Design of integrated multimedia compression and encryption systems

Two approaches for integrating encryption with multimedia compression systems are studied in this research, i.e., selective encryption and modified entropy coders with multiple statistical models. First, we examine the limitations of selective encryption using cryptanalysis, and provide examples tha...

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Vydáno v:	IEEE transactions on multimedia Ročník 7; číslo 5; s. 828 - 839
Hlavní autoři:	Chung-Ping Wu, Kuo, C.-C.J.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.10.2005 Institute of Electrical and Electronic Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	Application software Applied sciences Artificial intelligence CELP Coders Compressing Computer science; control theory; systems Confidentiality Costs Cryptography Encryption Entropy entropy coder Exact sciences and technology G.723.1 speech coding Huffman coding Image coding Information, signal and communications theory MPEG encoders Multimedia Multimedia databases multimedia encryption Multimedia systems QM coder selective encryption Signal and communications theory Signal processing signal scrambling Speech and sound recognition and synthesis. Linguistics Speech processing Statistical analysis Streaming media Telecommunications and information theory Transform coding Video compression Multimedia QM coder Image processing Huffman code G.723.1 speech coding Moving picture expert group entropy coder Scrambling Entropy Encryption Engineering design multimedia encryption signal scrambling Speech coding Confidentiality selective encryption Cryptanalysis CELP Cryptography Computer security Huffman coding
ISSN:	1520-9210, 1941-0077
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Popis
Shrnutí:	Two approaches for integrating encryption with multimedia compression systems are studied in this research, i.e., selective encryption and modified entropy coders with multiple statistical models. First, we examine the limitations of selective encryption using cryptanalysis, and provide examples that use selective encryption successfully. Two rules to determine whether selective encryption is suitable for a compression system are concluded. Next, we propose another approach that turns entropy coders into encryption ciphers using multiple statistical models. Two specific encryption schemes are obtained by applying this approach to the Huffman coder and the QM coder. It is shown that security is achieved without sacrificing the compression performance and the computational speed. This modified entropy coding methodology can be applied to most modern compressed audio/video such as MPEG audio, MPEG video, and JPEG/JPEG2000 images.
Bibliografie:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 14 content type line 23
ISSN:	1520-9210 1941-0077
DOI:	10.1109/TMM.2005.854469