ddn.net.sftp

Pure D SFTP version 3 client and legacy SCP module.

The modules in this package implement the SSH File Transfer Protocol version 3 with selected OpenSSH extensions, and a legacy SCP compatibility module, on top of the channel interface defined in ddn.api.net.ssh.

The package deliberately depends only on the DDN core API contracts: it never imports a concrete SSH implementation or a cryptographic library, which keeps the protocol engine testable against scripted mock channels.