sp1_lib::ed25519

Struct Ed25519AffinePoint

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#[repr(align(4))]
pub struct Ed25519AffinePoint(pub [u32; 16]);
Expand description

An affine point on the Ed25519 curve.

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§0: [u32; 16]

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impl AffinePoint<N> for Ed25519AffinePoint

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const GENERATOR: [u32; 16] = _

The generator/base point for the Ed25519 curve. Reference: https://datatracker.ietf.org/doc/html/rfc7748#section-4.1

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fn double(&mut self)

In Edwards curves, doubling is the same as adding a point to itself.

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fn new(limbs: [u32; 16]) -> Self

Creates a new AffinePoint from the given limbs.
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fn limbs_ref(&self) -> &[u32; 16]

Returns a reference to the limbs.
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fn limbs_mut(&mut self) -> &mut [u32; 16]

Returns a mutable reference to the limbs. If the point is the infinity point, this will panic.
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fn add_assign(&mut self, other: &Self)

Adds the given AffinePoint to self.
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fn from(x: &[u8], y: &[u8]) -> Self

Creates a new AffinePoint from the given x and y coordinates. Read more
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fn from_le_bytes(bytes: &[u8]) -> Self

Creates a new AffinePoint from the given bytes in little endian.
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fn to_le_bytes(&self) -> Vec<u8>

Creates a new AffinePoint from the given bytes in big endian.
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fn complete_add_assign(&mut self, other: &Self)

Adds the given AffinePoint to self. Can be optionally overridden to use a different implementation of addition in multi-scalar multiplication, which is used in secp256k1 recovery.
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fn mul_assign(&mut self, scalar: &[u32]) -> Result<(), MulAssignError>

Multiplies self by the given scalar.
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fn multi_scalar_multiplication( a_bits_le: &[bool], a: Self, b_bits_le: &[bool], b: Self, ) -> Option<Self>

Performs multi-scalar multiplication (MSM) on slices of bit vectors and points. Note: a_bits_le and b_bits_le should be in little endian order.
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impl Clone for Ed25519AffinePoint

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fn clone(&self) -> Ed25519AffinePoint

Returns a copy 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 Ed25519AffinePoint

Auto Trait Implementations§

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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<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> 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> 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.