Faster Yet Safer: Logging System Via Fixed-Key Blockcipher
Faster Yet Safer: Logging System Via Fixed-Key Blockcipher
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发表时间：
2022
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通讯作者：
V. Hoang;Cong Wu;Xin Yuan
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作者：
V. Hoang;Cong Wu;Xin Yuan
系统日志对于法医分析至关重要，但是要有用，它们需要防盗。 ，所有其他记录系统都会通过PACCAGNELLA等人的攻击（CCS 2020）。是在固定的，已知的键上使用AE，而此技巧是在安全分布式计算中广泛使用的，这是第一次在对称键密码学领域中找到应用程序。
System logs are crucial for forensic analysis, but to be useful, they need to be tamper-proof. To protect the logs, a number of secure logging systems have been proposed from both academia and the industry. Unfortunately, except for the recent KennyLoggings construction, all other logging systems are broken by an attack of Paccagnella et al. (CCS 2020). In this work, we build a secure logging system that improves KennyLoggings in several fronts: adoptability, security, and performance. Our key insight for performance gain is to use AES on a fixed, known key. While this trick is widely used in secure distributed computing, this is the first time it has found an application in the area of symmetric-key cryptography.