3 research outputs found
A coding approach for detection of tampering in write-once optical disks
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
A Coding Approach for Detection of Tampering in Write-Once Optical Disks
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 presents 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