Struct k256::AffinePoint

source · [−]

pub struct AffinePoint { /* private fields */ }

This is supported on crate feature arithmetic only.

Expand description

secp256k1 curve point expressed in affine coordinates.

`serde` support

When the serde feature of this crate is enabled, the Serialize and Deserialize traits are impl’d for this type.

The serialization uses the SEC1 Elliptic-Curve-Point-to-Octet-String encoding, serialized as binary.

When serialized with a text-based format, the SEC1 representation is subsequently hex encoded.

Implementations

source

impl AffinePoint

source

pub const IDENTITY: Self

Additive identity of the group: the point at infinity.

source

pub const GENERATOR: Self

Base point of secp256k1.

Gₓ = 79be667e f9dcbbac 55a06295 ce870b07 029bfcdb 2dce28d9 59f2815b 16f81798
Gᵧ = 483ada77 26a3c465 5da4fbfc 0e1108a8 fd17b448 a6855419 9c47d08f fb10d4b8

Trait Implementations

source

impl Add<&'_ AffinePoint> for &ProjectivePoint

type Output = ProjectivePoint

The resulting type after applying the + operator.

source

fn add(self, other: &AffinePoint) -> ProjectivePoint

Performs the + operation. Read more

source

impl Add<&'_ AffinePoint> for ProjectivePoint

type Output = ProjectivePoint

The resulting type after applying the + operator.

source

fn add(self, other: &AffinePoint) -> ProjectivePoint

Performs the + operation. Read more

source

impl Add<AffinePoint> for ProjectivePoint

type Output = ProjectivePoint

The resulting type after applying the + operator.

source

fn add(self, other: AffinePoint) -> ProjectivePoint

Performs the + operation. Read more

source

impl AddAssign<&'_ AffinePoint> for ProjectivePoint

source

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

Performs the += operation. Read more

source

impl AddAssign<AffinePoint> for ProjectivePoint

source

fn add_assign(&mut self, rhs: AffinePoint)

Performs the += operation. Read more

source

impl AffineXCoordinate<Secp256k1> for AffinePoint

source

fn x(&self) -> FieldBytes

Get the affine x-coordinate as a serialized field element.

source

impl Clone for AffinePoint

source

fn clone(&self) -> AffinePoint

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

source

impl ConditionallySelectable for AffinePoint

source

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

Select a or b according to choice. Read more

source

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

Conditionally assign other to self, according to choice. Read more

source

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

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

source

impl ConstantTimeEq for AffinePoint

source

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

Determine if two items are equal. Read more

source

impl Debug for AffinePoint

source

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

Formats the value using the given formatter. Read more

source

impl DecompressPoint<Secp256k1> for AffinePoint

source

fn decompress(x_bytes: &FieldBytes, y_is_odd: Choice) -> CtOption<Self>

Attempt to decompress an elliptic curve point.

source

impl Default for AffinePoint

source

fn default() -> Self

Returns the “default value” for a type. Read more

source

impl From<&'_ AffinePoint> for ProjectivePoint

source

fn from(p: &AffinePoint) -> Self

Performs the conversion.

source

impl From<&'_ AffinePoint> for SharedSecret

This is supported on crate feature ecdh only.

source

fn from(affine: &AffinePoint) -> SharedSecret

Performs the conversion.

source

impl From<&'_ AffinePoint> for VerifyingKey

This is supported on crate feature ecdsa-core only.

source

fn from(affine_point: &AffinePoint) -> VerifyingKey

Performs the conversion.

source

impl From<&'_ ProjectivePoint> for AffinePoint

source

fn from(p: &ProjectivePoint) -> AffinePoint

Performs the conversion.

source

impl From<AffinePoint> for EncodedPoint

source

fn from(affine_point: AffinePoint) -> EncodedPoint

Returns the SEC1 compressed encoding of this point.

source

impl From<AffinePoint> for ProjectivePoint

source

fn from(p: AffinePoint) -> Self

Performs the conversion.

source

impl From<ProjectivePoint> for AffinePoint

source

fn from(p: ProjectivePoint) -> AffinePoint

Performs the conversion.

source

impl FromEncodedPoint<Secp256k1> for AffinePoint

source

fn from_encoded_point(encoded_point: &EncodedPoint) -> CtOption<Self>

Attempts to parse the given EncodedPoint as an SEC1-encoded AffinePoint.

