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Minor adjustments to tests and documentation

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Sean Bowe 2020-09-13 10:17:00 -06:00
parent 221e9029f7
commit fd350a28a0
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GPG key ID: 95684257D8F8B031
1 changed files with 17 additions and 6 deletions
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23
src/poly/commitment.rs
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@ -70,7 +70,7 @@ impl<'a, C: CurveAffine> MSM<'a, C> {
self.h_scalar = self.h_scalar.map_or(Some(scalar), |a| Some(a + &scalar)); self.h_scalar = self.h_scalar.map_or(Some(scalar), |a| Some(a + &scalar));
} }
/// Scale all scalars in the MSM by a random blinding factor /// Scale all scalars in the MSM by some scaling factor
// TODO: parallelize // TODO: parallelize
pub fn scale(&mut self, factor: C::Scalar) { pub fn scale(&mut self, factor: C::Scalar) {
if let Some(g_scalars) = &mut self.g_scalars { if let Some(g_scalars) = &mut self.g_scalars {
@ -434,19 +434,30 @@ fn test_opening_proof() {
) )
.unwrap(); .unwrap();
// Generate a `new_guard` to populate `msm.g_scalars` // Test guard behavior prior to checking another proof
{
// Test use_challenges()
let msm_challenges = guard.clone().use_challenges();
assert!(msm_challenges.is_zero());
// Test use_g()
let g = guard.compute_g();
let (msm_g, _accumulator) = guard.clone().use_g(g);
}
// Check another proof to populate `msm.g_scalars`
let msm = guard.use_challenges(); let msm = guard.use_challenges();
let new_guard = opening_proof let guard = opening_proof
.verify(&params, msm, &mut transcript_dup.clone(), x, &p, v) .verify(&params, msm, &mut transcript_dup.clone(), x, &p, v)
.unwrap(); .unwrap();
// Test use_challenges() // Test use_challenges()
let msm_challenges = new_guard.clone().use_challenges(); let msm_challenges = guard.clone().use_challenges();
assert!(msm_challenges.is_zero()); assert!(msm_challenges.is_zero());
// Test use_g() // Test use_g()
let g = new_guard.compute_g(); let g = guard.compute_g();
let (msm_g, _accumulator) = new_guard.clone().use_g(g); let (msm_g, _accumulator) = guard.clone().use_g(g);
assert!(msm_g.is_zero()); assert!(msm_g.is_zero());