Struct Eris

pub struct Eris {
    pub x: Fq,
    pub y: Fq,
    pub z: Fq,
}

Fields

x: Fq

y: Fq

z: Fq

Implementations

impl Eris

pub fn generator() -> Self

Trait Implementations

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

type Output = Eris

The resulting type after applying the + operator.

fn add(self, rhs: &'a Eris) -> Eris

Performs the + operation.

impl<'a, 'b> Add<&'a Eris> for &'b ErisAffine

type Output = Eris

The resulting type after applying the + operator.

fn add(self, rhs: &'a Eris) -> Eris

Performs the + operation.

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

type Output = Eris

The resulting type after applying the + operator.

fn add(self, rhs: &'b Eris) -> Eris

Performs the + operation.

impl<'b> Add<&'b Eris> for ErisAffine

type Output = Eris

The resulting type after applying the + operator.

fn add(self, rhs: &'b Eris) -> Eris

Performs the + operation.

impl<'a, 'b> Add<&'a ErisAffine> for &'b Eris

type Output = Eris

The resulting type after applying the + operator.

fn add(self, rhs: &'a ErisAffine) -> Eris

Performs the + operation.

impl<'b> Add<&'b ErisAffine> for Eris

type Output = Eris

The resulting type after applying the + operator.

fn add(self, rhs: &'b ErisAffine) -> Eris

Performs the + operation.

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

type Output = Eris

The resulting type after applying the + operator.

fn add(self, rhs: Eris) -> Eris

Performs the + operation.

impl<'a> Add<Eris> for &'a ErisAffine

type Output = Eris

The resulting type after applying the + operator.

fn add(self, rhs: Eris) -> Eris

Performs the + operation.

impl Add<Eris> for ErisAffine

type Output = Eris

The resulting type after applying the + operator.

fn add(self, rhs: Eris) -> Eris

Performs the + operation.

impl<'a> Add<ErisAffine> for &'a Eris

type Output = Eris

The resulting type after applying the + operator.

fn add(self, rhs: ErisAffine) -> Eris

Performs the + operation.

impl Add<ErisAffine> for Eris

type Output = Eris

The resulting type after applying the + operator.

fn add(self, rhs: ErisAffine) -> Eris

Performs the + operation.

impl Add for Eris

type Output = Eris

The resulting type after applying the + operator.

fn add(self, rhs: Eris) -> Eris

Performs the + operation.

impl<'b> AddAssign<&'b Eris> for Eris

fn add_assign(&mut self, rhs: &'b Eris)

Performs the += operation.

impl<'b> AddAssign<&'b ErisAffine> for Eris

fn add_assign(&mut self, rhs: &'b ErisAffine)

Performs the += operation.

impl AddAssign<ErisAffine> for Eris

fn add_assign(&mut self, rhs: ErisAffine)

Performs the += operation.

impl AddAssign for Eris

fn add_assign(&mut self, rhs: Eris)

Performs the += operation.

impl Clone for Eris

fn clone(&self) -> Eris

Returns a copy of the value.

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

Performs copy-assignment from source.

impl CofactorCurve for Eris

type Affine = ErisAffine

impl CofactorGroup for Eris

type Subgroup = Eris

The large prime-order subgroup in which cryptographic operations are performed. If Self implements PrimeGroup, then Self::Subgroup may be Self.

fn clear_cofactor(&self) -> Self

Maps self to the prime-order subgroup by multiplying this element by some k-multiple of the cofactor.

fn into_subgroup(self) -> CtOption<Self::Subgroup>

Returns self if it is contained in the prime-order subgroup.

fn is_torsion_free(&self) -> Choice

Determines if this element is “torsion free”, i.e., is contained in the prime-order subgroup.

fn is_small_order(&self) -> Choice

Determines if this element is of small order.

impl ConditionallySelectable for Eris

fn conditional_select(a: &Self, b: &Self, choice: Choice) -> Self

Select a or b according to choice.

fn conditional_assign(&mut self, other: &Self, choice: Choice)

Conditionally assign other to self, according to choice.

fn conditional_swap(a: &mut Self, b: &mut Self, choice: Choice)

Conditionally swap self and other if choice == 1; otherwise, reassign both unto themselves.

impl ConstantTimeEq for Eris

fn ct_eq(&self, other: &Self) -> Choice

Determine if two items are equal.

fn ct_ne(&self, other: &Self) -> Choice

Determine if two items are NOT equal.

