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vdmfec Documentation


recover lost blocks using Forward Error Correction
VDMFEC implements Block ECC using a Forward Error Correction
(FEC) code based on Vandermonde (VDM) matrices in GF(2^8) due
to Luigi Rizzo. Given the FEC parameters K and N, with N
greater than K, N blocks are written for every K input blocks
in such a way that any K blocks are sufficient to reconstruct
the data. That is, up to N - K blocks out of every group of N
blocks may be lost without loss of data. Its primary
application is intended to be in recovering data from
unreliable media such as diskettes.
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