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An Improved Cryptographic Technique to Encrypt Images using Extended Hill Cipher

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International Journal of Computer Applications
© 2013 by IJCA Journal
Volume 83 - Number 13
Year of Publication: 2013
Authors:
Yashpalsingh Rajput
A K. Gulve
10.5120/14506-2326

Yashpalsingh Rajput and A K Gulve. Article: An Improved Cryptographic Technique to Encrypt Images using Extended Hill Cipher. International Journal of Computer Applications 83(13):4-8, December 2013. Full text available. BibTeX

@article{key:article,
	author = {Yashpalsingh Rajput and A K. Gulve},
	title = {Article: An Improved Cryptographic Technique to Encrypt Images using Extended Hill Cipher},
	journal = {International Journal of Computer Applications},
	year = {2013},
	volume = {83},
	number = {13},
	pages = {4-8},
	month = {December},
	note = {Full text available}
}

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.

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