Moved bitcoin.py tests to their own file
This allows standard python testing tools to discover and run them.
This commit is contained in:
parent
a286b18aed
commit
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139
lib/bitcoin.py
139
lib/bitcoin.py
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@ -23,6 +23,7 @@ import re
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import sys
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import hmac
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from util import print_error
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try:
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import ecdsa
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@ -34,15 +35,9 @@ try:
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except ImportError:
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sys.exit("Error: AES does not seem to be installed. Try 'sudo pip install slowaes'")
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try:
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import pbkdf2
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except ImportError:
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sys.exit("Error: pbkdf2 does not seem to be installed. Try 'sudo pip install pbkdf2'")
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from util import print_error
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################################## transactions
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MIN_RELAY_TX_FEE = 1000
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# AES encryption
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@ -99,7 +94,7 @@ def op_push(i):
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return '4d' + int_to_hex(i,2)
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else:
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return '4e' + int_to_hex(i,4)
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def sha256(x):
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@ -136,7 +131,7 @@ def is_old_seed(seed):
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is_hex = (len(seed) == 32)
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except Exception:
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is_hex = False
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return is_hex or (uses_electrum_words and len(words) == 12)
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@ -164,9 +159,9 @@ def i2d_ECPrivateKey(pkey, compressed=False):
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'022100' + \
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'%064x' % _r + \
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'020101a144034200'
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return key.decode('hex') + i2o_ECPublicKey(pkey.pubkey, compressed)
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def i2o_ECPublicKey(pubkey, compressed=False):
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# public keys are 65 bytes long (520 bits)
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# 0x04 + 32-byte X-coordinate + 32-byte Y-coordinate
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@ -181,14 +176,14 @@ def i2o_ECPublicKey(pubkey, compressed=False):
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key = '04' + \
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'%064x' % pubkey.point.x() + \
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'%064x' % pubkey.point.y()
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return key.decode('hex')
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# end pywallet openssl private key implementation
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############ functions from pywallet #####################
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############ functions from pywallet #####################
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def hash_160(public_key):
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try:
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@ -349,7 +344,7 @@ def is_address(addr):
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def is_private_key(key):
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try:
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k = ASecretToSecret(key)
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k = ASecretToSecret(key)
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return k is not False
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except:
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return False
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@ -513,19 +508,19 @@ class EC_KEY(object):
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@classmethod
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def encrypt_message(self, message, pubkey):
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pk = ser_to_point(pubkey)
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if not ecdsa.ecdsa.point_is_valid(generator_secp256k1, pk.x(), pk.y()):
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raise Exception('invalid pubkey')
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ephemeral_exponent = number_to_string(ecdsa.util.randrange(pow(2,256)), generator_secp256k1.order())
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ephemeral = EC_KEY(ephemeral_exponent)
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ecdh_key = (pk * ephemeral.privkey.secret_multiplier).x()
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ecdh_key = ('%064x' % ecdh_key).decode('hex')
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key = hashlib.sha512(ecdh_key).digest()
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key_e, key_m = key[:32], key[32:]
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iv_ciphertext = aes.encryptData(key_e, message)
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ephemeral_pubkey = ephemeral.get_public_key(compressed=True).decode('hex')
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@ -536,20 +531,20 @@ class EC_KEY(object):
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def decrypt_message(self, encrypted):
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encrypted = base64.b64decode(encrypted)
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if len(encrypted) < 85:
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raise Exception('invalid ciphertext: length')
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magic = encrypted[:4]
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ephemeral_pubkey = encrypted[4:37]
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iv_ciphertext = encrypted[37:-32]
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mac = encrypted[-32:]
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if magic != 'BIE1':
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raise Exception('invalid ciphertext: invalid magic bytes')
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try:
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ephemeral_pubkey = ser_to_point(ephemeral_pubkey)
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except AssertionError, e:
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@ -608,10 +603,10 @@ def _CKD_priv(k, c, s, is_prime):
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return k_n, c_n
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# Child public key derivation function (from public key only)
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# K = master public key
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# K = master public key
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# c = master chain code
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# n = index of key we want to derive
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# This function allows us to find the nth public key, as long as n is
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# This function allows us to find the nth public key, as long as n is
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# non-negative. If n is negative, we need the master private key to find it.
