Certified Email Delivery with Offline TTP
Hao Henry Wang, Yuyi Ou, Jie Ling, Liang Lu, Xiang Hua Xu · 2007
Email has become a standard communication method nowadays. But when it comes to important correspondences containing sensitive governmental, commercial or medical information, certified delivery is required. We present in this paper a new certified email protocol which assures fair delivery, non-repudiability, confidentiality and timeliness. To achieve definite fairness, an offline TTP is employed which will be involved only if there is a dispute.