[−][src]Struct bls12_381::Scalar

pub struct Scalar(_);

Represents an element of the scalar field $\mathbb{F}_q$ of the BLS12-381 elliptic curve construction.

Implementations

`impl Scalar`[src]

`pub const fn zero() -> Scalar`[src]

Returns zero, the additive identity.

`pub const fn one() -> Scalar`[src]

Returns one, the multiplicative identity.

`pub const fn double(&self) -> Scalar`[src]

Doubles this field element.

`pub fn from_bytes(bytes: &[u8; 32]) -> CtOption<Scalar>`[src]

Attempts to convert a little-endian byte representation of a scalar into a Scalar, failing if the input is not canonical.

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

Converts an element of Scalar into a byte representation in little-endian byte order.

`pub fn from_bytes_wide(bytes: &[u8; 64]) -> Scalar`[src]

Converts a 512-bit little endian integer into a Scalar by reducing by the modulus.

`pub const fn from_raw(val: [u64; 4]) -> Self`[src]

Converts from an integer represented in little endian into its (congruent) Scalar representation.

`pub const fn square(&self) -> Scalar`[src]

Squares this element.

`pub fn sqrt(&self) -> CtOption<Self>`[src]

Computes the square root of this element, if it exists.

`pub fn pow(&self, by: &[u64; 4]) -> Self`[src]

Exponentiates self by by, where by is a little-endian order integer exponent.

`pub fn pow_vartime(&self, by: &[u64; 4]) -> Self`[src]

Exponentiates self by by, where by is a little-endian order integer exponent.

This operation is variable time with respect to the exponent. If the exponent is fixed, this operation is effectively constant time.

`pub fn invert(&self) -> CtOption<Self>`[src]

Computes the multiplicative inverse of this element, failing if the element is zero.

`pub const fn mul(&self, rhs: &Self) -> Self`[src]

Multiplies rhs by self, returning the result.

`pub const fn sub(&self, rhs: &Self) -> Self`[src]

Subtracts rhs from self, returning the result.

`pub const fn add(&self, rhs: &Self) -> Self`[src]

Adds rhs to self, returning the result.

`pub const fn neg(&self) -> Self`[src]

Negates self.

Trait Implementations

`impl<'a, 'b> Add<&'b Scalar> for &'a Scalar`[src]

`type Output = Scalar`

The resulting type after applying the + operator.

`fn add(self, rhs: &'b Scalar) -> Scalar`[src]

`impl<'b> Add<&'b Scalar> for Scalar`[src]

`type Output = Scalar`

The resulting type after applying the + operator.

`fn add(self, rhs: &'b Scalar) -> Scalar`[src]

`impl<'a> Add<Scalar> for &'a Scalar`[src]

`type Output = Scalar`

The resulting type after applying the + operator.

`fn add(self, rhs: Scalar) -> Scalar`[src]

`impl Add<Scalar> for Scalar`[src]

`type Output = Scalar`

The resulting type after applying the + operator.

`fn add(self, rhs: Scalar) -> Scalar`[src]

`impl<'b> AddAssign<&'b Scalar> for Scalar`[src]

`fn add_assign(&mut self, rhs: &'b Scalar)`[src]

`impl AddAssign<Scalar> for Scalar`[src]

`fn add_assign(&mut self, rhs: Scalar)`[src]

`impl Clone for Scalar`[src]

`fn clone(&self) -> Scalar`[src]

`pub fn clone_from(&mut self, source: &Self)`1.0.0[src]

`impl ConditionallySelectable for Scalar`[src]

`fn conditional_select(a: &Self, b: &Self, choice: Choice) -> Self`[src]

`pub fn conditional_assign(&mut self, other: &Self, choice: Choice)`[src]

`pub fn conditional_swap(a: &mut Self, b: &mut Self, choice: Choice)`[src]

`impl ConstantTimeEq for Scalar`[src]

`fn ct_eq(&self, other: &Self) -> Choice`[src]

`impl Copy for Scalar`[src]

`impl Debug for Scalar`[src]

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

`impl Default for Scalar`[src]

`fn default() -> Self`[src]

`impl Display for Scalar`[src]

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

`impl Eq for Scalar`[src]

`impl Field for Scalar`[src]

`fn random(mut rng: impl RngCore) -> Self`[src]

`fn zero() -> Self`[src]

`fn one() -> Self`[src]

`fn is_zero(&self) -> bool`[src]

`#[must_use]fn square(&self) -> Self`[src]

`#[must_use]fn double(&self) -> Self`[src]

`fn invert(&self) -> CtOption<Self>`[src]

`fn sqrt(&self) -> CtOption<Self>`[src]

`#[must_use]pub fn cube(&self) -> Self`[src]

`pub fn pow_vartime<S>(&self, exp: S) -> Self where S: AsRef<[u64]>,` [src]