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def CKD_pub(cK, c, n):
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if n & BIP32_PRIME: raise
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@ -633,7 +628,7 @@ def _CKD_pub(cK, c, s):
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def deserialize_xkey(xkey):
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xkey = DecodeBase58Check(xkey)
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xkey = DecodeBase58Check(xkey)
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assert len(xkey) == 78
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assert xkey[0:4].encode('hex') in ["0488ade4", "0488b21e"]
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depth = ord(xkey[4])
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@ -650,7 +645,7 @@ def deserialize_xkey(xkey):
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def bip32_root(seed):
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import hmac
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seed = seed.decode('hex')
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seed = seed.decode('hex')
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I = hmac.new("Bitcoin seed", seed, hashlib.sha512).digest()
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master_k = I[0:32]
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master_c = I[32:]
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@ -709,86 +704,4 @@ def bip32_private_key(sequence, k, chain):
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################################## transactions
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MIN_RELAY_TX_FEE = 1000
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import unittest
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class Test_bitcoin(unittest.TestCase):
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def test_crypto(self):
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for message in ["Chancellor on brink of second bailout for banks", chr(255)*512]:
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self.do_test_crypto(message)
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def do_test_crypto(self, message):
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G = generator_secp256k1
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_r = G.order()
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pvk = ecdsa.util.randrange( pow(2,256) ) %_r
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Pub = pvk*G
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pubkey_c = point_to_ser(Pub,True)
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pubkey_u = point_to_ser(Pub,False)
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addr_c = public_key_to_bc_address(pubkey_c)
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addr_u = public_key_to_bc_address(pubkey_u)
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#print "Private key ", '%064x'%pvk
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eck = EC_KEY(number_to_string(pvk,_r))
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#print "Compressed public key ", pubkey_c.encode('hex')
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enc = EC_KEY.encrypt_message(message, pubkey_c)
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dec = eck.decrypt_message(enc)
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assert dec == message
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#print "Uncompressed public key", pubkey_u.encode('hex')
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enc2 = EC_KEY.encrypt_message(message, pubkey_u)
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dec2 = eck.decrypt_message(enc)
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assert dec2 == message
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signature = eck.sign_message(message, True, addr_c)
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#print signature
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EC_KEY.verify_message(addr_c, signature, message)
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def test_bip32(self):
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# see https://en.bitcoin.it/wiki/BIP_0032_TestVectors
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xpub, xprv = self.do_test_bip32("000102030405060708090a0b0c0d0e0f", "m/0'/1/2'/2/1000000000")
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assert xpub == "xpub6H1LXWLaKsWFhvm6RVpEL9P4KfRZSW7abD2ttkWP3SSQvnyA8FSVqNTEcYFgJS2UaFcxupHiYkro49S8yGasTvXEYBVPamhGW6cFJodrTHy"
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assert xprv == "xprvA41z7zogVVwxVSgdKUHDy1SKmdb533PjDz7J6N6mV6uS3ze1ai8FHa8kmHScGpWmj4WggLyQjgPie1rFSruoUihUZREPSL39UNdE3BBDu76"
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xpub, xprv = self.do_test_bip32("fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a29f9c999693908d8a8784817e7b7875726f6c696663605d5a5754514e4b484542","m/0/2147483647'/1/2147483646'/2")
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assert xpub == "xpub6FnCn6nSzZAw5Tw7cgR9bi15UV96gLZhjDstkXXxvCLsUXBGXPdSnLFbdpq8p9HmGsApME5hQTZ3emM2rnY5agb9rXpVGyy3bdW6EEgAtqt"
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assert xprv == "xprvA2nrNbFZABcdryreWet9Ea4LvTJcGsqrMzxHx98MMrotbir7yrKCEXw7nadnHM8Dq38EGfSh6dqA9QWTyefMLEcBYJUuekgW4BYPJcr9E7j"
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def do_test_bip32(self, seed, sequence):
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xprv, xpub = bip32_root(seed)
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assert sequence[0:2] == "m/"
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path = 'm'
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sequence = sequence[2:]
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for n in sequence.split('/'):
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child_path = path + '/' + n
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if n[-1] != "'":
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xpub2 = bip32_public_derivation(xpub, path, child_path)
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xprv, xpub = bip32_private_derivation(xprv, path, child_path)
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if n[-1] != "'":
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assert xpub == xpub2
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path = child_path
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return xpub, xprv
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def test_aes(self):
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s = u'\u66f4\u7a33\u5b9a\u7684\u4ea4\u6613\u5e73\u53f0'
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self.do_test_aes(s, s)
