Secure negotiation approach for share-secret-key of Kerberos service

  • Authors:
  • Lai-Cheng Cao

  • Affiliations:
  • School of Computer and Communication, Lanzhou University of Technology, Lanzhou, China

  • Venue:
  • AICI'11 Proceedings of the Third international conference on Artificial intelligence and computational intelligence - Volume Part II
  • Year:
  • 2011

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Abstract

The generation and distribution of the shared secret-key in Kerberos protocol are a security infrastructure. In order to enhance the security of distributed applications based on Kerberos protocol, a scheme of the shared secret-key negotiation was put forward. The shared secret-key could be generated and distributed by the Diffie-Hellman algorithm. Negotiation parameters of communicating parties were protected by opposite party's public key to encrypt. The distribution of the public key and privacy key adopted ECC (Elliptic Curve Cryptography); there was a computational advantage to using ECC with a shorter key length than RSA. Security analysis shows that this scheme has high security and can resist Man-in-the-Middle attack.