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Re: Thinking about shareware prices... (was a question about NSDate inside userDefaults)
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Re: Thinking about shareware prices... (was a question about NSDate inside userDefaults)


  • Subject: Re: Thinking about shareware prices... (was a question about NSDate inside userDefaults)
  • From: Greg Hurrell <email@hidden>
  • Date: Sat, 10 Jan 2004 11:07:17 +1030

El 09/01/2004, a las 8:44, Finlay Dobbie escribis:

On 8 Jan 2004, at 18:16, Wai Liu wrote:

typically checksums the binary

Unfortunately this isn't reliable on OS X because prebinding can modify binaries on the user's computer at relatively arbitrary times.

-- Finlay

Thanks for the heads-up on this, Finlay. I have actually just implemented self-checksumming on my framework as a means of countering tampering (eg. users trying with a hex editor to edit serial number blacklists embedded in the binary).

I had no idea that pre-binding could foil my plans... will have to go and seek out some more info on it.

Cheers
Greg
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References: 
 >Re: Thinking about shareware prices... (was a question about NSDate inside userDefaults) (From: Wai Liu <email@hidden>)
 >Re: Thinking about shareware prices... (was a question about NSDate inside userDefaults) (From: Finlay Dobbie <email@hidden>)

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