A free Server is also in preparation, but not in production yet. This protocol is used in Windows world. It was inspired from coda but uses the disk file system as a persistent cache. Intermezzo supports disconnected operation but does not yet implement an identification system. It supports secure storage at the system level through a standard Unix file system interface to encrypted files.
Users associate a cryptographic key with the directories they wish to protect.
CFS employs a novel combination of DES stream and codebook cipher modes to provide high security with good performance on a modern workstation. System management functions, such as file backup, work in a normal manner and without knowledge of the key. As a matter of fact, CFS works in user space while TCFS works in the kernel space thus resulting in improved performances and security. This enables you to keep sensitive information on a disk, while not be prone to being forced to reveal that information. Even under extreme circumstances, fake documents could be stored on other parts of the disk, for which a pasword may be revealed.