Design and Analysis of A New Secure Stream Cipher Algorithm

Author

Abstract

In this paper, we designed and analysed a new word-oriented stream cipher algorithm with a key length of 256 bit. The proposed algorithm is highly resistant against known attacks. The main principles of the algorithm are based on improved word-oriented shift registers in clock control mode with cyclic period greater than . With the improvement of certain nonlinear kernel of some algorithms, such as SNOW2 and using it as a nonlinear part of encryption, resulted algorithm is much more resistant than similar samples against distinguish and algebraic attacks. According to security analysis, complexity of distinguish attack is and complexity of algebraic attacks is .

Keywords


Volume 5, Issue 2 - Serial Number 16
February 2015
Pages 81-91
  • Receive Date: 30 January 2019
  • Revise Date: 22 November 2024
  • Accept Date: 30 January 2019
  • Publish Date: 22 June 2014