ENHANCING SECURITY OF CAESAR CIPHER USING DIFFERENT METHODS
Anupama Mishra · International Journal of Research in Engineering and Technology · 2013
Cryptography is an art and science of converting original message into non readable form.There are two techniques for converting data into no readable form:1)Transposition technique 2)Substitution technique.Caesar cipher is an example of substitution method.As Caesar cipher has various limitations so this talk will present a perspective on combination of techniques substitution and transposition.In this paper I have focused on the well known classical techniques the aim was to induce some strength to these classical encryption for that purpose I blended classical encryption with the some more techniques.my proposed method showed that it is better in terms of providing more security to any given text message.In our experiments I took Caesaer Ciphers as representatives of Classical Techniques.To make it more secure I have used some techniques like I have used multiple level Row Transposition Ciphers, encryption with same key at each level and encryption with different key at each level.