Struct grin_core::pow::Proof

pub struct Proof {
    pub edge_bits: u8,
    pub nonces: Vec<u64>,
}

A Cuck(at)oo Cycle proof of work, consisting of the edge_bits to get the graph size (i.e. the 2-log of the number of edges) and the nonces of the graph solution. While being expressed as u64 for simplicity, nonces a.k.a. edge indices range from 0 to (1 << edge_bits) - 1

The hash of the Proof is the hash of its packed nonces when serializing them at their exact bit size. The resulting bit sequence is padded to be byte-aligned.

Fields

edge_bits: u8

Power of 2 used for the size of the cuckoo graph

nonces: Vec<u64>

The nonces

Methods

impl Proof

pub fn new(in_nonces: Vec<u64>) -> Proof

Builds a proof with provided nonces at default edge_bits

pub fn zero(proof_size: usize) -> Proof

Builds a proof with all bytes zeroed out

pub fn random(proof_size: usize) -> Proof

Builds a proof with random POW data, needed so that tests that ignore POW don't fail due to duplicate hashes

pub fn proof_size(&self) -> usize

Returns the proof size

Trait Implementations

impl Writeable for Proof

fn write<W: Writer>(&self, writer: &mut W) -> Result<(), Error>

Write the data held by this Writeable to the provided writer

impl Readable for Proof

fn read(reader: &mut dyn Reader) -> Result<Proof, Error>

Reads the data necessary to this Readable from the provided reader

impl PartialOrd<Proof> for Proof

fn partial_cmp(&self, other: &Proof) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Proof) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Proof) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Proof) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Proof) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl PartialEq<Proof> for Proof

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Clone for Proof

fn clone(&self) -> Proof

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for Proof

impl Debug for Proof

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

Formats the value using the given formatter.