[AFS3-std] rxgk draft updates

[Benjamin Kaduk]

On Wed, 2 Jan 2013, Simon Wilkinson wrote:

>
> On 2 Jan 2013, at 22:28, Benjamin Kaduk wrote:
>
>> In addition to the introduction of RXGK com_err codes, I also pushed a 
>> couple of commits from Mike Meffie.  The first one is a reordering the 
>> discussion of auth-only, integrity protection, and encryption for 
>> packet handling, so as to match up with the order that the security 
>> levels are introduced in.  There's also some clarification of how 
>> packet handling works for RXGK_AUTH, along with explicit diagrams for 
>> the get_mic input blob and the on-the-wire data.  Thanks, Mike!
>
> In f39602cbebebeb777f7e0fd1d4ac90ef4c3d3a6e Mike has "The 
> RXGK_CLIENT_MIC_PACKET key" and "The RXGK_SERVER_MIC_PACKET key". These 
> are not keys, they are key usage values, as noted in the original text.
>
> Also, the second piece of artwork suggests that the MIC will be an exact 
> multiple of 4 bytes - I don't think we actually have any such guarantee 
> from the RFC3961 profiles, and the danger is that this suggests that the 
> payload will be word aligned within the packet.

Attempts at fixing in:
78dad2d Use less-deceptive art for AUTH
57b0a21 Fix typo

-Ben