> The last solution is very simple: count collision and raise an > exception if it hits a limit. The path is something like 10 lines > whereas the randomized hash is more close to 500 lines, add a new > file, change Visual Studio project file, etc. First I thaught that it > would break more applications than the randomized hash
The main issue with that approach is that it allows a new kind of attack. An attacker now needs to find 1000 colliding keys, and submit them one-by-one into a database. The limit will not trigger, as those are just database insertions. Now, if the applications also as a need to read the entire database table into a dictionary, that will suddenly break, and not for the attacker (which would be ok), but for the regular user of the application or the site administrator. So it may be that this approach actually simplifies the attack, making the cure worse than the disease. Regards, Martin _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
