Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (1): 142-142.
• 网络、通信与安全 • Previous Articles Next Articles
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张学军1,王育民
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Abstract: This paper analyzes the existing ID-based blind signatures and proxy signatures. It is found that these systems need to trust a PKG(Private Key Generator) unconditionally. Because PKG can compute the private key of any user in system, it can forge a blind signature or a proxy signature of any one. Based on the existing ID-based signature, a new ID-based blind signature without trusted PKG is proposed. Meanwhile, a new ID-based proxy signature without trusted PKG is also proposed. It is showed that our proposed blind signature and proxy signature are secure and effective.
Key words: identity-based, PKG, blind signature, proxy signature
摘要: 本文分析了现有的基于身份的盲签名和代理签名,发现这些系统都需要无条件信任私钥产生中心(PKG, Private Key Generator)。因为PKG可以计算系统内任何用户的私钥,当然可以伪造任何用户的盲签名和代理签名。本文在已有基于身份无可信中心签名的基础上提出了一个基于身份无可信中心的盲签名,同时提出了一个基于身份无可信中心的代理签名。分析表明,本文提出的盲签名和代理签名是安全有效的。
关键词: 基于身份, 私钥产生中心, 盲签名, 代理签名
,. The New ID-Based Blind Signature and Proxy Signature Without a Trusted Party[J]. Computer Engineering and Applications, 2007, 43(1): 142-142.
张学军1,王育民. 新的基于身份无可信中心的盲签名和代理签名[J]. 计算机工程与应用, 2007, 43(1): 142-142.
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http://cea.ceaj.org/EN/Y2007/V43/I1/142