Re: SSH keys - draft-ietf-netmod-system-mgmt

On Wed, Apr 30, 2014 at 12:32:50PM -0400, Jeffrey Hutzelman wrote:
> On Wed, 2014-04-30 at 08:49 +0200, Niels Möller wrote:
> > >     However, if we also keep the leaf algorithm, we need to specify
> > >     what happens if the leaf algorithm has a value that is different
> > >     from the value embedded in the key blob.
> > 
> > Right, eliminating this redundancy makes things simpler.
> 
> It would, except you can't eliminate it.  The second copy of the
> algorithm name is part of the key data format for _certain public key
> algorithms_, but not necessarily for all of them.
> 

Hm. Are you saying RFC 4716 is broken or only applicable to certain
subset of public key algorithms? In which case would the public key
not follow [RFC4253], Section 6.6:

         string    certificate or public key format identifier
         byte[n]   key/certificate data

I am just trying to understand this.

/js

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Juergen Schoenwaelder           Jacobs University Bremen gGmbH
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