def _do_test_bip32(self, seed, sequence):
xprv, xpub = bip32_root(bfh(seed), 'standard')
self.assertEqual("m/", sequence[0:2])
path = 'm'
sequence = sequence[2:]
for n in sequence.split('/'):
child_path = path + '/' + n
if n[-1] != "'":
xpub2 = bip32_public_derivation(xpub, path, child_path)
xprv, xpub = bip32_private_derivation(xprv, path, child_path)
if n[-1] != "'":
self.assertEqual(xpub, xpub2)
path = child_path
return xpub, xprv
def _get_key_address(self):
root_xpub = self.wallet.keystore.xpub
xpub = bip32_public_derivation(root_xpub, 'm/', 'm/0/0')
pubk = bh2u(point_to_ser(ser_to_point(bfh(self._xpub_to_gpg_pub(xpub))), compressed=True))
addr = pubkey_to_address('p2pkh', pubk)
return addr
#!./venv/bin/python
from electrum import bitcoin
import sys
lines = [x.strip() for x in sys.stdin.readlines()]
if len(lines) != 1:
print("wrong input")
sys.exit(1)
index = int(sys.argv[1])
xpub = bitcoin.bip32_public_derivation(lines[0], "", str(index))
print(xpub)