Re: [PATCH 10/8] modsign: Allow password to be specified for signing key

[David Woodhouse]

On Tue, 2015-05-19 at 15:14 -0400, Mimi Zohar wrote:
> On Tue, 2015-05-19 at 19:48 +0100, David Howells wrote:
> > Mimi Zohar <zohar@xxxxxxxxxxxxxxxxxx> wrote:
> > 
> > > Definitely better.  (FYI, Dmitry's modsig patches from 2012 used the
> > > keyring for safely storing a password. )
> 
> Without the environment variable set, there's a pop up prompt to enter
> the pin.  A pain to have to enter for each and every kernel module, but
> definitely a nice option.

Right. In fact now that sign-file is written in C and not having to call
out to /usr/bin/openssl for each signature, we *could* authenticate to
the PKCS#11 token (or load the private key from the file) just once and
sign all the modules in a *single* invocation.

So you'd only be asked for the password *once*.

The make rules to achieve that are somewhat non-trivial, but it was an
idea we had in our minds when we settled on doing it in C rather than
scripting it.

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@xxxxxxxxx                              Intel Corporation

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