TY - BOOK AU - Bauer,Craig P. TI - Secret history: the story of cryptology T2 - Discrete mathematics and its applications SN - 9781466561861 AV - QA76.9.A25 B384 2013 U1 - 005.8/2 23 PY - 2013///] CY - Boca Raton PB - CRC Press, Taylor & Francis Group KW - Data encryption (Computer science) KW - Computer security KW - Cryptography KW - History KW - Ciphers KW - COMPUTERS / Security / Cryptography KW - bisacsh KW - MATHEMATICS / General KW - MATHEMATICS / Combinatorics N1 - Includes bibliographical references and index N2 - "Codes are a part of everyday life, from the ubiquitous Universal Price Code (UPC) to postal zip codes. They need not be intended for secrecy. They generally use groups of letters (sometimes pronounceable code words) or numbers to represent other words or phrases. There is typically no mathematical rule to pair an item with its representation in code. A few more examples will serve to illustrate the range of codes"-- ER -