17. SSH protocols
17.1 Multiplexing
17.2 SFTP performance
+ 17.3 Support better than MD5 hostkey hash
18. Command line tool
18.1 sync
libcurl's SFTP transfer performance is sub par and can be improved, mostly by
the approach mentioned in "1.6 Modified buffer size approach".
+17.3 Support better than MD5 hostkey hash
+
+ libcurl offers the CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 option for verifying the
+ server's key. MD5 is generally being deprecated so we should implement
+ support for stronger hashing algorithms. libssh2 itself is what provides this
+ underlying functionality and it supports at least SHA-1 as an alternative.
+ SHA-1 is also being deprecated these days so we should consider workign with
+ libssh2 to instead offer support for SHA-256 or similar.
+
+
18. Command line tool
18.1 sync