SFTPBlackbox .NET Client-Server - In-house

SFTPBlackbox package of SecureBlackbox
SFTP (SSH File Transfer Protocol) is a secure yet simple way to access file systems, located across the network. It provides an API to create, read and write files, create, delete and enumerate directories, get and set file attributes and access control attributes. Note: SFTP is not FTPS (FTP over SSL), which is available in SSLBlackbox package.

SFTPBlackbox lets you connect to remote servers via SFTP protocol and create your own SFTP servers (server-side components are available in VCL and .NET editions).

SFTPBlackbox includes features, that help you build SFTP connection in minutes, and features that let you access and control every single function, defined by SFTP specification (and sometimes even more).

Connectivity of SFTPBlackbox components has been tested with all popular SSH servers and clients, available on the market, including software from SSH Communications, F-Secure, OpenSSH, Tectia and more.

Since SFTP is built on top of SSH connection, SFTPBlackbox includes SSHBlackbox for SSH transport.

All cryptographic functions are implemented internally by SFTPBlackbox. SFTPBlackbox does not use CryptoAPI, OpenSSH or other third-party encryption library.

SFTPBlackbox is offered as an individual package and as a part of Professional, Standard and Transports packages.

SFTPBlackbox .NET Feature list:
SFTP Protocol implementation offers the following SFTP features:

• server-side support for SFTP versions 3-6;
• client-side support for SFTP protocol versions 2-6;
• support for low-level methods (ReadFile, WriteFile, Seek, Block/Unblock);
• attribute retrieval and modification, including the attributes defined by SFTP 4 to 6;
• text and binary transfer modes including support for text mode in SFTP versions before SFTP 4;
• support for Unicode file names via UTF8;
• symlink and hardlink manipulations;
• application-defined commands;
• ZLib compression;
• support for public-key, host-based, password-based, keyboard-interactive, OpenPGP key and X.509 certificate authentication;
• asynchronous and synchronous operation modes which let you easily build synchronous and asynchronous applications;
• support for files over 4 Gb;
• possibility to plug SFTP server to custom (possibly not SSH-based) data transport;
• data transfer using events/callbacks, i.e. possibility to secure not only socket-based, but also other types of data exchange;
• (optional) FIPS-compliant operation mode

ElSimpleSFTPClient is an SFTP client component, which encapsulates several SSH and SFTP components inside and offers:

• all SFTP operations available in easy-to-use synchronous interface;
• methods for uploading, downloading and deleting one or several files and drectories with one method call;
• access to all SSH features, such as various authentication types and algorithms;
• possibility to use SFTP client in scripting environments;
• (optional) built-in TCP socket with support for Web Tunneling (HTTP CONNECT) and SOCKS proxies;
• bandwidth control;
• IPv6 support;
• DNSSEC support

SSH protocols - as SFTP usually runs on top of SSH protocol, SFTP includes all features provided by SSH protocol in SSHBlackbox (included into SFTPBlackbox).

PKI Infrastructure - besides SFTP and SSH features, SFTPBlackbox includes base functions of PKIBlackbox.

Available editions
SFTPBlackbox is available in several editions for various software platforms.

• .NET edition. This edition of SFTPBlackbox includes pure managed components, carefully optimized to achieve maximum performance, comparable to native processor code. .NET edition requires .NET Framework 4.0, .NET Framework 3.5, .NET Framework 3.0, .NET Framework 2.0, .NET Framework 1.1, Silverlight 4, Silverlight 3, Mono 2.0, Mono 1.0, .NET CF (Compact Framework) 3.5, .NET CF 2.0, .NET CF 1.0. .NET edition can be used on ASP.NET server systems, Windows desktop systems, Windows Mobile PDAs, Silverlight-enabled browsers, on Linux and MacOS X systems with Mono installed.
• VCL edition. Blazingly fast native Delphi (Pascal) components for building native Windows and Linux applications. Usable with Delphi, C++ Builder or FreePascal (Win32 or x64, Linux/x86 or Linux/x64). VCL edition works on any computer with Windows 98 and later or with Linux kernel 2.4 and later.
• ActiveX/DLL edition. ActiveX controls and Dynamically-Linked Libraries are useable with virtually any development tool, which supports ActiveX or DLLs. This includes ASP web pages, Visual Basic 6 applications, native C/C++ applications for Windows, shell and server-side scripts. ActiveX/DLL edition works on any computer with Windows 98 and later.

Support requests from customers with Priority support are served ahead of requests from regular customers and evaluation version users.