Design And Implementation Of Remote Anonymous Attestation Scheme Based On Ring Signature

With the rapid development of Information Technology, more and more computing resources are connected and shared on Internet. The more we depend on Internet, the more risks we will take on. And to defeat the various security issues, experts are always doing broad research on security, establishing a lot of standard around security and also producing many related products. All of these push the computing into a high level.In the meanwhile, information security systems are becoming more and more complex and chaos. We can't easily resolve the security issues with the traditional methods, such as firewall, intrusion detection system. It turns out that the security of terminal is more important because the terminal is the essence of the Internet. The security of terminal is a new direction. The concept of Trusted Computing formed by Trusted Computing Group is gaining more importance in the modern IT world, which also follows this new direction.Trusted Computing Group proposed some remote attestation protocols, such like PCA, DAA, to help terminals check the others'identities and Reliability. But these protocols have some drawbacks in anonymity, feasibility, efficiency.In this paper, firstly, we introduce the concept, development and related technologies of trusted computing, and then introduce the basic knowledge of cryptography and digital signature. On this basis, a detailed analysis for the existing remote attestation scheme is carried out. At last, we proposed a new Remote Anonymous Attestation Scheme Based on Ring Signature. It can be proved that, the new protocol can fully protect the privacy and anonymity of the terminals. In the meanwhile, it is more efficient, more concise than protocols above.