Defensive programming

Jack Diederich jack at
Sun Jun 1 12:20:19 CEST 2003

On Sun, Jun 01, 2003 at 10:53:10AM +0100, Robin Becker wrote:
> This recently slashdotted paper
> suggests that many common algorithms (including perl hashing) are open to low input
> DoS attack.
> I know that the Timbot and other python 'bots are pretty smart, but are there python
> algorithms that suffer the same vulnerabilities?

The author brought this up on python-dev and the 'bots did indeed
disect the arguments.  The verdict was that it is interesting but not a
problem (or at least a solvable problem) in practice.  Specific problems are 
best solved at specific layers, and DoS attacks that eat CPU are best solved
at the operating system level.

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