TWIS --- A Lightweight Block Cipher

  • Authors:
  • Shri Kant Ojha;Naveen Kumar;Kritika Jain; Sangeeta

  • Affiliations:
  • Department of Defence R & D, Metcalfe House, Joint Cipher Bureau, India 110054;Department of Computer Science, University of Delhi, India 110007;Department of Computer Science, University of Delhi, India 110007;Department of Computer Science, University of Delhi, India 110007

  • Venue:
  • ICISS '09 Proceedings of the 5th International Conference on Information Systems Security
  • Year:
  • 2009

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Abstract

A new 128-bit block cipher, TWIS is proposed. It uses key size of 128-bits. The design targets to software environment for resource constrained applications. It is inspired from existing block cipher, CLEFIA. Although the proposed design uses less resources as compared to CLEFIA, it compares favorably with CLEFIA in terms of security provided.