Rebex FTP/SSL
FTP and FTP/SSL client .NET library
More .NET components

Standards and platform support

On this page:

100% managed .NET code with no external dependencies #

  • Rebex FTP/SSL is written in 100% managed C# code.
  • No external dependencies. It only needs .NET Framework.
  • No open source code used.
  • Fully CLS-compliant.
  • Supports any .NET language (C#, VB.NET, C++/CLI, etc.)
  • Platform-independent code. Same assemblies for both 32-bit and 64-bit applications.

.NET Framework on Windows #

Rebex FTP/SSL supports the following .NET Framework platforms:

  • .NET Framework 4.7
  • .NET Framework 4.6.x
  • .NET Framework 4.5.x
  • .NET Framework 4.0
  • .NET Framework 3.5
  • .NET Framework 3.0
  • .NET Framework 2.0
  • Both 32-bit and 64-bit versions (same DLLs)

Legacy binaries for .NET Framework 1.0 and 1.1 are available for registered customers.
For details, see Legacy platform support section.

Supported IDE versions:

  • Microsoft Visual Studio 2008
  • Microsoft Visual Studio 2010
  • Microsoft Visual Studio 2012
  • Microsoft Visual Studio 2013
  • Microsoft Visual Studio 2015
  • Microsoft Visual Studio 2017

Supported Windows versions:

  • Windows 10
  • Windows 8
  • Windows 8.1
  • Windows 2012 Server
  • Windows 2012 Server R2
  • Windows 2008 Server
  • Windows 2008 Server R2
  • Windows 7

Rebex FTP/SSL is known to work on Windows XP SP3 and Windows Server 2003 R2. However, these platforms already reached end-of-life, which means we cannot guarantee any kind of support for Rebex FTP/SSL on these operating systems.

.NET Core #

Rebex FTP/SSL supports .NET Core platform.

Supported frameworks:

  • .NET Core 1.1
  • .NET Core 2.0
  • .NET Core 2.1 (and higher)

Supported operating systems:

  • Windows 10
  • Windows 8.1
  • Windows 7 (SP1 and higher)
  • Windows Server 2008 R2 (SP1 and higher)
  • Linux (64-bit)

Operating systems with experimental support:

  • macOS (64-bit)

.NET Standard #

Rebex FTP/SSL supports .NET Standard 1.5, 1.6 and 2.0 on .NET Core 1.1, 2.0, 2.1 and 2.x. Support for .NET Standard on .NET Framework 4.6.1 (or higher) is experimental.

Mono on Linux #

Rebex FTP/SSL supports Mono version 3.x, 4.x and 5.x on Linux and Apple macOS (OS X).

.NET Compact Framework on handhelds and mobiles #

Rebex FTP/SSL supports Microsoft legacy handheld and mobile platforms.

Supported frameworks:

  • .NET Compact Framework 3.5
  • .NET Compact Framework 3.9

Legacy binaries for .NET Compact Framework 2.0 are available as part of extended legacy platform support.
Contact sales@rebex.net for details (see also Legacy platform support).

Supported mobile operating systems:

  • Windows CE 5.0, 6.x
  • Pocket PC
  • Windows Mobile
  • Windows Embedded Compact 7
  • Windows Embedded Compact 2013

Supported IDE versions:

  • Microsoft Visual Studio 2008
  • Microsoft Visual Studio 2012
  • Microsoft Visual Studio 2013

Xamarin.iOS #

  • Xamarin Studio/Visual Studio with Xamarin.iOS 8.6 or later
  • iOS 5.1.1 or later

Xamarin.Android #

  • Xamarin Studio/Visual Studio with Xamarin.Android 4 or later
  • Android 2.3.3 or later (Android API version 10 or later)

Xamarin.Mac #

Experimental version of Rebex FTP/SSL for Xamarin.Mac is included in the installation package.

Supported projects:

  • Xamarin.Mac Mobile
  • Xamarin.Mac .NET 4.5 Framework

Requires Xamarin Studio with Xamarin.Mac 2.x or later and OS X 10.7 or later.

Universal Windows Platform #

Experimental version of Rebex FTP/SSL for Universal Windows Platform is included in the installation package.

Supported platforms:

  • Windows 10 Store Apps
  • Windows 10 Mobile
  • Windows 10 IoT

ASP.NET #

Rebex FTP/SSL can be used within an ASP.NET web page. However, you have to keep in mind specific features of the ASP.NET platform (it is stateless, multithreaded, it may be limited by MediumTrust security level...).

For more details, see How to use Rebex SFTP or FTP/SSL in ASP.NET knowledge base article or try the FTP client in ASP.NET sample.

Legacy platform support #

Legacy version of Rebex FTP/SSL for .NET Framework 1.0 and 1.1 is still available for registered customers. However, it's no longer maintained or supported and all customers are advised to upgrade to a more recent platform as soon as possible.

Legacy version of Rebex FTP/SSL for .NET Compact Framework 2.0 is still available as part of extended legacy platform support. Contact sales@rebex.net for details.

See also How long will Rebex support old versions of .NET Framework knowledge base article.

Internet RFC specifications #

Implemented (FTP and TLS) RFCs:

Please note that some non-essential features might not be supported. Let us know if you need to add anything.

TLS/SSL versions #

Supported TLS/SSL protocol versions:

  • SSL 3.0
  • TLS 1.0
  • TLS 1.1
  • TLS 1.2

FIPS 140-2 mode #

Rebex FTP/SSL can operate in a FIPS 140-2 compliant mode. When enabled, only FIPS-approved cryptographic modules from MS CryptoAPI are used. FIPS mode is activated automatically when Windows is running in FIPS mode. To switch on the FIPS mode manually, set
Rebex.Security.Cryptography.CryptoHelper.UseFipsAlgorithmsOnly to true.

Directory listing formats #

Rebex FTP/SSL can parse directory listings using the following formats:

  • Unix "ls" (ProFTPd, Wu-FTPd, Microsoft FTP and many others)
  • DOS (Microsoft FTP and others)
  • Netware
  • DJ Bernstein's EPLF
  • glFTPd ANSI-colored list
  • VMS and MultiNet (both single and multiline)
  • IBM 4690
  • Tandem Guardian
  • support for custom list parsers

Proxy servers #

  • Various FTP proxies
  • SOCKS4
  • SOCKS4a (Socks4 with domain name resolving)
  • SOCKS5
  • HTTP proxies with CONNECT method support
  • Tunneling through SSH servers

Learn how to use proxy servers in Rebex FTP/SSL.

Cryptographic algorithms #

  • Diffie-Hellman key exchange
  • RSA
  • DSA (with support of non-standard key sizes of up to 4096 bits)
  • Tripple DES
  • ArcFour (compatible with RC4)
  • AES (Rijndael)
  • SHA-1
  • SHA-2 (SHA-256, SHA-384, SHA-512)
  • MD5

Learn more about TLS/SSL security standards details.

Certificate and private key formats #

Certificate formats

  • PKCS #12
  • PFX
  • DER (binary or base64 encoded)
  • CER (binary or base64 encoded)

External private key formats

  • PKCS #8 keys
  • OpenSSH/OpenSSL (SSLeay) keys
  • PuTTY .ppk keys

Scripting platforms #

Rebex FTP/SSL is designed primary for use in .NET framework applications. However, it can be used in several other scripting and hosting environments:

  • Microsoft SQL Server SSIS packages
  • Microsoft SQL Server SQL CLR stored procedures
  • Microsoft PowerShell scripts

See how to use Rebex FTP/SSL in SSIS, SQL CLR and PowerShell environments.

Other technologies #

  • IPv4 and IPv6 support