Chris Kite Programming, Computer Security, Etc.

Archive for the ‘Cryptography’ Category

Cracking a Software License Scheme

03.31.2009 · Posted in Cryptography, Security

In his latest blog post, Andy Sloane issued a challenge to create a key-generator for his bespoke software licensing scheme. Looking through his code, I quickly found that he was using RSA, and that valid keys decrypted to 12345678 under a hardcoded RSA public key. In my response on the ...

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