摘要
可净化签名方案中,净化者能够修改原消息的特定部分,不必与签名者交互就能生成修改消息的有效签名。利用双线性对,基于Waters技术和Li技术,提出一个标准模型下安全的基于身份可净化签名方案。安全性分析表明,所提方案能够满足不可伪造性、不可区分性和不可变性。和现有标准模型下安全方案相比,该方案计算效率高、通信代价小。
Sanitizable signature scheme allows stanitizer to modify the specific part of the original message without in- teracting with the signer to generate a valid signature to modify the message. This paper came up with an identity-based sanitizable signature scheme design based on Waters technology and Li technology under the standard model with the application of bilinear pairings. The salty analysis shows that the proposed scheme is able to satisfy the characteristics of unforgeability~ indistinguishability and immutability. Compared with the the existing salty scheme under the standard model, this design has higher computational dficiency and smaller communication cost.
出处
《计算机科学》
CSCD
北大核心
2013年第5期158-163,共6页
Computer Science
基金
国家自然科学基金项目(61202438)
中国博士后科学基金项目(2011M501427)
西安市科技计划项目(CX1258③)
中央高校基础研究支持计划资助项目(CHD2012JC047)资助
关键词
基于身份
可净化签名
标准模型
双线性对
Identity-based
Sanitizable signature scheme
Standard model
Bilinear pairings
