SSH céljai
“The primary goal of the SSH protocol is improved security on the Internet. It attempts to do this in a way that is easy to deploy, even at the cost of absolute security.
All encryption, integrity, and public key algorithms used are well-known, well-established algorithms.
All algorithms are used with cryptographically sound key sizes that are believed to provide protection against even the strongest cryptanalytic attacks for decades.
All algorithms are negotiated, and in case some algorithm is broken, it is easy to switch to some other algorithm without modifying the base protocol.”