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Use sha3 for hashing

This commit is contained in:
Daniel Sanchez Quiros 2024-03-08 10:11:20 +01:00
parent 7921f2c706
commit 0337a12733
2 changed files with 3 additions and 3 deletions
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4
da/encoder.py
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@ -1,7 +1,7 @@
from dataclasses import dataclass from dataclasses import dataclass
from itertools import batched, chain from itertools import batched, chain
from typing import List, Sequence, Tuple from typing import List, Sequence, Tuple
from hashlib import sha256 from hashlib import sha3_256
from eth2spec.eip7594.mainnet import KZGCommitment as Commitment, KZGProof as Proof, BLSFieldElement from eth2spec.eip7594.mainnet import KZGCommitment as Commitment, KZGProof as Proof, BLSFieldElement
@ -120,5 +120,5 @@ class DAEncoder:
def _hash_column_and_commitment(column: Column, commitment: Commitment) -> bytes: def _hash_column_and_commitment(column: Column, commitment: Commitment) -> bytes:
# TODO: Check correctness of bytes to blsfieldelement using modulus over the hash # TODO: Check correctness of bytes to blsfieldelement using modulus over the hash
return ( return (
int.from_bytes(sha256(column.as_bytes() + bytes(commitment)).digest()) % BLS_MODULUS int.from_bytes(sha3_256(column.as_bytes() + bytes(commitment)).digest()) % BLS_MODULUS
).to_bytes(32, byteorder="big") ).to_bytes(32, byteorder="big")

2
da/test_encoder.py
View File

@ -5,7 +5,7 @@ from unittest import TestCase
from eth2spec.deneb.mainnet import bytes_to_bls_field from eth2spec.deneb.mainnet import bytes_to_bls_field
from da import encoder from da import encoder
from da.encoder import DAEncoderParams, Commitment, DAEncoder from da.encoder import DAEncoderParams, DAEncoder
from eth2spec.eip7594.mainnet import BYTES_PER_FIELD_ELEMENT, BLSFieldElement from eth2spec.eip7594.mainnet import BYTES_PER_FIELD_ELEMENT, BLSFieldElement
from da.kzg_rs.common import BLS_MODULUS, ROOTS_OF_UNITY from da.kzg_rs.common import BLS_MODULUS, ROOTS_OF_UNITY