Jose Antonio Onieva Javier Lopez Jianying Zhou Secure Multi-Party Non-Repudiation Protocols and Applications 43 2009 1-47 Springer Advances in Information Security http://dx.doi.org/10.1007/978-0-387-75630-1 http://dx.doi.org/10.1007/978-0-387-75630-1 978-0-387-75629-5