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The scalar to be multiplied by should be at most num_limbs long (#171)

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Co-authored-by: Pratyush Mishra <pratyushmishra@berkeley.edu>
This commit is contained in:
mmagician
2023-09-11 13:44:41 -06:00
committed by GitHub
parent 7e4b4bf027
commit 8765798eb0
1 changed files with 6 additions and 4 deletions
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10
curve-constraint-tests/src/lib.rs
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@@ -315,12 +315,14 @@ pub mod curves {
} }
assert!(cs.is_satisfied().unwrap()); assert!(cs.is_satisfied().unwrap());
let modulus = <C::ScalarField as PrimeField>::MODULUS.as_ref().to_vec(); let modulus = C::ScalarField::MODULUS.as_ref().to_vec();
let mut max = modulus.clone(); let mut max = modulus.clone();
for limb in &mut max { for limb in &mut max {
*limb = u64::MAX; *limb = u64::MAX;
} }
let num_limbs = max.len();
let modulus_num_bits_mod_64 = <C::ScalarField as PrimeField>::MODULUS_BIT_SIZE % 64; let modulus_num_bits_mod_64 = <C::ScalarField as PrimeField>::MODULUS_BIT_SIZE % 64;
if modulus_num_bits_mod_64 != 0 { if modulus_num_bits_mod_64 != 0 {
*max.last_mut().unwrap() >>= 64 - modulus_num_bits_mod_64; *max.last_mut().unwrap() >>= 64 - modulus_num_bits_mod_64;
@@ -332,10 +334,10 @@ pub mod curves {
.to_vec(), .to_vec(),
vec![u64::rand(&mut rng)], vec![u64::rand(&mut rng)],
(-C::ScalarField::one()).into_bigint().as_ref().to_vec(), (-C::ScalarField::one()).into_bigint().as_ref().to_vec(),
<C::ScalarField as PrimeField>::MODULUS.as_ref().to_vec(), modulus,
max, max,
vec![0; 50], vec![0u64; num_limbs],
vec![1000012341233u64; 36], vec![1000012341233u64; num_limbs],
]; ];
let mut input = vec![]; let mut input = vec![];