[Zenith] 2 Incorrect random number generation in Testing #59
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removed g2 msm code because it is not used. |
AaronFeickert
requested changes
Jan 5, 2026
g16ckt/src/gadgets/bn254/g1.rs
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| pub fn rnd_g1(rng: &mut impl Rng) -> ark_bn254::G1Projective { | ||
| ark_bn254::G1Projective::default() * rnd_fr(rng) | ||
| ark_bn254::G1Projective::rand(rng) * rnd_fr(rng) |
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This works, but is overkill for test purposes. A simpler approach is either:
- Generate a random point using
G1Projective::randand return it directly - Multiply the default
G1Projectivegenerator by a random scalar produced usingrand_frand return the result
Note that the former is (likely) secure even outside of a test environment. The latter is not.
g16ckt/src/gadgets/bn254/g2.rs
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| pub fn rnd_g2(rng: &mut impl Rng) -> ark_bn254::G2Projective { | ||
| ark_bn254::G2Projective::default() * rnd_fr(rng) | ||
| ark_bn254::G2Projective::rand(rng) * rnd_fr(rng) |
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See the corresponding comment for rnd_g1, which applies here as well.
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Fixes #19