Steganographic access control in data hiding using run‐length encoding and modulo‐operations. Issue 2 (16th June 2011)

• Record Type: Journal Article
• Authors: Lee, Chin‐Feng; Weng, Chi‐Yao; Sharma, Aneesh
• Is Part Of: Security and communication networks. Volume 9:Issue 2(2016)
• Page Start: 139
• Page End: 148
• Publication Date: 2011-06-16
• Subjects: cover image -- access control -- embedding capacity -- image fidelity -- run‐length encoding -- logical exclusive‐OR; Computer networks -- Security measures -- Periodicals; Computer security -- Periodicals; Cryptography -- Periodicals; 005.805
• DOI: 10.1002/sec.333
• Languages: English
• ISSNs: 1939-0114

Abstract

Abstract: The vast potential of information and communication technologies such as computer‐based communication networks and telecommunication systems is indeed blooming innovations. This paper is a novel attempt in the field of authorization and access control, which uses steganography that coverts the data into a form that cannot be interpreted by unauthorized persons. The proposed algorithm transfers compressed data and hides it into a cover medium by improvising existing run‐length technique in steganography. It deals with a compression technique that uses the redundancy feature of a bitstream and then uses this compressed stream to embed data in an image. The run‐length encoding technique is exploited to compress a bitstream being embedded in a cover image. However, run‐length encoding method has inefficient compression like the sharp bitstreams, such as the pattern "101010101". This study developed a novel high‐capacity steganographic access control in data hiding to transform sharp bitstreams into smooth bitstreams before it is hidden into a cover image. Our scheme performs the logical Exclusive‐OR (XOR) operation to smoothen the secret bitstream and to embed the result into a cover medium. Additionally, the proposed scheme employs generalized difference expansion transform for image recovery after data extraction; consequently, the image fidelity can be preserved. The experimental results show that our scheme owns a higher embedding capacity than previous approaches while maintaining high image quality. Copyright © 2011 John Wiley & Sons, Ltd. Abstract : This study developed a novel high‐capacity steganography to transform sharp bitstreams into smooth bitstreams before it is hidden into a cover image. Additionally, the proposed scheme employs generalized difference expansion transform for image recovery after data extraction; consequently, the image fidelity can be preserved.