lbry-sdk/tests/unit/wallet/test_bip32.py
2020-04-11 17:27:41 -04:00

105 lines
4.7 KiB
Python

from binascii import unhexlify, hexlify
from lbry.testcase import AsyncioTestCase
from lbry.wallet.bip32 import PubKey, PrivateKey, from_extended_key_string
from lbry.wallet import Ledger, Headers
from lbry.db import Database
from tests.unit.wallet.key_fixtures import expected_ids, expected_privkeys, expected_hardened_privkeys
class BIP32Tests(AsyncioTestCase):
def test_pubkey_validation(self):
with self.assertRaisesRegex(TypeError, 'chain code must be raw bytes'):
PubKey(None, None, 1, None, None, None)
with self.assertRaisesRegex(ValueError, 'invalid chain code'):
PubKey(None, None, b'abcd', None, None, None)
with self.assertRaisesRegex(ValueError, 'invalid child number'):
PubKey(None, None, b'abcd'*8, -1, None, None)
with self.assertRaisesRegex(ValueError, 'invalid depth'):
PubKey(None, None, b'abcd'*8, 0, 256, None)
with self.assertRaisesRegex(TypeError, 'pubkey must be raw bytes'):
PubKey(None, None, b'abcd'*8, 0, 255, None)
with self.assertRaisesRegex(ValueError, 'pubkey must be 33 bytes'):
PubKey(None, b'abcd', b'abcd'*8, 0, 255, None)
with self.assertRaisesRegex(ValueError, 'invalid pubkey prefix byte'):
PubKey(
None,
unhexlify('33d1a3dc8155673bc1e2214fa493ccc82d57961b66054af9b6b653ac28eeef3ffe'),
b'abcd'*8, 0, 255, None
)
pubkey = PubKey( # success
None,
unhexlify('03d1a3dc8155673bc1e2214fa493ccc82d57961b66054af9b6b653ac28eeef3ffe'),
b'abcd'*8, 0, 1, None
)
with self.assertRaisesRegex(ValueError, 'invalid BIP32 public key child number'):
pubkey.child(-1)
for i in range(20):
new_key = pubkey.child(i)
self.assertIsInstance(new_key, PubKey)
self.assertEqual(hexlify(new_key.identifier()), expected_ids[i])
async def test_private_key_validation(self):
with self.assertRaisesRegex(TypeError, 'private key must be raw bytes'):
PrivateKey(None, None, b'abcd'*8, 0, 255)
with self.assertRaisesRegex(ValueError, 'private key must be 32 bytes'):
PrivateKey(None, b'abcd', b'abcd'*8, 0, 255)
private_key = PrivateKey(
Ledger({
'db': Database('sqlite:///:memory:'),
'headers': Headers(':memory:'),
}),
unhexlify('2423f3dc6087d9683f73a684935abc0ccd8bc26370588f56653128c6a6f0bf7c'),
b'abcd'*8, 0, 1
)
ec_point = private_key.ec_point()
self.assertEqual(
ec_point[0], 30487144161998778625547553412379759661411261804838752332906558028921886299019
)
self.assertEqual(
ec_point[1], 86198965946979720220333266272536217633917099472454294641561154971209433250106
)
self.assertEqual('bUDcmraBp2zCV3QWmVVeQaEgepbs1b2gC9', private_key.address())
with self.assertRaisesRegex(ValueError, 'invalid BIP32 private key child number'):
private_key.child(-1)
self.assertIsInstance(private_key.child(PrivateKey.HARDENED), PrivateKey)
async def test_private_key_derivation(self):
private_key = PrivateKey(
Ledger({
'db': Database('sqlite:///:memory:'),
'headers': Headers(':memory:'),
}),
unhexlify('2423f3dc6087d9683f73a684935abc0ccd8bc26370588f56653128c6a6f0bf7c'),
b'abcd'*8, 0, 1
)
for i in range(20):
new_privkey = private_key.child(i)
self.assertIsInstance(new_privkey, PrivateKey)
self.assertEqual(hexlify(new_privkey.private_key_bytes), expected_privkeys[i])
for i in range(PrivateKey.HARDENED + 1, private_key.HARDENED + 20):
new_privkey = private_key.child(i)
self.assertIsInstance(new_privkey, PrivateKey)
self.assertEqual(hexlify(new_privkey.private_key_bytes), expected_hardened_privkeys[i - 1 - PrivateKey.HARDENED])
async def test_from_extended_keys(self):
ledger = Ledger({
'db': Database('sqlite:///:memory:'),
'headers': Headers(':memory:'),
})
self.assertIsInstance(
from_extended_key_string(
ledger,
'xprv9s21ZrQH143K2dyhK7SevfRG72bYDRNv25yKPWWm6dqApNxm1Zb1m5gGcBWYfbsPjTr2v5joit8Af2Zp5P'
'6yz3jMbycrLrRMpeAJxR8qDg8',
), PrivateKey
)
self.assertIsInstance(
from_extended_key_string(
ledger,
'xpub661MyMwAqRbcF84AR8yfHoMzf4S2ct6mPJtvBtvNeyN9hBHuZ6uGJszkTSn5fQUCdz3XU17eBzFeAUwV6f'
'iW44g14WF52fYC5J483wqQ5ZP',
), PubKey
)