I am wondering if anyone here can definitively say whether the ROCA vulnerability (CVE-2017-15361) described here https://crocs.fi.muni.cz/public/papers/rsa_ccs17 when it occurs in a subkey will make the private key vulnerable?
I can't find anyone talking about this particular issue. Assuming that the secret key was generated outside of an Infineon chip, but that subsequently subkeys were generated by a chip with the ROCA vulnerability, does that compromise the main private key, or only the subkey? Some sites refuse to accept public keys with ROCA-affected subkeys even if the subkeys have been revoked. However, some tools appear to differentiate between the two. If, for example, I use https://keychest.net/roca to test my public key, the test result for my main key is "safe". However, the test result for the subkeys is, "Subject to ROCA, insecure." What's the right way to interpret this information? Thanks! Shannon
_______________________________________________ Gnupg-users mailing list Gnupgemail@example.com http://lists.gnupg.org/mailman/listinfo/gnupg-users