Struct blsttc::G2Affine

pub struct G2Affine(_);

This is an element of $\mathbb{G}_2$ represented in the affine coordinate space. It is ideal to keep elements in this representation to reduce memory usage and improve performance through the use of mixed curve model arithmetic.

Implementations

impl G2Affine

pub fn to_compressed(&self) -> [u8; 96]

Serializes this element into compressed form.

pub fn to_uncompressed(&self) -> [u8; 192]

Serializes this element into uncompressed form.

pub fn from_uncompressed(bytes: &[u8; 192]) -> CtOption<G2Affine>

Attempts to deserialize an uncompressed element.

pub fn from_uncompressed_unchecked(bytes: &[u8; 192]) -> CtOption<G2Affine>

Attempts to deserialize an uncompressed element, not checking if the element is on the curve and not checking if it is in the correct subgroup.

This is dangerous to call unless you trust the bytes you are reading; otherwise, API invariants may be broken. Please consider using from_uncompressed() instead.

pub fn from_compressed(bytes: &[u8; 96]) -> CtOption<G2Affine>

Attempts to deserialize a compressed element.

pub fn from_compressed_unchecked(bytes: &[u8; 96]) -> CtOption<G2Affine>

Attempts to deserialize an uncompressed element, not checking if the element is in the correct subgroup.

This is dangerous to call unless you trust the bytes you are reading; otherwise, API invariants may be broken. Please consider using from_compressed() instead.

pub fn is_torsion_free(&self) -> Choice

Returns true if this point is free of an $h$-torsion component, and so it exists within the $q$-order subgroup $\mathbb{G}_2$. This should always return true unless an “unchecked” API was used.

pub fn is_on_curve(&self) -> Choice

Returns true if this point is on the curve. This should always return true unless an “unchecked” API was used.

pub fn from_raw_unchecked(x: Fp2, y: Fp2, _infinity: bool) -> G2Affine

pub fn x(&self) -> Fp2

Returns the x coordinate.

pub fn y(&self) -> Fp2

Returns the y coordinate.

pub const fn uncompressed_size() -> usize

pub const fn compressed_size() -> usize

Trait Implementations

impl Add<&G2Affine> for &G2Projective

type Output = G2Projective

The resulting type after applying the + operator.

fn add(self, rhs: &G2Affine) -> G2Projective

Performs the + operation.

impl Add<&G2Affine> for G2Projective

type Output = G2Projective

The resulting type after applying the + operator.

fn add(self, rhs: &G2Affine) -> G2Projective

Performs the + operation.

impl Add<&G2Projective> for &G2Affine

type Output = G2Projective

The resulting type after applying the + operator.

fn add(self, rhs: &G2Projective) -> G2Projective

Performs the + operation.

impl Add<&G2Projective> for G2Affine

type Output = G2Projective

The resulting type after applying the + operator.

fn add(self, rhs: &G2Projective) -> G2Projective

Performs the + operation.

impl Add<G2Affine> for &G2Projective

type Output = G2Projective

The resulting type after applying the + operator.

fn add(self, rhs: G2Affine) -> G2Projective

Performs the + operation.

impl Add<G2Affine> for G2Projective

type Output = G2Projective

The resulting type after applying the + operator.

fn add(self, rhs: G2Affine) -> G2Projective

Performs the + operation.

impl Add<G2Projective> for &G2Affine

type Output = G2Projective

The resulting type after applying the + operator.

fn add(self, rhs: G2Projective) -> G2Projective

Performs the + operation.

impl Add<G2Projective> for G2Affine

type Output = G2Projective

The resulting type after applying the + operator.

fn add(self, rhs: G2Projective) -> G2Projective

Performs the + operation.

impl AddAssign<&G2Affine> for G2Projective

fn add_assign(&mut self, rhs: &G2Affine)

Performs the += operation.

impl AddAssign<G2Affine> for G2Projective

fn add_assign(&mut self, rhs: G2Affine)

Performs the += operation.

impl AsMut<blst_p2_affine> for G2Affine

fn as_mut(&mut self) -> &mut blst_p2_affine

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsRef<blst_p2_affine> for G2Affine

fn as_ref(&self) -> &blst_p2_affine

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for G2Affine

fn clone(&self) -> G2Affine

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ConditionallySelectable for G2Affine

fn conditional_select(a: &G2Affine, b: &G2Affine, choice: Choice) -> G2Affine

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 Debug for G2Affine

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

Formats the value using the given formatter.

impl Default for G2Affine

fn default() -> G2Affine

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for G2Affine

fn deserialize<D>(d: D) -> Result<G2Affine, <D as Deserializer<'de>>::Error>where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for G2Affine

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

Formats the value using the given formatter.

impl From<&G2Affine> for G2Projective

fn from(p: &G2Affine) -> G2Projective

Converts to this type from the input type.

impl From<&G2Projective> for G2Affine

fn from(p: &G2Projective) -> G2Affine

Converts to this type from the input type.

impl From<G2Affine> for G2Projective

fn from(p: G2Affine) -> G2Projective

Converts to this type from the input type.

impl From<G2Projective> for G2Affine

fn from(p: G2Projective) -> G2Affine

Converts to this type from the input type.

impl GroupEncoding for G2Affine

type Repr = G2Compressed

The encoding of group elements.

