데이터 손실에 강하고 효율적 연산을 지원하는 XOR 체인을 이용한 트리기반 μTESLA 프로토콜 개선

Abstract

μTESLA broadcast authentication protocol have been developed by many researchers for providing authenticated broadcasting message between receiver and sender in sensor networks. Those cause authentication delay Tree-based μTESLA[3] solves the problem of authentication delay. But, it has new problems from Merkel hash tree certificate structure. Such as an increase in quantity of data transmission and computation according to the number of sender or parameter of μTESLA chain. μTPCT-based μTESLA[4] has an advantages, such as a fixed computation cost by altered Low-level Merkel has tree to hash chain. However, it only use the sequential values of Hash chain to authenticate μTESLA parameters. So, It can't ensure the success of authentication in lossy sensor network. This paper is to propose the improved method for Tree-based μTESLA by using XOR-based chain. The proposed scheme provide advantages such as a fixed computation cost with μTPCT-based μTESLA and a message loss-tolerant with Tree-based μTESLA.