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Software components for data protection, secure storage and transfer


Add perfect security to your application!

SecureBlackbox is a suite of software components that allows developers to add strong security to their applications to protect binary data, files, documents and e-mails.

SecureBlackbox includes authentic implementations (no 3rd-party code used) of various data security standards and network communication protocols for various platforms (Windows, .NET, Linux, macOS / iOS, Java / Android).

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Latest version

Release:  15.1.304
23 May 2017

Pre-release:  16.0.303
21 May 2017

FTPSBlackbox package of SecureBlackbox®

SecureBlackbox product diagram

FTPSBlackbox offers secure way to access file systems, located across the network, and to upload and download files to and from remote servers. Based on industry-standard FTP (RFC 959) protocol, FTPS (RFC 2228) works over encrypted SSL or TLS connection. It provides an API to create, read and write files, create, delete and enumerate directories.

The unique offering of SecureBlackbox FTP library is possibility to create your own FTPS server and FTP server and handle incoming FTP/FTPS connections.

Since FTPS is built on top of SSL/TLS connection, FTPSBlackbox includes classes for generic SSL/TLS transport.

Unlike symmetric encryption, securing communications with SSL/TLS doesn't require that the sides know the shared secret (password/encryption key). Also, the public key security (PKI) lets each side examine authenticity of the other side and prevent man-in-the-middle attacks.

Another benefit of SSL/TLS is that PKI infrastructure is a widely-used technology, so implementation and maintenance of SSL/TLS-based solutions are quite simple tasks. For certificate creation, management and validation FTPSBlackbox uses PKIBlackbox, base functions of which are included with FTPSBlackbox package.

FTPSBlackbox includes its own implementation of SSL/TLS/DTLS protocol family and doesn't include any external code like OpenSSL, OpenSSH etc.

Top 6 reasons to choose SecureBlackbox:


Strict observance of the standards and the most secure algorithms, used in the industry, ensures highest level of security of the offered solutions.


SecureBlackbox is an integrated suite of instruments, equally applicable for building complex security-related software solutions and for adding data protection to existing applications.

Easy to use architecture

SecureBlackbox was carefully designed by software architects, who have extensive experience in software development and design.

Readiness for use

One can use SecureBlackbox even if he/she has only basic knowledge of information security and cryptography.

Flexible support policy

EldoS offers many support options, from forums and knowlegebase to free individual support and expert services.

Affordable licensing schemes

EldoS offers affordable royalty-free licenses for all its products. All licenses include free individual support and free updates.

Read about FTPSBlackbox (.NET edition)
Read about FTPSBlackbox (VCL edition)
Read about FTPSBlackbox (Java edition)
Read about FTPSBlackbox (C++ edition)
Read about FTPSBlackbox (PHP edition)


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As of July 15, 2016 EldoS business operates as a division of /n software, inc. For more information, please read the announcement.

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