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1.
Design and analysis of new shuffle encryption schemes for multimedia
Rajan Gupta, Ankur Aggarwal, Saibal K. Pal, 2012, original scientific article

Abstract: Securing the contents of visual data and multimedia requires specific design consideration for use in different applications. The major issue with this type of data has been occurrence of redundancy, at various places particularly in images, which makes data values repetitive at several places. The focus of this paper is on design of new shuffling schemes that can efficiently destroy redundancy in the visual data ensuring its secured transmission and distribution over public networks. Different variants of these shuffling schemes will be used as pre-processing schemes on multimedia data values especially in light weight devices using images. Standard as well as chaotic permutation and substitution schemes together with S-box rotation have been used to shuffle and map the plain data into random uncorrelated values via various variants of the presented schemes. For further improving the security, the processed data is encrypted using a computationally fast algorithm in its normal mode of operation. Security analysis using different types of images show that the proposed schemes satisfy the parameters required for securing visual contents even with very high redundancy.
Found in: ključnih besedah
Keywords: multimedia security, shuffle, S-box, chaotic encryption, security analysis
Published: 01.04.2021; Views: 437; Downloads: 0
.pdf Fulltext (1,06 MB)

2.
Efficient and secured video encryption scheme for lightweight devices
Rajan Gupta, Neeharika Chaudhary, Anika Garg, Saibal K. Pal, 2014, original scientific article

Abstract: Technological advancements in the field of multimedia have made access to information effortless. As information is available easily to everyone so it is quite essential to shield secretive data. This paper focuses on encrypting videos using confusion and diffusion at various levels. Chaotic skew tent map and nested piecewise linear chaotic map which are categorized under piecewise linear maps have been used for the processing. Two skew tent maps are cross coupled with each other to generate random values. The binary sequences are generated by comparing the outputs of the cross coupled piecewise linear chaotic maps. The generated binary sequence is used for bit level diffusion. Further, pixels are shuffled to provide higher level of encryption. The ciphered video is of the same size as that of plain video. The proposed scheme is of low complexity and provides high level encryption. The security analysis of the technique has been carried out and better results have been found regarding the statistical and differential attacks. The code development has been done in MATLAB and the scheme is applicable in areas like Video Encryption, Steganography and Digital Watermarking on various lightweight devices.
Found in: ključnih besedah
Summary of found: ...Technological advancements in the field of multimedia have made access to information effortless. As...
Keywords: video processing, multimedia encryption, chaotic maps, lightweight device security
Published: 01.04.2021; Views: 458; Downloads: 0
.pdf Fulltext (787,85 KB)

3.
A novel lightweight encryption scheme for multimedia data
Neeharika Chaudhary, Saibal K. Pal, Rajan Gupta, 2014, original scientific article

Abstract: The usage of Multimedia data has increased by many folds in recent years. And with so many different types of devices available to access the data, it becomes imperative to protect its sanctity. In this paper, a novel lightweight encryption scheme using a secret key has been proposed for multimedia data especially Videos. Chaos based maps has been used to provide an apt level of confusion and diffusion process at different levels of Video Processing. Proposed technique has a high encryption rate and performs well even with the videos with excessive redundant data. Security Analysis has been performed to validate the high security features against different types of Statistical and Differential attacks and helps to prove the effectiveness of proposed system.
Found in: ključnih besedah
Keywords: chaotic maps, lightweight schemes, multimedia encryption, security analysis
Published: 01.04.2021; Views: 471; Downloads: 2
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