计算机应用与软件2013，Vol.30Issue(2)：315-316,327,3.DOI:10.3969/j.issn.1000-386x.2013.02.083
一种新的无证书定向代理签名方案
A NEW CERTIFICATELESS DIRECTED PROXY SIGNATURE SCHEME
摘要
Abstract
Existing directed proxy signature schemes have the problems of certificate management or key escrow because most of them are based on the certificate public key cryptography or the identity-based cryptography. In order to protect the privacy of signature receiver, we propose in this paper a new certificateless directed proxy signature scheme based on the merit of certificateless public key cryptography. In the scheme, the proxy signer can generate a directed proxy signature on behalf of the original signer for a designated receiver, only the designated-receiver specified by the original signer can verify the validity of the signature. Compared with existing directed proxy signature schemes, the new one does not have the problems of certificate management and key escrow, so its security is improved. Analysis shows that the new scheme satisfies all the required characteristics of the directed proxy signature and is suitable for practical application.关键词
定向代理签名/密钥生成中心/指定接收人Key words
Directed proxy signature/Key generating centre (KGC) /Designated-receiver分类
信息技术与安全科学引用本文复制引用
左为平,刘云芳,王三福,杨晓亚..一种新的无证书定向代理签名方案[J].计算机应用与软件,2013,30(2):315-316,327,3.基金项目
天水师范学院中青年教师科研资助项目(TSA0936). （TSA0936）
