International Journal of Computer Applications
Cryptography is the science of encrypting the information so that it is rendered unreadable for an intruder. Cryptographic techniques are of utmost importance in today's world as the information to be sent might be of invaluable importance to both the sender and the receiver. Various cryptographic techniques ensure that even if an intruder intercepts the sent information, the user is not able to decipher it thus render ending it useless for the intruder. Cryptography can be grouped into two types that is symmetric key cryptography and asymmetric key cryptography.