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Change personalizations to actually match spec this time.

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This commit is contained in:
Sean Bowe
2018-03-19 17:26:28 -06:00
parent 219d03cc11
commit b14c9f8d68
3 changed files with 12 additions and 20 deletions
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src/jubjub/mod.rs
+8 -8
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@@ -224,10 +224,10 @@ impl JubjubBls12 {
let mut pedersen_hash_generators = vec![];
for m in 0..5 {
use byteorder::{WriteBytesExt, BigEndian};
use byteorder::{WriteBytesExt, LittleEndian};
let mut segment_number = [0u8; 4];
(&mut segment_number[0..4]).write_u32::<BigEndian>(m).unwrap();
(&mut segment_number[0..4]).write_u32::<LittleEndian>(m).unwrap();
pedersen_hash_generators.push(
find_group_hash(
@@ -259,22 +259,22 @@ impl JubjubBls12 {
let mut fixed_base_generators = vec![edwards::Point::zero(); FixedGenerators::Max as usize];
fixed_base_generators[FixedGenerators::ProofGenerationKey as usize] =
find_group_hash(b"0", constants::PROOF_GENERATION_KEY_BASE_GENERATOR_PERSONALIZATION, &tmp_params);
find_group_hash(&[], constants::PROOF_GENERATION_KEY_BASE_GENERATOR_PERSONALIZATION, &tmp_params);
fixed_base_generators[FixedGenerators::NoteCommitmentRandomness as usize] =
find_group_hash(b"0", constants::NOTE_COMMITMENT_RANDOMNESS_GENERATOR_PERSONALIZATION, &tmp_params);
find_group_hash(b"r", constants::PEDERSEN_HASH_GENERATORS_PERSONALIZATION, &tmp_params);
fixed_base_generators[FixedGenerators::NullifierPosition as usize] =
find_group_hash(b"0", constants::NULLIFIER_POSITION_IN_TREE_GENERATOR_PERSONALIZATION, &tmp_params);
find_group_hash(&[], constants::NULLIFIER_POSITION_IN_TREE_GENERATOR_PERSONALIZATION, &tmp_params);
fixed_base_generators[FixedGenerators::ValueCommitmentValue as usize] =
find_group_hash(b"0", constants::VALUE_COMMITMENT_VALUE_GENERATOR_PERSONALIZATION, &tmp_params);
find_group_hash(b"v", constants::VALUE_COMMITMENT_GENERATOR_PERSONALIZATION, &tmp_params);
fixed_base_generators[FixedGenerators::ValueCommitmentRandomness as usize] =
find_group_hash(b"0", constants::VALUE_COMMITMENT_RANDOMNESS_GENERATOR_PERSONALIZATION, &tmp_params);
find_group_hash(b"r", constants::VALUE_COMMITMENT_GENERATOR_PERSONALIZATION, &tmp_params);
fixed_base_generators[FixedGenerators::SpendingKeyGenerator as usize] =
find_group_hash(b"0", constants::SPENDING_KEY_GENERATOR_PERSONALIZATION, &tmp_params);
find_group_hash(&[], constants::SPENDING_KEY_GENERATOR_PERSONALIZATION, &tmp_params);
// Check for duplicates, far worse than spec inconsistencies!
for (i, p1) in fixed_base_generators.iter().enumerate() {