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sapling-crypto
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Merge pull request #63 from ebfull/gh 

First block of GH invocation using random beacon output
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ebfull 2018-03-28 16:05:20 -06:00 committed by GitHub
parent 470c9572eb 9f24b68b3a
commit 1026e92194
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 9 additions and 6 deletions
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9
examples/bench.rs
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@ -19,7 +19,7 @@ use sapling_crypto::primitives::{
}; };
use bellman::groth16::*; use bellman::groth16::*;
use rand::{XorShiftRng, SeedableRng, Rng}; use rand::{XorShiftRng, SeedableRng, Rng};
use pairing::bls12_381::Bls12; use pairing::bls12_381::{Bls12, Fr};
const TREE_DEPTH: usize = 32; const TREE_DEPTH: usize = 32;
@ -36,7 +36,8 @@ fn main() {
payment_address: None, payment_address: None,
commitment_randomness: None, commitment_randomness: None,
ar: None, ar: None,
auth_path: vec![None; TREE_DEPTH] auth_path: vec![None; TREE_DEPTH],
anchor: None
}, },
rng rng
).unwrap(); ).unwrap();
@ -78,6 +79,7 @@ fn main() {
let commitment_randomness: fs::Fs = rng.gen(); let commitment_randomness: fs::Fs = rng.gen();
let auth_path = vec![Some((rng.gen(), rng.gen())); TREE_DEPTH]; let auth_path = vec![Some((rng.gen(), rng.gen())); TREE_DEPTH];
let ar: fs::Fs = rng.gen(); let ar: fs::Fs = rng.gen();
let anchor: Fr = rng.gen();
let start = Instant::now(); let start = Instant::now();
let _ = create_random_proof(Spend { let _ = create_random_proof(Spend {
@ -87,7 +89,8 @@ fn main() {
payment_address: Some(payment_address), payment_address: Some(payment_address),
commitment_randomness: Some(commitment_randomness), commitment_randomness: Some(commitment_randomness),
ar: Some(ar), ar: Some(ar),
auth_path: auth_path auth_path: auth_path,
anchor: Some(anchor)
}, &groth_params, rng).unwrap(); }, &groth_params, rng).unwrap();
total_time += start.elapsed(); total_time += start.elapsed();
} }

4
src/circuit/sapling/mod.rs
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@ -718,7 +718,7 @@ fn test_input_circuit_with_bls12_381() {
assert!(cs.is_satisfied()); assert!(cs.is_satisfied());
assert_eq!(cs.num_constraints(), 98777); assert_eq!(cs.num_constraints(), 98777);
assert_eq!(cs.hash(), "aedc6d7646e8e019db327bf256c322e54bc72aa9ac4e86943899557eb96507f3"); assert_eq!(cs.hash(), "499305e409599a3e4fe0a885f6adf674e9f49ba4a21e47362356d2a89f15dc1f");
assert_eq!(cs.get("randomization of note commitment/x3/num"), cm); assert_eq!(cs.get("randomization of note commitment/x3/num"), cm);
@ -795,7 +795,7 @@ fn test_output_circuit_with_bls12_381() {
assert!(cs.is_satisfied()); assert!(cs.is_satisfied());
assert_eq!(cs.num_constraints(), 7827); assert_eq!(cs.num_constraints(), 7827);
assert_eq!(cs.hash(), "8db50ff0e14fae19a7d83ef47f6da3a7e3e2644d251e37b387c6408d85df3ae7"); assert_eq!(cs.hash(), "d18e83255220328a688134038ba4f82d5ce67ffe9f97b2ae2678042da0efad43");
let expected_cm = payment_address.create_note( let expected_cm = payment_address.create_note(
value_commitment.value, value_commitment.value,

2
src/constants.rs
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@ -3,7 +3,7 @@
/// the algorithm, for rigidity purposes. /// the algorithm, for rigidity purposes.
/// We deliberately use an ASCII hex string of 32 bytes here. /// We deliberately use an ASCII hex string of 32 bytes here.
pub const GH_FIRST_BLOCK: &'static [u8; 64] pub const GH_FIRST_BLOCK: &'static [u8; 64]
= b"0000000000000000002ffe76b973aabaff1d1557d79acf2c3795809c83caf580"; = b"096b36a5804bfacef1691e173c366a47ff5ba84a44f26ddd7e8d9f79d5b42df0";
// BLAKE2s invocation personalizations // BLAKE2s invocation personalizations
/// BLAKE2s Personalization for CRH^ivk = BLAKE2s(ak | nk) /// BLAKE2s Personalization for CRH^ivk = BLAKE2s(ak | nk)