py5实现sha512_crypt.c [英] Python implementation of sha512_crypt.c

问题描述

我正在寻找一个100％的纯Python执行sha512_crypt.c，来自 http://www.akkadia.org/drepper/SHA-crypt.txt 。

我正在学习Python。我想理解代码（并将其与C代码进行比较，等等）。我不知道足够的Python来自己写 - 即使我这样做，我不会相信自己，得到它的权利。我没有这方面的专业知识。所以请不要回答这个问题，告诉我自己写代码。这不是我的问题。我正在寻找一个现有的 100％的Python实现，它提供与由Ulrich Drepper撰写的原始sha512_crypt.c。

只是为了确保我的问题清楚，我正在寻找的答案可能是：

1. 我确定该C代码的100％Python实现不存在。




2. 这是指向您可以下载的Python代码的链接。

b $ b

（虽然我不是在写特定的代码，但是我被要求在这里发表的讨论的结果，这个问题是，毕竟，学习Python代码。）

BTW，我知道这里有一个Java实现： ftp ：//ftp.arlut.utexas.edu/java_hashes/

我在寻找与Python等效的。

谢谢。

更新： james-磨坊回答了我的问题。但今天我刚刚了解了Nullege：用于Python源代码的搜索引擎

http：// www。 nullege.com/
这可能会在将来派上用场。

我还了解到startpage.com会接受filetype：py作为搜索字词，并返回一些好的结果。不幸的是，我尝试了与duckduckgo相同，并没有返回任何结果。

解决方案

签出 passlib 它似乎有一个纯粹的Python实现 SHA512 crypt ，它会回到：

这个类将使用第一个可能的两个后端：
stdlib crypt （），如果主机操作系统支持SHA512-Crypt（大多数Linux系统）。
一个纯python实现的SHA512-Crypt内置到passlib。
您可以通过调用get_backend（）方法查看正在使用的后端。

找到源代码： https://code.google.com/p/passlib/source /browse/passlib/handlers/sha2_crypt.py

I'm looking for a 100% pure Python implementation of sha512_crypt.c as taken from http://www.akkadia.org/drepper/SHA-crypt.txt.

I'm learning Python. I want to understand the code (and compare it to the C code, etc.). I don't know enough Python to write it myself -- even if I did, I wouldn't trust myself to get it right. I don't have that expertise. So please don't answer this question by telling me to go write the code myself. That's not my question. I am looking for an existing 100% Python implementation that gives the same output as the original sha512_crypt.c written by Ulrich Drepper.

Just to be sure my question is clear, answers I'm looking for are probably either:

1. "I know for sure that a 100% Python implementation of that C code doesn't exist."

2. "Here is the link to the Python code that you can download."

(Even though I'm not asking for help writing specific code, I was told to post here as a result of a meta discussion. This question is, after all, about studying Python code.)

BTW, I know there is a Java implementation here: ftp://ftp.arlut.utexas.edu/java_hashes/

I'm looking for the Python equivalent.

Thank you.

UPDATE: james-mills answered the question for me. But today I just learned about Nullege: A Search Engine for Python source code
http://www.nullege.com/ That could come in handy in the future.

I also learned that startpage.com will accept "filetype:py" as a search term and it returns some good results. Unfortunately, I tried the same with duckduckgo and it didn't return any results.

解决方案

Check out passlib it seems to have a pure Python implemtnation of SHA512 crypt that it falls back to:

This class will use the first available of two possible backends: stdlib crypt(), if the host OS supports SHA512-Crypt (most Linux systems). a pure python implementation of SHA512-Crypt built into passlib. You can see which backend is in use by calling the get_backend() method.

Found the source code: https://code.google.com/p/passlib/source/browse/passlib/handlers/sha2_crypt.py

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