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Use zeroize instead of 0-sets

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This commit is contained in:
Luke Parker
2022-08-12 01:14:13 -04:00
parent 42a3d38b48
commit a423c23c1e
4 changed files with 5 additions and 5 deletions
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2
crypto/dleq/src/cross_group/mod.rs
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@@ -232,7 +232,7 @@ where
// Accumulate this bit // Accumulate this bit
these_bits |= bit << (i % bits_per_group); these_bits |= bit << (i % bits_per_group);
bit = 0; bit.zeroize();
if (i % bits_per_group) == (bits_per_group - 1) { if (i % bits_per_group) == (bits_per_group - 1) {
let last = i == (capacity - 1); let last = i == (capacity - 1);

2
crypto/dleq/src/cross_group/scalar.rs
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@@ -40,7 +40,7 @@ pub fn scalar_normalize<F0: PrimeFieldBits + Zeroize, F1: PrimeFieldBits>(
res1 += F0::from(bit.into()); res1 += F0::from(bit.into());
res2 += F1::from(bit.into()); res2 += F1::from(bit.into());
bit = 0; bit.zeroize();
} }
(res1, res2) (res1, res2)

4
crypto/frost/src/curve/mod.rs
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@@ -78,7 +78,7 @@ pub trait Curve: Clone + Copy + PartialEq + Eq + Debug + Zeroize {
seed.extend(repr.as_ref()); seed.extend(repr.as_ref());
for i in repr.as_mut() { for i in repr.as_mut() {
*i = 0; i.zeroize();
} }
let res = Self::hash_to_F(b"nonce", &seed); let res = Self::hash_to_F(b"nonce", &seed);
@@ -112,7 +112,7 @@ pub trait Curve: Clone + Copy + PartialEq + Eq + Debug + Zeroize {
let res = let res =
Option::<Self::F>::from(Self::F::from_repr(encoding)).ok_or(CurveError::InvalidScalar); Option::<Self::F>::from(Self::F::from_repr(encoding)).ok_or(CurveError::InvalidScalar);
for b in encoding.as_mut() { for b in encoding.as_mut() {
*b = 0; b.zeroize();
} }
res res
} }

2
crypto/multiexp/src/lib.rs
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@@ -36,7 +36,7 @@ where
*raw_bit = false; *raw_bit = false;
groupings[p][i / w_usize] |= bit << (i % w_usize); groupings[p][i / w_usize] |= bit << (i % w_usize);
bit = 0; bit.zeroize();
} }
} }