1. C. Adams, P. Cain, D. Pinkas, R. Zuccherato, Time-stamp Protocol (TSP), IETF, August 2001, Request for Comments (RFC) 3161.
2. M. Baer, R. Charlet, W. Hardaker, R. Story, C. Wang, IPsec policy configuration MIB, IETF Internet Draft, July 2002. Available online at http://www.ietf.org/internet-drafts/draft-ietf-ipsp-ipsec-conf-mib-03.txt.
3. M. Blaze, J. Feigenbaum, J. Ioannidis, A. Keromytis, The KeyNote Trust Management System, Version 2, September 1999, Request for Comments (RFC) 2704.
4. O. Cánovas, A.F. Gomez, A distributed credential management system for SPKI-based delegation systems, in: Proceedings of the First Annual PKI Research Workshop, Gaithersburg, MD, April 2002.
5. O. Cánovas, A.F. Gomez, G. Lopez, G. Martinez, Dynamic virtual private networks, in: Proceedings of the 2000 SCS Euromedia Conference, Antwerp, Belgium, May 2000.