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The paper presents a security enhancement method, which is based on smart security TF card (STF), to improve the security of short message for mobile terminal system (MTS). The method consists of three parts: the use of STF as a secure cryptography service module, increasing and then invoking encryption/decryption components for SMS processing in MTS, increasing secure SMS gateway (SSG) on the SMS server side. Following the method, the confidentiality of the message can be guaranteed either in the air or in mobile terminal itself and message traffic analysis attack can also be prevented to some extent. |
