def PoW(TxBlockFile, ChainFile, PoWLen,
TxLen): #Updates LongestChain File for Each Block
block = ""
if TxBlockFile[-5] != "0":
chainBuffer = open(ChainFile, "r")
chain = chainBuffer.readlines()
chainBuffer.close()
block = chain[-1] #PoW for the Previous Transaction Block
else: #for TransactionBlock0.txt
block = "Day Zero Link in the Chain" + "\n"
block += rootMerkle(TxBlockFile,
TxLen) + "\n" #The Root Hash of the Merkle Tree
while True:
new_block = block + str(DSA.bitGenerator(2**128 - 1)) + "\n"
new_PoW = hashlib.sha3_256(new_block).hexdigest()
if new_PoW[:PoWLen] == "0" * PoWLen:
new_PoW += "\n" #PoW
block = new_block
block += new_PoW
break
#Write/append to the ChainFile
if TxBlockFile[-5] != "0":
chainBuffer = open(ChainFile, "a")
chainBuffer.write(block)
chainBuffer.close()
else: #for TransactionBlock0.txt
chainBuffer = open(ChainFile, "w")
chainBuffer.write(block)
chainBuffer.close()
def BeforeSign(p, q, g, payer_b, payee_b): #The Lines of the Transaction to be Signed
transaction = \
"*** Bitcoin transaction ***" + "\n" + \
"Serial number: " + str(DSA.bitGenerator(2**128-1)) + "\n" + \
"p: " + str(p) + "\n" + \
"q: " + str(q) + "\n" + \
"g: " + str(g) + "\n" + \
"Payer Public Key (beta): " + str(payer_b) + "\n" + \
"Payee Public Key (beta): " + str(payee_b) + "\n" + \
"Amount: " + satoshi() + " Satoshi" + "\n"
return transaction
def nineLine(p, q, g, beta): # First nine lines of single transaction.
transaction = \
"*** Bitcoin transaction ***" + "\n" + \
"Serial number: " + str(DSA.bitGenerator(2**128-1)) + "\n" + \
"Payer: " + payee() + "\n" + \
"Payee: " + payee() + "\n" + \
"Amount: " + satoshi() + " Satoshi" + "\n" + \
"p: " + str(p) + "\n" + \
"q: " + str(q) + "\n" + \
"g: " + str(g) + "\n" + \
"Public Key (beta): " + str(beta) + "\n"
return transaction
