vioft2nntf2t|tblJournal|Abstract_paper|0xf4ff8cf40e0000000fee000001000a00 The Security of data on internet has become a prior thing. Though any message is encrypted using a stronger cryptography algorithm, it cannot avoid the suspicion of intruder. This paper proposes an approach in such way that, data is encrypted using Extended Substitution Algorithm and then this cipher text is concealed at two or three LSB positions of the carrier image. This algorithm covers almost all type of symbols and alphabets. The encrypted text is concealed variably into the LSBs. Therefore, it is a stronger approach. The visible characteristics of the carrier image before and after concealment remained almost the same. The algorithm has been implemented using Matlab.
R.S. Gutte1, Y.D. Chincholkar2 and P.U. Lahane3
1Dnyanganga College of Engineering and Research, India,2Sinhgad College of Engineering, India,3
RMD Sinhgad School of Engineering, India
Steganography, Cryptography, Encryption, Decryption, Extended Square Substitution Algorithm
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| Published By :
ICTACT
Published In :
ICTACT Journal on Communication Technology
( Volume: 4 , Issue: 1 , Pages: 685-690 )
Date of Publication :
March 2013
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396
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