sftp-server file encryption

[Dr. Nagy Elemér Kár oly]

Dear Peter, dear list,

An interesting scenario is when the user stores encrypted files on a server without the server admin and other users 
having access to the files. This could be implemented on the client side by encrypting the files before sending to the 
server and decrypting it while receiving - and this could be done by the SSH client. I would like that feature - very 
much. It would make "automagic" possible - storing encrypted files with autofs for transparent encrypted network file 
storage. Sounds really awesome.

It would be nice if the server would tell the client which key the client used to encode the files - this could be 
implemented many ways, one approach is to write the public key / fingerprint to the beginning of the file before the 
actual content or to have a meta file next to the actual file. I see less practical use with password authentication, but 
a timestamp or the first two characters of the password as the meta would also help the forgetful persons like me.

I would really like SFTP/SSHFS take over other network file storage protocols. This could be a killer feature to achieve 
that.

Best wishes:
Elmar