Escrowable Identity-Based Authenticated Key Agreement in the Standard Model

CHEN Ming

doi:10.3969/j.issn.0372-2112.2015.10.012

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Escrowable Identity-Based Authenticated Key Agreement in the Standard Model

更新时间：2025-07-16

- Escrowable Identity-Based Authenticated Key Agreement in the Standard Model
- Acta Electronica Sinica Vol. 43, Issue 10, Pages: 1954-1962(2015)
- 作者机构：
  
  1. 宜春学院数学与计算机科学学院,江西,宜春,336000
  2. 宜春学院数学与计算机科学学院,江西,宜春,336000
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2015.10.012
  CLC： TP309
- Published：2015
- 稿件说明：
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CHEN Ming. Escrowable Identity-Based Authenticated Key Agreement in the Standard Model[J]. Acta Electronica Sinica, 2015, 43(10): 1954-1962.
DOI：

CHEN Ming. Escrowable Identity-Based Authenticated Key Agreement in the Standard Model[J]. Acta Electronica Sinica, 2015, 43(10): 1954-1962. DOI： 10.3969/j.issn.0372-2112.2015.10.012.

摘要

现有会话密钥可托管的ID-AKA(IDentity-based Authenticated Key Agreement)协议要么存在已知安全缺陷

要么是在随机预言模型下可证明安全.基于Boneh等人定义的安全陷门函数

提出一种会话密钥可托管的ID-AKA协议.在ID-BJM模型基础上

扩展定义了ID-AKA协议分析的标准安全模型.扩展模型将安全游戏划分为两个阶段

去除了随机预言机

能完备地模拟不同类型敌手的行为.在扩展模型下

新协议的安全性被规约为多项式时间敌手求解判定性BDH(Bilinear Diffie-Hellman)难题和判定性BDHI(Bilinear Diffie-Hellman Inversion)难题

具有可证明安全性.

Abstract

In recent years

a few escrowable ID-AKA protocols have been proposed

but none of them are provably secure in the standard model while simultaneously having strong security.The main issue is how a simulator is able to deal with reveal-queries without the help of random oracles.In this paper

we presented a method incorporating a built-in security trapdoor function in an escrowable ID-AKA protocol.The security of our protocol relied on the hardness of the decisional Bilinear Diffie-Hellman Inversion problem.Meanwhile

we extended the security game of ID-AKA protocols to resist stronger adversarial powers

which allowed our security game to capture additional security properties such as perfect forward secrecy

ephemeral secrets reveal resistance and so on.Assuming that no adversary can obtain the master secret key and each party in the protocol has at least one uncompromised secret

our scheme is secure.

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Related Institution

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