Computational Intelligent Security in Wireless Communications

11 Cryptography Techniques for Information SecurityA Review

Ganesh Chandra, Satya Bhushan Verma, and Abhay Kumar Yadav

DOI: 10.1201/9781003323426-11

Contents

11.1 Introduction

11.2 Literature Review

11.3 Cryptography Techniques

11.3.1 Substitution Technique

11.3.1.1 Caesar Cipher

11.3.1.2 Mono Alphabetic Ciphers

11.3.1.3 Homophonic Cipher

11.3.1.4 Polyalphabetic Cipher

11.3.1.5 Playfair Cipher

11.3.2 Transposition Technique

11.3.2.1 Rail Fence Technique

11.3.2.2 Simple Columnar Technique

11.4 Discussion

11.5 Conclusion

References

11.1 Introduction

The word “cryptography” was coined by Leon Battista Alberti around AD 1467; it is a Greek word which means “secret writing” and it provides secure communication between the participants.

In the ...