Struct curve25519_dalek::edwards::CompressedEdwardsY [−][src]
In “Edwards y” / “Ed25519” format, the curve point \((x,y)\) is determined by the \(y\)-coordinate and the sign of \(x\).
The first 255 bits of a CompressedEdwardsY
represent the
\(y\)-coordinate. The high bit of the 32nd byte gives the sign of \(x\).
Implementations
impl CompressedEdwardsY
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pub fn as_bytes(&self) -> &[u8; 32]
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View this CompressedEdwardsY
as an array of bytes.
pub fn to_bytes(&self) -> [u8; 32]
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Copy this CompressedEdwardsY
to an array of bytes.
pub fn decompress(&self) -> Option<EdwardsPoint>
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Attempt to decompress to an EdwardsPoint
.
Returns None
if the input is not the \(y\)-coordinate of a
curve point.
impl CompressedEdwardsY
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pub fn from_slice(bytes: &[u8]) -> CompressedEdwardsY
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Construct a CompressedEdwardsY
from a slice of bytes.
Panics
If the input bytes
slice does not have a length of 32.
Trait Implementations
impl Clone for CompressedEdwardsY
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impl ConstantTimeEq for CompressedEdwardsY
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impl Copy for CompressedEdwardsY
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impl Debug for CompressedEdwardsY
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impl Default for CompressedEdwardsY
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impl Eq for CompressedEdwardsY
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impl Hash for CompressedEdwardsY
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impl Identity for CompressedEdwardsY
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impl PartialEq<CompressedEdwardsY> for CompressedEdwardsY
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impl StructuralEq for CompressedEdwardsY
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impl StructuralPartialEq for CompressedEdwardsY
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Auto Trait Implementations
impl RefUnwindSafe for CompressedEdwardsY
impl Send for CompressedEdwardsY
impl Sync for CompressedEdwardsY
impl Unpin for CompressedEdwardsY
impl UnwindSafe for CompressedEdwardsY
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> IsIdentity for T where
T: ConstantTimeEq + Identity,
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T: ConstantTimeEq + Identity,
impl<T> Same<T> for T
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type Output = T
Should always be Self
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,