The overriding goal was simplicity for an embedded solution. Yes, throwing up an stunnel in front of port 23 enables telnet-ssl, but this is a bit heavy for a

The overriding goal was simplicity for an embedded solution. Yes, throwing up an stunnel in front of port 23 enables telnet-ssl, but this is a bit heavy for a small machine. I actually have an emulated VAX running VMS 7.3, and the C compiler on this machine does not support 64-bit "long long" so AES-CTR is the best that it can do (and chacha20 won't compile here). In this case, a version of chacha20 for K&R C would be very handy. As you can imagine, sftp for this machine has been a unique challenge.