Document of value processing device and method for operating a document of value processing device
According to various embodiments, a document of value processing device may include: a secured chamber configured to accommodate one or more documents of value and to protect at least one handling device from unauthorized access; the at least one handling device disposed inside the secured chamber to handle at least an output of the one or more documents of value out of the secured chamber may; a control circuit coupled to the at least one handling device to control an operation of the at least one handling device; and a security circuit disposed inside the secured chamber. The security circuit is configured to receive a cryptographically processed signal, to verify the received cryptographically processed signal, and to disable or enable the operation of the at least one handling device based on a verification result.
1. A document of value processing device, comprising:
at least one handling device;
a secured chamber configured to accommodate one or more documents of value and to protect the at least one handling device from unauthorized access, the at least one handling device disposed inside the secured chamber to handle at least an output of the one or more documents of value out of the secured chamber;
a control circuit coupled to the at least one handling device to control an operation of the at least one handling device; and
a security circuit disposed inside the secured chamber, wherein the security circuit is configured to receive a cryptographically processed signal, to verify the received cryptographically processed signal, and to disable or enable the operation of the at least one handling device based on a verification result using a power switch disposed inside the secured chamber.
2. The document of value processing device of claim 1 , wherein the security circuit is configured to enable the operation of the at least one handling device when the cryptographically processed signal is verified and to disable the operation of the at least one handling device when the cryptographically processed signal is not verified.
3. The document of value processing device of claim 1 , wherein the security circuit is further configured to disable the operation of the at least one handling device when the cryptographically processed signal is not received.
4. The document of value processing device of claim 1 , wherein the at least one handling device is further configured to handle an input of the one or more documents of value into the secured chamber.
5. The document of value processing device of claim 1 , wherein the at least one handling device comprises an automated handling arrangement to handle the one or more documents of value and a power supply to supply the automated handling arrangement, and wherein the security circuit is configured to enable or disable an operation of the power supply based on the verification result.
6. The document of value processing device of claim 1 , wherein the security circuit is configured to enable or disable a communication between the control circuit and the at least one handling device based on the verification result.
7. The document of value processing device of claim 1 , wherein the security circuit is configured to perform an initialization process for exchanging a common key with a peripheral circuit for cryptographically processing a signal and for verifying the cryptographically processed the signal.
8. The document of value processing device of claim 7 , wherein the security circuit is configured to perform the initialization process based on an asynchronously encrypted communication with the peripheral circuit.
9. The document of value processing device of claim 7 , further comprising:
a hardware protection switch configured to allow a start of the initialization process only when the hardware protection switch is activated.
10. The document of value processing device of claim 1 , further comprising:
a peripheral circuit configured to generate the cryptographically processed signal and to transmit the cryptographically processed signal to the security circuit.
11. The document of value processing device of claim 10 , wherein the peripheral circuit is configured to generate the cryptographically processed signal based on a sequence of datagrams, wherein the datagrams of the sequence of datagrams are different from each other.
12. A method for operating a document of value processing device, the method comprising:
controlling at least one handling device for handling one or more documents of value, wherein the at least one handling device is disposed inside a secured chamber to protect the at least one handling device from unauthorized access;
transmitting a cryptographically processed signal generated by a peripheral circuit disposed outside the secured chamber to a security circuit disposed inside the secured chamber; and, when the cryptographically processed signal is received by the security circuit,
verifying the received cryptographically processed signal; and
configuring an operation of the at least one handling device based on a verification result using a power switch disposed inside the secured chamber.
13. The method of claim 12 , wherein configuring an operation of the at least one handling device comprises:
enabling the operation of the at least one handling device when the cryptographically processed signal is verified; and
disabling the operation of the at least one handling device when the cryptographically processed signal is not verified.
14. The method of claim 12 , wherein controlling at least one handling device comprises controlling an input of the one or more documents of value into the secured chamber.
15. The method of claim 12 , wherein controlling at least one handling device comprises controlling an output of the one or more documents of value out of the secured chamber.