学术讲座【Subset Membership Encryption and Its Applications to Oblivious Transfer】

时间：2014年12月25日(星期四)下午15：00

地点：仓山校区成功楼603报告厅

主讲：澳大利亚卧龙岗大学  穆怡教授

主办：数学与计算机科学学院、福建省网络安全与密码技术重点实验室

专家简介：Professor Yi Mu received his PhD from the Australian National University in 1994. He currently is a full professor, Head of School of Computer Science and Software Engineering and the director of Centre for Computer and Information Security Research at University of Wollongong, Australia. He is currently a MingJiang Scholar of Fujian Normal University. Prior to joining University of Wollongong, he was a senior lecturer in the Department of Computing, Macquarie University. He also worked in Department of Computing and IT, University of Western Sydney as a lecturer. He has been with the University of Wollongong since 2003. His current research interest includes cryptography, network security and computer security. He has published over 350 research papers. He has served as program chair and member of program committee over 200 conferences including ACM CCS, ESORICS, ACISP, AisaCCS, etc. and is currently a member of the steering committees of AsiaCCS, CANS and ProvSec. Professor Yi Mu is the editor-in-chief of International Journal of Applied Cryptography and serves as associate editor for nine other international journals. He is a senior member of the IEEE and a member of the IACR. Further information about Professor Mu can be found at http://www.uow.edu.au/~ymu

报告摘要：In this talk, a novel cryptographic notion called subset membership encryption (SME)will be presented. Intuitively, given a system parameter generated by an encryptor (Alice), a decryptor (Bob) generates a randomized privacy-preserved attribute token P(G) from a set of attributes G. A message is encrypted using an attribute set A chosen by Alice and P(G) provided by Bob. It requires that A is the subset of G for Bob to decrypt the message. A very efficient SME scheme will be presented, where both the size of P(G) and ciphertext are short and independent of G and A. The scheme offers three useful and practical applications: oblivious transfer, priced oblivious transfer and restricted priced oblivious transfer.