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move address_to_script to bitcoin.py

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This commit is contained in:
ThomasV
2017-08-29 09:53:16 +02:00
parent 5f1d9cbcf5
commit 794baa16c8
3 changed files with 23 additions and 18 deletions
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20
lib/bitcoin.py
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@@ -199,6 +199,9 @@ def op_push(i):
else:
return '4e' + int_to_hex(i,4)
def push_script(x):
return op_push(len(x)//2) + x
def sha256(x):
x = to_bytes(x, 'utf8')
@@ -314,7 +317,24 @@ def public_key_to_p2pkh(public_key):
def public_key_to_p2wpkh(public_key):
return hash_160_to_bc_address(hash_160(public_key), ADDRTYPE_P2WPKH)
def address_to_script(addr):
addrtype, hash_160 = bc_address_to_hash_160(addr)
if addrtype == ADDRTYPE_P2PKH:
script = '76a9' # op_dup, op_hash_160
script += push_script(bh2u(hash_160))
script += '88ac' # op_equalverify, op_checksig
elif addrtype == ADDRTYPE_P2SH:
script = 'a9' # op_hash_160
script += push_script(bh2u(hash_160))
script += '87' # op_equal
else:
raise BaseException('unknown address type')
return script
def address_to_scripthash(addr):
script = address_to_script(addr)
h = sha256(bytes.fromhex(script))[0:32]
return bytes(reversed(h)).hex()
__b58chars = b'123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'