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Bucket

ark_models_ext::models::short_weierstrass

Struct Bucket 

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pub struct Bucket<P>
where
    P: SWCurveConfig,
{
    pub x: <P as CurveConfig>::BaseField,
    pub y: <P as CurveConfig>::BaseField,
    pub zz: <P as CurveConfig>::BaseField,
    pub zzz: <P as CurveConfig>::BaseField,
}
Expand description

Extended Jacobian coordinates for a point on an elliptic curve in short Weierstrass form, over the base field P::BaseField. This struct implements arithmetic via the extended Jacobian arithmetic outlined here: https://www.hyperelliptic.org/EFD/g1p/auto-shortw-xyzz.html

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§x: <P as CurveConfig>::BaseField

X / ZZ projection of the affine X

§y: <P as CurveConfig>::BaseField

Y / ZZZ projection of the affine Y

§zz: <P as CurveConfig>::BaseField

Bucket multiplicative inverse. Will be 0 only at infinity.

§zzz: <P as CurveConfig>::BaseField

Bucket multiplicative inverse. Will be 0 only at infinity.

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impl<P> Bucket<P>
where P: SWCurveConfig,

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pub const ZERO: Bucket<P>

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pub const fn new_unchecked( x: <P as CurveConfig>::BaseField, y: <P as CurveConfig>::BaseField, zz: <P as CurveConfig>::BaseField, zzz: <P as CurveConfig>::BaseField, ) -> Bucket<P>

Constructs a new group element without checking whether the coordinates specify a point in the subgroup.

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pub fn is_zero(&self) -> bool

Checks whether self.z.is_zero().

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pub fn double_in_place(&mut self)

Trait Implementations§

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impl<'a, P> Add<&'a Bucket<P>> for Bucket<P>
where P: SWCurveConfig,

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type Output = Bucket<P>

The resulting type after applying the + operator.
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fn add(self, other: &'a Bucket<P>) -> Bucket<P>

Performs the + operation. Read more
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impl<'a, P> AddAssign<&'a Bucket<P>> for Bucket<P>
where P: SWCurveConfig,

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fn add_assign(&mut self, other: &'a Bucket<P>)

Performs the += operation. Read more
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impl<'a, P> AddAssign<&'a Bucket<P>> for Projective<P>
where P: SWCurveConfig,

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fn add_assign(&mut self, other: &'a Bucket<P>)

Performs the += operation. Read more
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impl<P, T> AddAssign<T> for Bucket<P>
where P: SWCurveConfig, T: Borrow<Affine<P>>,

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fn add_assign(&mut self, other: T)

Using https://www.hyperelliptic.org/EFD/g1p/auto-shortw-xyzz.html#addition-madd-2008-s

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impl<P> Clone for Bucket<P>
where P: SWCurveConfig, <P as CurveConfig>::BaseField: Copy,

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fn clone(&self) -> Bucket<P>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<P> Copy for Bucket<P>
where P: SWCurveConfig, <P as CurveConfig>::BaseField: Copy,

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impl<P> Debug for Bucket<P>
where P: SWCurveConfig,

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

Formats the value using the given formatter. Read more
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impl<P> Default for Bucket<P>
where P: SWCurveConfig,

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fn default() -> Bucket<P>

Returns the “default value” for a type. Read more
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impl<P> Eq for Bucket<P>
where P: SWCurveConfig,

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impl<P> From<Affine<P>> for Bucket<P>
where P: SWCurveConfig,

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fn from(p: Affine<P>) -> Bucket<P>

Converts to this type from the input type.
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impl<P> From<Bucket<P>> for Affine<P>
where P: SWCurveConfig,

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fn from(p: Bucket<P>) -> Affine<P>

Converts to this type from the input type.
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impl<P> From<Bucket<P>> for Projective<P>
where P: SWCurveConfig,

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fn from(p: Bucket<P>) -> Projective<P>

Converts to this type from the input type.
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impl<P> Hash for Bucket<P>
where P: SWCurveConfig,

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fn hash<H>(&self, state: &mut H)
where H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<P> Neg for Bucket<P>
where P: SWCurveConfig,

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type Output = Bucket<P>

The resulting type after applying the - operator.
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fn neg(self) -> Bucket<P>

Performs the unary - operation. Read more
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impl<P> PartialEq for Bucket<P>
where P: SWCurveConfig,

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fn eq(&self, other: &Bucket<P>) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl<'a, P> SubAssign<&'a Bucket<P>> for Bucket<P>
where P: SWCurveConfig,

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fn sub_assign(&mut self, other: &'a Bucket<P>)

Performs the -= operation. Read more
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impl<P, T> SubAssign<T> for Bucket<P>
where P: SWCurveConfig, T: Borrow<Affine<P>>,

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fn sub_assign(&mut self, other: T)

Performs the -= operation. Read more
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impl<P> Zeroize for Bucket<P>
where P: SWCurveConfig,

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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.

Auto Trait Implementations§

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impl<P> Freeze for Bucket<P>
where <P as CurveConfig>::BaseField: Freeze,

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impl<P> RefUnwindSafe for Bucket<P>
where <P as CurveConfig>::BaseField: RefUnwindSafe,

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impl<P> Send for Bucket<P>

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impl<P> Sync for Bucket<P>

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impl<P> Unpin for Bucket<P>
where <P as CurveConfig>::BaseField: Unpin,

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impl<P> UnsafeUnpin for Bucket<P>
where <P as CurveConfig>::BaseField: UnsafeUnpin,

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impl<P> UnwindSafe for Bucket<P>
where <P as CurveConfig>::BaseField: UnwindSafe,

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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<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. 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, U> Into<U> 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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impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TransmuteInto<U> for T
where U: TransmuteFrom<T>,

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fn transmute_into(self) -> U

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V