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Implement Debug and Eq for ExpandedSecretKey (#748)

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daxpedda 2025-06-04 16:27:23 +02:00 committed by GitHub
parent 08d7176d58
commit ea6ffc354e
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1 changed files with 23 additions and 0 deletions
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23
ed25519-dalek/src/hazmat.rs
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@ -13,10 +13,13 @@
// defined.
#![allow(dead_code)]
use core::fmt::Debug;
use crate::{InternalError, SignatureError};
use curve25519_dalek::scalar::{clamp_integer, Scalar};
use subtle::{Choice, ConstantTimeEq};
#[cfg(feature = "zeroize")]
use zeroize::{Zeroize, ZeroizeOnDrop};
@ -41,6 +44,26 @@ pub struct ExpandedSecretKey {
pub hash_prefix: [u8; 32],
}
impl Debug for ExpandedSecretKey {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
f.debug_struct("ExpandedSecretKey").finish_non_exhaustive() // avoids printing secrets
}
}
impl ConstantTimeEq for ExpandedSecretKey {
fn ct_eq(&self, other: &Self) -> Choice {
self.scalar.ct_eq(&other.scalar) & self.hash_prefix.ct_eq(&other.hash_prefix)
}
}
impl PartialEq for ExpandedSecretKey {
fn eq(&self, other: &Self) -> bool {
self.ct_eq(other).into()
}
}
impl Eq for ExpandedSecretKey {}
#[cfg(feature = "zeroize")]
impl Drop for ExpandedSecretKey {
fn drop(&mut self) {