![]() You could also look at all the drivers currently loaded and use that as a method, which Windows itself has used and means a hard drive taken and inserted in another system won't work. How you do this will depend on your language, but it is definitely possible. Since uuid.getnode() returns a random 48 bits on failure, and those 48 bits aren't secure, then you are much better off just using something like (N).Īll that said, you can identify a Windows computer to a small group, even if it's not unique, by looking at the key. Of course, any of those bits of hardware could be swapped out. The UUID of the computer doesn't exist but often certain pieces of hardware have unique identifiers such as the CPU and any network cards. ![]() Uuid.getnode() in python returns the MAC address of one of the network interfaces installed - if there are none, it returns a random 48-bit number with the eight bit set to none as per RFC 4122.
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