def main():
print('================== - Criptografia RSA - ======================')
blockSize = 15
rsa = RSA()
msg_f = open("original_msg")
o_message = msg_f.read()
print('================== -------------------- ======================')
numList = str2num(o_message)
print(' ')
print('Mensagem original')
print(o_message)
print(' ')
print('---------------------------')
#print(' ')
print(numList)
blocks = num2block(numList, blockSize)
#print(blocks)
y = rsa.encryption(blocks)
print("--------------------------")
x = rsa.decryption(y)
numList = block2num(x, blockSize)
print('---------- Voltando numero para string----------------')
#print(numList)
print(' ')
msg = num2str(numList)
print(msg)
def send(self, data):
receiverCertificate = data['certificate']
inputEntry = self.father.inputEntry
message = inputEntry.get()
sender = self.father.father.username
receiver = receiverCertificate['username']
encryptionType = receiverCertificate['encryptionType']
receiverPublicKey = receiverCertificate['publicKey']
communicationType = receiverCertificate['communicationType']
less = 0
logArea = self.father.logArea
log = ctime() + " Receive Certificate\n\n"
if communicationType == 'rsa':
log += ctime() + " Communication Type: RSA\n\n"
# logArea.insert(tk.END, log + '\n\n')
# logArea.see(tk.END)
if encryptionType == 'caesar':
# encryption = Caesar()
c = Caesar()
cypherText, key = c.encryption(message)
r = RSA(0)
encryptedKey = r.encryption(key, receiverPublicKey)
# print(cypherText, self.father.father.selfInfo['priKey'])
if len(cypherText) > 5:
signature = r.sign(
cypherText[0:6],
self.father.father.selfInfo['priKey'])
else:
signature = r.sign(
cypherText,
self.father.father.selfInfo['priKey'])
data = {
'type': 'singleChat',
'encryptedMessage': cypherText,
'encryptedKey': encryptedKey,
'signature': signature,
'to': receiver,
'from': sender
}
log += ctime() + " Encryption Type: Caesar\n\n"
# logArea.insert(tk.END, log + '\n\n')
# logArea.see(tk.END)
elif encryptionType == 'playfair':
p = Playfair()
cypherText, key = p.encryption(message)
r = RSA(0)
encryptedKey = r.encryption(key, receiverPublicKey)
if len(cypherText) > 5:
signature = r.sign(
cypherText[0:6],
self.father.father.selfInfo['priKey'])
else:
signature = r.sign(
cypherText,
self.father.father.selfInfo['priKey'])
data = {
'type': 'singleChat',
'encryptedMessage': cypherText,
'encryptedKey': encryptedKey,
'signature': signature,
'to': receiver,
'from': sender
}
log += ctime() + " Encryption Type: Playfair\n\n"
elif encryptionType == 'des':
d = des()
key, temp = d.randomkey()
cypherText = d.encrypt(key, message)
# if message
r = RSA(0)
encryptedKey = r.encryption(key, receiverPublicKey)
if len(cypherText) > 5:
signature = r.sign(
cypherText[0:6],
self.father.father.selfInfo['priKey'])
else:
signature = r.sign(
cypherText,
self.father.father.selfInfo['priKey'])
data = {
'type': 'singleChat',
'encryptedMessage': cypherText,
'encryptedKey': encryptedKey,
'signature': signature,
'to': receiver,
'from': sender
}
log += ctime() + " Encryption Type: DES\n\n"
# pass
else:
d = des()
keys = d.randomkey()
# less = 0
if len(message) % 8 != 0:
less = 8 - (len(message) - len(message) // 8 * 8)
for i in range(less):
message += '0'
print(message)
# print("--------------------", keys[0], keys[1])
cypherText = d.tencrypt(keys[0], keys[1], message)
print("--------------------", keys[0], keys[1],
cypherText)
r = RSA(0)
encryptedKey = r.encryption(keys, receiverPublicKey)
if len(cypherText) > 5:
signature = r.sign(
