A concatenated coding scheme for biometric template protection

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    4 Citations (Scopus)


    Cryptography may mitigate the privacy problem in biometric recognition systems. However, cryptography technologies lack error-tolerance and biometric samples cannot be reproduced exactly, rising the robustness problem. The biometric template protection system needs a good feature extraction algorithm to be a good classifier. But, an even effective feature extractor can give a very low-quality biometric channel (i.e. high Bit Error Rate (BER)). Using the Spectral Minutiae method to identify fingerprints is one of the examples, which gives a BER of 40 ∼ 50% to most of the matching channels. Therefore, we propose a concatenated coding scheme based on erasure codes to achieve a robust and secure biometric recognition system. The key idea is to transmit more packets than needed for decoding and allow the erasure-encoded packet suffering high BER to be discarded. The erasure decoder can reconstruct the secret key by collecting enough surviving packets. By applying the spectral minutiae method in the FVC2000-DB2 fingerprint database, the unprotected system achieves an EER of 3.7% and our proposed coding scheme reaches an EER of 4.6% with a 798-bit secret key.
    Original languageUndefined
    Title of host publication2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP),
    Place of PublicationUSA
    PublisherIEEE Signal Processing Society
    Number of pages4
    ISBN (Print)978-1-4673-0045-2
    Publication statusPublished - 25 Mar 2012
    EventIEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2012 - Kyoto, Japan
    Duration: 25 Mar 201230 Mar 2012

    Publication series

    PublisherIEEE Signal Processing Society
    ISSN (Print)1520-6149


    ConferenceIEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2012
    Abbreviated titleICASSP


    • METIS-296093
    • EWI-22290
    • SCS-Safety
    • IR-81680

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