Developing and investigation of a new technique combining message authentication and encryption

  • Authors:

  • Eyas El-Qawasmeh;Saleem Masadeh

  • Affiliations:

  • Computer Science Dept., Jordan University for Science and Technology, Irbid, Jordan;Computer Science Dept., Jordan University for Science and Technology, Irbid, Jordan

  • Venue:
  • ACOS'06 Proceedings of the 5th WSEAS international conference on Applied computer science
  • Year:
  • 2006

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Abstract

This paper describes a new method for authenticating and encrypting messages. Our method employs any encryption algorithm as underlying block cipher. Proposed algorithm uses two key values, first key for the underlying encryption algorithm, and the second key for the new mode. The proven security describes the attacker inability to forge the new Encryption-Authentication algorithm, in terms of his (presumed) inability to break the underlying random S-box, the second key, and the underlying encryption function.