| 摘要 |
A method, system and terminal for encrypting and decrypting an application program on a communication terminal are disclosed, including: the communication terminal using an identification number of a subscriber identification card as an encryption key, performing encryption processing on an application program to be protected, and obtaining an encrypted application program; when a user accesses the encrypted application program, the communication terminal performing matching processing on an identification number of a subscriber identification card inserted currently and the encryption key; and if a processing result is that the identification number of the subscriber identification card inserted currently is matched with the encryption key, performing decryption processing on the encrypted application program for the user to use. By encrypting an application program installed in the terminal through a key in the subscriber identification card, the user can freely select an application required to be encrypted in the terminal, which enhances the security of the application program in the terminal when accessed and used without influencing the access experience of the user for programs with low security requirements, and enhances the security of private data of the user in the terminal without losing good user experience. |