cypherText[0:6],
self.father.father.selfInfo['priKey'])
else:
signature = r.sign(
cypherText,
self.father.father.selfInfo['priKey'])
data = {
'less': less,
'type': 'singleChat',
'encryptedMessage': cypherText,
'encryptedKey': encryptedKey,
'signature': signature,
'to': receiver,
'from': sender
}
log += ctime() + " Encryption Type: 3DES\n\n"
else:
mA = data['mA']
key = pow(mA, self.father.father.selfInfo['secretB'],
self.father.father.selfInfo['pAndg'][0])
if encryptionType == 'caesar':
c = Caesar(key)
cypherText = c.encryption(message)
r = RSA(0)
encryptedKey = r.encryption(key, receiverPublicKey)
if len(cypherText) > 5:
signature = r.sign(
cypherText[0:6],
self.father.father.selfInfo['priKey'])
else:
signature = r.sign(
cypherText,
self.father.father.selfInfo['priKey'])
data = {
'type': 'singleChat',
'encryptedMessage': cypherText,
'encryptedKey': encryptedKey,
'signature': signature,
'to': receiver,
'from': sender
}
log += ctime() + " Encryption Type: Playfair\n\n"
elif encryptionType == 'playfair':
p = Playfair()
cypherText, key = p.encryption(message)
r = RSA(0)
encryptedKey = r.encryption(key, receiverPublicKey)
if len(cypherText) > 5:
signature = r.sign(
cypherText[0:6],
self.father.father.selfInfo['priKey'])
else:
signature = r.sign(
cypherText,
self.father.father.selfInfo['priKey'])
data = {
'type': 'singleChat',
'encryptedMessage': cypherText,
'encryptedKey': encryptedKey,
'signature': signature,
'to': receiver,
'from': sender
}
log += ctime() + " Encryption Type: Playfair\n\n"
elif encryptionType == 'des':
d = des()
key, temp = d.randomkey()
cypherText = d.encrypt(key, message)
# if message
r = RSA(0)
encryptedKey = r.encryption(key, receiverPublicKey)
if len(cypherText) > 5:
signature = r.sign(
cypherText[0:6],
self.father.father.selfInfo['priKey'])
else:
signature = r.sign(
cypherText,
self.father.father.selfInfo['priKey'])
data = {
'type': 'singleChat',
'encryptedMessage': cypherText,
'encryptedKey': encryptedKey,
'signature': signature,
'to': receiver,
'from': sender
}
log += ctime() + " Encryption Type: DES\n\n"
# pass
else:
d = des()
keys = d.randomkey()
# less = 0
if len(message) % 8 != 0:
less = 8 - (len(message) - len(message) // 8 * 8)
for i in range(less):
message += '0'
print(message)
# print("--------------------", keys[0], keys[1])
cypherText = d.tencrypt(keys[0], keys[1], message)
print("--------------------", keys[0], keys[1],
cypherText)
r = RSA(0)
encryptedKey = r.encryption(keys, receiverPublicKey)
if len(cypherText) > 5:
signature = r.sign(
cypherText[0:6],
self.father.father.selfInfo['priKey'])
else:
signature = r.sign(
cypherText,
self.father.father.selfInfo['priKey'])
data = {
'less': less,
'type': 'singleChat',
'encryptedMessage': cypherText,
'encryptedKey': encryptedKey,
'signature': signature,
'to': receiver,
'from': sender
}
log += ctime() + " Encryption Type: 3DES\n\n"
# pAndg = receiverCertificate['pAndg']
# self.father.father.selfInfo['secretB'] = getPrimeNum(20)
# mB = pow(pAndg[1], self.father.father.selfInfo['secretB'], pAndg[0])
# receiverCertificate['mB'] = mB
pass
jData = json.dumps(data)
self.socket.send(jData.encode())
print('__send__' + jData)
# update log
log += ctime() + " Send Message Success\n\n"
logArea.insert(tk.END, log)
logArea.see(tk.END)
# update text
textArea = self.father.textArea
if less != 0:
message = message[0:-less]
text = '['+ sender + ' -> ' + receiver + ' ' + \
ctime() + ']\n\t' + message + '\n'
textArea.insert(tk.END, text)
textArea.see(tk.END)
inputEntry.delete(0, tk.END)
