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ff: Rework BitIterator to work with both u8 and u64 limb sizes

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This enables BitIterator to be used with both the byte encoding and limb
representation of scalars.
This commit is contained in:
Jack Grigg
2020-03-28 12:02:32 +13:00
parent fd79de5408
commit 232f0a50b8
11 changed files with 80 additions and 36 deletions
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4
zcash_proofs/src/circuit/ecc.rs
View File

@@ -769,7 +769,7 @@ mod test {
let q = p.mul(s, params);
let (x1, y1) = q.to_xy();
let mut s_bits = BitIterator::new(s.into_repr()).collect::<Vec<_>>();
let mut s_bits = BitIterator::<u64, _>::new(s.into_repr()).collect::<Vec<_>>();
s_bits.reverse();
s_bits.truncate(Fs::NUM_BITS as usize);
@@ -822,7 +822,7 @@ mod test {
y: num_y0,
};
let mut s_bits = BitIterator::new(s.into_repr()).collect::<Vec<_>>();
let mut s_bits = BitIterator::<u64, _>::new(s.into_repr()).collect::<Vec<_>>();
s_bits.reverse();
s_bits.truncate(Fs::NUM_BITS as usize);

8
zcash_proofs/src/circuit/sapling.rs
View File

@@ -615,8 +615,8 @@ fn test_input_circuit_with_bls12_381() {
::std::mem::swap(&mut lhs, &mut rhs);
}
let mut lhs: Vec<bool> = BitIterator::new(lhs.into_repr()).collect();
let mut rhs: Vec<bool> = BitIterator::new(rhs.into_repr()).collect();
let mut lhs: Vec<bool> = BitIterator::<u64, _>::new(lhs.into_repr()).collect();
let mut rhs: Vec<bool> = BitIterator::<u64, _>::new(rhs.into_repr()).collect();
lhs.reverse();
rhs.reverse();
@@ -799,8 +799,8 @@ fn test_input_circuit_with_bls12_381_external_test_vectors() {
::std::mem::swap(&mut lhs, &mut rhs);
}
let mut lhs: Vec<bool> = BitIterator::new(lhs.into_repr()).collect();
let mut rhs: Vec<bool> = BitIterator::new(rhs.into_repr()).collect();
let mut lhs: Vec<bool> = BitIterator::<u64, _>::new(lhs.into_repr()).collect();
let mut rhs: Vec<bool> = BitIterator::<u64, _>::new(rhs.into_repr()).collect();
lhs.reverse();
rhs.reverse();