Version 2017 R4: Virtual file systems in Rebex File Server

Virtual file systems in Rebex File Server

Rebex File Server now features a rich custom file system provider API. This can be used to implement virtual file systems, or custom file systems that store data in a database, in the cloud, or elsewhere. Additionally, the built-in mount-capable virtual file system provider makes it possible to construct virtual file systems composed from multiple unrelated providers:

// create an instance of mount-capable file system provider
var virtualFS = new MountCapableFileSystemProvider();

// create a read-write instance of the local file system provider
var homeFS = new LocalFileSystemProvider(@"c:\data\users\user01", FileSystemType.ReadWrite);  
virtualFS.Mount("/home/user01", homeFS);

// create a read-only instance of the local file system provider
var publicFS = new LocalFileSystemProvider(@"c:\data\public", FileSystemType.ReadOnly);  
virtualFS.Mount("/public", publicFS);

// use the mount-capable file system provider as server user's virtual file system
user01.SetFileSystem(virtualFS);  
...

Support for CNG Key Storage Providers

Rebex Certificate class now fully supports RSA, DSA and ECDSA private keys stored in Windows CNG Key Storage Providers.

Native support for Brainpool (P-256 R1, P-384 R1, P-512 R1) and secp256k1 elliptic curves on Windows 10

Windows 10 (and Windows Server 2016) added native support for additional Elliptic Curve DSA (ECDSA) / Elliptic Curve Diffie-Hellman (ECDH) curves including secp256k1, Brainpool P-256 R1, P-384 R1 and P-512 R1, and Rebex classes can take advantage of them now (in addition to NIST P-256/P-384/P-521 curves).

Brainpool curves have already been supported by our TLS/SSL library and can be used with the following ciphers:

  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
  • TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
  • TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDHE_RSA_WITH_RC4_128_SHA

For earlier Windows and other operating systems, Brainpool curves are available through external plugins.

And more...

For a complete list of changes in 2017 R4, see the release history.