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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...It really makes easier development work.

Latest version

Release:  15.1.304
23 May 2017

Pre-release:  16.0.303
21 May 2017

MIMEBlackbox package of SecureBlackbox®

SecureBlackbox product diagram

With MIMEBlackbox you can parse existing MIME, S/MIME and OpenPGP/MIME messages of any complexity and also compose new messages.

MIME is a standard for format of e-mail messages. MIME was designed to allow various types of information, including multimedia, to be included into e-mail messages. Also MIME's goal is to provide a way to extend present functionality of e-mail without breaking existing implementations.

MIMEBlackbox supports S/MIME extensions out of the box (with help of included base functions of PKIBlackbox). OpenPGP/MIME extension is available when OpenPGPBlackbox is used.

MIMEBlackbox was designed to be extensible, so it contains handlers for S/MIME, OpenPGP/MIME and UUE and lets you create custom handlers for other encoding formats (For example, BinHex or XXEncode).

As amount of spam grows day by day, various solutions are offered to prevent or counteract this (often illegal) activity. MIMEBlackbox includes support for DKIM (DomainKeys Identified Mail) technology, the most recent and promising solution, offered to fight spam.

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 MIMEBlackbox (.NET edition)
Read about MIMEBlackbox (VCL edition)
Read about MIMEBlackbox (Java edition)
Read about MIMEBlackbox (C++ edition)
Read about MIMEBlackbox (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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