Struct Hashlock 

pub struct Hashlock {
    pub hash: [u8; 32],
    pub preimage: Vec<u8>,
}

A hashlock condition requiring SHA-256 preimage verification.

The condition is satisfied when SHA-256(preimage) == hash.

Example

use sha2::{Digest, Sha256};
use zescrow_core::Condition;

let preimage = b"my-secret-preimage".to_vec();
let hash: [u8; 32] = Sha256::digest(&preimage).into();

let condition = Condition::hashlock(hash, preimage);
assert!(condition.verify().is_ok());

Fields

hash: [u8; 32]

The expected SHA-256 digest of the preimage.

preimage: Vec<u8>

Secret preimage as UTF-8 string.

Implementations

impl Hashlock

pub fn verify(&self) -> Result<(), Error>

Verifies that SHA-256(preimage) == hash using constant-time comparison.

Errors

Returns Error::Mismatch if the computed hash does not match.

Trait Implementations

impl<'__de, __Context> BorrowDecode<'__de, __Context> for Hashlock

fn borrow_decode<__D: BorrowDecoder<'__de, Context = __Context>>( decoder: &mut __D, ) -> Result<Self, DecodeError>

Attempt to decode this type with the given BorrowDecode.

impl Clone for Hashlock

fn clone(&self) -> Hashlock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Hashlock

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

Formats the value using the given formatter.

impl<__Context> Decode<__Context> for Hashlock

fn decode<__D: Decoder<Context = __Context>>( decoder: &mut __D, ) -> Result<Self, DecodeError>

Attempt to decode this type with the given Decode.

impl Encode for Hashlock

fn encode<__E: Encoder>(&self, encoder: &mut __E) -> Result<(), EncodeError>

Encode a given type.

impl PartialEq for Hashlock

fn eq(&self, other: &Hashlock) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Hashlock

impl StructuralPartialEq for Hashlock