Struct CompressedEdwardsY 

pub struct CompressedEdwardsY(pub [u8; 57]);

Represents a point on the Compressed Twisted Edwards Curve in little endian format where the most significant bit is the sign bit and the remaining 448 bits represent the y-coordinate

Tuple Fields

0: [u8; 57]

Implementations

impl CompressedEdwardsY

pub const GENERATOR: Self

The compressed generator point

pub const IDENTITY: Self

The compressed identity point

pub fn decompress_unchecked(&self) -> CtOption<AffinePoint>

Attempt to decompress to an AffinePoint.

Returns None if the input is not the \(y\)-coordinate of a curve point.

pub fn decompress(&self) -> CtOption<AffinePoint>

Attempt to decompress to an AffinePoint.

Returns None:

• if the input is not the \(y\)-coordinate of a curve point.
• if the input point is not on the curve.
• if the input point has nonzero torsion component.

pub const fn as_bytes(&self) -> &[u8; 57]

View this CompressedEdwardsY as an array of bytes.

pub const fn to_bytes(&self) -> [u8; 57]

Copy this CompressedEdwardsY to an array of bytes.

Trait Implementations

impl AsRef<[u8]> for CompressedEdwardsY

fn as_ref(&self) -> &[u8]

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

impl AsRef<[u8; 57]> for CompressedEdwardsY

fn as_ref(&self) -> &[u8; 57]

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

impl Clone for CompressedEdwardsY

fn clone(&self) -> CompressedEdwardsY

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ConditionallySelectable for CompressedEdwardsY

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

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 ConstantTimeEq for CompressedEdwardsY

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

Determine if two items are equal.

fn ct_ne(&self, other: &Self) -> Choice

Determine if two items are NOT equal.

impl Debug for CompressedEdwardsY

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

Formats the value using the given formatter.

impl Default for CompressedEdwardsY

fn default() -> Self

Returns the “default value” for a type.

impl Display for CompressedEdwardsY

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

Formats the value using the given formatter.

impl From<&CompressedEdwardsY> for [u8; 57]

fn from(value: &CompressedEdwardsY) -> Self

Converts to this type from the input type.

impl From<&CompressedEdwardsY> for Vec<u8>

Available on crate feature alloc only.

fn from(value: &CompressedEdwardsY) -> Self

Converts to this type from the input type.

impl From<[u8; 57]> for CompressedEdwardsY

fn from(point: [u8; 57]) -> Self

Converts to this type from the input type.

impl From<CompressedEdwardsY> for [u8; 57]

fn from(value: CompressedEdwardsY) -> Self

Converts to this type from the input type.

impl From<CompressedEdwardsY> for Vec<u8>

Available on crate feature alloc only.

fn from(value: CompressedEdwardsY) -> Self

Converts to this type from the input type.

impl LowerHex for CompressedEdwardsY

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

Formats the value using the given formatter.

impl PartialEq for CompressedEdwardsY

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<&[u8]> for CompressedEdwardsY

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from(value: &[u8]) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<&Vec<u8>> for CompressedEdwardsY

Available on crate feature alloc only.

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from(value: &Vec<u8>) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Box<[u8]>> for CompressedEdwardsY

Available on crate feature alloc only.

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from(value: Box<[u8]>) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Vec<u8>> for CompressedEdwardsY

Available on crate feature alloc only.

type Error = &'static str

The type returned in the event of a conversion error.

fn try_from(value: Vec<u8>) -> Result<Self, Self::Error>

Performs the conversion.

impl UpperHex for CompressedEdwardsY

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

Formats the value using the given formatter.

impl Zeroize for CompressedEdwardsY

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.

impl Copy for CompressedEdwardsY

impl Eq for CompressedEdwardsY