Returns

None value if encoded_point is not on the secp256k1 curve.

source

impl GroupEncoding for AffinePoint

type Repr = CompressedPoint

The encoding of group elements. Read more

source

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

Attempts to deserialize a group element from its encoding.

source

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

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

source

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

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

source

impl Mul<&'_ Scalar> for AffinePoint

type Output = ProjectivePoint

The resulting type after applying the * operator.

source

fn mul(self, scalar: &Scalar) -> ProjectivePoint

Performs the * operation. Read more

source

impl Mul<Scalar> for AffinePoint

type Output = ProjectivePoint

The resulting type after applying the * operator.

source

fn mul(self, scalar: Scalar) -> ProjectivePoint

Performs the * operation. Read more

source

impl Neg for AffinePoint

type Output = AffinePoint

The resulting type after applying the - operator.

source

fn neg(self) -> Self::Output

Performs the unary - operation. Read more

source

impl PartialEq<AffinePoint> for AffinePoint

source

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

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

1.0.0 · source

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

This method tests for !=.

source

impl PrimeCurveAffine for AffinePoint

source

fn identity() -> Self

Returns the identity of the group: the point at infinity.

source

fn generator() -> Self

Returns the base point of secp256k1.

source

fn is_identity(&self) -> Choice

Is this point the identity point?

source

fn to_curve(&self) -> ProjectivePoint

Convert to curve representation.

type Scalar = Scalar

type Curve = ProjectivePoint

source

impl Sub<&'_ AffinePoint> for &ProjectivePoint

type Output = ProjectivePoint

The resulting type after applying the - operator.

source

fn sub(self, other: &AffinePoint) -> ProjectivePoint

Performs the - operation. Read more

source

impl Sub<&'_ AffinePoint> for ProjectivePoint

type Output = ProjectivePoint

The resulting type after applying the - operator.

source

fn sub(self, other: &AffinePoint) -> ProjectivePoint

Performs the - operation. Read more

source

impl Sub<AffinePoint> for ProjectivePoint

type Output = ProjectivePoint

The resulting type after applying the - operator.

source

fn sub(self, other: AffinePoint) -> ProjectivePoint

Performs the - operation. Read more

source

impl SubAssign<&'_ AffinePoint> for ProjectivePoint

source

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

Performs the -= operation. Read more

source

impl SubAssign<AffinePoint> for ProjectivePoint

source

fn sub_assign(&mut self, rhs: AffinePoint)

Performs the -= operation. Read more

source

impl ToEncodedPoint<Secp256k1> for AffinePoint

source

fn to_encoded_point(&self, compress: bool) -> EncodedPoint

Serialize this value as a SEC1 EncodedPoint, optionally applying point compression. Read more

source

impl TryFrom<&'_ EncodedPoint<<<Secp256k1 as Curve>::UInt as ArrayEncoding>::ByteSize>> for AffinePoint

type Error = Error

The type returned in the event of a conversion error.

source

fn try_from(point: &EncodedPoint) -> Result<AffinePoint>

Performs the conversion.

source

impl TryFrom<EncodedPoint<<<Secp256k1 as Curve>::UInt as ArrayEncoding>::ByteSize>> for AffinePoint

type Error = Error

The type returned in the event of a conversion error.

source

fn try_from(point: EncodedPoint) -> Result<AffinePoint>

Performs the conversion.

source

impl VerifyPrimitive<Secp256k1> for AffinePoint

This is supported on crate feature ecdsa-core only.

source

fn verify_prehashed(
 &self,
 z: Scalar,
 signature: &Signature
) -> Result<(), Error>

