From Number Theory to Secret Codes

This text/software package shows how a knowledge of number theory can be used to write messages in a secret form. For those with secrets but no interest in number theory, the cryptographic section can easily be used to encipher & decipher messages without any knowledge of number theory. The rest of the text & programs explain all the mathematics required to understand why the cryptographic system works. A knowledge of arithmetic is required but no calculus is needed. Exercises & examples are provided throughout the text. Suitable for advanced secondary school & undergraduate students of mathematics & teachers of mathematics, particularly of number theory. Software: available on 3.5" disks for IBM compatible machines.Jackson, T. is the author of 'From Number Theory to Secret Codes' with ISBN 9780852740774 and ISBN 0852740778.