Proceedings Article10.1109/CCST.1991.202208
A new signal encryption technique and its attack study
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TL;DR: This type of signal encryption does not increase redundancy in the signal, which resolves the dilemma between data compression and encryption because the compression efficiency of the encrypted signal is increased.
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Abstract: A novel image and speech signal encryption technique is proposed. The encrypted signal is obtained by scrambling the phase spectrum of the original one. Since the phase spectrum of the original signal is changed, the resulting signal is unrecognized and signal encryption is achieved. The phase spectrum of original signal is modified according to the phase spectrum of pseudonoise. The pseudonoises include m-sequences, Gold code sequences, quasi m-arrays, and Gold code arrays. This type of signal encryption does not increase redundancy in the signal, which resolves the dilemma between data compression and encryption because the compression efficiency of the encrypted signal is increased. The attack study for this type of encryption is also conducted. It is shown that the possibility of a successful attack for a 512*512 encrypted image is 1.25*10/sup -11/. >
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Citations
A new chaotic key-based design for image encryption and decryption
Jui-Cheng,Jiun-In Guo +1 more
- 01 Jan 2000
TL;DR: An image encryption/decryption algorithm and its VLSI architecture with low hardware cost, high computing speed, and high hardware utilization efficiency is proposed and the architecture of integrating the scheme with MPEG2 is proposed.
325
Efficient multimedia encryption via entropy codec design
Chung-Ping Wu,C.-C. Jay Kuo +1 more
TL;DR: This work proposes a novel methodology for confidentiality, which turns entropy coders into encryption ciphers by using multiple statistical models, and shows that security is achieved without sacrificing the compression performance and the computational speed.
137
Fast encryption methods for audiovisual data confidentiality
Chung-Ping Wu,C.-C. Jay Kuo +1 more
- 22 Mar 2001
TL;DR: Two methodologies for efficient audiovisual data encryption are studied, i.e. selective encryption and MHT (multiple-Huffman-table), and another encryption methodology via the manipulation of Huffman coding tables of multimedia coding systems is investigated.
124
A new image encryption algorithm and its VLSI architecture
Jui-Cheng Yen,Jiun-In Guo +1 more
- 01 Dec 1999
TL;DR: In this paper, a new image encryption algorithm and its VLSI architecture are proposed based on a defined bit recirculation function and a binary sequence generated from a chaotic system, the gray level of each pixel in the image is transformed.
93
Image encryption based on diffusion and multiple chaotic maps
TL;DR: In this article, a secure image encryption method using multiple chaotic based circular mapping is proposed, where a pair of sub-keys are given by using chaotic logistic maps and the image is encrypted using logistic map sub key and in its transformation leads to diffusion process.
74
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