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Software components for data protection, secure storage and transfer

Add PGP-compatible OpenPGP functions to your .NET application


SecureBlackbox product diagram

PGP (Pretty Good Privacy) is usually used to sign, encrypt and compress files and text. Also PGP can be used to sign and encrypt internet mail. PGP has its own key management structure and recent implementations also can use X.509 certificates to hold the keys. PGP evolved into an open standard (OpenPGP).

OpenPGPBlackbox (.NET edition, part of SecureBlackbox software product) is a collection of managed components for OpenPGP support in your C#, VB.NET, C++.NET, ASP.NET applications.

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Download SecureBlackbox (.NET edition), which includes OpenPGPBlackbox package

Main features

  • the components are suitable for use in Web Applications (ASP.NET);
  • compatibility with all popular PGP-based applications and libraries which are currently available on the market question mark;
  • support for Public Key Infrastructure (PKI, X.509 certificates, certificate requests and CRLs) including use of X.509 certificates question mark;
  • no dependencies on third-party libraries question mark;
  • synchronous and asynchronous operation modes question mark;
  • support for Cryptocards and USB Crypto Tokens question mark;
  • royalty-free license question mark;
  • Usable on Windows, Linux and MacOS X desktops, in Silverlight applications, on Windows Phone, Android (with Xamarin.Android) and iOS (with Xamarin.iOS);
  • sample code for C# and Visual Basic.NET (VB.NET);
  • unlike free open source code, SecureBlackbox comes with free individual technical support question mark
Check the complete list of features.

You can use components with Portable Class Library (Windows RT API, formerly named Metro, suitable for Windows Store Applications).



Download SecureBlackbox.NET, which includes OpenPGPBlackbox package

Read more about OpenPGPBlackbox

Compression gives an additional level of security and lets you increase transfer speed significantly and reduce the network load and storage space requirements. Synchronous operation mode gives you a linear programming approach without complicated callback functions. This approach saves your development time and reduces the number of errors.

Asynchronous operation mode, on the other hand, gives you flexibility and complete control over your application communications. Synchronous operation mode gives you a linear programming approach without complicated callback functions. This approach saves your development time and reduces the number of errors. Simple SecureBlackbox components can be used for reliable data transfer no matter what type of proxy or firewall is used to protect the network.
HTTPS proxy access includes support for Basic, Digest and Windows Integrated (NTLM) authentication mechanisms.
You can process huge files and not be bound by restrictions of 32-bit environments. This feature works on both 32-bit and 64-bit systems without any limitations. To limit and control network load and bandwidth consumption you can setup maximum upload and download speed for the data transfer components. Transport (SSL, FTP, HTTP, SMTP, POP3, WebDAV, LDAP, SSH, SFTP) components can be used in IPv6 networks without any problems, address conversions or packet wrapping. Transport (SSL, FTP, HTTP, SMTP, POP3, WebDAV, LDAP, SSH, SFTP) components understand and make use of non-latin domain names (so-called International Domain Names, IDN). In FIPS operation mode SecureBlackbox uses only certified CryptoAPI modules of Windows to perform any cryptographic operations.
FIPS mode is available only on Windows platform.
Virtual File System adapters let SecureBlackbox components, which operate with files, work with various backend file storages and not just with "physical" disk.
For example, in WebDAV, SFTP, HTTP(S) and FTP(S) servers you can provide a personal storage space for each connected user.
Out of the box file system adapter and SolFS virtual file system adapter are included and you can easily create your own adapter.
With DNSSEC support enabled you protect your socket connection from being fooled by possible DNS cache poisoning and other malicious DNS activities.
DNSSEC requires that the DNS record for the destination server contains a certified signature.
Distributed Crypto modules let web site visitors use certificates accessible only on the client system to sign the data, stored on the server (no need to download this data).
This is done with help of client-side modules (Java applet, ActiveX control, Flash applet), embedded into the web page.
Cryptographic hardware gains more and more popularity every day. If your software deals with X.509 certificates or PKI in general (RSA keys etc.), it is time to support cryptocards and USB tokens.
To use cryptographic hardware you need a license for PKIBlackbox.
SecureBlackbox was written from the ground up by EldoS Corporation developers. It doesn't use third-party code to implement its cryptographic functions. This means that you are not bound by CryptoAPI or OpenSSL version when you need to use certain algorithm.
At the same time it's possible to plug third-party security libraries and hardware modules by utilizing the pluggable architecture of SecureBlackbox.
No royalties means the licensing procedure which is clear and easy to understand and manage. Pay for the license once and use it for development and deployment with no other payments. We provide free technical support via web-based Forum and HelpDesk. Support is available for everyone, and the requests from clients who purchased a license are given priority. Also you can use our extensive knowledgebase. With OpenPGPBlackbox you can be sure that you can exchange data with any OpenPGP-compatible implementation that the other party uses. PGP 9 introduced the feature of placing multiple files into one encrypted or signed PGP file. This is done by placing all files to TAR archive and then encrypting or signing this TAR archive.

OpenPGPBlackbox can create such files itself and it is also capable of processing the PGP files with multiple files inside.

Stream-based processing lets you process really huge files and not be bound by restrictions of 32-bit environments. This feature works on both 32-bit and 64-bit systems without any limitations. OpenPGPBlackbox goes several steps beyond the current standard. We support the features, offered by the latest drafts of OpenPGP specification. OpenPGPBlackbox supports the keys of any length, used in modern computing. If you need more strength, you can generate and use 4096-bit keys without problems. With the wide choice of encryption, authentication and digital signature algorithms supported by OpenPGPBlackbox, you will be able to meet the security requirements and get compatibility with the wide choice of differently configured software. Originally PGP infrastructure was built as a distributed alternative to PKI. OpenPGPBlackbox takes the best of two worlds and offers you the ways to use both PGP and PKI depending on your needs. You can even combine them together by using X.509 certificates for OpenPGP ioerations. With SecureBlackbox you can create, manage and convert OpenPGP keys without the need for external key management software. OpenPGPBlackbox package includes functions that let you generate and manage OpenPGP keys and keyrings. Using these functions you can build your own PGP key management applications. With OpenPGPBlackbox you can create self-extracting OpenPGP files, i.e. executable files which contain encrypted, signed and compressed data. When these executable files are run, they can extract the contained data to the disk (of course, when the correct decryption key or passphrase is provided for encrypted data).
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