On Jan 9, 2020, at 00:46, Paul Hoffman <paul.hoffman@icann.org> wrote:

I worry that, as written, there is ambiguity.  Is RSSAC requesting a single study that
would evaluate both alg roll and length change?  or separate studies?  Would a single study
on length change only satisfy the recommendation (since it says "or")?

The latter was what I intended, but I see where there is ambiguity. Better wording might be "... studying and documenting a comprehensive approach to an algorithm rollover, or to a key length change, …”