1983•IEEE Transactions on Information TheoryRequires access

A modular approach to key safeguarding

C.A. Asmuth, Jordana C. Bloom

Abstract

A method is proposed for a key safeguarding scheme (threshold scheme) in which the shadows are congruence classes of a number associated with the original key. A variation of this scheme provides efficient error detection and even exposes deliberate tampering. Certain underlying similarities of this scheme with Shamir's interpolation method make it possible to incorporate these protective features in that method as well.

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Available abstract

Key concepts: Safeguarding, Scheme (mathematics), Key (lock), Modular design, Computer science, Interpolation (computer graphics), Congruence (geometry), Theoretical computer science