Structural digital signature and semi-fragile fingerprinting for image authentication in wavelet domain

Yan Zhu, Chang Tsun Li, Hong Jia Zhao

    Research output: Book chapter/Published conference paperConference paperpeer-review

    12 Citations (Scopus)

    Abstract

    In this paper, a novel semi-fragile authentication scheme based on block-mean quantization in the wavelet domain is proposed for image authentication. The scheme is composed of a structural digital signature process and a semi-fragile watermarking/ fingerprinting algorithm. In the signature process, the invariants are extracted as authentication codes from the quantization relationships and hierarchy information of discrete wavelet decomposition. The authentication codes consist of inter-block and intra-block codes in order to detect and localize tampering. The semi-fragile fingerprinting algorithm is intended to embed the signature via the use of block-mean quantization. The proposed scheme can effectively detect and localize the malicious modification while tolerating lossy compression.

    Original languageEnglish
    Title of host publicationProceedings - IAS 2007 3rd Internationl Symposium on Information Assurance and Security
    Pages478-483
    Number of pages6
    DOIs
    Publication statusPublished - 2007
    Event3rd Internationl Symposium on Information Assurance and Security, IAS 2007 - Manchester, United Kingdom
    Duration: 20 Aug 200731 Aug 2007

    Conference

    Conference3rd Internationl Symposium on Information Assurance and Security, IAS 2007
    Country/TerritoryUnited Kingdom
    CityManchester
    Period20/08/0731/08/07

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