With this simple module the we have a secure file-system, and I say file system because the client implements a Stream Wrapper, that means that you can do operations over files (fopen,fwrite,fclose,mkdir,rmdir, unlink,stat,fstat, fseek, and others commands) as if you are doing on a local file, adding “fep://” in the beginning.
A nice small implementation of a file API in PHP including simple authentication.