Struct CanonicalHasher 

pub struct CanonicalHasher { /* private fields */ }

A canonical, order-stable SHA-256 sealer. Build a preimage from labelled fields, then finalize.

Implementations

impl CanonicalHasher

pub fn new() -> Self

pub fn field(&mut self, label: &str, bytes: &[u8]) -> &mut Self

Absorb a labelled byte field. Both label and value are length-prefixed (little-endian u64) so no two distinct (label, value) sequences can collide by concatenation.

pub fn u64(&mut self, label: &str, v: u64) -> &mut Self

Absorb a labelled u64 (8 bytes little-endian).

pub fn hash32(&mut self, label: &str, h: &[u8; 32]) -> &mut Self

Absorb a labelled 32-byte digest.

pub fn finalize(self) -> [u8; 32]

Finalise to the raw 32-byte digest.

pub fn finalize_hex(self) -> String

Finalise to a 64-char lowercase hex digest.

Trait Implementations

impl Default for CanonicalHasher

fn default() -> Self

Returns the “default value” for a type.