International Journal of Computer and Communication System Engineering (IJCCSE)
Cryptography is branch of computer science which deals with transforming the simple plain text into an unreadable form. Technically, cryptography is the study of mathematical formulas and techniques that are concerned with security of information like confidentiality, authentication, data integrity etc. Cryptography is being used by mankind in order to successfully transmit secret message without being caught by the enemies. From the ancient times to this modern world cryptography has evolved rapidly. This paper discusses the various cryptographic techniques being used in the modern world along with its applications.