Subject: [Trans] comments on -05 (Sections 3.5 + 3.6)

From: Stephen Kent <[email-masked]>
Date: Fri, 06 Mar 2015 11:09:26 -0500

*3.5 Merkle Tree*

I’m happy to see that the design has changed to incorporate algorithm 
agility for the Merkle tree has function.

*3.6 Signed Tree Hash*

This section does not seem to have been updated to reflect the switch to 
algorithm agility in 3.5, i.e., is contains references to 
**"sha256_root_hash".

The description of the extensions field seems to be inspired by X.509v3.
That's OK, but one needs to define a top-level format for extensions to
ensure backward compatibility (as per v3 extensions)to make this work.
That level of specification is missing here.