On a cipher evaluation method based on differential cryptanalysis

  • Sorimachi Tohru
    Computer & Information Systems Laboratory,Mitsubishi Electric Corporation
  • Matsui Mitsuru
    Computer & Information Systems Laboratory,Mitsubishi Electric Corporation

Bibliographic Information

Other Title
  • 差分解読法に基づく暗号強度評価に関する一考察

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Description

In this paper,we propose an evaluation method for DES- like(involution type)cryptosystems based on differential cryptanalysis,and examine the availability of given differential values.We have evaluated three DES-like cryptosystems(DES,FEAL, Multi2). Recently,the modified DES-like cryptosystems have been proposed as an effective counterplot against differential cryptanalysis.The modified DES-like cryptosystems have involution structure which is variable by pre-defined parameters dynamically;we call this ′ dyna mic structure′.We have evaluated dynamic structure by the proposed evaluation method.As a result,we show that the structure is not necessarily strong than expected,as compared with original algorithm.

Journal

  • Technical report of IEICE. ISEC

    Technical report of IEICE. ISEC 93 (24), 1-10, 1993-05-14

    The Institute of Electronics, Information and Communication Engineers

Keywords

Details 詳細情報について

  • CRID
    1570291227409317120
  • NII Article ID
    110003297138
  • NII Book ID
    AN10060811
  • Text Lang
    ja
  • Data Source
    • CiNii Articles

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