Verify the prehashed message against the provided signature Read more

source

impl Copy for AffinePoint

source

impl DefaultIsZeroes for AffinePoint

source

impl Eq for AffinePoint

Auto Trait Implementations

impl RefUnwindSafe for AffinePoint

impl Send for AffinePoint

impl Sync for AffinePoint

impl Unpin for AffinePoint

impl UnwindSafe for AffinePoint

Blanket Implementations

source

impl<T> Any for T where
T: 'static + ?Sized,

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source

impl<T> Same<T> for T

type Output = T

Should always be Self

source

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

source

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

source

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

source

impl<Z> Zeroize for Z where
Z: DefaultIsZeroes,

source

fn zeroize(&mut self)

Zero out this object from memory using Rust intrinsics which ensure the zeroization operation is not “optimized away” by the compiler. Read more

Struct k256::AffinePoint

Implementations

impl AffinePoint

pub const IDENTITY: Self

pub const GENERATOR: Self

Trait Implementations

impl Add<&'_ AffinePoint> for &ProjectivePoint

type Output = ProjectivePoint

fn add(self, other: &AffinePoint) -> ProjectivePoint

impl Add<&'_ AffinePoint> for ProjectivePoint

type Output = ProjectivePoint

fn add(self, other: &AffinePoint) -> ProjectivePoint

impl Add<AffinePoint> for ProjectivePoint

type Output = ProjectivePoint

fn add(self, other: AffinePoint) -> ProjectivePoint

impl AddAssign<&'_ AffinePoint> for ProjectivePoint

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

impl AddAssign<AffinePoint> for ProjectivePoint

fn add_assign(&mut self, rhs: AffinePoint)

impl AffineXCoordinate<Secp256k1> for AffinePoint

fn x(&self) -> FieldBytes

impl Clone for AffinePoint

fn clone(&self) -> AffinePoint

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

impl ConditionallySelectable for AffinePoint

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

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

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

impl ConstantTimeEq for AffinePoint

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

impl Debug for AffinePoint

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

impl DecompressPoint<Secp256k1> for AffinePoint

fn decompress(x_bytes: &FieldBytes, y_is_odd: Choice) -> CtOption<Self>

impl Default for AffinePoint

fn default() -> Self

impl From<&'_ AffinePoint> for ProjectivePoint

fn from(p: &AffinePoint) -> Self

impl From<&'_ AffinePoint> for SharedSecret

fn from(affine: &AffinePoint) -> SharedSecret

impl From<&'_ AffinePoint> for VerifyingKey

fn from(affine_point: &AffinePoint) -> VerifyingKey

impl From<&'_ ProjectivePoint> for AffinePoint

fn from(p: &ProjectivePoint) -> AffinePoint

impl From<AffinePoint> for EncodedPoint

fn from(affine_point: AffinePoint) -> EncodedPoint

impl From<AffinePoint> for ProjectivePoint

fn from(p: AffinePoint) -> Self

impl From<ProjectivePoint> for AffinePoint

fn from(p: ProjectivePoint) -> AffinePoint

impl FromEncodedPoint<Secp256k1> for AffinePoint

fn from_encoded_point(encoded_point: &EncodedPoint) -> CtOption<Self>

impl GroupEncoding for AffinePoint

type Repr = CompressedPoint

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

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

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

impl Mul<&'_ Scalar> for AffinePoint

type Output = ProjectivePoint

fn mul(self, scalar: &Scalar) -> ProjectivePoint

impl Mul<Scalar> for AffinePoint

type Output = ProjectivePoint

fn mul(self, scalar: Scalar) -> ProjectivePoint

impl Neg for AffinePoint

type Output = AffinePoint

fn neg(self) -> Self::Output

impl PartialEq<AffinePoint> for AffinePoint

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

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

impl PrimeCurveAffine for AffinePoint

fn identity() -> Self

fn generator() -> Self

fn is_identity(&self) -> Choice

fn to_curve(&self) -> ProjectivePoint

type Scalar = Scalar

type Curve = ProjectivePoint

impl Sub<&'_ AffinePoint> for &ProjectivePoint

type Output = ProjectivePoint

fn sub(self, other: &AffinePoint) -> ProjectivePoint

impl Sub<&'_ AffinePoint> for ProjectivePoint

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

fn verify_prehashed(
&self,
z: Scalar,
signature: &Signature
) -> Result<(), Error>

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<Z> Zeroize for Z where
Z: DefaultIsZeroes,