Threshold Secret Sharing
draft-mcgrew-tss-03

Document Type Expired Internet-Draft (individual)
Last updated 2010-03-03
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-mcgrew-tss-03.txt

Abstract

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.

Authors

David McGrew (mcgrew@cisco.com)
Praveen Patnala (praveenpatnala@yahoo.com)
Alfred Hoenes (ah@TR-Sys.de)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)