Author lemburg
Recipients Arach, Arfrever, Huzaifa.Sidhpurwala, Jim.Jewett, Mark.Shannon, PaulMcMillan, Zhiping.Deng, alex, barry, benjamin.peterson, christian.heimes, dmalcolm, eric.snow, fx5, georg.brandl, grahamd, gregory.p.smith, gvanrossum, gz, haypo, jcea, lemburg, loewis, mark.dickinson, merwok, neologix, pitrou, skorgu, skrah, terry.reedy, tim.peters, v+python, zbysz
Date 2012-02-08.13:10:39
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Content
Dave Malcolm wrote:
> 
> If anyone is aware of an attack via numeric hashing that's actually
> possible, please let me know (privately).  I believe only specific apps
> could be affected, and I'm not aware of any such specific apps.

I'm not sure what you'd like to see.

Any application reading user provided data from a file, database,
web, etc. is vulnerable to the attack, if it uses the read numeric
data as keys in a dictionary.

The most common use case for this is a dictionary mapping codes or
IDs to strings or objects, e.g. for caching purposes, to find a list
of unique IDs, checking for duplicates, etc.

This also works indirectly on 32-bit platforms, e.g. via date/time
or IP address values that get converted to key integers.
History
Date User Action Args
2012-02-08 13:10:40lemburgsetrecipients: + lemburg, gvanrossum, tim.peters, loewis, barry, georg.brandl, terry.reedy, gregory.p.smith, jcea, mark.dickinson, pitrou, haypo, christian.heimes, benjamin.peterson, merwok, grahamd, Arfrever, v+python, alex, zbysz, skrah, dmalcolm, gz, neologix, Arach, Mark.Shannon, eric.snow, Zhiping.Deng, Huzaifa.Sidhpurwala, Jim.Jewett, PaulMcMillan, fx5, skorgu
2012-02-08 13:10:39lemburglinkissue13703 messages
2012-02-08 13:10:39lemburgcreate