What has been planned for a long time now, prior to the infamous heartbleed fiasco of OpenSSL (which does not affect SSH at all), is now officially a reality - with the help of some recently adopted crypto from DJ Bernstein. OpenSSH now finally has a compile-time option to no longer depend on OpenSSL, the option `make OPENSSL=no` has now been introduced for a reduced-configuration OpenSSH to be built without OpenSSL.
The result would leave you with no legacy SSH-1 baggage at all, and on the SSH-2 front with only AES-CTR and chacha20+poly1305 ciphers, ECDH/curve25519 key exchange and Ed25519 public keys.
[Editor's Note: This appears to be very much a Work-in-Progress, so might not be available for your distro or via standard repositories.]
(Score: 2) by Foobar Bazbot on Thursday May 01 2014, @12:41PM
I wonder how this will compare to dropbear for mobile/embedded use. Probably bigger binary than dropbear, but with more features (e.g. SOCKS forwarding), and still lighter than the "normal" openssl+openssh option; sounds like a nice compromise.