This workbook, which accompanies The Cryptoclub, provides students with problems related to each section to help them master the concepts introduced throughout

Join the Cryptokids as they apply basic mathematics to make and break secret codes. This book has many hands-on activities that have been tested in both classro

A modern classic by an accomplished mathematician and best-selling author has been updated to encompass and explain the recent headline-making advances in the f

An introduction to the basic mathematical techniques involved in cryptanalysis.