SHA512 / 256是真的还是Sasquatch？ [英] SHA512/256 Is it real or is it a Sasquatch?

问题描述

我知道有一个称为SHA512 / 256的哈希，它基本上具有512哈希的强度，但被截断以返回一个较小的256长度值。但是，我找不到任何示例，任何人都可以指向我的示例代码或SHA512 / 256
只是一个C＃Sasquatch？ 

I understand there is a hash referred to as SHA512/256 which basically has the strength of the 512 hash, but is truncated to return a smaller 256 length value. However, I cannot find any examples, can anyone point me to example code or is the SHA512/256 just a C# Sasquatch? 

谢谢

推荐答案

虽然SHA512 / 256的加密算法与SHA512本身相同，但
初始化常数不同。

[quote]

In SHA-512 init（）函数将初始状态设置为
的前64位，即前8个素数的平方根的小数部分。在SHA-384中，这些常量被第九到第十六个素数的平方根的小数部分所取代。

In SHA-512 the init() function sets the initial state to the first 64 bits of the fractional parts of the square roots of the first 8 prime numbers. In SHA-384 these constants are replaced with the fractional parts of the square roots of the ninth through sixteenth prime numbers.

通过类比，我们建议SHA-512/256的初始化常量将是
第十七至第二十四个素数的小数部分。

By analogy, we propose that the initialization constants for SHA-512/256 would be the fractional parts of the seventeenth through twenty-fourth prime numbers.

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