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Your search keyword '"Caesar cipher"' showing total 4 results
Start Over Descriptor "Caesar cipher" Journal cryptologia
4 results on '"Caesar cipher"'

1. Atbah-Type Ciphers in the Christian Orient and Numerical Rules in the Construction of Christian Substitution Ciphers.

Author

Fronczak, Maria

Subjects
*CRYPTOGRAPHY research, *CIPHERS, *GREEK alphabet, *COPTIC language, *SYRIAC language
Abstract

This article presents Christian ciphers (counterparts of the well-known Hebrew atbah cipher) used in main languages and scripts of the Christan Orient: in Greek, Coptic, and Syriac, in Late Antiquity and the Middle Ages. The article also describes other alphabetic substitution ciphers used in these languages and highlights numerical rules in their construction. [ABSTRACT FROM PUBLISHER]

Published
2013
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2. INSIDE A KGB CIPHER

Author

Daniel S. Vogel

Subjects
Theoretical computer science, Rail fence cipher, Applied Mathematics, Substitution cipher, ComputingMilieux_LEGALASPECTSOFCOMPUTING, Two-square cipher, Caesar cipher, Data_CODINGANDINFORMATIONTHEORY, Affine cipher, Computer Science Applications, Cipher, Mathematics, Block cipher, Transposition cipher
Abstract

This article is an exposition of a pencil and paper cipher used by Soviet secret agents working inside the U. S. that successfully defied the government's computer-aided attempt at cryptanalysis for several years.

Published
1990
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3. THE VARARUCHI CIPHER

Author

Subhash Kak

Subjects
Cipher, Running key cipher, Computer science, Applied Mathematics, Substitution cipher, Two-square cipher, Caesar cipher, Polyalphabetic cipher, Arithmetic, The Alphabet Cipher, Computer Science Applications, Transposition cipher
Abstract

An early Indian cipher that dates perhaps as early as 4th century A.D. is described. Basically, this cipher maps numerals into consonants; the vowels between the consonants may be used freely.

Published
1990
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4. A 77-YEAR OLD CHALLENGE CIPHER

Author

Louis Kruh

Subjects
Computer science, Applied Mathematics, Substitution cipher, Two-square cipher, Caesar cipher, Polyalphabetic cipher, Computer security, computer.software_genre, Computer Science Applications, law.invention, Playfair cipher, Cipher, Running key cipher, law, Data_GENERAL, Hardware_ARITHMETICANDLOGICSTRUCTURES, computer, Transposition cipher
Abstract

In 1915 First Lt. Joseph O. Maubourgne, later MG Maugorne and Chief Signal Officer, 1937–1941, presents a simple substitution cipher challenge to the Army Signal School. He proposes a test to determine if his new cryptosystem should replace the Cipher Disk and Playfair Cipher then in use.

Published
1993
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