About CEF's Building Blocks

The CEF Building Blocks offer basic capabilities – secure message exchange, interoperable authentication, data management, for example – that facilitate the delivery of digital (often public) services across borders.

As a quick reminder, there are nine Building Blocks:

• European Blockchain Services Infrastructure
• Big Data Test Infrastructure
• Context Broker
• eArchiving
• eDelivery
• eID
• eInvoicing
• eSignature
• eTranslation
• We’re also preparing the Once Only Principle as a CEF Building Block