Is there any way to build large no of exe files work on the basis of macid

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VS2008

i want to create a desktop application which run only in one system .it will check the mac id of the system if the mac id is equal it should work otherwise it should not.i have collection of hundreds of mac id . this idea is similar to send one letter content having several TO address

Posted 16-Jul-11 18:02pm

vishnulalr

Updated 16-Jul-11 18:03pm

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Manfred Rudolf Bihy · Answer 1 · 2011-07-16T19:24:00

That's quite easy to achieve by using MD5 hashing. Hash all your MAC IDs and distribute them along with your application applying some salt also. To authenticate use the MAC ID of the system, hash it and see if it's contained in the list of allowed IDs. The salt is the critical piece here. Since it's needed for the authentication it will be embedded in your application and thusly exposed to hacking.

A more secure approach is to use asymetric cryptography with a private and a public key. Use the private key to encrypt the salt mentioned in above scenario. The public key will be used by your application to decrypt and use the salt as before mentioned.

Best Regards,

—MRB