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pedersen hashes: example of size limit bug

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This commit is contained in:
Kobi Gurkan
2018-08-17 18:34:54 +03:00
committed by Jack Grigg
parent 414d651c9c
commit 15633ad434
3 changed files with 23 additions and 5 deletions
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19
zcash_primitives/src/pedersen_hash.rs
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@@ -18,7 +18,7 @@ impl Personalization {
(0..6).map(|i| (num >> i) & 1 == 1).collect()
}
Personalization::Empty => {
vec![true, true, true, false, false, false]
vec![true, true, true, true, true, true]
}
}
}
@@ -115,13 +115,26 @@ where
#[cfg(test)]
mod test {
use crate::jubjub::*;
use crate::{
jubjub::*,
pedersen_hash::{pedersen_hash, Personalization},
};
use pairing::bls12_381::{Bls12, Fr};
#[test]
fn test_pedersen_hash_generators() {
fn test_pedersen_hash_noncircuit() {
let params = &JubjubBls12::new();
/*
for (i, generator) in params.pedersen_hash_generators().iter().enumerate() {
println!("generator {}, x={}, y={}", i, generator.to_xy().0, generator.to_xy().1)
}
*/
let mut input: Vec<bool> = vec![];
for i in 0..(63*3*4+1) {
input.push(true);
}
let p = pedersen_hash::<Bls12, _>(Personalization::Empty, input, &params).to_xy();
println!("hash = {}, {}", p.0, p.1);
}
}