dash/test/functional/test_framework/address.py
2021-08-31 11:16:12 +05:30

65 lines
1.8 KiB
Python

#!/usr/bin/env python3
# Copyright (c) 2016 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
#
# address.py
#
# This file encodes and decodes BASE58 P2PKH and P2SH addresses
#
from .script import hash256, hash160, CScript
from .util import hex_str_to_bytes
chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
def byte_to_base58(b, version):
result = ''
str = b.hex()
str = chr(version).encode('latin-1').hex() + str
checksum = hash256(hex_str_to_bytes(str)).hex()
str += checksum[:8]
value = int('0x'+str,0)
while value > 0:
result = chars[value % 58] + result
value //= 58
while (str[:2] == '00'):
result = chars[0] + result
str = str[2:]
return result
# TODO: def base58_decode
def keyhash_to_p2pkh(hash, main = False):
assert len(hash) == 20
version = 76 if main else 140
return byte_to_base58(hash, version)
def scripthash_to_p2sh(hash, main = False):
assert len(hash) == 20
version = 16 if main else 19
return byte_to_base58(hash, version)
def key_to_p2pkh(key, main = False):
key = check_key(key)
return keyhash_to_p2pkh(hash160(key), main)
def script_to_p2sh(script, main = False):
script = check_script(script)
return scripthash_to_p2sh(hash160(script), main)
def check_key(key):
if (type(key) is str):
key = hex_str_to_bytes(key) # Assuming this is hex string
if (type(key) is bytes and (len(key) == 33 or len(key) == 65)):
return key
assert False
def check_script(script):
if (type(script) is str):
script = hex_str_to_bytes(script) # Assuming this is hex string
if (type(script) is bytes or type(script) is CScript):
return script
assert False