| 一个改进的无证书签名方案 |
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| 引用本文： | 任锡沣,赵泽茂,余婷.一个改进的无证书签名方案[J].杭州电子科技大学学报,2012,32(5):67-69. |
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| 作者姓名： | 任锡沣 赵泽茂 余婷 |
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| 作者单位： | 杭州电子科技大学通信工程学院,浙江杭州,310018 |
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| 基金项目： | 浙江省自然科学基金资助项目（Y1100818） |
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| 摘 要： | 该文分析了无证书签名方案,指出该方案不能抵抗公钥替换攻击.采用绑定公钥到Hash函数的方法对洪方案进行改进,改进的方案可以抵抗替换公钥攻击,并且具有较高的效率,其安全性依赖于q强Diffie-Hellman (q-SDH)困难问题和逆计算Diffe-Hellman (Inv-CDH)困难问题.
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| 关 键 词： | 无证书签名 公钥替换攻击 逆计算问题 |
An Improved Certificateless Signature Scheme |
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| REN Xi-feng
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ZHAO Ze-mao
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YU Ting.An Improved Certificateless Signature Scheme[J].Journal of Hangzhou Dianzi University,2012,32(5):67-69. |
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| Authors: | REN Xi-feng ZHAO Ze-mao YU Ting |
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| Affiliation: | (School of Communication Engineering,Hangzhou Dianzi University, Hangzhou Zhejiang 310018,China) |
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| Abstract: | By analyzing the security of the certificateless signature（CLS） scheme proposed by Hong et al,the authors pointed out that their scheme was insecure against public key replacement attack.An improved scheme was proposed using binding the public key to the hash function,which was secure against public key replacement attack and was very efficient.Its security relies on the hardness of q-strong Diffie-Hellman（q-SDH） problem and inverse-computational Diffie-Hellman（Inv-CDH） problem. |
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| Keywords: | certificateeless signature scheme public key substation attack |
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