计算机应用 ›› 2013, Vol. 33 ›› Issue (04): 1047-1050.DOI: 10.3724/SP.J.1087.2013.01047

• 信息安全 • 上一篇    下一篇

基于身份的抗选择性公开攻击广播加密方案

葛运龙1,王绪安1,潘峰1,2,3   

  1. 1. 武警工程大学 网络与信息安全武警部队重点实验室,西安710086
    2. 武警工程大学 网络与信息安全研究所,西安 710086
    3. 西安电子科技大学 网络信息安全教育部重点实验室,西安 710086
  • 收稿日期:2012-10-11 修回日期:2012-11-26 出版日期:2013-04-01 发布日期:2013-04-23
  • 通讯作者: 葛运龙
  • 作者简介:葛运龙(1989-),山东荣成人,硕士研究生,主要研究方向:公钥密码学;王绪安(1981-),男,湖北公安人,副教授,主要研究方向:公钥密码学;潘峰(1967-),男,北京人,副教授,主要研究方向:公钥密码学。
  • 基金资助:

    国家自然科学基金资助项目(61103230,61103231,61272492,61202492);陕西省自然科学基金资助项目(2010JM8034)

Identity based broadcast encryption scheme against selective opening attack

GE Yunlong1,WANG Xu'an1,PAN Feng1,2,3   

  1. 1. Institute of Network and Information Security, Engineering University of Chinese Armed Police Force, Xi'an Shaanxi 710086,China
    2. Key Laboratory of Network & Information Security of the Ministry of Education, Xidian University, Xi'an Shaanxi 710071, China
    3. Key Laboratory of Network and Information Security,Engineering University of Chinese Armed Police Force, Xi'an Shaanxi 710086,China
  • Received:2012-10-11 Revised:2012-11-26 Online:2013-04-01 Published:2013-04-23
  • Contact: GE Yunlong

摘要: 孙瑾等提出了一种抗选择性公开攻击的身份型广播加密方案(孙瑾,胡予濮. 抗选择性公开攻击的身份型广播加密方案. 电子与信息学报,2011,33(12):2929-2934),并称该方案具有在标准模型下可证全安全,具有短的尺寸固定的密文和密钥,无须随机标签的特点。然而,研究发现该方案无法正确运行的,进而提出了一种改进方案,并在标准模型给出了改进方案的安全性证明。

关键词: 身份型广播加密, 密码分析, 全安全

Abstract: Recently Sun Jin,et al. proposed an dentity-based broadcast encryption scheme against selective opening attack, (SUN JIN, HU YU-PU. Identity-based broadcast encryption scheme against selective opening attack. Journal of Electronics and Information Technology, 2011, 33(12): 2929-2934) and it claimed that the scheme can fight against Selective-Opening Attack (SOA) and has constant-size key and ciphertext in the standard model without random tags. However, this paper proved that their proposal cannot work at all. Furthermore, the authors improved their scheme to be a correct one, and then proved its security in the standard model.

Key words: identity-based broadcast encryption, cryptanalysis, full security

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