1 files changed, 69 insertions, 0 deletions
diff --git a/test/functional/test_framework/address.py b/test/functional/test_framework/address.py
new file mode 100644
index 0000000000..96bebe1ea1
--- /dev/null
+++ b/test/functional/test_framework/address.py
@@ -0,0 +1,69 @@
+#!/usr/bin/env python3
+# Copyright (c) 2016 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Encode and decode BASE58, P2PKH and P2SH addresses."""
+
+from .script import hash256, hash160, sha256, CScript, OP_0
+from .util import bytes_to_hex_str, hex_str_to_bytes
+
+chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
+
+def byte_to_base58(b, version):
+    result = ''
+    str = bytes_to_hex_str(b)
+    str = bytes_to_hex_str(chr(version).encode('latin-1')) + str
+    checksum = bytes_to_hex_str(hash256(hex_str_to_bytes(str)))
+    str += checksum[:8]
+    value = int('0x'+str,0)
+    while value > 0:
+        result = chars[value % 58] + result
+        value //= 58
+    while (str[:2] == '00'):
+        result = chars[0] + result
+        str = str[2:]
+    return result
+
+# TODO: def base58_decode
+
+def keyhash_to_p2pkh(hash, main = False):
+    assert (len(hash) == 20)
+    version = 0 if main else 111
+    return byte_to_base58(hash, version)
+
+def scripthash_to_p2sh(hash, main = False):
+    assert (len(hash) == 20)
+    version = 5 if main else 196
+    return byte_to_base58(hash, version)
+
+def key_to_p2pkh(key, main = False):
+    key = check_key(key)
+    return keyhash_to_p2pkh(hash160(key), main)
+
+def script_to_p2sh(script, main = False):
+    script = check_script(script)
+    return scripthash_to_p2sh(hash160(script), main)
+
+def key_to_p2sh_p2wpkh(key, main = False):
+    key = check_key(key)
+    p2shscript = CScript([OP_0, hash160(key)])
+    return script_to_p2sh(p2shscript, main)
+
+def script_to_p2sh_p2wsh(script, main = False):
+    script = check_script(script)
+    p2shscript = CScript([OP_0, sha256(script)])
+    return script_to_p2sh(p2shscript, main)
+
+def check_key(key):
+    if (type(key) is str):
+        key = hex_str_to_bytes(key) # Assuming this is hex string
+    if (type(key) is bytes and (len(key) == 33 or len(key) == 65)):
+        return key
+    assert(False)
+
+def check_script(script):
+    if (type(script) is str):
+        script = hex_str_to_bytes(script) # Assuming this is hex string
+    if (type(script) is bytes or type(script) is CScript):
+        return script
+    assert(False)