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Further results on asymmetric authentication schemes

In English

Författare

Summary, in English

This paper derives some further results on unconditionally secure asymmetric authentication schemes. It starts by giving a general framework for constructing A2-codes, identifying many known constructions as special cases. Then a full treatment of A3-codes (A2-codes protecting against arbiter's attacks) is given, including bounds on the parameters and optimal constructions. With these models as a basis, we proceed by giving constructions of general asymmetric authentication schemes, i.e., schemes protecting against specified arbitrary sets of participants collaborating in order to cheat someone else. As a consequence, we improve upon Chaum and Roijakkers interactive construction of unconditionally secure digital signatures and present a (noninteractive) construction in the form of a code. In addition, we also show a few bounds for this general model, proving the optimality of some constructions.

Publiceringsår

1999

Språk

Engelska

Sidor

100-133

Publikation/Tidskrift/Serie

Information and Computation

Volym

151

Issue

1-2

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1090-2651