[issue14621] Hash function is not randomized properly

Vlado Boza report at bugs.python.org
Fri Apr 20 02:21:15 CEST 2012


Vlado Boza <usama at ksp.sk> added the comment:

>I tried this script on Linux 32 bits and Linux 64 bits: I didn't see any >collision. What is your operating system and the version of your >operating system please?

uname -a
Linux 3.0.0-17-generic #30-Ubuntu SMP Thu Mar 8 20:45:39 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux


Anyway you should be able to do following (in 32bits):
- generate two colliding keys (with some random seed)
- try these keys with different random seeds and they will collide ~1 out of 256 times

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<http://bugs.python.org/issue14621>
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