Parameterized biorthogonal wavelet lifting for lightweight JPEG 2000 transparent encryption

Authors:
Dominik Engel;Andreas Uhl
Affiliations:
Salzburg University, Austria;Salzburg University, Austria
Venue:
MM&Sec '05 Proceedings of the 7th workshop on Multimedia and security
Year:
2005

Citing 5
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Abstract

Lightweight encryption offers a cogent alternative to full encryption of visual content in application settings with clients of low processing power, e.g. mobile applications, as it counterbalances security demands and computational demands. We present a lightweight transparent encryption scheme for JPEG 2000 that is based on and integrated into the wavelet lifting scheme. Keys are constructed from parameterized biorthogonal filters. The proposed method comes at extremely low computational cost and provides natural support for transparent encryption. We discuss the advantages and disadvantages of this encryption scheme with respect to keyspace, computational demands, compression performance, and security.