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<p><b>Abstract</b>—We present coding methods for protecting against tampering of write-once optical disks, which turns them into a secure digital medium for applications where critical information must be stored in a way that prevents or allows detection of an attempt at falsification. Our method involves adding a small amount of redundancy to a modulated sector of data. This extra redundancy is not used for normal operation, but can be used for determining, say, as a testimony in court, that a disk has not been tampered with.</p>
Optical disks, (d, k) codes, write-once memory, data integrity, tampering.
Wilfried Lenth, Kurt Rubin, Jehoshua Bruck, Mario Blaum, "A Coding Approach for Detection of Tampering in Write-Once Optical Disks", IEEE Transactions on Computers, vol. 47, no. , pp. 120-125, January 1998, doi:10.1109/12.656095
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