AI and Author-ID Security

The AI and author-ID security programs covered in the Nov 17 Science article are described in detail at: <http://www.cs.purdue.edu/coast/coast.html> Active Defense of a Computer System Using Autonomous Agents Mark Crosbie and E. H. Spafford; Department of Computer Sciences, Purdue University; CSD-TR-95-008; 1995. Defending a Computer System Using Autonomous Agents Mark Crosbie and E. H. Spafford; Department of Computer Sciences, Purdue University; CSD-TR-95-022; 1995. Authorship Analysis: Identifying the Author of a Program Ivan Krsul; Department of Computer Sciences, Purdue University; MS Thesis; CSD-TR-94-030; 1994.