AUTH48 (part 2)

[bifurcation]

The AUTH48 PR (#199) got merged a little early. This PR is to capture the last couple of minor things.

For @juberti:

• Rephrased to avoid "process two frames together" altogether
• Added missing "is"

For @murillo128: Re: Key ID vs. KID, Counter vs. CTR. I looked through the mentions here:

• Most of the references to "Key ID" and "Counter" are in the "SFrame Header" section. I changed these to "KID" and "CTR".

• I left the following expanded instances:

  • In the diagram in the "SFrame Ciphertext" section (before the definition in the "SFrame Header" section)
  • In "Overhead Analysis" / "Assumptions", since the other fields are in prose form

[juberti]

LG, also fixed one other missing word with this commit: 7c61b5a

[murillo128]

lgtm thank you for addressing my feedback!

[bifurcation]

Thanks for the quick re-reviews! I'll send this off to the RFC Editor.