Audio visual-oriented encryption algorithms

Fong Tien Ong, Kah Phooi Seng, Li-Minn Ang

Research output: Book chapter/Published conference paperConference paperpeer-review


This paper presents the specifically customized encryption algorithms for audio visual data. Image encryption utilizes the combined encryption scheme using the parameterized DWT, aliased Secure Wavelet Transform (SWT) which provides first level of image security and circular chaotic cryptosystem for second level of encryption. Encrypted images are highly secure in perception wise and have great key space span to resist attacks. Conversely, audio encryption is of exponential encryption algorithm on speech coefficients. Mel-frequency cepstral coefficients (MFCCs) — based feature extraction on speech signals yields crucial coefficient. Encryption on coefficients follows an exponential style in reflect of coefficient priority based on energy distribution leading to lower EDT time. In this paper, the authors investigate the proposed encryption scheme with analysis such as statistical, key space, and sensitivity analysis. Results show that the encryption scheme projects good attributes toward audio visual encryption purposes.
Original languageEnglish
Title of host publicationProceedings of the 2011 3rd International Conference on Software Technology and Engineering (ISCTE 2011)
PublisherAmerican Society of Mechanical Engineers(ASME)
ISBN (Print)9780791859797
Publication statusPublished - 2011
Event3rd International Conference on Software Technology and Engineering : ISCTE 2011 - Mines Wellness Hotel, Kuala Lumpur, Malaysia
Duration: 12 Aug 201113 Aug 2011


Conference3rd International Conference on Software Technology and Engineering
CityKuala Lumpur
Internet address


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