def test_blind():
tests = [
('02eec7245d6b7d2ccb30380bfbe2a3648cd7a942653f5aa340edcea1f283686619',
'53eb63ea8a3fec3b3cd433b85cd62a4b145e1dda09391b348c4e1cd36a03ea66',
'2ec2e5da605776054187180343287683aa6a51b4b1c04d6dd49c45d8cffb3c36'),
('028f9438bfbf7feac2e108d677e3a82da596be706cc1cf342b75c7b7e22bf4e6e2',
'a6519e98832a0b179f62123b3567c106db99ee37bef036e783263602f3488fae',
'bf66c28bc22e598cfd574a1931a2bafbca09163df2261e6d0056b2610dab938f'),
('03bfd8225241ea71cd0843db7709f4c222f62ff2d4516fd38b39914ab6b83e0da0',
'3a6b412548762f0dbccce5c7ae7bb8147d1caf9b5471c34120b30bc9c04891cc',
'a1f2dadd184eb1627049673f18c6325814384facdee5bfd935d9cb031a1698a5'),
('031dde6926381289671300239ea8e57ffaf9bebd05b9a5b95beaf07af05cd43595',
'21e13c2d7cfe7e18836df50872466117a295783ab8aab0e7ecc8c725503ad02d',
'7cfe0b699f35525029ae0fa437c69d0f20f7ed4e3916133f9cacbb13c82ff262'),
('03a214ebd875aab6ddfd77f22c5e7311d7f77f17a169e599f157bbcdae8bf071f4',
'b5756b9b542727dbafc6765a49488b023a725d631af688fc031217e90770c328',
'c96e00dddaf57e7edcd4fb5954be5b65b09f17cb6d20651b4e90315be5779205'),
]
for pubkey, sharedsecret, expected in tests:
expected = onion.Secret(bytes.fromhex(expected))
pubkey = onion.PublicKey(bytes.fromhex(pubkey))
sharedsecret = onion.Secret(bytes.fromhex(sharedsecret))
res = onion.blind(pubkey, sharedsecret)
assert (res == expected)
def test_generate_keyset():
secret = onion.Secret(
bytes.fromhex(
'53eb63ea8a3fec3b3cd433b85cd62a4b145e1dda09391b348c4e1cd36a03ea66')
)
keys = onion.generate_keyset(secret)
expected = onion.KeySet(
rho=bytes.fromhex(
'ce496ec94def95aadd4bec15cdb41a740c9f2b62347c4917325fcc6fb0453986'
),
mu=bytes.fromhex(
'b57061dc6d0a2b9f261ac410c8b26d64ac5506cbba30267a649c28c179400eba'
),
um=bytes.fromhex(
'3ca76e96fad1a0300928639d203b4369e81254032156c936179077b08091ca49'
),
pad=bytes.fromhex(
'3c348715f933c32b5571e2c9136b17c4da2e8fd13e35b7092deff56650eea958'
),
gamma=bytes.fromhex(
'c5b96917bc536aff7c2d6584bd60cf3b99151ccac18f173133f1fd0bdcae08b5'
),
pi=bytes.fromhex(
'3a70333f46a4fd1b3f72acae87760b147b07fe4923131066906a4044d4f1ddd1'
),
ammag=bytes.fromhex(
'3761ba4d3e726d8abb16cba5950ee976b84937b61b7ad09e741724d7dee12eb5'
),
)
assert (keys == expected)
def sphinx_path_from_test_vector(
filename: str) -> Tuple[onion.SphinxPath, dict]:
"""Loads a sphinx test vector from the repo root.
"""
path = os.path.dirname(__file__)
root = os.path.join(path, '..')
filename = os.path.join(root, filename)
v = json.load(open(filename, 'r'))
session_key = onion.Secret(bytes.fromhex(v['generate']['session_key']))
associated_data = bytes.fromhex(v['generate']['associated_data'])
hops = []
for h in v['generate']['hops']:
payload = bytes.fromhex(h['payload'])
if h['type'] == 'raw' or h['type'] == 'tlv':
b = BytesIO()
onion.varint_encode(len(payload), b)
payload = b.getvalue() + payload
elif h['type'] == 'legacy':
padlen = 32 - len(payload)
payload = b'\x00' + payload + (b'\x00' * padlen)
assert (len(payload) == 33)
pubkey = onion.PublicKey(bytes.fromhex(h['pubkey']))
hops.append(onion.SphinxHop(
pubkey=pubkey,
payload=payload,
))
return onion.SphinxPath(hops=hops,
session_key=session_key,
assocdata=associated_data), v
def test_blind_group_element():
tests = [
('031dde6926381289671300239ea8e57ffaf9bebd05b9a5b95beaf07af05cd43595',
'7cfe0b699f35525029ae0fa437c69d0f20f7ed4e3916133f9cacbb13c82ff262',
'03a214ebd875aab6ddfd77f22c5e7311d7f77f17a169e599f157bbcdae8bf071f4'),
('028f9438bfbf7feac2e108d677e3a82da596be706cc1cf342b75c7b7e22bf4e6e2',
'bf66c28bc22e598cfd574a1931a2bafbca09163df2261e6d0056b2610dab938f',
'03bfd8225241ea71cd0843db7709f4c222f62ff2d4516fd38b39914ab6b83e0da0'),
('03bfd8225241ea71cd0843db7709f4c222f62ff2d4516fd38b39914ab6b83e0da0',
'a1f2dadd184eb1627049673f18c6325814384facdee5bfd935d9cb031a1698a5',
'031dde6926381289671300239ea8e57ffaf9bebd05b9a5b95beaf07af05cd43595'),
('031dde6926381289671300239ea8e57ffaf9bebd05b9a5b95beaf07af05cd43595',
'7cfe0b699f35525029ae0fa437c69d0f20f7ed4e3916133f9cacbb13c82ff262',
'03a214ebd875aab6ddfd77f22c5e7311d7f77f17a169e599f157bbcdae8bf071f4'),
]
for pubkey, blind, expected in tests:
expected = onion.PublicKey(bytes.fromhex(expected))
pubkey = onion.PublicKey(bytes.fromhex(pubkey))
blind = onion.Secret(bytes.fromhex(blind))
res = onion.blind_group_element(pubkey, blind)
assert(res.to_bytes() == expected.to_bytes())