Abstract :
According to the security problems that may exist when the users transport the sensitive data on the network, this paper tries to optimize and specify the user´s encryption processing for the sensitive data. Then we propose a strategy using double encryption technology, and combined with the check of messages technology, to ensure that the users´ data transport safe and effective. The client generates symmetric key and message digest, and set them add behind the message encrypted transmission together. It ensures that the user data be security and integrity. It also uses the double encryption technology to encrypt symmetric key once again, which ensures the security of key transmission. Experiments show that improvement program technology not only ensures the message security of the transmission and the security distribution of keys, but also it doesn´t reduce the efficiency of encryption and decryption data.
