Struct kctf_pow::KctfPow

pub struct KctfPow {
    pub modulus: Integer,
    pub exponent: Integer,
}

A proof-of-work system for kCTF.

All proof-of-work related methods are on instances of KctfPow in order to initialize and reuse related constants.

Fields

modulus: Integer

The modulus of the proof-of-work. kCTF uses 2**1279 - 1.

exponent: Integer

The exponent of the proof-of-work. kCTF uses (modulus + 1) / 4.

Implementations

impl KctfPow

pub fn new() -> Self

Create a new instance and initialize necessary constants.

pub fn decode_challenge(
    &self,
    chall_string: &str
) -> Result<Challenge<'_>, &'static str>

Decodes a challenge from a string and returns it.

For optimization purposes, the difficulty of the challenge must be able to fit in a u32. This shouldn’t be an issue, since difficulties that can’t fit into a u32 will probably take too long anyways.

pub fn generate_challenge(&self, difficulty: u32) -> Challenge<'_>

Generates a random challenge given a difficulty.

Trait Implementations

impl Clone for KctfPow

fn clone(&self) -> KctfPow

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for KctfPow

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

Formats the value using the given formatter.

impl Default for KctfPow

fn default() -> Self

Returns the “default value” for a type.

impl Ord for KctfPow

fn cmp(&self, other: &KctfPow) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<KctfPow> for KctfPow

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

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

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

This method tests for !=.

impl PartialOrd<KctfPow> for KctfPow

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

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

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

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

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

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

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

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

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

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

impl Eq for KctfPow

impl StructuralEq for KctfPow

impl StructuralPartialEq for KctfPow