System and method for secure communication of components inside self-service automats
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United States of America Patent
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Jul 22, 2014
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app pub date -
Oct 22, 2009
filing date -
Dec 9, 2008
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Abstract
Method to secure the communication of components within self-service automats that are linked to each other by a bus system, having a transmitter and a receiver, characterized in that data are exchanged as tuples (C, A, R, N, Z) on the transport layer of the bus system where
- C are the message data M encrypted with an encryption key,A are the message data M authenticated with an authentication key,R represents the role of a component on the bus system of active or passive participants,N represents a message counter,Z represents a session counter.
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