System for document-based data exchange between at least two data carriers via paper or EDI

摘要

The present invention relates to a data transmission system (1), which in a 2-way method enables a document-based data exchange between at least two data carriers by way of paper or remote data transmission, particularly a system for the secure forwarding of individual data to third parties while controlling those involved. For this purpose, the respective output data is represented as ONE-TIME-PAD key cipher pairs, and the pair components or arbitrary derivative variables, which is to say variables by way of which the pair components can be calculated again, are distributed among a central intermediate storage device and a machine-readable supplementary sheet. The correspondence recipients assume the roles of relay stations, but can remain completely anonymous.