SYSTEM AND METHOD FOR SECURE COMMUNICATION OF COMPONENTS INSIDE SELF-SERVICE AUTOMATS
First Claim
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1. A method for securing communication of components inside a self-service automat that are connected to each other by a bus system, with a transmitter and a receiver, comprising:
- exchanging data as tuples (C,A,R,N,Z, {circumflex over (N)}, {circumflex over (Z)}) between the transmitter and the receiver on a transport layer of the bus system, wherein;
C are message data M encrypted with an encryption key;
A are message data M authenticated with an authentication key;
R represents a participant role of a component on the bus system of active or passive participants;
N represents a message counter;
Z represents a session counter;
{circumflex over (N)} is a message counter for Δ
-last messages N; and
{circumflex over (Z)} is a last session counter for Δ
-last messages.
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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 tupels (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.
14 Citations
25 Claims
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1. A method for securing communication of components inside a self-service automat that are connected to each other by a bus system, with a transmitter and a receiver, comprising:
exchanging data as tuples (C,A,R,N,Z, {circumflex over (N)}, {circumflex over (Z)}) between the transmitter and the receiver on a transport layer of the bus system, wherein; C are message data M encrypted with an encryption key; A are message data M authenticated with an authentication key; R represents a participant role of a component on the bus system of active or passive participants; N represents a message counter; Z represents a session counter; {circumflex over (N)} is a message counter for Δ
-last messages N; and{circumflex over (Z)} is a last session counter for Δ
-last messages.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for securing communication of components inside self-service automats comprising:
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a plurality of components, inside a self-service automat, including a first component and a second component, the first component being a transmitter in communication with the second component, being a receiver, wherein the first and second components are on a bus system having a transport layer; a plurality of configured computing units, including a first computing unit in communication with the first component and a second computing unit in communication with the second component; and wherein data are exchanged between the first component and the second component on the transport layer of the bus system as tuples (C,A,R,N, {circumflex over (N)}, {circumflex over (Z)}); and wherein; C are message data M encrypted with an encryption key; A are message data M authenticated with an authentication key; R represents a participant role of a component on the bus system, R includes active and passive; N represents a message counter; Z represents a session counter; {circumflex over (N)} is a message counter for Δ
-last messages N; and{circumflex over (Z)} is a last session counter for Δ
-last messages. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification