中国邮电高校学报(英文) ›› 2015, Vol. 22 ›› Issue (5): 16-21.doi:

• Cyber Security • 上一篇    下一篇

Algebraic immunities of vector-valued functions over finite fields

刘振华1,张劼2,温巧燕3   

  1. 1. Computer science department, China Women's University, Beijing 100101, China 2. School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China 3. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2014-12-29 修回日期:2015-06-08 出版日期:2015-10-30 发布日期:2015-10-30
  • 通讯作者: 张劼 E-mail:jiezhang@bupt.edu.cn
  • 基金资助:

    The work was supported by National Natural Science Foundation of China (60873191, 60903152, 61003286, 60821001).

Algebraic immunities of vector-valued functions over finite fields

  1. 1. Computer science department, China Women's University, Beijing 100101, China 2. School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China 3. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2014-12-29 Revised:2015-06-08 Online:2015-10-30 Published:2015-10-30
  • Supported by:

    The work was supported by National Natural Science Foundation of China (60873191, 60903152, 61003286, 60821001).

摘要:

Algebraic immunity is an important cryptographic property of Boolean functions. The notion of algebraic immunity of Boolean functions has been generalized in several ways to vector-valued functions over arbitrary finite fields. In this paper, the results of Ref. [25] are generalized to arbitrary finite fields. We obtain vector-valued functions over arbitrary finite fields such that their algebraic immunities can reach the upper bounds. Furthermore, all the component functions, together with their some nonzero linear combinations, of vector-valued Boolean functions achieved by this construction have optimal algebraic immunities simultaneously.

关键词:

cryptography, Boolean functions, algebraic immunity, algebraic attacks, annihilator

Abstract:

Algebraic immunity is an important cryptographic property of Boolean functions. The notion of algebraic immunity of Boolean functions has been generalized in several ways to vector-valued functions over arbitrary finite fields. In this paper, the results of Ref. [25] are generalized to arbitrary finite fields. We obtain vector-valued functions over arbitrary finite fields such that their algebraic immunities can reach the upper bounds. Furthermore, all the component functions, together with their some nonzero linear combinations, of vector-valued Boolean functions achieved by this construction have optimal algebraic immunities simultaneously.

Key words:

cryptography, Boolean functions, algebraic immunity, algebraic attacks, annihilator

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