A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Threshold Secret Sharing
Author(s) : D. McGrew, et al.
Filename : draft-mcgrew-tss-02.txt
Pages : 26
Date : 2009-03-09
Threshold secret sharing (TSS) provides a way to generate N shares
from a value, so that any M of those shares can be used to
reconstruct the original value, but any M-1 shares provide no
information about that value. This method can provide shared access
control on key material and other secrets that must be strongly
protected.
This note defines a threshold secret sharing method based on
polynomial interpolation in GF(256) and a format for the storage and
transmission of shares. It also provides usage guidance, describes
how to test an implementation, and supplies test cases.
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