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help me,how to make a copy???
https://forum.yubico.com/viewtopic.php?f=30&t=2567		 Page 1 of 1
Author:  sunruibt [ Sun Feb 12, 2017 10:53 pm ]
Post subject:  help me,how to make a copy???
help me,how to make one yubikey entirely copied to another yubikey?
If I have 2 yubikeys,is it must same size and model?
Now I have a yubikey that YubiKey NEO $50,I wanna buy another one,should I buy the YubiKey NEO $50 or cheap yubikey???

One yubikey can only be plugged into a USB port 100,000 times and will be unusable,where can I find out how many times be displayed via YubiKey Personalization Tool or official tool https://www.yubico.com/support/knowledg ... downloads/

And how to update firmware of the yubikey???

I use windows 7,help me,thanks :?:
Please give more pictures to help me...
Author:  Sevo [ Wed Mar 15, 2017 9:58 am ]
Post subject:  Re: help me,how to make a copy???
Can't be done - if it were possible, you would have to consider the Yubikey compromised the very moment you stick it into a untrusted computer (which is the whole purpose of it). The relevant secret keys are part of the device, and can only be extracted destructively (grinding down to the bare chip and inspecting cell states with an electron microscope), and not written at all except at manufacturing time or by in-device generation.

Usually, security protocols will either permit key backup or the use of alternate keys, so that is not as much of an issue as you may think. Other than that you will have to register a secondary device at each service you use rather than simply duplicating the device.
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