Encryption and decryption of documents

Document encryption helps to protect the contents of files from unauthorised access: encrypted documents (with the extension .cdoc) can only be opened with the ID-card of a person authorised to do so. The contents of the document will remain protected from everybody else. For instance, encryption is necessary if you forward confidential information via e-mail and wish to maintain the confidentiality of the contents of the files if they should fall into the wrong hands.