Marc-Andre Lemburg <m...@egenix.com> added the comment:

Eric Snow wrote:
> 
> Eric Snow <ericsnowcurren...@gmail.com> added the comment:
> 
>> The vulnerability is known since 2003 (Usenix 2003): read "Denial of
>> Service via Algorithmic Complexity Attacks" by Scott A. Crosby and Dan
>> S. Wallach.
> 
> Crosby started a meaningful thread on python-dev at that time similar to the 
> current one:
> 
>   http://mail.python.org/pipermail/python-dev/2003-May/035874.html
> 
> It includes a some good insight into the problem.

Thanks for the pointer. Some interesting postings...

Vulnerability of applications:
http://mail.python.org/pipermail/python-dev/2003-May/035887.html

Speed of hashing, portability and practical aspects:
http://mail.python.org/pipermail/python-dev/2003-May/035902.html

Changing the hash function:
http://mail.python.org/pipermail/python-dev/2003-May/035911.html
http://mail.python.org/pipermail/python-dev/2003-May/035915.html

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