Two New Secret Key Cryptosystems

Eurocrypt 1985, Linz, Austria
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 219)


Since the Data Encryption Algorithm DES was accepted as a Standard in 1977 [4], few new conventional cryptosystems have been proposed in the open literature [5]. However DES is not necessarily the most suitable encryption procedure for all applications. For example two people desiring to set up a private secure communication channel may not want to use a standardized encryption algorithm; or communicating parties may want to choose from a set of encryption algorithms, trading off speed against security. In this paper we propose two new conventional cryptosystems that are
  • adaptable (parameters can be chosen to increase or decrease execution time and level of security),

  • efficient (the algorithms are fast, even when implemented in a high level computer language), - easy to program (both algorithm can be written in less than 100 lines) and

  • conceptually simple.


Encryption Algorithm High Level Computer Language Cyclic Left Shift Standardize Encryption Algorithm Practical Cryptosystem 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. [1]
    H. Beker and F. Piper, Cipher Systems, John Wiley, 1982.Google Scholar
  2. [2]
    D. E. Knuth, The Art of Computer Programming, Vol.2, Addison Wesley, 1981.Google Scholar
  3. [3]
    A.G. Konheim, Cryptography: a Primer, John Wiley, 1981.Google Scholar
  4. [4]
    National Bureau of Standards, Data Encryption Standard, FIPS publication 46, U.S. Department of Commerce, January 1979.Google Scholar
  5. [5]
    J.A. Thomas and J. Thersites, An infinite encryption system, Dr. Dobb’s Journal, August 1984.Google Scholar

Copyright information

© Spnnger-Verlag Berlin Heidelberg 1986

Authors and Affiliations

  1. 1.Department of Computing & Information ScienceQueen’s UniversityKingston

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