William and Elizebeth Friedman were both researchers in cryptography at The Riverbank Laboratories. This 1957 book is the result of an insightful report that won the Friedmans the Folger Shakespeare Library literary prize. Within it, the Friedmans address theories, which, through the identification of hidden codes, call the authorship of Shakespeare's plays into question. As ciphers were abundantly used in the sixteenth century, such coding is far from impossible. Accordingly, this work gives a fair and scientific hearing to those anti-Stratfordians whose theories were often dismissed completely. The Friedmans document the history and foundations of such theories, before thoroughly examining and critiquing a great number of them. Indeed, it has even been suggested that this text itself contains ciphers, making it of even greater interest to scholars of literary codes and cryptography, as well as those wishing to discover more about the various debates surrounding the authorship of Shakespeare's plays.

The Shakespearean Ciphers Examined: An analysis of cryptographic systems used as evidence that some author other than William Shakespeare wrote the plays commonly attributed to him

Literature & Fiction

FRIEDMAN, William F.

Friedman, Elizabeth S.

British & Irish

Cambridge University Press

Text provides a foundation for the study of cryptography. Written in simple, easy to understand language, text is divided into three parts: General, Cipher Systems, Code Systems. Methods of preparing keys are illustrated. Errors and their corrections are discussed. Text sets forth a number of vital precautions to be observed in safeguarding cryptographic systems and cryptograms from enemy cryptanalysis.

Elementary Military Cryptography

History

Military

Aegean Park Pr

Transposition and substitution systems are discussed on a general higher level. Attention is likewise devoted to combined substitution and transposition methods. Cryptographs and their limitations are described. Code systems are treated with emphasis on enciphered code systems. A section of the text is devoted to cipher machines, with discussion as to their importance, types of machines, and advantages and disadvantages of cipher machines.

Advanced Military Cryptography (Cryptographic Series, 8)

This book provides an excellent foundation for solving cipher systems. The text describes the fundamental principles of cipher solution plus use of the unilateral frequency distribution in the solution process is covered in some detail. Various unilateral and multilateral systems are carefully discussed. In addition, the text introduces the student to the solution of digraphic substitution ciphers, including the solution of the Playfair Cipher. Numerous problems are provided for solution by the student.

Military Cryptanalysis, Part I, Monoalphabetic Substitution Systems (Cryptographic Series, C-30)

The text provides a detailed discussion of polyalphabetic substitution cipher systems plus the theory of the solution of repeating-key systems. Theory of indirect symmetry of position in secondary alphabets is discussed, as well as the application of principles of indirect symmetry of position. Text includes problems for the student plus computer programs written in BASIC.

Military Cryptanalysis, Part II, With Added Problems and ComputerPrograms (Cryptographic Series, C-40)

First published in 1956 as a classified text by the U.S. Government, this book discusses the analysis of unilateral, multilateral, and polygraphic systems, as well as the use of isologs, pattern-words, etc. The use of the international (Baudot) teleprinter code and the Morse code in cryptography is also covered. It is particularly thorough in its analysis of four-square, two-square, and the Playfair Cipher system. Cryptosystems employing irregular-length cipher units, monome-dinome systems, are covered in depth.

Military Cryptanalytics (Cryptographic Series)

Callimahos, Lambros D.

This volume contains important appendices for Military Cryptanalytics, Part I, Vol. 1, plus several added BASIC computer programs. Appendices contain material on concealment systems, communication intelligence operations, principles of cryptosecurity, plus numerous problems for the student. The text contains a large amount of frequency data concerning English, word and pattern lists, and also letter frequency data concerning the German, French, Italian, Spanish, Portuguese, and Russian languages.

Military Cryptanalytics, Part I, Volume 2

This volume contains the appendices for Military Cryptanalytics, Part II, Vol. 1, plus several especially added BASIC computer programs. One appendix contains the well-known Zendian Problem, an Exercise in Communication Intelligence Operations. Others concern Traffic Analysis; the Hagelin Machine, type C-38; Wired-rotor Machines; and the B-211 Cipher Machine, plus paragraphs on ciphony, cifax, and civision systems.

Military Cryptanalytics: Includes Problems and Computer Programs (Cryptographic Series)

Military Cryptanalytics, Part 1

World

See the best price to sell, buy, or rent books by FRIEDMAN, William F.. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Books by FRIEDMAN, William F.

See the best price to sell, buy, or rent books by FRIEDMAN, William F.. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

The Shakespearean Ciphers Examined: An analysis of cryptographic systems used as evidence that some author other than William Shakespeare wrote the plays commonly attributed to him

The Shakespearean Ciphers Examined: An analysis of cryptographic systems used as evidence that some author other than William Shakespeare wrote the plays commonly attributed to him

Elementary Military Cryptography

Advanced Military Cryptography (Cryptographic Series, 8)

Military Cryptanalysis, Part I, Monoalphabetic Substitution Systems (Cryptographic Series, C-30)

Military Cryptanalysis, Part II, With Added Problems and ComputerPrograms (Cryptographic Series, C-40)

Military Cryptanalytics (Cryptographic Series)

Military Cryptanalytics, Part I, Volume 2

Military Cryptanalytics: Includes Problems and Computer Programs (Cryptographic Series)

Military Cryptanalytics, Part 1