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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. hanno‏ @hanno 10 Jan 2019
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      Is there already an established "best solution" to use @troyhunt s password hash list locally? (I.e. good compromise between data storage requirement+speed)

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    2. hanno‏ @hanno 10 Jan 2019
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      what I thought so far: truncating hashes to 128 bit probably does not produce any significant false positives rate. Hashes can be stored in binary, unpacked. (packing saves a little bit of storage, because it's a sorted list, but not enough to make it worthy). Binary search.

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    3. Diego Elio Pettenò‏ @flameeyes 10 Jan 2019
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      Replying to @hanno

      @marcan42 had something with bloom filtering. I think on his GitHub

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      Hector Martin‏ @marcan42 10 Jan 2019
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      Replying to @flameeyes @hanno

      This: https://gist.github.com/marcan/23e1ec416bf884dcd7f0e635ce5f2724 … I haven't imported v3 into it yet, but you can do it yourself pretty easily. Just make sure you put the filter on a ramdisk while building it, since otherwise it will take forever.

      2:05 AM - 10 Jan 2019
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        1. hanno‏ @hanno 10 Jan 2019
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          Replying to @marcan42 @flameeyes

          okay, contrary to my expectation it seems the bloom filter makes this significantly more efficient in space requirements. (though I have to use something that's kinda "magic" or I have to learn things :-)

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        1. Guy Barnhart-Magen‏ @barnhartguy 10 Jan 2019
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          Replying to @marcan42 @hanno @flameeyes

          Bloom filters are something worth learning about 😉

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