Question

I want to create an encryption with java.
Is there anyway to get CPU Id or anything that be unique in PC such as BIOS or …

for example System.getCpuId(); it is just an example

Thanks a lot …

Answer 1

if you need unique id you can use UUID :

import java.util.UUID;

public class GenerateUUID {


      public static final void main(String... aArgs){
        //generate random UUIDs
        UUID idOne = UUID.randomUUID();
        UUID idTwo = UUID.randomUUID();
        log("UUID One: " + idOne);
        log("UUID Two: " + idTwo);
      }

      private static void log(Object aObject){
        System.out.println( String.valueOf(aObject) );
      }
    } 

Example run :

>java -cp . GenerateUUID
UUID One: 067e6162-3b6f-4ae2-a171-2470b63dff00 
UUID Two: 54947df8-0e9e-4471-a2f9-9af509fb5889