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#1 2018-12-26 11:50:11
- iceman
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- Registered: 2013-04-25
- Posts: 9,538
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[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.
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#2 2018-12-28 21:03:53
- iceman
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- Registered: 2013-04-25
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Re: [RDV40] ROCA test
Great! A working ROCA test and a PR for it. This is fun!
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#3 2018-12-29 16:04:37
- iceman
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- Registered: 2013-04-25
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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
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#4 2018-12-30 18:10:10
- iceman
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- Registered: 2013-04-25
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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
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