Advance Encryption and Decryption Technique using Multiple Symmetric Algorithm
Taranpreet Singh Ruprah    
Journal of Information Security Research, Vol. 7, No. 2, 2016.
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Abstract:
This paper proposes the new algorithm for encrypting the plain text into the cipher text. In this algorithm we combine different symmetric algorithm into one algorithm with little change in those algorithm. All the traditional algorithm are very week and cryptanalysis easily cracked the cipher text and convert that cipher text into the plain text. In this encryption algorithm, a new concept of substitution technique i.e. Caesar Cipher & Hill Cipher are combine along with the transposition technique i.e. Rail fence technique are used to make more secure and stronger algorithm. The plain texts are encrypted in such a way, so that it will difficult for cryptanalyst to crack it. The proposed algorithm is divided into three Phases. In the first phase the plain text is Encrypted using Substitution technique called Caesar Cipher, In the Second phase the first encrypted text are applied for Second Substitution technique i.e. Hill cipher. In the Third phase the Transposition Technique i.e. Rail Fence technique is applied in the Second encrypted text and the cipher text is generated, At the Receiver side if the receiver uses appropriate key they will convert the cipher text into the plain text.