Mahendra Kumar Sahu, Mohd. Shajid Ansari
Abstract: Cryptography play an important role in secure communication and it offer an admirable solution to compromise the necessary protection against the data intruders. As the use digital techniques for communicating, it becomes a key issue that how to keep the confidentiality, integrity and authenticity of data. There are various techniques, which discovered from time to time to encrypt the data to make it more secure.
Keywords: Cryptography, cipher, encryption, decryption, symmetric key, asymmetric key