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)
def chat(self, data):
"""接收聊天信息并打印"""
sender = data['from']
receiver = data['to']
logArea = self.father.logArea
log = ctime() + " Receive Message\n\n"
encryptedMessage = data['encryptedMessage']
encryptedKey = data['encryptedKey']
signature = data['signature']
senderPubKey = data['senderPubKey']
decryptionType = self.father.father.selfInfo['decryptionType']
# message = ''
r = RSA(0)
priKey = self.father.father.selfInfo['priKey']
key = r.decryption(encryptedKey, priKey)
if self.father.father.selfInfo['communicationType'] == 'rsa':
# priKey = self.father.father.selfInfo['priKey']
if len(encryptedMessage) > 5:
result = r.verify(encryptedMessage[0:6], signature,
senderPubKey)
else:
result = r.verify(encryptedMessage, signature,
senderPubKey)
if result:
log += ctime() + " Verify Successfully\n\n"
# father.father.logArea.insert(tk.END)
key = r.decryption(encryptedKey, priKey)
if decryptionType == 'caesar':
c = Caesar()
key = int(key)
message = c.decryption(encryptedMessage, key)
# pass
elif decryptionType == 'playfair':
p = Playfair(0)
p.generateMatrix(key)
message = p.decryption(encryptedMessage)
# pass
elif decryptionType == 'des':
d = des()
message = d.decrypt(key, encryptedMessage)
else:
d = des()
less = data['less']
# print("--------------------",key1, key2, encryptedMessage)
message = d.tdecrypt(key[2:10], key[14:22],
encryptedMessage)
message = message[0:-less]
# print("--------------------",message)
# pass
else:
# 输出不合格
pass
else:
r = RSA(0)
if len(encryptedMessage) > 5:
result = r.verify(encryptedMessage[0:6], signature,
senderPubKey)
else:
result = r.verify(encryptedMessage, signature,
senderPubKey)
if result:
log += ctime() + " Verify Successfully\n\n"
if decryptionType == 'caesar':
key = self.father.father.selfInfo['key']
c = Caesar(key)
ct, secretKey = c.encryption('aaa')
message = c.decryption(encryptedMessage[0],
secretKey)
print('-----------pass')
elif decryptionType == 'playfair':
p = Playfair(0)
p.generateMatrix(key)
message = p.decryption(encryptedMessage)
elif decryptionType == 'des':
d = des()
message = d.decrypt(key, encryptedMessage)
else:
d = des()
less = data['less']
message = d.tdecrypt(key[2:10], key[14:22],
encryptedMessage)
message = message[0:-less]
# pass
else:
print('-----------not pass')
pass
# print("i am here")
textArea = self.father.textArea
text = '['+ sender + ' -> ' + receiver + ' ' + \
ctime() + ']\n\t' + message + '\n'
textArea.insert(tk.END, text)
textArea.see(tk.END)
logArea.insert(tk.END, log)
logArea.see(tk.END)
print("i am here")