impl Curve for Eris

type AffineRepr = ErisAffine

The affine representation for this elliptic curve.

fn batch_normalize(p: &[Self], q: &mut [Self::AffineRepr])

Converts a batch of projective elements into affine elements. This function will panic if p.len() != q.len().

fn to_affine(&self) -> Self::AffineRepr

Converts this element into its affine representation.

impl CurveExt for Eris

const CURVE_ID: &'static str = "eris"

CURVE_ID used for hash-to-curve.

type ScalarExt = Fp

The scalar field of this elliptic curve.

type Base = Fq

The base field over which this elliptic curve is constructed.

type AffineExt = ErisAffine

The affine version of the curve

fn endo(&self) -> Self

Apply the curve endomorphism by multiplying the x-coordinate by an element of multiplicative order 3.

fn jacobian_coordinates(&self) -> (Fq, Fq, Fq)

Return the Jacobian coordinates of this point.

fn hash_to_curve<'a>(domain_prefix: &'a str) -> Box<dyn Fn(&[u8]) -> Self + 'a>

Requests a hasher that accepts messages and returns near-uniformly distributed elements in the group, given domain prefix domain_prefix.

fn is_on_curve(&self) -> Choice

Returns whether or not this element is on the curve; should always be true unless an “unchecked” API was used.

fn b() -> Self::Base

Returns the curve constant b.

fn a() -> Self::Base

Returns the curve constant a.

fn new_jacobian(x: Self::Base, y: Self::Base, z: Self::Base) -> CtOption<Self>

Obtains a point given Jacobian coordinates $X : Y : Z$, failing if the coordinates are not on the curve.

impl Debug for Eris

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

Formats the value using the given formatter.

impl Default for Eris

fn default() -> Eris

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Eris

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl<'a> From<&'a Eris> for ErisAffine

fn from(p: &'a Eris) -> ErisAffine

Converts to this type from the input type.

impl<'a> From<&'a ErisAffine> for Eris

fn from(p: &'a ErisAffine) -> Eris

Converts to this type from the input type.

impl From<Eris> for ErisAffine

fn from(p: Eris) -> ErisAffine

Converts to this type from the input type.

impl From<ErisAffine> for Eris

fn from(p: ErisAffine) -> Eris

Converts to this type from the input type.

impl Group for Eris

type Scalar = Fp

Scalars modulo the order of this group’s scalar field.

fn random(rng: impl RngCore) -> Self

Returns an element chosen uniformly at random from the non-identity elements of this group.

fn double(&self) -> Self

Doubles this element.

fn generator() -> Self

Returns a fixed generator of the prime-order subgroup.

fn identity() -> Self

Returns the additive identity, also known as the “neutral element”.

fn is_identity(&self) -> Choice

Determines if this point is the identity.

impl GroupEncoding for Eris

type Repr = ErisCompressed

The encoding of group elements.

fn from_bytes(bytes: &Self::Repr) -> CtOption<Self>

Attempts to deserialize a group element from its encoding.

fn from_bytes_unchecked(bytes: &Self::Repr) -> CtOption<Self>

Attempts to deserialize a group element, not checking if the element is valid.

fn to_bytes(&self) -> Self::Repr

Converts this element into its byte encoding. This may or may not support encoding the identity.

impl<'a, 'b> Mul<&'b Fp> for &'a Eris

type Output = Eris

The resulting type after applying the * operator.

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

Performs the * operation.

impl<'b> Mul<&'b Fp> for Eris

type Output = Eris

The resulting type after applying the * operator.

fn mul(self, rhs: &'b Fp) -> Eris

Performs the * operation.

impl<'a> Mul<Fp> for &'a Eris

type Output = Eris

The resulting type after applying the * operator.

fn mul(self, rhs: Fp) -> Eris

Performs the * operation.

impl Mul<Fp> for Eris

type Output = Eris

The resulting type after applying the * operator.

fn mul(self, rhs: Fp) -> Eris

Performs the * operation.

impl<'b> MulAssign<&'b Fp> for Eris

fn mul_assign(&mut self, rhs: &'b Fp)

Performs the *= operation.

impl MulAssign<Fp> for Eris

fn mul_assign(&mut self, rhs: Fp)

Performs the *= operation.

impl<'a> Neg for &'a Eris

type Output = Eris

The resulting type after applying the - operator.

