FOR IMMEDIATE RELEASE 6 February 1997 Aegean Park Press proudly announces publication of CLASSICAL CRYPTOGRAPHY COURSE - VOLUME II by Randall K. Nichols [LANAKI]. [ISBN: 0-89412-264-9, 1997, 464 pages, $US 40.80 ] Volume II presents Lectures 11 - 22 (of a total of twenty five) from his successful course in Classical Cryptography taught in 1995 and 1996 to 391 students via the Internet and an additional 65 via regular mail. Volume II covers polyalphabetic substitutions ciphers in the Vigenere family (Viggy, Variant, Beaufort, Porta, Gronsfeld, Portax, Gromark), decimation, principles of symmetry, isologs and superimposition solution techniques. Volume II describes the difficult aperiodic cipher systems (Interrupted key, Autoclave, Progressive, Running Key used in cipher machines) and their analysis by isomorphs, and repetitions. Cryptarithm solutions for extended bases are presented. The theory of coincidences and statistical attacks (Kappa, Chi, Phi) derived from this important theory are detailed. Transposition theory and a variety of transposition ciphers are solved (Columnar, Amsco, Myszkowski, Cadenus, Grille, Swagman, Auto-Transposition). Volume II has two chapters on the difficult cipher systems invented by the famous French cryptographer Delastelle: Foursquare, Bifid and Trifid. Volume II presents a detailed chapter on passwords, law and data protection. Volume II ends with a historical look at codes, commercial code systems, and famous cipher machines. Volume II is a potpourri of advanced topics in classical cryptography. The Cryptographic Resources and References section has been expanded to cover all phases of involvement with cryptography: cryptanalysis, history, legal, social, classical, modern, NSA, mathematical techniques, recreational, intelligence, tactical, strategic, National Defense, INFOSEC: offensive and defensive, hardware, software, standards, public key cryptography, web sources, and applicable Senate and House bills. Readers are encouraged to expand their knowledge in the many directions possible to them through this section. For orders or Information Contact: Aegean Park Press, P.O. Box 2837, Laguna Hills, Ca. 92654. Telephone: 1-800-736-3587; Fax: 1-714-586-8269. Group discounts available. REVIEW OF CLASSICAL CRYPTOGRAPHY COURSE, VOLUME I By the Honorable David Kennedy, Director of Research, NCSA. Classical Cryptography Course, Volume I. By Randall K. Nichols; published by Aegean Park Press, (714) 586-8811 (phone) (714) 586-8269 (fax); (800) 736 - 3587; 301 pages (with index); $34.80 (American Cryptogram Association members receive a 20% discount through ACA or NCSA Members receive a 10% discount if purchased from the NCSA Bookstore) In Classical Cryptography Course, Volume I, author Randall K. Nichols has created a benchmark for serious students of the science of cryptography. This is a text. It is for learning, and with it one cannot help but learn about the foundations of the science. An outgrowth of Nichols' admitted "labor of love" in the online Cryptography Courses he teaches over the Internet, Volume I creates the foundation for understanding the development of the science. The ten chapters of this volume lead the student through simple substitutions, substitutions with variants, multiliteral substitutions, xenocrypts (foreign language substitutions), cryptarithms, the Enigma machine (separate Enigma95 program disk available direct from the author) and finally to polyalphabetic substitutions. Seven chapters conclude with problems; solutions and discussions are provided in an appendix. The text is indexed with twenty-four pages of references for further study. I found Nichols' sense of the history of cryptography particularly noteworthy. The volume is liberally salted with citations from history with applications of the methods developed in the text. From Revolutionary France through the American Civil War, the Tammany Hall scandal, Revolutionary Soviet ciphers and Japanese successes against Chinese codes prior to Pearl Harbor, the text provides touchstones for student to understand and relate to. Phil Zimmermann observed in the documentation to his Pretty Good Privacy Program to "Beware of Snake Oil." Among his arguments is this anecdote: I remember a conversation with Brian Snow, a highly placed senior cryptographer with the NSA. He said he would never trust an encryption algorithm designed by someone who had not "earned their bones" by first spending a lot of time cracking codes. Where Schneier's Applied Cryptography is a crash course in some encryption protocols and algorithms in use today, Nichols' text begins the teaching of Snake Oil detection and prevention. Learning the fundamentals, developed throughout the text, brings a richer understanding of the science, it's history and insight into it's possibilities and some vulnerabilities lurking for the unwary. Nichols plans for release Volume II in the series with advanced material on from the online course which includes statistical attacks and transposition in February, 1997. Reviewer: Dave Kennedy, CISSP, is Director of Research for the National Computer Security Association, Carlisle, PA. He is a retired Army military police officer and member of NCSA, ASIS, ISSA and the Computer Security Institute.