摘要
数字签名是密码学中长期受关注的问题。目前,数字签名的种类越来越多,比如基于身份的数字签名、代理数字签名、强数字签名等等。先提出了两个基于离散对数下的代理数字签名,并在此协议的基础上发展出基于身份的代理数字签名。此签名融合了零知识证明的知识,同时又把人的生物特征添加其中作为身份,使之具有更好的身份签名属性,这样能更好地抵抗网络木马和僵尸的攻击,即它具有smart卡的属性。
Digital signature always attracts much attention. At present, more and more types of digital signatures, such as identity-based digital signature, proxy digital signature, strong digital signature. This paper describes two proxy digital signature protocols based on discrete logarithm. And based on these, an identity-based proxy digital signature protocol is proposed, which integrates the knowledge of zero-knowledge proof while adds the human biological characteristics to ID-based signature. Thus this ID-baded proxy digital signature protocol is more resistant to network Trojans and zombie attacks, this means it has the properties of smart cards.
出处
《信息安全与通信保密》
2010年第6期74-76,81,共4页
Information Security and Communications Privacy
关键词
单向陷门置换
承诺
零知识汪明
数字签名
生物密码
one-way trapdoor permutation
commitment
zero-knowledgeproof
digital signature
hiologicalcryptography
