Schemes For Secure Management Of Digitally
Produced Documents
Author(s)
D. Gligoroski, S. J. Knapskog & S. Andova
Abstract
By means of a recently proposed encryption and error correcting system we define
schemes for building secure protocols for a number of different scenarios for management
of digitally produced documents. The documents are both encrypted and
robust against a certain amount of intentional or non-intentional errors. Some of
the schemes are based on the property of the system that the introduced redundant
information needed for error-correction is not algorithmically predetermined but
can arbitrarily be chosen, i.e. it can be given a semantical meaning if necessary or
if desired by the user.
Keywords: secure documents, error-correction, cryptography, quasigroup, quasigroup
string transformations.
1 Introduction
Building methods that can deal with errors in presence of cryptographic operations
is not new. Many of them combine encryption and encoding in various ways,
depending for what problems they are intended to solve. For instance, there are
several methods developed in biometrics, for use and protection of biometric data,
as well as methods for a cryptographic protection of digitally produced documents.
For example, Ray and Ellson [1] in 1994 registered a US patent, based
on a combination of cryptographic and error-correction techniques; the method
solves the problem of credit card authentication and is based on use of biometric
data extracted from an image of the card holder. O’Gorman and Rabinovich in
several works [2, 3, 4] from 1996-1998 used also a combination of cryptographic
Keywords
secure documents, error-correction, cryptography, quasigroup, quasigroupstring transformations.
Related Book
Other papers in this volume
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