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def do_test_aes(self, s, p):
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enc = pw_encode(s, p)
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dec = pw_decode(enc, p)
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assert dec == s
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if __name__ == "__main__":
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unittest.main()
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@ -0,0 +1,86 @@
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import unittest
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import sys
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from ecdsa.util import number_to_string
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from lib.bitcoin import (
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generator_secp256k1, point_to_ser, public_key_to_bc_address, EC_KEY,
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bip32_root, bip32_public_derivation, bip32_private_derivation, pw_encode,
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pw_decode)
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try:
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import ecdsa
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except ImportError:
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sys.exit("Error: python-ecdsa does not seem to be installed. Try 'sudo pip install ecdsa'")
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class Test_bitcoin(unittest.TestCase):
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def test_crypto(self):
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for message in ["Chancellor on brink of second bailout for banks", chr(255)*512]:
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self.do_test_crypto(message)
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def do_test_crypto(self, message):
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G = generator_secp256k1
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_r = G.order()
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pvk = ecdsa.util.randrange( pow(2,256) ) %_r
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Pub = pvk*G
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pubkey_c = point_to_ser(Pub,True)
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#pubkey_u = point_to_ser(Pub,False)
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addr_c = public_key_to_bc_address(pubkey_c)
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#addr_u = public_key_to_bc_address(pubkey_u)
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#print "Private key ", '%064x'%pvk
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eck = EC_KEY(number_to_string(pvk,_r))
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#print "Compressed public key ", pubkey_c.encode('hex')
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enc = EC_KEY.encrypt_message(message, pubkey_c)
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dec = eck.decrypt_message(enc)
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assert dec == message
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#print "Uncompressed public key", pubkey_u.encode('hex')
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#enc2 = EC_KEY.encrypt_message(message, pubkey_u)
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dec2 = eck.decrypt_message(enc)
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assert dec2 == message
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signature = eck.sign_message(message, True, addr_c)
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#print signature
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EC_KEY.verify_message(addr_c, signature, message)
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def test_bip32(self):
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# see https://en.bitcoin.it/wiki/BIP_0032_TestVectors
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xpub, xprv = self.do_test_bip32("000102030405060708090a0b0c0d0e0f", "m/0'/1/2'/2/1000000000")
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assert xpub == "xpub6H1LXWLaKsWFhvm6RVpEL9P4KfRZSW7abD2ttkWP3SSQvnyA8FSVqNTEcYFgJS2UaFcxupHiYkro49S8yGasTvXEYBVPamhGW6cFJodrTHy"
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assert xprv == "xprvA41z7zogVVwxVSgdKUHDy1SKmdb533PjDz7J6N6mV6uS3ze1ai8FHa8kmHScGpWmj4WggLyQjgPie1rFSruoUihUZREPSL39UNdE3BBDu76"
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xpub, xprv = self.do_test_bip32("fffcf9f6f3f0edeae7e4e1dedbd8d5d2cfccc9c6c3c0bdbab7b4b1aeaba8a5a29f9c999693908d8a8784817e7b7875726f6c696663605d5a5754514e4b484542","m/0/2147483647'/1/2147483646'/2")
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assert xpub == "xpub6FnCn6nSzZAw5Tw7cgR9bi15UV96gLZhjDstkXXxvCLsUXBGXPdSnLFbdpq8p9HmGsApME5hQTZ3emM2rnY5agb9rXpVGyy3bdW6EEgAtqt"
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assert xprv == "xprvA2nrNbFZABcdryreWet9Ea4LvTJcGsqrMzxHx98MMrotbir7yrKCEXw7nadnHM8Dq38EGfSh6dqA9QWTyefMLEcBYJUuekgW4BYPJcr9E7j"
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def do_test_bip32(self, seed, sequence):
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xprv, xpub = bip32_root(seed)
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assert sequence[0:2] == "m/"
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path = 'm'
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sequence = sequence[2:]
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for n in sequence.split('/'):
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child_path = path + '/' + n
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if n[-1] != "'":
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xpub2 = bip32_public_derivation(xpub, path, child_path)
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xprv, xpub = bip32_private_derivation(xprv, path, child_path)
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if n[-1] != "'":
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assert xpub == xpub2
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path = child_path
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return xpub, xprv
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def test_aes(self):
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s = u'\u66f4\u7a33\u5b9a\u7684\u4ea4\u6613\u5e73\u53f0'
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self.do_test_aes(s, s)
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def do_test_aes(self, s, p):
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enc = pw_encode(s, p)
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dec = pw_decode(enc, p)
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assert dec == s
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