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Merge pull request #198 from isislovecruft/feature/add-compressed-from_slice

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Add constructors for compressed points from slices.
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Henry de Valence 2018-09-26 15:53:31 -07:00 committed by GitHub
commit dc2a895a83
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2 changed files with 28 additions and 0 deletions
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15
src/edwards.rs
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@ -271,6 +271,21 @@ impl Default for CompressedEdwardsY {
}
}
impl CompressedEdwardsY {
/// Construct a `CompressedEdwardsY` from a slice of bytes.
///
/// # Panics
///
/// If the input `bytes` slice does not have a length of 32.
pub fn from_slice(bytes: &[u8]) -> CompressedEdwardsY {
let mut tmp = [0u8; 32];
tmp.copy_from_slice(bytes);
CompressedEdwardsY(tmp)
}
}
impl Identity for EdwardsPoint {
fn identity() -> EdwardsPoint {
EdwardsPoint{ X: FieldElement::zero(),

13
src/ristretto.rs
View file

@ -213,6 +213,19 @@ impl CompressedRistretto {
&self.0
}
/// Construct a `CompressedRistretto` from a slice of bytes.
///
/// # Panics
///
/// If the input `bytes` slice does not have a length of 32.
pub fn from_slice(bytes: &[u8]) -> CompressedRistretto {
let mut tmp = [0u8; 32];
tmp.copy_from_slice(bytes);
CompressedRistretto(tmp)
}
/// Attempt to decompress to an `RistrettoPoint`.
///
/// # Return