SECRET DATA HIDING IN ENCRYPTED COMPRESSED VIDEO BITSTREAMS USING CHAOS CRYPTO SYSTEM
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 4, Issue 7
Abstract
Early research works have been done on image. Due to few features of images, such as high correlation among pixels and bulk data capacity , previous encryption algorithms are not suitable. Cloud computing has become an important technology trend, which can provide large-scale storage solution and highly efficient computation for video data. It is desired that the video content is accessible in encrypted form to protect from untrustworthy system administrators. The capability of performing data hiding is done in encrypted H.264/AVC video bitstreams which would avoid the leakage of video information also can help to maintain security and privacy concerns with cloud computing. During H.264/AVC compression, the intra-prediction mode (IPM), motion vector difference (MVD) and DCT coefficients’ signs are encrypted. For the purpose of content notation and tampering detection, it is necessary to perform data hiding in these encrypted videos. In system, a novel scheme of data hiding is proposed, which includes three section as follows, i.e., H.264/AVC video encryption, data encryption , and data decryption. Chaos crypto system is used here to encrypt/decrypt secret text data before/after data embedding/extraction. video file size is strictly preserved even after encryption and data embedding .
Authors and Affiliations
Sonali. A. Chaudhari ,
Keywords
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