authentication - What is a hardware-id? -

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some forums regularly visit sell premium programs, , prevent them being leaked use hardware-id authentication. is, first send program run grab hwid, tell them hwid, store in database, send actual program.

if hwid isn't in database, program won't run. hardware-id, , how generated? why hwid different depending on programmer sends me hwid-grabber?

a hardware id (hopefully) unique identifier generated serial numbers present in such things cpu , network card. there no standard algorithm, why varies between individual developers.

a previous question discussed algorithms.

how fast hardware-id in c#?


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