def escrow_example():
'''
P2SH Address:
2MzDcMCxcZnNnAZzFqsyuyZ4vuNCB6Qjvxd
Funding tx:
db1b045ea09581a51a5b5f851e7e3a64542123885e071fd6d4ff7428703a2504
Spending tx nlocktime = 30:
Refund TX:
23daa9d3868255bab14d5dfe46f7fb787aaef49b17d0014902e36e4491440311
'''
SelectParams('testnet')
tx = TX(test=True)
print "=" * 50
print("=" * 10 + " ESCROW EXAMPLE")
print "=" * 50 + "\n"
# Setup keys
data = open("./keys/EC_private_test.bin", "rb").read()
alice = CECKey()
alice.set_privkey(data)
data = open("./keys/EC_private_test2.bin", "rb").read()
bob = CECKey()
bob.set_privkey(data)
amount = 0.001 # In bitcoins
redeem_script, p2sh_address = tx.setup_escrow(alice.get_pubkey(),
bob.get_pubkey(), amount, 30)
# Funding tx id + redeeming bitcoin address
funding_tx = "db1b045ea09581a51a5b5f851e7e3a6" + \
"4542123885e071fd6d4ff7428703a2504"
address = "mweZnPjTeyGHVS2d3SojAGujY36sd3wQ49"
# Note: Make sure pick correct vout - default is 0
tx2, sighash = tx.get_tx(redeem_script,
address,
amount - 0.0001,
funding_tx,
20,
vout=1)
# Sign
alice_sig = alice.sign(sighash)
bob_sig = bob.sign(sighash)
print "P2SH %s" % p2sh_address
print "Redeem script:\n%s\n" % binascii.hexlify(redeem_script)
print "Redeem script Hash:\n%s\n" % binascii.hexlify(
sha256(sha256(redeem_script)))
redeem_tx = tx.spend_escrow(alice_sig, bob_sig, tx2, redeem_script)
print "REDEEM TX is:\n%s\n" % binascii.hexlify(redeem_tx)
refunded_tx = tx.refund_tx(alice_sig, tx2, redeem_script)
print "REFUND TX is:\n%s\n" % binascii.hexlify(refunded_tx)
print "=" * 50 + "\n\n"
def preimage_example():
'''
Refund test:
P2SH Address:
2MscMqe6Ag5NmZKCsELKDPJRJWnPR6GGD9B
Funding tx:
d49038dd9141f77c230208fe1cdd24937c61a1b63f40b8a87ab50971970ac2b7
Spending tx nlocktime = 10:
Refund TX:
f77245db1c81b49c72464e61e3738a60f6e21c0bb744f8729def4a9877082e73
Preimage test:
P2SH Address:
2NEFkj2gMZguX3QtFp31XKfnRdUpEoXTVNv
Funding tx:
91e6953fdcc15687ffc54e76d55ed4b92ef60cd483e0633ef226f7509513c7d2
Spending tx nlocktime = 10:
Spending TX:
e006b7d1566045e136c13446114e51513f1453a7e2eb7e534d04bd7dc09532f7
Other:
1/
P2SH Address: 2N6uq4bLT6UTqqxNo7YQ5TyRrFVWSRAFyxT
Funding TX:
8f717d1babd532b337cb80e743844f270129c744ebfc1ff7f6b43c1d855adc75
Spending TX:
b9cfbbdef00319db95c0beae8f73de4f7639eacc9b2006a70d64b494673921eb
'''
SelectParams('testnet')
tx = TX(test=True)
print "=" * 50
print("=" * 10 + " PREIMAGE EXAMPLE")
print "=" * 50 + "\n"
# Setup keys
data = open("./keys/EC_private_test.bin", "rb").read()
alice = CECKey()
alice.set_privkey(data)
data = open("./keys/EC_private_test2.bin", "rb").read()
bob = CECKey()
bob.set_privkey(data)
preimages = [sha256("test" + str(x)) for x in range(1, 16)]
hashes = [ripemd160(x) for x in preimages]
# Serialize hashes
serial_hashes = ""
for i in range(len(hashes)):
serial_hashes += hashes[i]
tx.get_hashes_from_serial(serial_hashes, 15, 20)
amount = 0.001 # In bitcoins
redeem_script, funding_tx = tx.setup_preimage(alice.get_pubkey(),
bob.get_pubkey(), hashes,
amount, 10)
# Funding tx id + redeeming bitcoin address
funding_tx = "8f717d1babd532b337cb80e743844f270" + \
"129c744ebfc1ff7f6b43c1d855adc75"
address = "mweZnPjTeyGHVS2d3SojAGujY36sd3wQ49"
# Note: Make sure pick correct vout - default is 0
tx2, sighash = tx.get_tx(redeem_script, address, amount - 0.0001,
funding_tx, 5)
# Sign
alice_sig = alice.sign(sighash)
bob_sig = bob.sign(sighash)
redeem_tx = tx.spend_preimage(preimages, bob_sig, tx2, redeem_script)
print "REDEEM TX is:\n%s\n" % binascii.hexlify(redeem_tx)
refunded_tx = tx.refund_tx(alice_sig, tx2, redeem_script)
print "REFUND TX is:\n%s\n" % binascii.hexlify(refunded_tx)
serial_keys = tx.get_keys_from_tx(redeem_tx)
# print "SERIAL KEYS:\n%s\n" % binascii.hexlify(serial_keys)
# # write to file to test in c++
# target = open("keys.bin", 'wb')
# target.write(serial_keys)
# target.close()
print "=" * 50 + "\n\n"