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add serialize_uncompressed to GenericSignature

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Daniel Knopik
2025-01-15 12:49:28 +01:00
parent dfd7ab0373
commit 5dfda40285
3 changed files with 23 additions and 0 deletions
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11
crypto/bls/src/generic_signature.rs
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@@ -14,6 +14,9 @@ use tree_hash::TreeHash;
/// The byte-length of a BLS signature when serialized in compressed form.
pub const SIGNATURE_BYTES_LEN: usize = 96;
/// The byte-length of a BLS signature when serialized in uncompressed form.
pub const SIGNATURE_UNCOMPRESSED_BYTES_LEN: usize = 192;
/// Represents the signature at infinity.
pub const INFINITY_SIGNATURE: [u8; SIGNATURE_BYTES_LEN] = [
0xc0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -31,6 +34,9 @@ pub trait TSignature<GenericPublicKey>: Sized + Clone {
/// Serialize `self` as compressed bytes.
fn serialize(&self) -> [u8; SIGNATURE_BYTES_LEN];
/// Serialize `self` as uncompressed bytes.
fn serialize_uncompressed(&self) -> [u8; SIGNATURE_UNCOMPRESSED_BYTES_LEN];
/// Deserialize `self` from compressed bytes.
fn deserialize(bytes: &[u8]) -> Result<Self, Error>;
@@ -115,6 +121,11 @@ where
}
}
/// Serialize `self` as compressed bytes.
pub fn serialize_uncompressed(&self) -> Option<[u8; SIGNATURE_UNCOMPRESSED_BYTES_LEN]> {
self.point.as_ref().map(|point| point.serialize_uncompressed())
}
/// Deserialize `self` from compressed bytes.
pub fn deserialize(bytes: &[u8]) -> Result<Self, Error> {
let point = if bytes == &NONE_SIGNATURE[..] {