International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Cryptography is the art and science of encoding messages from readable format to non readable format. In terms of data and telecommunications, cryptography plays an important role when the people communicate over any untrusted medium like internet. In this paper, the authors have given an overview about cryptography and its various techniques which are used for converting a readable text into non readable text and thus make data more secure. To increase security they use such type of techniques and study of this is called cryptography.