def TransactionGen(p, q, g): #Generating one transaction
(payer_a, payer_b) = DSA.KeyGen(p, q, g) #Generating Keys for Payer
(payee_a, payee_b) = DSA.KeyGen(p, q, g) #Generating Keys for Payee
transaction = BeforeSign(p, q, g, payer_b, payee_b) #Generating first part of the Transaction
(r, s) = DSA.SignGen(transaction, p, q, g, payer_a, payer_b) #Signing the Transaction
transaction += \
"Signature (r): " + str(r) + "\n" + \
"Signature (s): " + str(s) + "\n"
#Appending the signatures
return transaction
def GenTxBlock(p, q, g, count):
whole_transaction = ""
for i in range(count):
transaction = ""
transaction += "*** Bitcoin transaction ***\n"
line = "Serial number: "
x = uuid.uuid4().int
line += str(x) + "\n"
transaction += line
line = "p: " + str(p) + "\n"
transaction += line
line = "q: " + str(q) + "\n"
transaction += line
line = "g: " + str(g) + "\n"
transaction += line
alpha, beta = DSA.KeyGen(p, q, g)
line = "Payer Public Key (beta): " + str(beta) + "\n"
transaction += line
alpha2, beta2 = DSA.KeyGen(p, q, g)
line = "Payee Public Key (beta): " + str(beta2) + "\n"
transaction += line
line = "Amount: "
y = random.randint(1, 1000)
line += str(y) + " Satoshi\n"
transaction += line
m = transaction
(r, s) = DSA.SignGen(m, p, q, g, alpha, beta)
line = "Signature (r): " + str(r) + "\n"
transaction += line
line = "Signature (s): " + str(s) + "\n"
transaction += line
whole_transaction += transaction
return whole_transaction
def GenTxBlock(p, q, g, count): transaction = "" temp = "" for i in range(count): alpha_payee, beta_payee = DSA.KeyGen(p,q,g) alpha_payer, beta_payer = DSA.KeyGen(p,q,g) temp += "*** Bitcoin transaction ***\n" temp += "Serial number: " + str(random.getrandbits(128)) + "\n" temp += "p: " + str(p) + "\n" temp += "q: " + str(q) + "\n" temp += "g: " + str(g) + "\n" temp += "Payer Public Key (beta): " + str(beta_payer) + "\n" temp += "Payee Public Key (beta): " + str(beta_payee) + "\n" temp += "Amount: " + str(random.randint(0, 1000)) + " Satoshi\n" r, s = DSA.SignGen(temp, p, q, g, alpha_payer, beta_payer); temp += "Signature (r): " + str(r) + '\n' temp += "Signature (s): " + str(s) + '\n' transaction += temp temp = "" return transaction
# DSA key generation
if KeyGenOn:
if ParamGenOn==0:
if os.path.exists('DSA_params.txt') == True:
inf = open('DSA_params.txt', 'r')
q = int(inf.readline())
p = int(inf.readline())
g = int(inf.readline())
inf.close()
print "DSA parameters are read from file DSA_params.txt"
else:
print 'DSA_params.txt does not exist'
sys.exit()
(alpha, beta) = DSA.KeyGen(p, q, g)
outf = open('DSA_skey.txt', 'w')
outf.write(str(q)+"\n")
outf.write(str(p)+"\n")
outf.write(str(g)+"\n")
outf.write(str(alpha)+"\n")
outf.close()
print "Public key written into file DSA_skey.txt"
outf = open('DSA_pkey.txt', 'w')
outf.write(str(q)+"\n")
outf.write(str(p)+"\n")
outf.write(str(g)+"\n")
outf.write(str(beta)+"\n")
outf.close()
print "Public key written into file DSA_pkey.txt"
