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Impact of Scrambling on Barcode Entropy

机译:扰码对条形码熵的影响

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摘要

Security barcodes and other barcodes linked to on-line databases have become commonplace due to the increased avail ability of mobile phones equipped with high-quality cameras. In this article, the authors provide methods for quantifying the entropy of the embedded barcode data, assuming methods other than the standards-specified error-correcting code (ECC) approaches can be adopted. Higher entropy, which reduces the likelihood of a fraudulent agent being able to "guess" correct barcodes, is measured directly using a variety of novel algorithms and applied to large sets of barco des. The authors data, however, show that removing ECC provides the additional advantage of increasing the entropy. Thus, all other settings (data payloadsize, printing technology, substrate used, etc.) being equal, eliminating the ECC increases the security of the infor mation content for the barcodes (DataMatrix) tested.
机译:安全条形码和链接到在线数据库的其他条形码已变得司空见惯,这是因为配备了高质量相机的手机的可用性越来越强。在本文中,作者提供了量化嵌入条形码数据的熵的方法,假定可以采用除标准指定的纠错码(ECC)方法之外的方法。使用多种新颖算法直接测量较高的熵,从而降低欺诈者能够“猜测”正确条形码的可能性,并将其应用于大量条形码。然而,作者的数据表明,删除ECC还具有增加熵的其他优点。因此,所有其他设置(数据有效载荷大小,打印技术,使用的基材等)均相等,消除了ECC,从而提高了所测试条形码(DataMatrix)的信息内容的安全性。

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  • 来源
    《Journal of Imaging Science and Technology》 |2011年第5期|p.050601.1-050601.9|共9页
  • 作者

    Marie Vans; Steven J. Simske;

  • 作者单位

    Hewlett-Packard Laboratories, 3404 East Harmony Road, Fort Collins, Colorado 80528;

    Hewlett-Packard Laboratories, 3404 East Harmony Road, Fort Collins, Colorado 80528;

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  • 正文语种 eng
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