计算机应用 ›› 2014, Vol. 34 ›› Issue (5): 1300-1303.DOI: 10.11772/j.issn.1001-9081.2014.05.1300

• 计算机安全 • 上一篇    下一篇

新的标准模型下安全的数字签名方案

张腾飞1,张敏情1,2,王绪安1   

  1. 1. 武警工程大学 电子技术系,西安 710086;
    2. 西北工业大学 计算机学院,西安 710129
  • 收稿日期:2013-11-15 修回日期:2013-12-27 出版日期:2014-05-01 发布日期:2014-05-30
  • 通讯作者: 张腾飞
  • 作者简介:张腾飞(1990-),男,山东青岛人,硕士研究生,主要研究方向:密码学、信息安全;张敏情(1967-),女,陕西西安人,教授,博士,主要研究方向:密码学、信息安全;王绪安(1981-),男,湖北公安人,副教授,硕士,主要研究方向:密码学、信息安全。〖HJ〗〖HT〗〖FQ)〗
  • 基金资助:

    国家自然科学基金资助项目

New secure signature scheme in standard model

ZHANG Tengfei1,ZHANG Minqing1,2,WANG Xuan1   

  1. 1. Department of Electronic Technology, Engineering University of Chinese Armed Police Force, Xi’an Shaanxi 710086, China;
    2. School of Computer Science, Northwestern Polytechnical University, Xi’an Shaanxi 710129, China
  • Received:2013-11-15 Revised:2013-12-27 Online:2014-05-01 Published:2014-05-30
  • Contact: ZHANG Tengfei

摘要:

针对标准模型下数字签名方案较难构造的问题,在已有选择密文攻击(CCA)安全的可公开验证加密(PVPKE)方案基础上,提出一种标准模型下的数字签名方案。构造基于以下结论:CCA安全的PVPKE方案密文的合法性可公开验证,而数字签名也要求可公开验证;CCA安全的PVPKE方案密文不可伪造,而数字签名也要求不可伪造。通过将PVPKE方案中私钥用于签名,其公钥用于签名的验证,设计数字签名方案,并进行了安全性证明。分析结果表明,所提出的方案在邮件传输系统中有较好应用。

Abstract:

Concerning the problem that it is hard to construct digital signature scheme in the standard model, a new signature scheme was proposed, based on Chosen Ciphertext Attack (CCA) secure Publicly Verifiable Public Key Encryption (PVPKE). The construction is based on the following facts: public verifiability is required in both signature scheme and PVPKE scheme; signatures in signature scheme can not be malleable, and ciphertexts in CCA secure PVPKE scheme can not also be malleable. To design the scheme, private key in PVPKE scheme was used to sign, and the public key was used to verify. Security proof was also given. Analysis result indicates that the proposed scheme has good application in the mail transfer system.

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