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lnbase: add privkey derivation

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This commit is contained in:
ThomasV
2018-04-17 11:37:47 +02:00
parent 6d703db971
commit 6c4c2267f8
2 changed files with 10 additions and 6 deletions
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6
lib/tests/test_lnbase.py
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@@ -4,7 +4,7 @@ import unittest
from lib.util import bh2u, bfh
from lib.lnbase import make_commitment, get_obscured_ctn, Peer, make_offered_htlc, make_received_htlc
from lib.lnbase import secret_to_pubkey, derive_pubkey
from lib.lnbase import secret_to_pubkey, derive_pubkey, derive_privkey
from lib.transaction import Transaction
from lib import bitcoin
import ecdsa.ellipticcurve
@@ -172,7 +172,7 @@ class Test_LNBase(unittest.TestCase):
print(p.find_route_for_payment('a', 'e', 100000))
def test_key_derivation(self):
print('test key derivation')
# BOLT3, Appendix E
base_secret = 0x000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
per_commitment_secret = 0x1f1e1d1c1b1a191817161514131211100f0e0d0c0b0a09080706050403020100
base_point = secret_to_pubkey(base_secret)
@@ -180,3 +180,5 @@ class Test_LNBase(unittest.TestCase):
per_commitment_point = secret_to_pubkey(per_commitment_secret)
localpubkey = derive_pubkey(base_point, per_commitment_point)
self.assertEqual(localpubkey, bfh('0235f2dbfaa89b57ec7b055afe29849ef7ddfeb1cefdb9ebdc43f5494984db29e5'))
localprivkey = derive_privkey(base_secret, per_commitment_point)
self.assertEqual(localprivkey, 0xcbced912d3b21bf196a766651e436aff192362621ce317704ea2f75d87e7be0f)