II.  What PKI Does - The Killer Apps

A.  Digital Signatures 

Digital Signatures authenticate the identity of the sender and give assurance of message integrity, and thus can provide a system of non-repudiation.

Cruellas, Juan Carlos  <University Politecnica de Catalunya, Spain> , Kesterson, Hoyt L. II <Bull Worldwide Information Systems, hoyt.kesterson@bull.com> , Medina, Manuel  <University Politecnica de Catalunya, Spain, medina@ac.upc.es>  and Rubia, Montse  <University Politecnica de Catalunya, Spain, montser@ac.upc.es> , " EDI and Digital signatures for Business to Business Electronic Commerce," 38 Jurimetrics 497(ABA Section of Science & Technology Spring 1998)

  April 30, 1998 - Speech Handout, "Proof of WHO, WHAT and WHEN in Electronic Commerce Under the Digital Signature Guidelines," by Chas Merrill of McCarter & English, for the Grand Cayman Islands Conference on Electronic Commerce, April 30, 1998.
Guideline 5.6 of Digital Signature Guidelines provides for a rebuttable presumption that the signature was made by Alice.  This piece, used by Merrill for a series of presentations about the DSG during 1997 and 1998, discusses how the presumption might be rebutted.  Merrill was Co-Reporter (with Alan Asay of the Digital Signature Trust Company, and Joe Wackerman of the U.S. Postal Service) of the DSG published in 1996.

August 1, 1996 - ABA Information Security Committee (of ABA Section of Science and Technology) publishes Digital Signature Guidelines, the first comprehensive legal/technical study of PKI.
See the PKI Tutorial at http://www.abanet.org/scitech/ec/isc/dsg-toc.html and the free download at http://www.abanet.org/scitech/ec/isc/dsgfree.html.