PingPong-128, A New Stream Cipher for Ubiquitous Application

  • Authors:
  • HoonJae Lee;Kevin Chen

  • Affiliations:
  • -;-

  • Venue:
  • ICCIT '07 Proceedings of the 2007 International Conference on Convergence Information Technology
  • Year:
  • 2007

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Abstract

The PingPong family of keystream generator is based on the LM-type summation generator. A mutual- clock-control mechanism is added to the LM-type summation generator to provide a security enhancement. PingPong-128, a specific cipher from the PingPong family, is proposed. It takes a 128-bit key and a 128-bit initialisation vector, has 257 bits of internal state, and achieves a security level of 128 bits. In this paper, we present the security analysis of PingPong-128, including the resistance to known attacks against the summation generator and other clock-controlled generators.