随机数生成器中的信息熵分析

The Analysis of Entropy in the Random Number Generators

每个在加密系统中的组件都会为它的安全性受到指责,一个明显的错误可能导致一个系统其他方面的崩溃。密码学的随机生成数据经常被使用在如密钥、商业和初始化向量中。使用一个好的RNG对每一个组件来说都是必须的。本文从FreeBSD/Alpha内核的漏洞开始,并重点阐述设计、分析RNG的一些具体实现技术。

Every component in a cryptosystem is critical for its security. A single failure could bring down all the others. Cryptographic random numbers are often used as keys, padding, salt and initialization vectors. Using a good RNG for each of these components is essential. This article emphasizes some technologies on the design and analysis of RNG from a bug of FreeBSD / Alpha's core.