Some distributions (such as Android) do not compile with RIPEMD support, so it would be useful to check for EVP_RIPEMD like EVP_SHA256 is currently.
Created attachment 2446 [details] Check for EVP_ripemd160 This should do the trick.
patch applied. This will be in OpenSSH 6.7 - thanks!
Close all bugs left open from 6.6 and 6.7 releases.