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Abstract
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Article Information:
A Novel Cryptographic Key Generation Method Using Image Features
B. Santhi, K.S. Ravichandran, A.P. Arun and L. Chakkarapani
Corresponding Author: B. Santhi
Submitted: April 18, 2012
Accepted: May 23, 2012
Published: June 30, 2012 |
Abstract:
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Several methods in steganography and cryptography have been proposed for secured
communication. But many compromises are there in them. Steganography which deals with security using
multimedia has a very big disadvantage of increase in the information size. Cryptography which deals with
encryption using the keys generated by various algorithms has the disadvantage of difficulty in
remembering the key which can be easily cracked. The main objective of this study is to increase the
security in communication by encrypting the information with the key generated by using an image. This
study proposes a novel algorithm for key generation using image features. It is a reliable and flexible
method of key generation for information security. In this method the user need not remember the keys
during encryption and decryption. This study uses the Gray Level Co-occurrence matrix of an image to
extract the Gray Level Co-occurrence properties of the image. A 56-bit sub-key is generated from the
extracted Gray Level Co-occurrence properties. Then the key for encryption and decryption is generated
using the sub-key generated from the image. This proposed method is easy to implement. The key strength
is much better than others.
Key words: Decryption, encryption, gray level co-occurrence matrix, gray level co-occurrence properties, image features, information security, sub-key
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Cite this Reference:
B. Santhi, K.S. Ravichandran, A.P. Arun and L. Chakkarapani, . A Novel Cryptographic Key Generation Method Using Image Features. Research Journal of Information Technology , (2): 88-92.
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ISSN (Online): 2041-3114
ISSN (Print): 2041-3106 |
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