Importance

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Abstract

The invention relates to a device for access-protected processing of electronic data. The inventive device consists of an electronic data processing device, particularly a PC, with means of acquiring electronic data of a first electronic document and of retaining the data in an allocated volatile or permanent storage unit. The first electronic document has a predetermined document-specific data format involving a plurality of electronic streams linked by means of a tree, network, database and/or folder structure. By means of a display of the data processing device these streams can be read and displayed to the user as the first electronic document. At least one stream is suitable for having embedded and/or attached hidden data that cannot be discerned by the user when the display unit shows the document and can be retained, together with the first electronic document, in the storage unit. Means are provided of acquiring electronic data of a second electronic document that is at least partially protected against unauthorized access. Means are provided of embedding and/or attaching the protected data of the second electronic document in/to at least one stream as hidden data. Means are provided of extracting the data of the second electronic document from at least one stream and displaying the second document to the user, whereby extraction is carried out as a result of a decryption or authorization signal..sup.2 .sup.2 Ditto

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First Claim