9781568812984 | Workbook edition (A K Peters Ltd, September 8, 2006), cover price $19.95 |
About this edition: This workbook, which accompanies The Cryptoclub, provides students with problems related to each section to help them master the concepts introduced throughout the book.
9781568812236 | A K Peters Ltd, August 14, 2006, cover price $39.00 |
About this edition: Introduces the mathematical concepts and history behind cryptography and provides practice exercises that use known ciphers and encourage the creation of new ones.