I-D Action:draft-mcgrew-tss-01.txt

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	Title           : Threshold Secret Sharing
	Author(s)       : D. McGrew, P. Patnala
	Filename        : draft-mcgrew-tss-01.txt
	Pages           : 24
	Date            : 2008-12-19

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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