pub mod scalar;
macro_rules! impl_serde_g {
($g:ty, $len:expr) => {
use bitcoin_hashes::hex::{FromHex, ToHex};
use serde::de::Error;
use serde::{Deserialize, Deserializer, Serializer};
pub fn serialize<S: Serializer>(g: &$g, s: S) -> Result<S::Ok, S::Error> {
let bytes = g.to_compressed();
if s.is_human_readable() {
s.serialize_str(&bytes.to_hex().as_ref())
} else {
s.serialize_bytes(&bytes)
}
}
pub fn deserialize<'d, D: Deserializer<'d>>(d: D) -> Result<$g, D::Error> {
let bytes: Vec<u8> = if d.is_human_readable() {
let deser: String = Deserialize::deserialize(d)?;
Vec::<u8>::from_hex(&deser).map_err(serde::de::Error::custom)?
} else {
Deserialize::deserialize(d)?
};
if bytes.len() != $len {
return Err(D::Error::invalid_length(bytes.len(), &"48 bytes"));
}
let mut byte_array = [0u8; $len];
byte_array.copy_from_slice(&bytes);
let g = <$g>::from_compressed(&byte_array);
if g.is_some().into() {
Ok(g.unwrap())
} else {
Err(D::Error::custom(
"Could not decode compressed group element",
))
}
}
};
}
pub mod g1 {
impl_serde_g!(bls12_381::G1Affine, 48);
}
pub mod g2 {
impl_serde_g!(bls12_381::G2Affine, 96);
}