Re: SSCrypto and Public Key Decryption
Re: SSCrypto and Public Key Decryption
- Subject: Re: SSCrypto and Public Key Decryption
- From: Andrew Farmer <email@hidden>
- Date: Sat, 17 Mar 2007 13:15:05 -0700
On 17 Mar 07, at 07:36, Hell's KItchen Hell's KItchen wrote:
I'm using SSCrypto in order to implement a shareware license scheme...
...
- (BOOL) verifyGeneratedKey:(NSString *) generatedEncodedLicense
withGivenAddress:(NSString *) address;
Can anyone tell me where I'm wrong in that code?
I know this isn't the problem you're trying to solve, but you're
using a function signature that'll jump out at even the most
inexperienced cracker like a sore thumb. Even if they can't generate
a key, they can easily replace the code for that function with a stub
that always returns YES.
Slava of Unsanity has written some excellent tips on how to make
software more difficult to pirate. They bear reading.
http://www.unsanity.org/archives/000101.php
As to your specific problem, it looks like someone's addressed that
on the pastebin.
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