Abstract:

Embedded systems have increasingly extensive applications in all fields. However, traditional security enhancement methods are unable to deal with various security issues. How to enhance the security of embedded systems becomes an urgent problem to be solved. In order to improve the security of embedded systems and promote their applications, we design and implement a trusted computing platform framework based on virtual trusted cryptography module, and the virtual trusted cryptography module and the trusted enhancement technology based on it are realized. We also propose and implement a session authentication method based on the virtual trusted cryptography module, extending the trust chain from the hardware operating system layer to the application software layer in the virtual domain. Experimental results show that the combination of the virtual trusted cryptography module and the physical trusted cryptography module can effectively ensure the security of embedded systems, virtual domains and applications.

Key words: trust chain, virtualization, trusted cryptography module