ajalt / python-sha1 Goto Github PK
View Code? Open in Web Editor NEWAn implementation of the SHA-1 hashing algorithm in pure python.
License: MIT License
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saylib alexvgx pombredanne jake-jake-jake wimpykid26 danilovazb ramorris3 b-rich oliavd woodnsec starlight3 cfahlgren1 cbettte dzluo shnnxn morristech riannek tarun14110 imbipulk0204 mjbriggs jorgruen fkuersch patelriki28 alokgoldy mpgiii mlk0718 honocorp left-hai blazeqin calvinlf bjornfjohansson calugc indiah123 haydenmct panhaolin2001 kasinadhsarma samuelo1python-sha1's Issues
Is the future import needed for anything?
Hey,
a quick question... is the line
from __future__ import print_function, unicode_literals
really needed for anything? It works without it for me and it doesn't confuse me with python3 unicode literals in python2 code
Incorrect hash on stdin input with \r\n line endings for Python < 3.1
Issue
If a file with \r\n line endings is read through stdin, Python will strip the \r bytes, leading to an incorrect hash. The file.detch() function allows us to read the data correctly as binary, but this funciton is new in Python 3.1.
Example
$ unix2dos test.py
unix2dos: converting file test.py to DOS format ...
$ python sha1.py test.py
sha1-digest: 9e3a331958bc44d6c0c94ede204a89069f26e582
$ python sha1.py < test.py
sha1-digest: 13ebe55e971dd92b723795c8f2b1ae31ef32cb28
$ sha1sum test.py
9e3a331958bc44d6c0c94ede204a89069f26e582 *test.py
Workaround
Setting the PYTHONBUFFERED variable, or calling python with the -u flag will open stdin in binary mode.
$ PYTHONBUFFERED=x python sha1.py test.py
sha1-digest: 9e3a331958bc44d6c0c94ede204a89069f26e582
$ python -u sha1.py test.py
sha1-digest: 9e3a331958bc44d6c0c94ede204a89069f26e582
Getting hash of 1GB file under windows throws an error
>sha1.py kali-2.0.1-rpi.img.xz
Traceback (most recent call last):
File "D:\python-sha1\sha1.py", line 121, in <module>
data = f.read()
MemoryError
I don't know what is problem but it has place to be. The size of kali-2.0.1-rpi.img.xz is 1038MB.
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