1. Herda, S.: Non-repudiation: constituting evidence and proof in digital cooperation. Comput. Stand. Interf. 17(1), 69–79 (1995)
2. Cox, B., Tygar, D., Sirbu, M.: NetBill security and transaction protocol. In: Proceedings of USENIX Workshop on Electronic Commerce, pp. 77–88, July 1995
3. Zhou, J., Gollmann, D.: A fair non-repudiation protocol. In: Proceedings of the IEEE Symposium on Security and Privacy, pp. 55–61, May 1996
4. Zhou, J., Gollmann, D.: An efficient non-repudiation protocol. In: Proceedings of the IEEE Computer Security Foundations Workshop, pp. 126–132, June 1997
5. Markowitch, O., Roggeman, Y.: Probabilistic non-repudiation without trusted third party. In: Proceedings of the Conference on Security in Communication Networks, September 1999