def witness_script(version, pubkey): if (version == 0): pubkeyhash = bytes_to_hex_str(ripemd160(sha256(hex_str_to_bytes(pubkey)))) pkscript = "0014" + pubkeyhash elif (version == 1): # 1-of-1 multisig scripthash = bytes_to_hex_str(sha256(hex_str_to_bytes("5121" + pubkey + "51ae"))) pkscript = "0020" + scripthash else: assert("Wrong version" == "0 or 1") return pkscript
def p2pkh_address_to_script(self,v): pubkey = hex_str_to_bytes(v['pubkey']) p2wpkh = CScript([OP_0, hash160(pubkey)]) p2sh_p2wpkh = CScript([OP_HASH160, hash160(p2wpkh), OP_EQUAL]) p2pk = CScript([pubkey, OP_CHECKSIG]) p2pkh = CScript(hex_str_to_bytes(v['scriptPubKey'])) p2sh_p2pk = CScript([OP_HASH160, hash160(p2pk), OP_EQUAL]) p2sh_p2pkh = CScript([OP_HASH160, hash160(p2pkh), OP_EQUAL]) p2wsh_p2pk = CScript([OP_0, sha256(p2pk)]) p2wsh_p2pkh = CScript([OP_0, sha256(p2pkh)]) p2sh_p2wsh_p2pk = CScript([OP_HASH160, hash160(p2wsh_p2pk), OP_EQUAL]) p2sh_p2wsh_p2pkh = CScript([OP_HASH160, hash160(p2wsh_p2pkh), OP_EQUAL]) return [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh]
def create_witnessprogram(version, node, utxo, pubkey, encode_p2sh, amount): pkscript = witness_script(version, pubkey); if (encode_p2sh): p2sh_hash = bytes_to_hex_str(ripemd160(sha256(hex_str_to_bytes(pkscript)))) pkscript = "a914"+p2sh_hash+"87" inputs = [] outputs = {} inputs.append({ "txid" : utxo["txid"], "vout" : utxo["vout"]} ) coinbase = CTransaction() DUMMY_P2SH = "8poAwF24PZJebPTtKJVyvAdFw1u7hX6uVX" # P2SH of "OP_1 OP_DROP" outputs[DUMMY_P2SH] = amount tx_to_witness = node.createrawtransaction(inputs,outputs) #replace dummy output with our own tx_to_witness = tx_to_witness[0:110] + addlength(pkscript) + tx_to_witness[-8:] return tx_to_witness
def p2sh_address_to_script(self, v): bare = CScript(hex_str_to_bytes(v['hex'])) p2sh = CScript(hex_str_to_bytes(v['scriptPubKey'])) p2wsh = CScript([OP_0, sha256(bare)]) p2sh_p2wsh = CScript([OP_HASH160, hash160(p2wsh), OP_EQUAL]) return ([bare, p2sh, p2wsh, p2sh_p2wsh])