just to give you an idea of the speed up: a 3.3 mb zip file extracted using the current all-python implementation on my machine (win xp 1.67Ghz 1.5GB) takes approximately 38 seconds.
the same file when extracted using c implementation takes 0.4 seconds. --shashank On Sun, Aug 30, 2009 at 6:35 PM, <exar...@twistedmatrix.com> wrote: > On 12:59 pm, st...@pearwood.info wrote: > >> On Sun, 30 Aug 2009 06:55:33 pm Martin v. Löwis wrote: >> >>> > Does it sound worthy enough to create a patch for and integrate >>> > into python itself? >>> >>> Probably not, given that people think that the algorithm itself is >>> fairly useless. >>> >> >> I would think that for most people, the threat model isn't "the CIA is >> reading my files" but "my little brother or nosey co-worker is reading >> my files", and for that, zip encryption with a good password is >> probably perfectly adequate. E.g. OpenOffice uses it for >> password-protected documents. >> >> Given that Python already supports ZIP decryption (as it should), are >> there any reasons to prefer the current pure-Python implementation over >> a faster version? >> > > Given that the use case is "protect my biology homework from my little > brother", how fast does the implementation really need to be? Is speeding > it up from 0.1 seconds to 0.001 seconds worth the potential new problems > that come with more C code (more code to maintain, less portability to other > runtimes, potential for interpreter crashes or even arbitrary code execution > vulnerabilities from specially crafted files)? > > Jean-Paul > > _______________________________________________ > 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/shashank.sunny.singh%40gmail.com > >
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