Generalized hierarchical encryption of JPEG 2000 codestreams for access control
Generalized hierarchical encryption of JPEG 2000 codestreams for access control
- New search for: Imaizumi, S.
- New search for: Watanabe, O.
- New search for: Fujiyoshi, M.
- New search for: Kiya, H.
- New search for: Imaizumi, S.
- New search for: Watanabe, O.
- New search for: Fujiyoshi, M.
- New search for: Kiya, H.
This paper proposes an encryption scheme maintaining hierarchy of JPEG 2000 codestreams for flexible access control. JPEG 2000 generates hierarchical codestreams and has flexible scalability, such as, SNR, space, or color components. In a proposed method, only one managed key (master key) exists, and for a user permitted to access a reserved image quality, only one key generated by the master key is delivered. Also, a different key generated by the master key is delivered for a user permitted to access a different quality. The proposed access control method is available for all kinds of JPEG 2000 scalability. On the other hand, some conventional methods need several keys to control image quality. Another conventional method is not suitable for JPEG 2000 scalability.
Document information
Generalized hierarchical encryption of JPEG 2000 codestreams for access control
IEEE International Conference on Image Processing 2005 ; 2 ; II-1094
2005-01-01
186639 byte
Conference paper
Electronic Resource
English
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