fn from_bytes(bytes: &<G2Affine as GroupEncoding>::Repr) -> CtOption<G2Affine>

Attempts to deserialize a group element from its encoding.

fn from_bytes_unchecked( bytes: &<G2Affine as GroupEncoding>::Repr ) -> CtOption<G2Affine>

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

fn to_bytes(&self) -> <G2Affine as GroupEncoding>::Repr

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

impl Mul<&Scalar> for &G2Affine

type Output = G2Projective

The resulting type after applying the * operator.

fn mul(self, scalar: &Scalar) -> <&G2Affine as Mul<&Scalar>>::Output

Performs the * operation.

impl Mul<&Scalar> for G2Affine

type Output = G2Projective

The resulting type after applying the * operator.

fn mul(self, rhs: &Scalar) -> G2Projective

Performs the * operation.

impl Mul<Scalar> for &G2Affine

type Output = G2Projective

The resulting type after applying the * operator.

fn mul(self, rhs: Scalar) -> G2Projective

Performs the * operation.

impl Mul<Scalar> for G2Affine

type Output = G2Projective

The resulting type after applying the * operator.

fn mul(self, rhs: Scalar) -> G2Projective

Performs the * operation.

impl MulAssign<&Scalar> for G2Affine

fn mul_assign(&mut self, rhs: &Scalar)

Performs the *= operation.

impl MulAssign<Scalar> for G2Affine

fn mul_assign(&mut self, rhs: Scalar)

Performs the *= operation.

impl Neg for &G2Affine

type Output = G2Affine

The resulting type after applying the - operator.

fn neg(self) -> G2Affine

Performs the unary - operation.

impl Neg for G2Affine

type Output = G2Affine

The resulting type after applying the - operator.

fn neg(self) -> G2Affine

Performs the unary - operation.

impl PairingCurveAffine for G2Affine

type Pair = G1Affine

type PairingResult = Gt

fn pairing_with( &self, other: &<G2Affine as PairingCurveAffine>::Pair ) -> <G2Affine as PairingCurveAffine>::PairingResult

Perform a pairing

impl PartialEq<G2Affine> for G2Affine

fn eq(&self, other: &G2Affine) -> 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 PrimeCurveAffine for G2Affine

type Scalar = Scalar

type Curve = G2Projective

fn identity() -> G2Affine

Returns the additive identity.

fn generator() -> G2Affine

Returns a fixed generator of unknown exponent.

fn is_identity(&self) -> Choice

Determines if this point represents the point at infinity; the additive identity.

fn to_curve(&self) -> <G2Affine as PrimeCurveAffine>::Curve

Converts this element to its curve representation.

impl Serialize for G2Affine

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

Serialize this value into the given Serde serializer.

impl Sub<&G2Affine> for &G2Projective

type Output = G2Projective

The resulting type after applying the - operator.

fn sub(self, rhs: &G2Affine) -> G2Projective

Performs the - operation.

impl Sub<&G2Affine> for G2Projective

type Output = G2Projective

The resulting type after applying the - operator.

fn sub(self, rhs: &G2Affine) -> G2Projective

Performs the - operation.

impl Sub<&G2Projective> for &G2Affine

type Output = G2Projective

The resulting type after applying the - operator.

fn sub(self, rhs: &G2Projective) -> G2Projective

Performs the - operation.

impl Sub<&G2Projective> for G2Affine

type Output = G2Projective

The resulting type after applying the - operator.

fn sub(self, rhs: &G2Projective) -> G2Projective

Performs the - operation.

impl Sub<G2Affine> for &G2Projective

type Output = G2Projective

The resulting type after applying the - operator.

fn sub(self, rhs: G2Affine) -> G2Projective

Performs the - operation.

impl Sub<G2Affine> for G2Projective

type Output = G2Projective

The resulting type after applying the - operator.

fn sub(self, rhs: G2Affine) -> G2Projective

Performs the - operation.

impl Sub<G2Projective> for &G2Affine

type Output = G2Projective

The resulting type after applying the - operator.

fn sub(self, rhs: G2Projective) -> G2Projective

Performs the - operation.

impl Sub<G2Projective> for G2Affine

type Output = G2Projective

The resulting type after applying the - operator.

fn sub(self, rhs: G2Projective) -> G2Projective

Performs the - operation.

impl SubAssign<&G2Affine> for G2Projective

fn sub_assign(&mut self, rhs: &G2Affine)

Performs the -= operation.

impl SubAssign<G2Affine> for G2Projective

fn sub_assign(&mut self, rhs: G2Affine)

Performs the -= operation.

impl UncompressedEncoding for G2Affine

type Uncompressed = G2Uncompressed

fn from_uncompressed( bytes: &<G2Affine as UncompressedEncoding>::Uncompressed ) -> CtOption<G2Affine>

Attempts to deserialize an element from its uncompressed encoding.

fn from_uncompressed_unchecked( bytes: &<G2Affine as UncompressedEncoding>::Uncompressed ) -> CtOption<G2Affine>

Attempts to deserialize an uncompressed element, not checking if the element is in the correct subgroup.

fn to_uncompressed(&self) -> <G2Affine as UncompressedEncoding>::Uncompressed

Converts this element into its uncompressed encoding, so long as it’s not the point at infinity.

impl Copy for G2Affine

impl Eq for G2Affine