64 lines
1.6 KiB
Python
64 lines
1.6 KiB
Python
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Copyright (c) 2024 tecnovert
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# Distributed under the MIT software license, see the accompanying
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# file LICENSE or http://www.opensource.org/licenses/mit-license.php.
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from basicswap.chainparams import Coins
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from basicswap.interface.btc import Secp256k1Interface
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from basicswap.util.address import (
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b58decode,
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b58encode,
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)
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from basicswap.util.crypto import (
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blake256,
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ripemd160,
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)
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class DCRInterface(Secp256k1Interface):
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@staticmethod
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def coin_type():
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return Coins.DCR
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@staticmethod
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def exp() -> int:
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return 8
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@staticmethod
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def COIN() -> int:
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return 100000000
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@staticmethod
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def nbk() -> int:
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return 32
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@staticmethod
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def nbK() -> int: # No. of bytes requires to encode a public key
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return 33
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def __init__(self, coin_settings, network, swap_client=None):
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super().__init__(network)
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def pkh(self, pubkey: bytes) -> bytes:
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return ripemd160(blake256(pubkey))
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def pkh_to_address(self, pkh: bytes) -> str:
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prefix = self.chainparams_network()['pubkey_address']
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data = prefix.to_bytes(2, 'big') + pkh
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checksum = blake256(blake256(data))
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return b58encode(data + checksum[0:4])
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def decode_address(self, address: str) -> bytes:
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addr_data = b58decode(address)
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if addr_data is None:
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return None
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prefixed_data = addr_data[:-4]
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checksum = addr_data[-4:]
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if blake256(blake256(prefixed_data))[:4] != checksum:
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raise ValueError('Checksum mismatch')
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return prefixed_data
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