Research And Application Of Ring Signature Arithmetic In MANETs

Ad Hoc networks need to have some features,such as free organizing,securityauthentication and digital signature without cooperating,and anonymity.In order to solvethe problem,such as large calculation,being threaten by adaptive chosen ciphertextattacks, chosen plaintext attacks, and collusion attacks effectively.According to analysisof latest development of digital signature,especially ring signature,and combining withidentity based cryptosystem(IBC),we propose new signature schemes,which are moresuitable for Ad Hoc networks.This paper carries out the research in the following aspects:1.We have introduced the basis mathematics theory that associated with this article,ranging from basic number theory,group,ring and knowledge of digital signatures,thenbriefly summary of the digital signatures research and development status.2.We introduce the basic principles and various features of ring signatures, analyzeand summarize the method of ring signature scheme design, and also point out that thedigital signature technology is one of the key technologies of Ad hoc networks,outlinedseveral specific digital signatures.3.We introduce several typical ring signature schemes with strict formal securityproofs, and also discuss the Proxy Ring Signature,and then propose an improvedsignature scheme with strict formal security proofs. Then, It makes use of theidentity-base and constructs an efficient, ID-based ring signature scheme.4. By means of analysis on the ring signature schemes of Zhang-Kim,proposed anew ring signature schemes on the basis of identity-base and pairings signature scheme.Finally, a fair protocol ring signature scheme without the third party based onconcurrent signatures is presented.And we give the strict formal security proofs.