[PATCHv2 00/13] nvme: In-band authentication support

Sagi Grimberg sagi at grimberg.me
Tue Aug 17 14:21:30 PDT 2021


> Hi all,
> 
> recent updates to the NVMe spec have added definitions for in-band
> authentication, and seeing that it provides some real benefit
> especially for NVMe-TCP here's an attempt to implement it.
> 
> Tricky bit here is that the specification orients itself on TLS 1.3,
> but supports only the FFDHE groups. Which of course the kernel doesn't
> support. I've been able to come up with a patch for this, but as this
> is my first attempt to fix anything in the crypto area I would invite
> people more familiar with these matters to have a look.
> 
> Also note that this is just for in-band authentication. Secure
> concatenation (ie starting TLS with the negotiated parameters) is not
> implemented; one would need to update the kernel TLS implementation
> for this, which at this time is beyond scope.
> 
> As usual, comments and reviews are welcome.

Hey Hannes,

First, can you also send the nvme-cli/nvmetcli bits as well?

Second, one thing that is not clear to me here is how this
works with the discovery log page.

If the user issues a discovery log page to establish connections
to the controllers entries, where it picks the appropriate
secret?

In other words, when the user runs connect-all, how does it handle
the secrets based on the content of the discovery log-page?



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