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Merge pull request #3513 from asn-d6/testgen_kzg_4844_positive_g1_at_inf 

generators/kzg_4844: Add positive G1_POINT_AT_INFINITY test vectors
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Hsiao-Wei Wang 2023-09-26 19:14:45 +08:00 committed by GitHub
parent 28e3c807e2 0052e68019
commit b04430332e
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1 changed files with 87 additions and 14 deletions
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77
tests/generators/kzg_4844/main.py
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@ -67,6 +67,7 @@ INVALID_G1_POINTS = [G1_INVALID_TOO_FEW_BYTES, G1_INVALID_TOO_MANY_BYTES,
G1_INVALID_P1_NOT_IN_G1, G1_INVALID_P1_NOT_ON_CURVE]
BLOB_ALL_ZEROS = spec.Blob()
BLOB_ALL_TWOS = spec.Blob(b''.join([field_element_bytes(2) for n in range(4096)]))
BLOB_RANDOM_VALID1 = spec.Blob(b''.join([field_element_bytes(pow(2, n + 256, spec.BLS_MODULUS)) for n in range(4096)]))
BLOB_RANDOM_VALID2 = spec.Blob(b''.join([field_element_bytes(pow(3, n + 256, spec.BLS_MODULUS)) for n in range(4096)]))
BLOB_RANDOM_VALID3 = spec.Blob(b''.join([field_element_bytes(pow(5, n + 256, spec.BLS_MODULUS)) for n in range(4096)]))
@ -79,7 +80,7 @@ BLOB_INVALID_CLOSE = spec.Blob(b''.join(
BLOB_INVALID_LENGTH_PLUS_ONE = BLOB_RANDOM_VALID1 + b"\x00"
BLOB_INVALID_LENGTH_MINUS_ONE = BLOB_RANDOM_VALID1[:-1]
VALID_BLOBS = [BLOB_ALL_ZEROS, BLOB_RANDOM_VALID1, BLOB_RANDOM_VALID2,
VALID_BLOBS = [BLOB_ALL_ZEROS, BLOB_ALL_TWOS, BLOB_RANDOM_VALID1, BLOB_RANDOM_VALID2,
BLOB_RANDOM_VALID3, BLOB_ALL_MODULUS_MINUS_ONE, BLOB_ALMOST_ZERO]
INVALID_BLOBS = [BLOB_INVALID, BLOB_INVALID_CLOSE, BLOB_INVALID_LENGTH_PLUS_ONE, BLOB_INVALID_LENGTH_MINUS_ONE]
@ -216,11 +217,14 @@ def case03_verify_kzg_proof():
# Incorrect `G1_POINT_AT_INFINITY` proof
blob = BLOB_RANDOM_VALID1
for z in VALID_FIELD_ELEMENTS:
_, y = spec.compute_kzg_proof(blob, z)
commitment = spec.blob_to_kzg_commitment(blob)
proof = spec.G1_POINT_AT_INFINITY
assert not spec.verify_kzg_proof(commitment, z, y, proof)
yield 'verify_kzg_proof_case_incorrect_proof_point_at_infinity', {
prefix = 'verify_kzg_proof_case_incorrect_proof_point_at_infinity'
identifier = f'{encode_hex(hash(blob))}_{encode_hex(z)}'
yield f'{prefix}_{(hash(bytes(identifier, "utf-8"))[:8]).hex()}', {
'input': {
'commitment': encode_hex(commitment),
'z': encode_hex(z),
@ -230,6 +234,45 @@ def case03_verify_kzg_proof():
'output': False
}
# Correct `G1_POINT_AT_INFINITY` proof for zero poly
blob = BLOB_ALL_ZEROS
for z in VALID_FIELD_ELEMENTS:
_, y = spec.compute_kzg_proof(blob, z)
commitment = spec.blob_to_kzg_commitment(blob)
proof = spec.G1_POINT_AT_INFINITY
assert spec.verify_kzg_proof(commitment, z, y, proof)
prefix = 'verify_kzg_proof_case_correct_proof_point_at_infinity_for_zero_poly'
identifier = f'{encode_hex(hash(blob))}_{encode_hex(z)}'
yield f'{prefix}_{(hash(bytes(identifier, "utf-8"))[:8]).hex()}', {
'input': {
'commitment': encode_hex(commitment),
'z': encode_hex(z),
'y': encode_hex(y),
'proof': encode_hex(proof),
},
'output': True
}
# Correct `G1_POINT_AT_INFINITY` proof for poly of all twos
blob = BLOB_ALL_TWOS
for z in VALID_FIELD_ELEMENTS:
_, y = spec.compute_kzg_proof(blob, z)
commitment = spec.blob_to_kzg_commitment(blob)
proof = spec.G1_POINT_AT_INFINITY
assert spec.verify_kzg_proof(commitment, z, y, proof)
assert y == field_element_bytes(2)
prefix = 'verify_kzg_proof_case_correct_proof_point_at_infinity_for_twos_poly'
identifier = f'{encode_hex(hash(blob))}_{encode_hex(z)}'
yield f'{prefix}_{(hash(bytes(identifier, "utf-8"))[:8]).hex()}', {
'input': {
'commitment': encode_hex(commitment),
'z': encode_hex(z),
'y': encode_hex(y),
'proof': encode_hex(proof),
},
'output': True
}
# Edge case: Invalid commitment
for commitment in INVALID_G1_POINTS:
blob, z = VALID_BLOBS[2], VALID_FIELD_ELEMENTS[1]
@ -384,6 +427,36 @@ def case05_verify_blob_kzg_proof():
'output': False
}
# Correct `G1_POINT_AT_INFINITY` proof and commitment for zero poly
blob = BLOB_ALL_ZEROS
commitment = spec.blob_to_kzg_commitment(blob)
proof = spec.G1_POINT_AT_INFINITY
assert commitment == spec.G1_POINT_AT_INFINITY
assert spec.verify_blob_kzg_proof(blob, commitment, proof)
yield 'verify_blob_kzg_proof_case_correct_proof_point_at_infinity_for_zero_poly', {
'input': {
'blob': encode_hex(blob),
'commitment': encode_hex(commitment),
'proof': encode_hex(proof),
},
'output': True
}
# Correct `G1_POINT_AT_INFINITY` proof for all twos poly
blob = BLOB_ALL_TWOS
commitment = spec.blob_to_kzg_commitment(blob)
proof = spec.G1_POINT_AT_INFINITY
assert commitment != spec.G1_POINT_AT_INFINITY
assert spec.verify_blob_kzg_proof(blob, commitment, proof)
yield 'verify_blob_kzg_proof_case_correct_proof_point_at_infinity_for_twos_poly', {
'input': {
'blob': encode_hex(blob),
'commitment': encode_hex(commitment),
'proof': encode_hex(proof),
},
'output': True
}
# Edge case: Invalid blob
for blob in INVALID_BLOBS:
proof = G1