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# -*- coding: utf-8 -*-
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import basicswap.contrib.Keccak as Keccak
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from basicswap.util.integer import encode_varint
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from .contrib.MoneroPy.base58 import encode as xmr_b58encode
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def cn_fast_hash(s):
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k = Keccak.Keccak()
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return k.Keccak((len(s) * 8, s.hex()), 1088, 512, 32 * 8, False).lower() # r = bitrate = 1088, c = capacity, n = output length in bits
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def encode_address(view_point: bytes, spend_point: bytes, version=18) -> str:
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prefix_bytes = version if isinstance(version, bytes) else encode_varint(version)
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buf = prefix_bytes + spend_point + view_point
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h = cn_fast_hash(buf)
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buf = buf + bytes.fromhex(h[0: 8])
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return xmr_b58encode(buf.hex())
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