Česká národní banka (the Czech National Bank, CNB). To gather statistical data from banks the Czech National Bank uses a system that includes communication and security subsystems implemented by Editel and Hewlett-Packard. The CEDI (EDI Message Server) solution is an application for central processing of EDI messages enabling CNB to perform all operations associated with electronic data interchange of statistical reports (conversion, encryption, the digital signature of shipments, signature control, etc).