題名: An Improvement of the Design of Integrating Subliminal Channel with Access Control
作者: Chang, C. C.;Wu, C. C.
日期: 2006-12
上傳時間: 2009-12-17T06:58:12Z 出版者: Asia University
摘要: Recently, Lee and Yang proposed a subliminal scheme which employs an access control in a hierarchy. In their scheme, chief users use a one-way hash function to compute their subordinates'secret keys with low
computation efficiency. And we also find some drawbacks, which are potential loopholes of the security. In this paper, we will show that their scheme suffers inside malicious user attack. And, accordingly, we will present an improved scheme to enhance the security against this flaw.