diff options
| -rwxr-xr-x | keytree.py | 82 |
1 files changed, 46 insertions, 36 deletions
@@ -37,21 +37,20 @@ import sys basedir = os.path.dirname(os.path.abspath(__file__)) sys.path.insert(0, basedir + "/freezed_deps") +import re import argparse import hashlib import hmac import unicodedata -import bech32 from getpass import getpass + +import bech32 +import mnemonic from ecdsa import SigningKey, VerifyingKey, SECP256k1 from ecdsa.ecdsa import generator_secp256k1 from ecdsa.ellipticcurve import INFINITY from base58 import b58encode from sha3 import keccak_256 -import re -import mnemonic - -err = sys.stderr def sha256(data): @@ -66,7 +65,11 @@ def ripemd160(data): return h.digest() -class BIP32Error(Exception): +class KeytreeError(Exception): + pass + + +class BIP32Error(KeytreeError): pass @@ -146,6 +149,8 @@ def ckd_prv(k_par, c_par, i): return k_i, c_i class BIP32: + path_error = BIP32Error("unsupported BIP32 path format") + def __init__(self, seed, key="Bitcoin seed"): I = hmac.digest(b"Bitcoin seed", seed, 'sha512') I_L, I_R = I[:32], I[32:] @@ -161,7 +166,7 @@ class BIP32: c = self.c for r in tokens[1:]: if not rformat.match(r): - raise BIP32Error("unsupported path format") + raise self.path_error if r[-1] == "'": i = iH(int(r[:-1])) else: @@ -173,7 +178,7 @@ class BIP32: c = self.c for r in tokens[1:]: if not rformat.match(r): - raise BIP32Error("unsupported path format") + raise self.path_error if r[-1] == "'": i = iH(int(r[:-1])) else: @@ -181,7 +186,7 @@ class BIP32: K, c = ckd_pub(K, c, i) return VerifyingKey.from_public_point(K, curve=SECP256k1) else: - raise BIP32Error("unsupported path format") + raise self.path_error def get_eth_addr(pk): pub_key = pk.to_string() @@ -204,7 +209,7 @@ if __name__ == '__main__': parser = argparse.ArgumentParser(description='Derive BIP32 key pairs from BIP39 mnemonic') parser.add_argument('--show-private', action='store_true', default=False, help='also show private keys') parser.add_argument('--custom-words', action='store_true', default=False, help='use an arbitrary word combination as mnemonic') - parser.add_argument('--account-path', default="44'/9000'/0'/0", help='path prefix for key deriving') + parser.add_argument('--account-path', default="44'/9000'/0'/0", help="path prefix for key deriving (e.g. \"0/1'/2\")") parser.add_argument('--gen-mnemonic', action='store_true', default=False, help='generate a mnemonic (instead of taking an input)') parser.add_argument('--lang', type=str, default="english", help='language for mnemonic words') parser.add_argument('--start-idx', type=int, default=0, help='the start index for keys') @@ -213,30 +218,35 @@ if __name__ == '__main__': args = parser.parse_args() - if args.gen_mnemonic: - mgen = mnemonic.Mnemonic(args.lang) - words = mgen.generate(256) - print("KEEP THIS PRIVATE: {}".format(words)) - else: - words = getpass('Enter the mnemonic: ') - if not args.custom_words: - mchecker = mnemonic.Mnemonic(args.lang) - if not mchecker.check(words): - err.write("Invalid mnemonic\n") - sys.exit(1) - - seed = hashlib.pbkdf2_hmac('sha512', unicodedata.normalize('NFKD', words).encode("utf-8"), b"mnemonic", 2048) - gen = BIP32(seed) - if args.start_idx < 0 or args.end_idx < 0: + try: + try: + if args.gen_mnemonic: + mgen = mnemonic.Mnemonic(args.lang) + words = mgen.generate(256) + print("KEEP THIS PRIVATE: {}".format(words)) + else: + words = getpass('Enter the mnemonic: ') + if not args.custom_words: + mchecker = mnemonic.Mnemonic(args.lang) + if not mchecker.check(words): + raise KeytreeError("invalid mnemonic") + except FileNotFoundError: + raise KeytreeError("invalid language") + seed = hashlib.pbkdf2_hmac('sha512', unicodedata.normalize('NFKD', words).encode("utf-8"), b"mnemonic", 2048) + gen = BIP32(seed) + if args.start_idx < 0 or args.end_idx < 0: + raise KeytreeError("invalid start/end index") + for i in range(args.start_idx, args.end_idx): + path = "m/{}/{}".format(args.account_path, i) + priv = gen.derive(path) + pub = priv.get_verifying_key() + cpub = pub.to_string(encoding="compressed") + if args.show_private: + print("{}.priv(raw) {}".format(i, priv.to_string().hex())) + print("{}.priv(BTC) {}".format(i, get_privkey_btc(priv))) + print("{}.addr(AVAX) X-{}".format(i, bech32.bech32_encode('avax', bech32.convertbits(ripemd160(sha256(cpub)), 8, 5)))) + print("{}.addr(BTC) {}".format(i, get_btc_addr(pub))) + print("{}.addr(ETH) {}".format(i, get_eth_addr(pub))) + except KeytreeError as e: + sys.stderr.write("error: {}\n".format(str(e))) sys.exit(1) - for i in range(args.start_idx, args.end_idx): - path = "m/{}/{}".format(args.account_path, i) - priv = gen.derive(path) - pub = priv.get_verifying_key() - cpub = pub.to_string(encoding="compressed") - if args.show_private: - print("{}.priv(raw) {}".format(i, priv.to_string().hex())) - print("{}.priv(BTC) {}".format(i, get_privkey_btc(priv))) - print("{}.addr(AVAX) X-{}".format(i, bech32.bech32_encode('avax', bech32.convertbits(ripemd160(sha256(cpub)), 8, 5)))) - print("{}.addr(BTC) {}".format(i, get_btc_addr(pub))) - print("{}.addr(ETH) {}".format(i, get_eth_addr(pub))) |