Proxmark3 community
Research, development and trades concerning the powerful Proxmark3 device.
Remember; sharing is caring. Bring something back to the community.
"Learn the tools of the trade the hard way." +Fravia
You are not logged in.
Announcement
Time changes and with it the technology
Proxmark3 @ discord
Users of this forum, please be aware that information stored on this site is not private.
Pages: 1
#1 2018-12-26 11:50:11
- iceman
- Administrator
- Registered: 2013-04-25
- Posts: 9,537
- Website
[RDV40] ROCA test
Started with Merlokk to add a new command emv roca, which will extract the public keys from contact / contactless card and test them against ROCA.
Now I am looking for a nice c implementation of ROCA, especially the improved roca test in python would be great to have a implementation of.
Offline
#2 2018-12-28 21:03:53
- iceman
- Administrator
- Registered: 2013-04-25
- Posts: 9,537
- Website
Re: [RDV40] ROCA test
Great! A working ROCA test and a PR for it. This is fun!
Offline
#3 2018-12-29 16:04:37
- iceman
- Administrator
- Registered: 2013-04-25
- Posts: 9,537
- Website
Re: [RDV40] ROCA test
Next step, once find a ROCA weak modulus we would need a solver.
I found these two ones. Sadly not a C implementation in sight.
Slow solver 1:
https://blog.cr.yp.to/20171105-infineon3.txt
Solver 2 limited for 512b RSA:
https://gitlab.com/jix/neca/blob/master/src/main.cpp
Offline
#4 2018-12-30 18:10:10
- iceman
- Administrator
- Registered: 2013-04-25
- Posts: 9,537
- Website
Re: [RDV40] ROCA test
And thanks to @renaud lifchitz I got some great tips
the PARI/GP
https://pari.math.u-bordeaux.fr/dochtml … oppersmith
// rsa approaches
https://speakerdeck.com/rlifchitz/15-wa … a-security
Offline
Pages: 1