Attack on Asprotect SKE Activation Key

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1  Abstract........................................................2
2  Key Replace.....................................................3
2.1  Get the EncryptionConst.......................................................................................................3
2.2  Create a new project............................................................................................................11
2.3  Replace P5 P6 P7.................................................................................................................13
2.4  Patch CRC check.................................................................................................................18
3  Attack on Activation Key.......................................19
3.1  Role of the EncryptionConst...............................................................................................19
3.2  Brute Force Attack on EncryptionConst...........................................................................23
3.3  Another Example.................................................................................................................24
4  About Algorthm.................................................26
5  Conclusion.....................................................27
6  Greetings......................................................27

Keywords

Asprotect, RSA, EncryptionConst, MD5, RC4