def seventh_get(self):
print("A用KA解密数据，得到主通信密钥和B的IP地址，验证结束")
self._decode_data(function_id=2, key=self.COMMUNICATION_KEY)
dict = file2dict('tmp.txt')
print("Decode Data")
print(dict)
self.IP_TARGET = dict['IP_TARGET']
self.MAIN_COMMUNICATION_KEY = dict['KC']
def fourth_verify_and_send(self):
print("用自己的通信密钥KB解密数据")
self._decode_data(function_id=2, key=COMMUNICATION_KEY_DICT['KB'])
dict = file2dict('tmp.txt')
if True:
pass
print("Decode Data")
print(dict)
self.IP_TARGET = dict['IP_TARGET']
print("经过一些验证措施之后，保存A的IP地址")
# 省略一些验证步骤
else:
print('get false msg! ')
def second_get(self):
print("用私钥解密数据")
self._decode_data()
dict = file2dict('tmp.txt')
print("Decode Data")
print(dict)
print("保存 KA,KB")
self.COMMUNICATION_KEY_CHAIN['KA'] = dict['A_COMMUNICATION_KEY']
self.COMMUNICATION_KEY_CHAIN['KB'] = COMMUNICATION_KEY_DICT['KB']
if self.get_privilege('MA', 'MB'):
# 获取权限
print("允许访问")
self.__third_send_flag = True
return True
else:
return False
def sixth_send(self):
print("用B的通信密钥解密数据包，保存主通信密钥")
self._decode_data(2, self.COMMUNICATION_KEY_CHAIN['KB'])
dict = file2dict('tmp.txt')
self.COMMUNICATION_KEY_CHAIN['KC'] = dict['C_COMMUNICATION_KEY']
print("Decode Data")
print(dict)
print("随后，将B的IP地址和主通信密钥用KA加密后发送给A")
data = OrderedDict()
# 看上去是这么发，实际上IP地址本来就包含在数据包中，这么做只是为了强调
data['SIP'] = self.IP
data['TIP'] = IPADDR_DICT['MA']
data['SMAC'] = self.DEVICE_ID
data['TMAC'] = DEVICE_ID_DICT['MA']
data['CONTENT'] = 'IT IS B\' IP DECODE BY YOUR KEY '
data['IP_TARGET'] = IPADDR_DICT['MB']
data['KC'] = self.COMMUNICATION_KEY_CHAIN['KC']
data['FLAG'] = 'CER-6-INFORM'
print("Raw Data")
print(data)
dict2file(data, 'tmp.txt')
self._encode_data(method='AES', key=self.COMMUNICATION_KEY_CHAIN['KA'])
print("Encode Data")
print(open('tmp.txt', 'rb').read())
def commnication_get(self):
print("接受的时候，接受方用主通信密钥解密数据")
self._decode_data(function_id=2, key=self.MAIN_COMMUNICATION_KEY)
dict = file2dict('tmp.txt')
print('GET CONTENT')
print(dict['CONTENT'])