LAVA:日志认证和验证算法

Edita Bajramovic, Christofer Fein, Marius Frinken, Paul Rösler, F. Freiling
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引用次数: 1

摘要

日志文件提供了关键计算机系统中进程运行的基本信息。如果攻击者修改了日志条目,那么关键的数字证据就会丢失。因此,人们设计了许多安全日志记录算法,每种算法在不同的假设下实现不同的安全目标。我们分析了这些算法,并确定了它们的基本安全特性。在一个通用的系统和攻击者模型中,我们将这些算法集成到一个称为LAVA的单一(可参数化的)“元”算法中,该算法具有安全特征的联合,并且可以参数化以产生以前算法的安全特征。我们提供了安全性和效率分析,并提供了一个Python模块,该模块可用于为取证和事件响应提供安全日志记录。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
LAVA: Log Authentication and Verification Algorithm
Log files provide essential information regarding the actions of processes in critical computer systems. If an attacker modifies log entries, then critical digital evidence is lost. Therefore, many algorithms for secure logging have been devised, each achieving different security goals under different assumptions. We analyze these algorithms and identify their essential security features. Within a common system and attacker model, we integrate these algorithms into a single (parameterizable) “meta” algorithm called LAVA that possesses the union of the security features and can be parameterized to yield the security features of former algorithms. We present a security and efficiency analysis and provide a Python module that can be used to provide secure logging for forensics and incident response.
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