def getinfo(args):
for filename in args:
print "----------------"
print "Filename: ", filename
privateKey = readPrivateKey(filename)
k = Key()
k.setPrivateKey(privateKey)
print "Public key: ", k.getPublicKey().encode("hex")
print "Address: ", getAddress(k)
def makekey(args):
k = Key()
k.makeNewKey(compressed=True)
privateKey = k.getPrivateKey()
privateKey = base58.encodeBase58Check(privateKey, 128) #PRIVKEY = 128
address = getAddress(k)
with open(address, "wb") as f:
f.write(privateKey + "\n")
print "Saved as ", address
def spend(args):
#Load the keys
keys = []
for filename in args:
privateKey = readPrivateKey(filename)
k = Key()
k.setPrivateKey(privateKey)
keys.append(k)
def getKey(question):
for i in range(len(keys)):
print i + 1, getAddress(keys[i])
i = int(raw_input(question)) - 1
return keys[i]
#Ask for input information:
inputs = []
totalAmount = 0
while True:
txid = raw_input("Transaction ID of unspent output (Enter to stop): ")
txid = txid.strip()
if txid == "":
break
txid = binascii.unhexlify(txid)[::-1]
vout = int(raw_input("Output index of unspent output: "))
k = getKey("Address of unspent output: ")
inputs.append((txid, vout, k))
totalAmount += int(
decimal.Decimal(raw_input("Amount in unspent output (mBTC): ")) *
mBTC)
print "Total of amounts: %s mBTC" % str(
decimal.Decimal(totalAmount) / mBTC)
fee = int(0.01 * mBTC)
print "Transaction fee is set to: %s mBTC" % str(
decimal.Decimal(fee) / mBTC)
destAddress = raw_input("Destination address: ")
destHash = base58.decodeBase58Check(destAddress, 0) #PUBKEY_ADDRESS = 0
destAmount = int(
decimal.Decimal(raw_input("Amount to send to destination (mBTC): ")) *
mBTC)
if destAmount < 0:
print "Negative amount is not allowed"
sys.exit(2)
if destAmount > totalAmount - fee:
print "Not enough funds"
sys.exit(1)
changeKey = getKey("Address to send change amount to: ")
changeAddress = getAddress(changeKey)
changeHash = base58.decodeBase58Check(changeAddress,
0) #PUBKEY_ADDRESS = 0
tx = btx.Transaction(
tx_in=[btx.TxIn(x[0], x[1]) for x in inputs],
tx_out=[btx.TxOut(destAmount, btx.Script.standardPubKey(destHash))])
changeAmount = totalAmount - destAmount - fee
if changeAmount < 0:
raise Exception("Error: got negative change amount")
elif changeAmount == 0:
print "Note: change amount is zero - no change is sent"
else:
tx.tx_out.append(
btx.TxOut(changeAmount, btx.Script.standardPubKey(changeHash)))
for i in range(len(inputs)):
#print tx.tx_in[i].previousOutputHash.encode("hex"), tx.tx_in[i].previousOutputIndex
key = inputs[i][2]
address = getAddress(key)
hash = base58.decodeBase58Check(address, 0) #PUBKEY_ADDRESS = 0
scriptPubKey = btx.Script.standardPubKey(hash)
tx.signInput(i, scriptPubKey, [None, key.getPublicKey()], [key])
print "Serialized transaction:"
print tx.serialize().encode("hex")
print "Transaction ID:", tx.getTransactionID()[::-1].encode("hex")
