EldoS | Feel safer!

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:  15.1.297
20 October 2016

HTTPBlackbox package of SecureBlackbox®

SecureBlackbox product diagram

HTTP is a basis for World Wide Web communications. HTTP can work over plain channel or over encrypted SSL or TLS connection.

The unique offering of HTTPBlackbox is possibility to create your own HTTP and HTTPS server (including proxy server) and handle incoming HTTP/HTTPS connections.

Besides HTTP itself, HTTPBlackbox includes both client- and server-side implementation of WebSocket protocol (RFC 6455) used in many Web applications today. Also a flexible REST client is available.

Since HTTPS is built on top of SSL/TLS connection, HTTPBlackbox includes components 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). Public key security (PKI) lets each side examine authenticity of the other side and prevent man-in-the-middle attacks. PKI infrastructure is a widely-used technology, so implementation and maintenance of SSL/TLS-based solutions are quite simple tasks. For certificate validation HTTPBlackbox uses components and classes of PKIBlackbox, base functions of which are included with HTTPBlackbox package.

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


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

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