fn hash_pair(&self, a: &Digest, b: &Digest) -> Self::DigestPtr

Generate a SHA from a pair of Digests.