Struct AffinePoint

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pub struct AffinePoint {
    pub x: Fp5,
    pub u: Fp5,
}

Expand description

A point on the curve in affine (x, u) coordinates. Used as window entries in scalar multiplication; the affine form skips the Z and T denominators.

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§x: Fp5

Affine x coordinate.

§u: Fp5

Affine u coordinate (u = x / y).

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impl AffinePoint

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pub const NEUTRAL: Self

Affine encoding of the neutral element N = (0, 0).

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pub fn to_point(self) -> Point

Lift to fractional (X, Z, U, T) coordinates with Z = T = 1.

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pub fn set_neg(&mut self)

Negate the point in place by negating the u coordinate.

Trait Implementations§

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impl Clone for AffinePoint

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fn clone(&self) -> AffinePoint

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Copy for AffinePoint

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impl Debug for AffinePoint

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

Formats the value using the given formatter. Read more

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impl Neg for AffinePoint

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type Output = AffinePoint

The resulting type after applying the - operator.

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fn neg(self) -> Self

Performs the unary - operation. Read more

Auto Trait Implementations§

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impl UnwindSafe for AffinePoint

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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