Certified Email Delivery with Offline TTP. - Hao Wang 003; Yuyi Ou; Jie Ling 002; Lu Liang; Xiang Xu (IAS, 2007)

A New Certified Email Protocol. - Hao Wang 003; Yuyi Ou; Jie Ling 002; Xiang Xu; Heqing Guo (DEXA Workshops, 2007)