Java Smart Card Credible Certification Design And Implementation

With the rapid development of the information, the smart cards have beenintegrated into our daily life, and widely used in many fields. Java cards, who has theadvantage of easy implementation, short cycle, platform-independent andmulti-application, originated from smart cards and have move beyond the smart cards. Itis becoming an issue in research now. As an important part of information security, thesafety defense style has been changed from initiative to passive by Trusted Computing.The reliability of computing platform has been increased. With the purpose ofestablishing the reliability environment in Java Card, the subject integrated the TrustedComputing with Java Card tentatively.This article analyzes the technology of Java Card and Trusted Computing in detail.Aiming at the weakness of TPM who is lack of the symmetric cryptographic algorithm,the paper is trying to draw the AES algorithm into the platform. In consideration ofhardware requirement of Java Card, the optimal design of MixColumns in AEScryptographic algorithm is improved, which can enhance the effectiveness of thealgorithm. It is clear that Optimization algorithm has advantages for operating speed bycomparing the encryption time and encryption speed of plaintext. The authenticationmechanism in Java Card TPM was designed with AES algorithm and realized by thesimulator.