Re: status: establishing a PGP web of trust

From: Greg KH
Date: Sun Oct 02 2011 - 19:09:33 EST

On Mon, Oct 03, 2011 at 08:02:39AM +0900, Nobuhiro Iwamatsu wrote:
> Hi,
> 2011/10/1 Greg KH <greg@xxxxxxxxx>:
> > On Fri, Sep 30, 2011 at 04:50:37PM -0700, H. Peter Anvin wrote:
> >> 2. Create a new PGP/GPG key, and also generate a key revocation
> >>    certificate (but don't import it anywhere -- save it for the
> >>    future) for your new key.  In the near future we are considering
> >>    setting up an escrow service for key revocation certificates.
> >>
> >>    I recommend using a 4096-bit RSA key.  Given how fast computers are
> >>    these days, there is no reason to use a shorter key.  DSA keys
> >>    should be considered obsolete; substantial weaknesses have been
> >>    found in DSA.
> >>
> >>    $ gpg --gen-key
> >>    $ gpg -u <key ID> -o <key ID>.revoke --gen-revoke
> >
> > I would recommend a physical access device for your new gpg key that you
> > create.  I've heard good things about this USB device:
> >
> > and am trying to have a bunch of them at the Kernel Summit this year to
> > hand out to people if they want one.
> >
> > There are also lots of other smart-card form-factor devices that can be
> > used to store GPG keys.  Some places to purchase these can be found at
> > links from the above site.
> Maybe you know , there are the following projects, too.

Yes, I think I saw the presentation about this at the last LinuxCon
Tokyo (or was it the year before?)

It looks like a great project, but sometimes you want something already
built as you have enough hobbies as it is :)


greg k-h
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at