紧致安全的基于身份的签名方案

本文提出了第一个紧致安全的基于身份的签名 (IBS) 方案. 我们的构造基于Bellare等人提出的基于证书思想的通用转化方法, 包括两个组件, 即选择消息攻击下不可伪造安全(EUF-CMA安全)的签名方案 S, 和多用户场景中选择消息攻击&动态密钥窃取攻击下不可伪造安全(MU-EUF-CMA corr安全)的签名方案 S~. 组件 S的公私钥用作IBS的主公钥和主私钥, 用户id的签名私钥包含了组件 S~所产生的一对公私钥, 以及主私钥对id和 S~的公钥的签名证书. 用户对消息的签名包含了组件 S~的公钥和证书, 以及 S~的私钥对此消息的签名. IBS的安全性可以紧致归约到组件...

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Published inJournal of Cryptologic Research Vol. 8; no. 1; p. 132
Main Authors 刘翔宇, 刘胜利, 谷大武
Format Journal Article
LanguageChinese
Published Beijing Chinese Association for Cryptologic Research, Journal of Cryptologic Research 01.01.2021
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Security
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Abstract 本文提出了第一个紧致安全的基于身份的签名 (IBS) 方案. 我们的构造基于Bellare等人提出的基于证书思想的通用转化方法, 包括两个组件, 即选择消息攻击下不可伪造安全(EUF-CMA安全)的签名方案 S, 和多用户场景中选择消息攻击&动态密钥窃取攻击下不可伪造安全(MU-EUF-CMA corr安全)的签名方案 S~. 组件 S的公私钥用作IBS的主公钥和主私钥, 用户id的签名私钥包含了组件 S~所产生的一对公私钥, 以及主私钥对id和 S~的公钥的签名证书. 用户对消息的签名包含了组件 S~的公钥和证书, 以及 S~的私钥对此消息的签名. IBS的安全性可以紧致归约到组件 S的EUF-CMA安全性和组件 S~的MU-EUF-CMA corr安全性. 最后, 我们给出了组件 S和 S~的实例化, 并分别在随机预言机模型和标准模型下得到了紧致 (与几乎紧致) EUF-CMA&CIA安全的IBS方案.
AbstractList 本文提出了第一个紧致安全的基于身份的签名 (IBS) 方案. 我们的构造基于Bellare等人提出的基于证书思想的通用转化方法, 包括两个组件, 即选择消息攻击下不可伪造安全(EUF-CMA安全)的签名方案 S, 和多用户场景中选择消息攻击&动态密钥窃取攻击下不可伪造安全(MU-EUF-CMA corr安全)的签名方案 S~. 组件 S的公私钥用作IBS的主公钥和主私钥, 用户id的签名私钥包含了组件 S~所产生的一对公私钥, 以及主私钥对id和 S~的公钥的签名证书. 用户对消息的签名包含了组件 S~的公钥和证书, 以及 S~的私钥对此消息的签名. IBS的安全性可以紧致归约到组件 S的EUF-CMA安全性和组件 S~的MU-EUF-CMA corr安全性. 最后, 我们给出了组件 S和 S~的实例化, 并分别在随机预言机模型和标准模型下得到了紧致 (与几乎紧致) EUF-CMA&CIA安全的IBS方案.
Author 刘胜利
刘翔宇
谷大武
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Snippet 本文提出了第一个紧致安全的基于身份的签名 (IBS) 方案. 我们的构造基于Bellare等人提出的基于证书思想的通用转化方法, 包括两个组件, 即选择消息攻击下不可伪造安全(EUF-CMA安全)的签名方案 S, 和多用户场景中选择消息攻击&动态密钥窃取攻击下不可伪造安全(MU-EUF-CMA...
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Title 紧致安全的基于身份的签名方案
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