Anonymous Conference Key Distribution Scheme with Perfect Forward Security
Most anonymous Conference Key Distribution (CKD) systems cannot provide forward security, which is a very important property. Even though some CKD systems provide that property, they can only provide partial forward security, not perfect forward security. An identity-based CKD scheme with user anonymity is proposed in this paper. Under the one-way hash (OWH) 1 and bilinear Diffie-Hellman (BDH) 2 cryptographic assumptions, the proposed scheme is secure against passive attacks, impersonation attacks and conspiracy attacks. Moreover, by distributing a random number to the participants through the Private Key Generator (PKG), this scheme provides perfect forward security, that is, even if the private keys of all the participants (including the chairman) are compromised, the conference key contributed by the chairman in the past will not be compromised.
Business flow UDDI enterprise application integration
LI Fang GAO Huanzhi
Century College Beijing University of Ports and Telecommunications Beijing, China General Research Insritute For Nonferrous Metals Beijing, China
国际会议
武汉
英文
1004-1007
2009-11-18（万方平台首次上网日期，不代表论文的发表时间）