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Conference Papers Year : 2008

A Hierarchical Selective Encryption Technique in a Scalable Image Codec

Abstract

Modern still image codecs furnish more than just good distortion-rate performances. They must also provide some services. Scalability in resolution and quality, er- ror resilience and embedded bitstreams were among the first one to be available. There is still room for enhance- ment, especially when it comes to security-oriented fea- tures. Image encryption is one of the aspect of image security. This paper presents the embedding of an encryptionservice in a multiresolution lossless codec. Partial encryption is performed using ciphering only the keystone part of the codec algorithm, a quadtree decomposition. This results in a hierarchical encryption scheme, showing to be a good tradeoff between encryption speed, selective access and robustness.
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Dates and versions

hal-00336403 , version 1 (03-11-2008)

Identifiers

  • HAL Id : hal-00336403 , version 1

Cite

Cyril Fonteneau, Jean Motsch, Marie Babel, Olivier Déforges. A Hierarchical Selective Encryption Technique in a Scalable Image Codec. International Conference in Communications, Jun 2008, Bucharest, Romania. pp.1-4. ⟨hal-00336403⟩
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