[Sea-sec] Comment re: key sizes in Algorithm document
Howard.Weiss at parsons.com
Thu Jul 5 17:36:33 UTC 2018
We currently have two documents in CESG polling for Agency Review.
On the Algorithms document, we have increased the minimum key sizes. However we have a comment from Mario Merri (ESA):
"The main change is the strenghen of the authenticaltion keys. These have been increased, thus making implementations that followed the previous CCSDS recommentation not-compliant. Why has the document update not been made in a backward-compatible manner, still strongly recommending the new key lengths?"
Peter Shames suggested that we make the larger key size a "shall" but allow the smaller key sizes as "may" with a note strongly discouraging the smaller key sizes. This would satisfy Mario's backward compatibility issue.
Any comments? Any disagreements? Any other suggestions?
Howard Weiss, CISSP
7110 Samuel Morse Drive
Columbia, MD 21046
howard.weiss at parsons.com
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