Random Solaris开发/随机

你好

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哪种算法实现Solaris的dev/random？是taht Yarrow-160还是Yarrow-256，或者算法与Linux中的相同？是否有文档/链接？我已经找了很多，但是找不到。提前感谢。

也许OpenSolaris源代码，特别是

/src/uts/common/crypto/io/swrand.c

，有一些线索：

/*
 * Software based random number provider for the Kernel Cryptographic
 * Framework (KCF). This provider periodically collects unpredictable input
 * from external sources and processes it into a pool of entropy (randomness)
 * in order to satisfy requests for random bits from kCF. It implements
 * software-based mixing, extraction, and generation algorithms.
 *
 * A history note: The software-based algorithms in this file used to be
 * part of the /dev/random driver.
 */

浏览该文件：PRNG从启动开始用高分辨率时间初始化，当前TOD和物理内存状态和值是通过重复SHA1散列和附加熵池混合（yarrow规范中的“搅动”）生成的。SHA1是160位的

也与该文件相关：

#define MINEXTRACTBITS      160 /* Min entropy level for extraction */

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从这个简短的分析来看，Solaris的

/dev/random

看起来像是Yarrow-160实现。

也许OpenSolaris源代码，特别是

/src/uts/common/crypto/io/swrand.c

，有一些线索：

/*
 * Software based random number provider for the Kernel Cryptographic
 * Framework (KCF). This provider periodically collects unpredictable input
 * from external sources and processes it into a pool of entropy (randomness)
 * in order to satisfy requests for random bits from kCF. It implements
 * software-based mixing, extraction, and generation algorithms.
 *
 * A history note: The software-based algorithms in this file used to be
 * part of the /dev/random driver.
 */

浏览该文件：PRNG从启动开始用高分辨率时间初始化，当前TOD和物理内存状态和值是通过重复SHA1散列和附加熵池混合（yarrow规范中的“搅动”）生成的。SHA1是160位的

也与该文件相关：

#define MINEXTRACTBITS      160 /* Min entropy level for extraction */

---

从这个简短的分析来看，Solaris的

/dev/random

看起来像是Yarrow-160实现。

什么版本的Solaris？什么版本的Solaris？