forked from 3wordchant/capsul-flask
48 lines
1.4 KiB
Python
48 lines
1.4 KiB
Python
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from ecdsa import SigningKey, SECP256k1, VerifyingKey
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import binascii
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import hashlib
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def sha_digest(hexastring):
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return hashlib.sha256(binascii.unhexlify(hexastring)).hexdigest()
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def base58encode(hexastring):
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chars = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
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int_val = int(hexastring, 16)
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encoded = encode58("", int_val, chars)
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return encoded
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def encode58(string, int_val, chars):
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if int_val == 0:
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return string
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else:
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new_val, rem = divmod(int_val, 58)
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new_string = (chars[rem]) + string
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return encode58(new_string, new_val, chars)
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sk = SigningKey.generate(curve=SECP256k1)
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pem = sk.to_pem()
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pem = pem.decode("utf-8")
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print("")
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print(pem)
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print("")
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public_key = SigningKey.from_pem(pem).get_verifying_key().to_string()
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public_key_hex = binascii.hexlify(public_key)
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checksum_int = int(public_key_hex, 16)
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if(checksum_int % 2 == 0):
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prefix = "02"
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else:
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prefix = "03"
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public_key_compressed = prefix + public_key_hex[0:64].decode("utf-8")
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hash_of_public_key = sha_digest(public_key_compressed)
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ripe_hash_of_public_key = hashlib.new("ripemd160")
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ripe_hash_of_public_key.update(binascii.unhexlify(hash_of_public_key))
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version_hash = "0F02"+ripe_hash_of_public_key.hexdigest()
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version_checksum = sha_digest(sha_digest(version_hash))[0:8]
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btcpay_sin = base58encode(version_hash+version_checksum)
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print("")
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print(btcpay_sin)
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print("")
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