iKP: a family of secure electronic payment protocols
Mihir Bellare, Juan A. Garay, Ralf C. Hauser, Amir Herzberg, Hugo Krawczyk, Michael Steiner, Gene Tsudik, Michael Waidner · 1995
This document outlines our model of the electronic payment and addresses the requirements of the parties involved -- including their legal/contractual obligations. After first introducing the key management architecture, the three protocols are presented and evaluated. 2.1 Model