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2. Cryptography Tata McGraw Hill Education Private Limited;Atul Kahate;Network Security New Delhi,2008
3. Cryptography and Network Security Principles and Practice, Fifth EditionPearson Education,Inc.,publishing as Prentice Hall;Wiliam Stalling;USA,2011
4. Survey on Cryptography and Steganography Methods for Information Security;Kallam Ravindra Babu;International Journal of Computer Applications (0975-8887) Volume,2010