Struct chain_crypto::ec::ristretto255::Scalar

pub struct Scalar(Scalar);

Tuple Fields

0: Scalar

Implementations

impl Scalar

pub const BYTES_LEN: usize = 32usize

pub fn zero() -> Self

additive identity

pub fn one() -> Self

multiplicative identity

pub fn negate(&self) -> Self

pub fn inverse(&self) -> Scalar

multiplicative inverse

pub fn increment(&mut self)

Increment a

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

pub fn as_bytes(&self) -> &[u8]

pub fn from_bytes(slice: &[u8]) -> Option<Self>

Returns none if slice is not canonical

pub fn hash_to_scalar(b: &Blake2b) -> Scalar

pub fn random<R: RngCore + CryptoRng>(rng: &mut R) -> Self

pub fn from_u64(v: u64) -> Self

pub fn power(&self, n: usize) -> Self

Raises x to the power n using binary exponentiation, with (1 to 2)*lg(n) scalar multiplications. Not constant time

pub fn sum<I>(i: I) -> Option<Self>where I: Iterator<Item = Self>,

pub fn exp_iter(&self) -> ScalarExp

Return an iterator of the powers of x.

Trait Implementations

impl<'a, 'b> Add<&'b Scalar> for &'a Scalar

type Output = Scalar

The resulting type after applying the + operator.

fn add(self, other: &'b Scalar) -> Scalar

Performs the + operation.

impl<'b> Add<&'b Scalar> for Scalar

type Output = Scalar

The resulting type after applying the + operator.

fn add(self, other: &'b Scalar) -> Self::Output

Performs the + operation.

impl<'a> Add<Scalar> for &'a Scalar

type Output = Scalar

The resulting type after applying the + operator.

fn add(self, other: Scalar) -> Self::Output

Performs the + operation.

impl Add<Scalar> for Scalar

type Output = Scalar

The resulting type after applying the + operator.

fn add(self, other: Scalar) -> Self::Output

Performs the + operation.

impl Clone for Scalar

fn clone(&self) -> Scalar

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Scalar

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

Formats the value using the given formatter.

impl From<bool> for Scalar

fn from(b: bool) -> Self

Converts to this type from the input type.

impl Hash for Scalar

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'a, 'b> Mul<&'b GroupElement> for &'a Scalar

type Output = GroupElement

The resulting type after applying the * operator.

fn mul(self, other: &'b GroupElement) -> GroupElement

Performs the * operation.

impl<'b> Mul<&'b GroupElement> for Scalar

type Output = GroupElement

The resulting type after applying the * operator.

fn mul(self, other: &'b GroupElement) -> Self::Output

Performs the * operation.

impl<'a, 'b> Mul<&'b Scalar> for &'a GroupElement

type Output = GroupElement

The resulting type after applying the * operator.

fn mul(self, other: &'b Scalar) -> GroupElement

Performs the * operation.

impl<'a, 'b> Mul<&'b Scalar> for &'a Scalar

type Output = Scalar

The resulting type after applying the * operator.

fn mul(self, other: &'b Scalar) -> Scalar

Performs the * operation.

impl<'b> Mul<&'b Scalar> for GroupElement

type Output = GroupElement

The resulting type after applying the * operator.

fn mul(self, other: &'b Scalar) -> Self::Output

Performs the * operation.

impl<'b> Mul<&'b Scalar> for Scalar

type Output = Scalar

The resulting type after applying the * operator.

fn mul(self, other: &'b Scalar) -> Self::Output

Performs the * operation.

impl<'a> Mul<GroupElement> for &'a Scalar

type Output = GroupElement

The resulting type after applying the * operator.

fn mul(self, other: GroupElement) -> Self::Output

Performs the * operation.

impl Mul<GroupElement> for Scalar

type Output = GroupElement

The resulting type after applying the * operator.

fn mul(self, other: GroupElement) -> Self::Output

Performs the * operation.

impl<'a> Mul<Scalar> for &'a GroupElement

type Output = GroupElement

The resulting type after applying the * operator.

fn mul(self, other: Scalar) -> Self::Output

Performs the * operation.

impl<'a> Mul<Scalar> for &'a Scalar

type Output = Scalar

The resulting type after applying the * operator.

fn mul(self, other: Scalar) -> Self::Output

Performs the * operation.

impl Mul<Scalar> for GroupElement

type Output = GroupElement

The resulting type after applying the * operator.

fn mul(self, other: Scalar) -> Self::Output

Performs the * operation.

impl Mul<Scalar> for Scalar

type Output = Scalar

The resulting type after applying the * operator.

fn mul(self, other: Scalar) -> Self::Output

Performs the * operation.

impl PartialEq<Scalar> for Scalar

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

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

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

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

impl<'a, 'b> Sub<&'b Scalar> for &'a Scalar

type Output = Scalar

The resulting type after applying the - operator.

fn sub(self, other: &'b Scalar) -> Scalar

Performs the - operation.

impl<'b> Sub<&'b Scalar> for Scalar

type Output = Scalar

The resulting type after applying the - operator.

fn sub(self, other: &'b Scalar) -> Self::Output

Performs the - operation.

impl<'a> Sub<Scalar> for &'a Scalar

type Output = Scalar

The resulting type after applying the - operator.

fn sub(self, other: Scalar) -> Self::Output

Performs the - operation.

impl Sub<Scalar> for Scalar

type Output = Scalar

The resulting type after applying the - operator.

fn sub(self, other: Scalar) -> Self::Output

Performs the - operation.

impl Eq for Scalar

impl StructuralEq for Scalar

impl StructuralPartialEq for Scalar