Abstract: In recent years network security has become an important issue. Cryptography has been used to secure data and control access by sharing a private cryptographic key over different devices. Cryptography renders the message unintelligible to outsider by various transformations Data Cryptography is the scrambling of the content of data like text, image, audio and video to make it unreadable or unintelligible during transmission. Its main goal is to keep the data secure from unauthorized access.