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Lattice-based unidirectional infinite-use proxy re-signatures with private re-signature key
Journal of Computer and System Sciences ( IF 1.1 ) Pub Date : 2021-04-15 , DOI: 10.1016/j.jcss.2021.03.008
Wenbin Chen , Jin Li , Zhengan Huang , Chongzhi Gao , Siuming Yiu , Zoe L. Jiang

In a proxy re-signature scheme, a semi-trusted proxy can convert Alice's (also called as delegatee's) signature into Bob's (also called as delegator's) signature on the same message. However, the proxy itself cannot produce any signatures on behalf of either Alice or Bob. There exists some unidirectional one-use and multi-use (a message can be re-signed a polynomial number of times) proxy re-signature schemes. In some scenarios of big data, it is required to design unidirectional infinite-use (a message can be re-signed infinite number of times) proxy re-signature schemes. In this paper, we propose the first unidirectional infinite-use proxy re-signature scheme and identity-based unidirectional infinite-use proxy re-signature scheme with private re-signature keys based on lattice and prove that they are secure in the random oracle model.



中文翻译:

具有私有重新签名密钥的基于格的单向无限使用代理重新签名

在代理重新签名方案中,半信任的代理可以在同一消息上将爱丽丝(也称为委托人)的签名转换为鲍勃(也称为委托人)的签名。但是,代理本身不能代表Alice或Bob产生任何签名。存在一些单向的一次使用和多次使用(消息可以被多次多项式签名)代理重新签名方案。在大数据的某些情况下,需要设计单向无限使用(消息可以无限次重新签名)代理重新签名方案。在本文中,

更新日期:2021-04-16
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