Hello, Let me record a bit of history.
On 02/13/2015 01:19 AM, Brian Minton wrote: > I recently got a new Nexus 5, with NFC. Supposedly it supports ISO > 7816-4. Is there any possibility of, for instance, porting gnuk to > android? I'd love to use my smartphone as a smartcard. Of course, the > smartphone wouldn't have as many anti-tampering features as a typical > smart card, so this would be mainly for educational purposes rather > than true security. In fact, Ueno (cc-ed) did something like that around 2007-2008. It was the precursor of Gnuk. IIRC, he wrote a paper describing his work. If he still has the code, it would help you. Since I didn't like smartphone (which is smart enough to cheat its users, by my interpretation), I wrote the code for ATmega 20MHz to implement OpenPGPcard functionality, inspired by his work. It took five second to sign RSA-1024. I demonstraded this work at FSFS 2008 in India, then, I demonstrated "gpg --card-status" worked with ATmega implementation in Japan Linux Symposium 2009, in Akihabara, Tokyo. After that, around 2010, experts claimed that we should not use RSA-1024 any more. So, I gave up my ATmega work, and sought another MCU candidate. That's the start of Gnuk with STM32F103. P.S. The ATmega implementation of RSA was done when I was an employee of National Institute of AIST, Japan, and it was registered as the work under AIST (perhaps, copyrighted by AIST). I left the code there when I left AIST in September, 2010. If interested, please contact AIST (not me). -- _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
