中国邮电高校学报(英文版) ›› 2016, Vol. 23 ›› Issue (3): 1-10.doi: 10.1016/S1005-8885(16)60026-2

• Artificial Intelligence •    下一篇

A secure oblivious transfer protocol from indistinguishability obfuscation

王梅,袁征,冯笑   

  1. 北京电子科技学院
  • 收稿日期:2015-10-21 修回日期:2016-03-20 出版日期:2016-06-28 发布日期:2016-07-05
  • 通讯作者: 袁征 E-mail:zyuan@tsinghua.edu.cn
  • 基金资助:

    北京自然科学基金,科学研究与研究生培养共建项目——科研基地——分组密码和混淆的新理论及应用研究

A secure oblivious transfer protocol from indistinguishability obfuscation

  • Received:2015-10-21 Revised:2016-03-20 Online:2016-06-28 Published:2016-07-05
  • Supported by:

    Beijing Natural Science Foundation, Scientific Research and Postgraduate Training Cooperation Project-Scientific Research Base-New Theory of Block Cipher and Obfuscation and their Application Research

摘要: This paper propose a new secure oblivious transfer protocol from indistinguishability obfuscation. The main technical tool in this paper is the candidate indistinguishability obfuscation introduced recently and a dual-mode cryptosystem.. Following their steps, a new k-out-of-l oblivious transfer protocol is presented here, and its realization from DDH is described in this paper, in which we combined indistinguishability obfuscation with the dual-mode cryptosystem. The security of our scheme mainly relies on the indistinguishability of the obf-branches(corresponding to the two modes in dual-mode model). Our paper explores a new way for the application of indistinguishability obfuscation.

关键词:

Abstract:

This paper propose a new secure oblivious transfer protocol from indistinguishability obfuscation. The main technical tool in this paper is the candidate indistinguishability obfuscation introduced recently and a dual-mode cryptosystem.. Following their steps, a new k-out-of-l oblivious transfer protocol is presented here, and its realization from DDH is described in this paper, in which we combined indistinguishability obfuscation with the dual-mode cryptosystem. The security of our scheme mainly relies on the indistinguishability of the obf-branches(corresponding to the two modes in dual-mode model). Our paper explores a new way for the application of indistinguishability obfuscation.

Key words:

indistinguishability obfuscation(iO), oblivious transfer protocol,dual-mode cryptosystem