The Exponential Security System TESS: An Identity-Based Cryptographic Protocol for Authenticated Key-Exchange (E.I.S.S.-Report 1995/4). H. Danisch. August 1995. http://www.faqs.org/rfcs/rfc1824.html
EDI Meets the Internet Frequently Asked Questions about Electronic Data Interchange (EDI) on the Internet. W. Houser, J. Griffin, C. Hage. January 1996. http://www.faqs.org/rfcs/rfc1865.html