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Re: Fast hash of NSData?
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Re: Fast hash of NSData?


  • Subject: Re: Fast hash of NSData?
  • From: Quincey Morris <email@hidden>
  • Date: Sun, 01 Dec 2013 10:43:38 -0800

On Dec 1, 2013, at 09:51 , Kyle Sluder <email@hidden> wrote:

> That’s all well and good, but why are we still debating this approach when Mike Abdullah has posted a far superior scheme with an infinitely faster hash (file size), *zero* risk of data loss, and less performance penalty than using a low-collision hashing algorithm?

+1

> […] regardless of how infinitesimal the chance

On Dec 1, 2013, at 07:36 , Graham Cox <email@hidden> wrote:

> I’m thinking this is good enough, really. The odds of a particular user having two different image files that collide, and happening to add those exact images at once to our app must be astronomically low. Talk me out of it :)


I doubt I can talk you out of it, but the truth is that you — like every one of the rest of us, because we’ve got human brains — are really, really lousy at intuiting about randomness and probabilities. What we *think* isn’t worth the paper our emails are printed on.

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  • Follow-Ups:
    • Re: Fast hash of NSData?
      • From: Graham Cox <email@hidden>
    • Re: Fast hash of NSData?
      • From: Scott Ribe <email@hidden>
    • Re: Fast hash of NSData?
      • From: Kyle Sluder <email@hidden>
References: 
 >Re: Fast hash of NSData? (From: Graham Cox <email@hidden>)
 >Re: Fast hash of NSData? (From: Scott Ribe <email@hidden>)
 >Re: Fast hash of NSData? (From: Kyle Sluder <email@hidden>)

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