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Support public key literals and tidy up handling of Raw vs PodId (#319)

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* Support public key literals and tidy up handling of Raw vs PodId
This commit is contained in:
Rob Knight 2025-07-01 10:34:35 +02:00 • committed by GitHub
parent 6aa4acac4a
commit b123185ee9
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GPG key ID: B5690EEEBB952194
6 changed files with 184 additions and 32 deletions
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36
src/backends/plonky2/primitives/ec/curve.rs
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@ -5,6 +5,7 @@ use core::ops::{Add, Mul};
use std::{
array, fmt,
ops::{AddAssign, Neg, Sub},
str::FromStr,
sync::LazyLock,
};
@ -121,6 +122,27 @@ impl fmt::Display for Point {
}
}
impl FromStr for Point {
type Err = Error;
fn from_str(s: &str) -> Result<Self, Self::Err> {
let point_bytes = bs58::decode(s)
.into_vec()
.map_err(|e| Error::custom(format!("Base58 decode error: {}", e)))?;
if point_bytes.len() == 80 {
// Non-compressed
Ok(Point {
x: ec_field_from_bytes(&point_bytes[..40])?,
u: ec_field_from_bytes(&point_bytes[40..])?,
})
} else {
// Compressed
Self::from_bytes_into_subgroup(&point_bytes)
}
}
}
impl Serialize for Point {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
@ -137,19 +159,7 @@ impl<'de> Deserialize<'de> for Point {
D: Deserializer<'de>,
{
let point_b58 = String::deserialize(deserializer)?;
let point_bytes: Vec<u8> = bs58::decode(point_b58)
.into_vec()
.map_err(serde::de::Error::custom)?;
if point_bytes.len() == 80 {
// Non-compressed
Ok(Point {
x: ec_field_from_bytes(&point_bytes[..40]).map_err(serde::de::Error::custom)?,
u: ec_field_from_bytes(&point_bytes[40..]).map_err(serde::de::Error::custom)?,
})
} else {
// Compressed
Self::from_bytes_into_subgroup(&point_bytes).map_err(serde::de::Error::custom)
}
Self::from_str(&point_b58).map_err(serde::de::Error::custom)
}
}