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2012•The International Conference on Electrical Engineering/The International Conference on Electrical Engineering Open access

A Modified Kerberos Authentication Scheme Using Public Key Cryptography

Khaled Khairy, Ahmed Abd Elhafez, Essam Abd El Wanees

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Abstract

Kerberos is a widely used authentication scheme based on symmetric key cryptography,although Kerberos is a part of MIT’s Project Athena it has been adopted by many otherorganizations for their own purposes. And is being discussed as a possible standard.Despite Kerberos’s many strengths, a number of limitations and some weaknesses haveappeared due to MIT’s environment that needs only user-to-server authentication andothers due to deficiencies in the protocol design. In this paper an improved schemeusing the Public Key cryptography will be proposed to enhance its security strength toovercome these limitations and weaknesses.

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What this paper is about

Kerberos is a widely used authentication scheme based on symmetric key cryptography,although Kerberos is a part of MIT’s Project Athena it has been adopted by many otherorganizations for their own purposes. And is being discussed as a possible standard.Despite Kerberos’s many strengths, a number of limitations and some weaknesses haveappeared due to MIT’s environment that needs only user-to-server authentication andothers due to deficiencies in the protocol design. In this paper an improved schemeusing the Public Key cryptography will be proposed to enhance its security strength toovercome these limitations and weaknesses.

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Available abstract

Kerberos is a widely used authentication scheme based on symmetric key cryptography,although Kerberos is a part of MIT’s Project Athena it has been adopted by many otherorganizations for their own purposes. And is being discussed as a possible standard.Despite Kerberos’s many strengths, a number of limitations and some weaknesses haveappeared due to MIT’s environment that needs only user-to-server authentication andothers due to deficiencies in the protocol design. In this paper an improved schemeusing the Public Key cryptography will be proposed to enhance its security strength toovercome these limitations and weaknesses.

Key concepts: Kerberos, Public-key cryptography, Computer science, Authentication (law), Computer security, Scheme (mathematics), Cryptography, Key (lock)

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