报 告 人：Man Ho Allen AU 香港理工大学
报告题目：Optimistic Fair Exchange Revisited
时 间：2015年3月30日 (星期一)下午 15:00
地 点：成功楼603报告厅
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
参加对象：数计学院相关老师和学生
报告摘要：Optimistic fair exchange (OFE) is a type of cryptographic protocols aimed at solving the fair exchange problem over open networks with the help of a third party to settle disputes between exchanging parties. It is well known that a third party is necessary in the realization of a fair exchange protocol. However, a fully trusted third party may not be available over open networks.
In response to this issue, recent OFE constructions also consider the security when the third party, often known as the arbitrator, is dishonest in a certain sense. In this talk, we present our recent findings on OFE when we consider the case when the arbitrator could collude with one of the participating parties.
专家简介：Man Ho Au于2009年7月获得澳大利亚Wollongong大学计算机专业博士学位，现为香港理工大学电子计算学系助理教授，博导。研究方向包括密码技术、公钥密码学、隐私保护等。 在包括ACM TISSEC, IEEE Transactions on Information Security, IEEE Transactions on Knowledge and Data Engineering, IEEE Transactions on Computers, IEEE Systems Journal等国际学术期刊 和 ACM CCS (2012, 2008, 2007)、NDSS (2012)、ESORICS (2012, 2010)等顶级的国际会议上发表学术论文80多篇。他的个人主页为：