Abstract
Different from most of recent studies or research on encryption algorithms based on chaotic system, the paper schemes out multiple chaotic system as an encryption approach not only after compressing video streams but also during the processing of compression frame by frame. The so-called multiple chaotic system actually consists of three chaotic or hyperchaotic maps, namely logistics map[l], 2-D Baker Map and a 4-D hyperchaotic Map[2].The three secret key encryptions are carried out as partial encryption when compressing the video data, and as block permutation and confusion after the video compression respectively. The implemented application fully substantiates the favorable efficiency of the proposed scheme such as speedy compression and encryption, overall high security and small size preservation.
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