Hello, You need to emulate an OpenPGP via Host Card Emulation.
You can get necessary parts from here: 1. OpenPGP applet. Try this: https://github.com/Yubico/ykneo-openpgp or This: https://github.com/martinpaljak/AppletPlayground 2. Emulator for running the applet code in Android: https://github.com/martinpaljak/vJCRE I have some code that did exactly that but was not published because of some technical limitation not related to possible software only OpenPGP: https://github.com/martinpaljak/mobiil-idkaart If you are capable of creating Android software with a GUI, I could help with the non-Android-GUI issues. Martin -- Martin +372 515 6495 On Fri, Feb 13, 2015 at 1:55 AM, NIIBE Yutaka <gni...@fsij.org> wrote: > 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 _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
