Yubico Forum
https://forum.yubico.com/

Extracting PGP key material from a Yubikey Neo
https://forum.yubico.com/viewtopic.php?f=4&t=1787
Page 1 of 1

Author:  grepular [ Sun Mar 15, 2015 11:43 am ]
Post subject:  Extracting PGP key material from a Yubikey Neo

I have a Yubikey Neo. I enabled the PGP applet. I have copied my existing keys across to it and it all works fine as a smart card.

My question is this: If an attacker gets hold of my yubikey, how difficult would it be for them to extract my key material from it?

I also have an OpenPGP v2 SmartCard and know that it was specifically designed to make extracting the key material very difficult. It would only be possible using an electron microscope and a lot of skill...

Author:  Tom2 [ Mon Mar 16, 2015 10:05 am ]
Post subject:  Re: Extracting PGP key material from a Yubikey Neo

The Yubikey NEO uses an NXP secure element a700x

You can read the documentation about that chip and get an idea of how hard would be to extract keys from there.

https://www.yubico.com/2014/04/improvem ... y-attacks/

Page 1 of 1 All times are UTC + 1 hour
Powered by phpBB® Forum Software © phpBB Group
https://www.phpbb.com/