fn neg(self) -> Eris

Performs the unary - operation.

impl Neg for Eris

type Output = Eris

The resulting type after applying the - operator.

fn neg(self) -> Eris

Performs the unary - operation.

impl PartialEq for Eris

fn eq(&self, other: &Self) -> 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 PrimeCurve for Eris

type Affine = ErisAffine

impl SerdeObject for Eris

fn from_raw_bytes_unchecked(bytes: &[u8]) -> Self

The purpose of unchecked functions is to read the internal memory representation of a type from bytes as quickly as possible. No sanitization checks are performed to ensure the bytes represent a valid object. As such this function should only be used internally as an extension of machine memory. It should not be used to deserialize externally provided data.

fn from_raw_bytes(bytes: &[u8]) -> Option<Self>

fn to_raw_bytes(&self) -> Vec<u8>

fn read_raw_unchecked<R: Read>(reader: &mut R) -> Self

The purpose of unchecked functions is to read the internal memory representation of a type from disk as quickly as possible. No sanitization checks are performed to ensure the bytes represent a valid object. This function should only be used internally when some machine state cannot be kept in memory (e.g., between runs) and needs to be reloaded as quickly as possible.

fn read_raw<R: Read>(reader: &mut R) -> Result<Self>

fn write_raw<W: Write>(&self, writer: &mut W) -> Result<()>

impl Serialize for Eris

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

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

type Output = Eris

The resulting type after applying the - operator.

fn sub(self, other: &'a Eris) -> Eris

Performs the - operation.

impl<'a, 'b> Sub<&'a Eris> for &'b ErisAffine

type Output = Eris

The resulting type after applying the - operator.

fn sub(self, other: &'a Eris) -> Eris

Performs the - operation.

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

type Output = Eris

The resulting type after applying the - operator.

fn sub(self, rhs: &'b Eris) -> Eris

Performs the - operation.

impl<'b> Sub<&'b Eris> for ErisAffine

type Output = Eris

The resulting type after applying the - operator.

fn sub(self, rhs: &'b Eris) -> Eris

Performs the - operation.

impl<'a, 'b> Sub<&'a ErisAffine> for &'b Eris

type Output = Eris

The resulting type after applying the - operator.

fn sub(self, other: &'a ErisAffine) -> Eris

Performs the - operation.

impl<'b> Sub<&'b ErisAffine> for Eris

type Output = Eris

The resulting type after applying the - operator.

fn sub(self, rhs: &'b ErisAffine) -> Eris

Performs the - operation.

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

type Output = Eris

The resulting type after applying the - operator.

fn sub(self, rhs: Eris) -> Eris

Performs the - operation.

impl<'a> Sub<Eris> for &'a ErisAffine

type Output = Eris

The resulting type after applying the - operator.

fn sub(self, rhs: Eris) -> Eris

Performs the - operation.

impl Sub<Eris> for ErisAffine

type Output = Eris

The resulting type after applying the - operator.

fn sub(self, rhs: Eris) -> Eris

Performs the - operation.

impl<'a> Sub<ErisAffine> for &'a Eris

type Output = Eris

The resulting type after applying the - operator.

fn sub(self, rhs: ErisAffine) -> Eris

Performs the - operation.

impl Sub<ErisAffine> for Eris

type Output = Eris

The resulting type after applying the - operator.

fn sub(self, rhs: ErisAffine) -> Eris

Performs the - operation.

impl Sub for Eris

type Output = Eris

The resulting type after applying the - operator.

fn sub(self, rhs: Eris) -> Eris

Performs the - operation.

impl<'b> SubAssign<&'b Eris> for Eris

fn sub_assign(&mut self, rhs: &'b Eris)

Performs the -= operation.

impl<'b> SubAssign<&'b ErisAffine> for Eris

fn sub_assign(&mut self, rhs: &'b ErisAffine)

Performs the -= operation.

impl SubAssign<ErisAffine> for Eris

fn sub_assign(&mut self, rhs: ErisAffine)

Performs the -= operation.

impl SubAssign for Eris

fn sub_assign(&mut self, rhs: Eris)

Performs the -= operation.

impl<T> Sum<T> for Eris

where T: Borrow<Eris>,

fn sum<I>(iter: I) -> Self

where I: Iterator<Item = T>,

Takes an iterator and generates Self from the elements by “summing up” the items.

impl Copy for Eris

impl Eq for Eris

impl PrimeGroup for Eris