项目名称: 弹性泄漏基础密码方案的构造与分析
项目编号: No.61272478
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 自动化技术、计算机技术
项目作者: 周永彬
作者单位: 中国科学院信息工程研究所
项目金额: 82万元
中文摘要: 弹性泄漏密码学是当前面向工程实践的密码学前沿研究热点,旨在探讨将可证明安全性方法与手段用于解决各类密码物理实现中所产生的一般性侧信息泄漏问题的可行性与实用性,进而为从源头上彻底解决侧信道攻击威胁的防御和/或削除问题提供一种可靠的科学方法与技术途径。本项目拟对弹性泄漏基础密码方案构造与分析中的若干核心与公开问题进行研究,主要包括:提出合理实用的侧信道安全性形式化刻画模型,剖析形式化安全性定义之间的关联性,探讨标准假设下或不依赖于特殊硬件支持的基础密码方案构造方法,发展通用的安全性证明技术,建立系统的实例化方法,提出信息泄漏适应能力的刻画与分析方法等。项目研究旨在为面向工程实践的安全密码实现的设计与分析提供基础概念工具与通用构造范例支持,为审视基础密码方案的信息泄露适应能力提供有效度量方法与实用刻画手段支持,推动可靠实用的侧信道安全性公理化体系的发展与建立。
中文关键词: 弹性泄露密码学;密码工具;物理安全性;侧信道攻击;模板攻击
英文摘要: Leakage resilient cryptography, one hotspot of current cryptologic reseraches, attempts to investigate the feasibility and practicability of applying well-established provalbe security methodologies and approaches within traditional black-box cryptography to address various unintended and unavoidable side-channel leakages from cryptographic implementations, and then provides sound and reliable approaches to counteract and/or eliminate serirous physical threats posed by side-channel attacks.The research topics of this project mainly include some core and open problems concerning the construction and analysis of leakage resilient cryptographic primitives, and they are as follows: to propose realistic and practical characterization models for side-channel security, to investigate relations among formal security notions, to study construction methodologies of leakage resilient cryptographic primitives under sound and standard assumptions and/or without any support of specific hardwares or devices, to develop sound reasoning security proof techniques, to establish systematic instantiation approaches of these primitives, and to present some security metrics to measure theorectical and practical leakage resilience of these cryptographic implementations.This project aims to provide some basic conceptual tools and uni
英文关键词: leakage resilient cryptography;cryptographic tools;physical security;side channel attacks;template attack