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).

SecureBlackbox on


All SecureBlackbox packages and add-ons are available for licensing under one of the following licenses:

Read more about the differences between various SecureBlackbox licenses.

Middleware License is a special kind of license, usually needed when you develop some component or library "for sale" (i.e. for licensing to other software developers) and use SecureBlackbox components as a part of your component or library. If this is the case, you are welcome to request information about licensing terms. Be sure to specify your planned use of SecureBlackbox and other details that might be of use in negotiations.


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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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