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integrate with neptune's sponge (#105)

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* integrate with neptune's sponge

* fix clippy warning

* add checks to ensure at most one squeeze

* add checks to ensure at most one squeeze
This commit is contained in:
Srinath Setty
2022-08-11 19:03:44 -07:00
committed by GitHub
parent ddd90f7373
commit 0a7cbf925f
8 changed files with 97 additions and 78 deletions
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11
src/lib.rs
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@@ -26,8 +26,7 @@ use crate::bellperson::{
};
use ::bellperson::{Circuit, ConstraintSystem};
use circuit::{NovaAugmentedCircuit, NovaAugmentedCircuitInputs, NovaAugmentedCircuitParams};
use constants::NUM_HASH_BITS;
use constants::{BN_LIMB_WIDTH, BN_N_LIMBS};
use constants::{BN_LIMB_WIDTH, BN_N_LIMBS, NUM_FE_FOR_HASH, NUM_HASH_BITS};
use core::marker::PhantomData;
use errors::NovaError;
use ff::Field;
@@ -392,14 +391,14 @@ where
// check if the output hashes in R1CS instances point to the right running instances
let (hash_primary, hash_secondary) = {
let mut hasher = <G2 as Group>::RO::new(pp.ro_consts_secondary.clone());
let mut hasher = <G2 as Group>::RO::new(pp.ro_consts_secondary.clone(), NUM_FE_FOR_HASH);
hasher.absorb(scalar_as_base::<G2>(pp.r1cs_shape_secondary.get_digest()));
hasher.absorb(G1::Scalar::from(num_steps as u64));
hasher.absorb(z0_primary);
hasher.absorb(self.zi_primary);
self.r_U_secondary.absorb_in_ro(&mut hasher);
let mut hasher2 = <G1 as Group>::RO::new(pp.ro_consts_primary.clone());
let mut hasher2 = <G1 as Group>::RO::new(pp.ro_consts_primary.clone(), NUM_FE_FOR_HASH);
hasher2.absorb(scalar_as_base::<G1>(pp.r1cs_shape_primary.get_digest()));
hasher2.absorb(G2::Scalar::from(num_steps as u64));
hasher2.absorb(z0_secondary);
@@ -607,14 +606,14 @@ where
// check if the output hashes in R1CS instances point to the right running instances
let (hash_primary, hash_secondary) = {
let mut hasher = <G2 as Group>::RO::new(pp.ro_consts_secondary.clone());
let mut hasher = <G2 as Group>::RO::new(pp.ro_consts_secondary.clone(), NUM_FE_FOR_HASH);
hasher.absorb(scalar_as_base::<G2>(pp.r1cs_shape_secondary.get_digest()));
hasher.absorb(G1::Scalar::from(num_steps as u64));
hasher.absorb(z0_primary);
hasher.absorb(self.zn_primary);
self.r_U_secondary.absorb_in_ro(&mut hasher);
let mut hasher2 = <G1 as Group>::RO::new(pp.ro_consts_primary.clone());
let mut hasher2 = <G1 as Group>::RO::new(pp.ro_consts_primary.clone(), NUM_FE_FOR_HASH);
hasher2.absorb(scalar_as_base::<G1>(pp.r1cs_shape_primary.get_digest()));
hasher2.absorb(G2::Scalar::from(num_steps as u64));
hasher2.absorb(z0_secondary);