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. 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. 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. SecureBlackbox was written from the ground up by EldoS Corporation developers. It doesn't use third-party code to implement it's 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 PDFBlackbox you can be sure that you can exchange the documents with any PDF application that the other party uses. Password-based encryption is the basic encryption type supported by most (if not all) PDF readers. Many components can encrypt the data using the password. But it's PDFBlackbox that provides document encryption using X.509 certificate. With certificate-based encryption you can prepare the documents, which are supposed to be read by just one or several recipients. And you don't need to share the common passwords between all parties. Digital signing of the documents becomes more and more popular every day. Now you can publish your documents and sign them with X.509 certificates without the need for expensive Acrobat and it's SDK. Timestamping is a vital part of digital signing procedure, that allows you to certify the time, when the signature was made. With PDFBlackbox you can create visible or invisible signatures. What's more, you can create certification and modifcation detection signatures. This type of signatures allows certain document modifications such as filling the forms while protecting the main document contents. Validation of the digital signature is usually much more than just verifying the cryptographic signature. Correct validation includes signature verification, checking of the signature timestamp, verification of validity of the certificate and all of it's issuer certficates. With PDFBlackbox you can build your own verification procedures.