标准模型下的密钥隔离代理签名方案OACSTPCD
Key-insulated Proxy Signature in Standard Model
代理签名方案中的密钥泄露问题在所难免。为了减轻代理签名方案中的密钥泄露带来的危害,将密钥隔离机制引入代理签名方案。现有的密钥隔离代理签名方案都是基于身份的。本文提出标准模型下的密钥隔离代理签名方案,并在安全模型中证明密钥隔离安全性和代理签名的不可伪造性。
Key-exposure seems inevitable in proxy signature scheme. To minimize the damage caused by key exposure in proxy signature scheme, key-insulated mechanism to proxy signature scheme was introduced. However, existing key-insulated proxy sig-nature schemes are based on identity. In this paper, we present a key-insulated proxy signature scheme in the standard model. The scheme is key-insulated security and unforgeability of the proxy signature.
严松惠;万中美
河海大学理学院,江苏 南京 211100河海大学理学院,江苏 南京 211100
信息技术与安全科学
密钥隔离代理签名标准模型
key-insulatedproxy signaturestandard model
《计算机与现代化》 2016 (10)
基于私钥进化的密码体制的研究
77-83,7
国家自然科学基金资助项目(61103183)
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