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Steganography, Cryptography, Watermarking: A Comparative Study

Hardikkumar V. Desai

The definitions of passing data from one side to other side by a traditional way is been changed due to Internet and Communication Technology. Development is so much fast so the issue lies of security and integrity of data. Now a day’s digital communication has become an essential part of (passing data), There are so many Internet application is used to communicate secretly. As a result, the security of information against unauthorized access has become a prime objective. This leads to lots of development of various techniques for data hiding. Steganography, Cryptography and Water marking are the popular techniques available to hide data securely.