Efficient authentication from hard learning problems

  • Authors:
  • Eike Kiltz;Krzysztof Pietrzak;David Cash;Abhishek Jain;Daniele Venturi

  • Affiliations:
  • RU Bochum;CWI Amsterdam;UC San Diego;UC Los Angeles;Sapienza University of Rome

  • Venue:
  • EUROCRYPT'11 Proceedings of the 30th Annual international conference on Theory and applications of cryptographic techniques: advances in cryptology
  • Year:
  • 2011

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Abstract

We construct efficient authentication protocols and message-authentication codes (MACs) whose security can be reduced to the learning parity with noise (LPN) problem. Despite a large body of work - starting with the HB protocol of Hopper and Blum in 2001 - until now it was not even known how to construct an efficient authentication protocol from LPN which is secure against man-in-the-middle (MIM) attacks. A MAC implies such a (two-round) protocol.