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An Improved Cryptographic Technique to Encrypt Images using Extended Hill Cipher
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 83 - Number 13 |
| Year of Publication: 2013 |
| Authors: Yashpalsingh Rajput, A K. Gulve |
10.5120/14506-2326
|
Yashpalsingh Rajput, A K. Gulve . An Improved Cryptographic Technique to Encrypt Images using Extended Hill Cipher. International Journal of Computer Applications. 83, 13 ( December 2013), 4-8. DOI=10.5120/14506-2326
Abstract
This work proposes an improved scheme to encrypt the digital image for its security. The proposed system is divided into 3 main phases. In first phase, the single digit number into which the given digital image can be divided is calculated. In the second phase, bit rotation, reversal & randomization method is applied on each block of the image. In the third phase, the extended hill cipher technique is applied on the image which is an output of second phase. At the receiver end, if the receiver has appropriate decryption key, he can generate the image similar to the original image. This paper is organized into following sections. Section 1 contains a general introduction to the cryptography, image encryption and hill cipher. Section 2 contains literature review on some existing image encryption research papers. Section 3 contains description of the proposed system. Finally paper is concluded in the Section 4.
References
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