Concealed jamming attach apparatus and method which use false acknowledgement frame
AssigneeAgency for Defense Development
InventorsWoocheol Kim, Jaehyoung Park
Life of this patent
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Abstract
According to one embodiment of the present invention, in a concealed jamming attack using a false acknowledgement frame, a jamming attack is performed at a point in time during which a data frame is transmitted between a transmission node and a reception node and a false acknowledgement frame is transmitted to the data frame transmission node, such that the data frame transmission node cannot detect a data transmission failure in a MAC layer because of the jamming attack, and thus a jamming attack can be concealed.
Claims8
A device for performing a covert jamming using a fake ACK (acknowledge) frame, comprising:
- a receiving unit configured to obtain a signal transmitted and received through a wireless communication network between a transmitting node and a receiving node,
- a signal analysis unit configured to analyze information on the signal obtained by the receiving unit,
- a transmitting unit configured to transmit a jamming frame to the receiving node through the wireless communication network and configured to transmit the fake ACK frame to the transmitting node through the wireless communication network, and
- a jamming control unit configured to control the transmitting unit such that, in case the signal analyzed by the signal analysis unit includes a CTS (clear to send) frame, the jamming frame is transmitted to the receiving node at a point of time when the transmitting node transmits a data frame to the receiving node after the CTS frame, and that, in case the transmission of the data frame ends, the fake ACK frame notifying that the data frame has been normally received by the receiving node is transmitted to the transmitting node.
A method for performing a covert jamming using a fake ACK frame, comprising the steps of:
- receiving a signal transmitted and received through a wireless communication network between a transmitting node and a receiving node,
- analyzing information on the signal received from the receiving unit,
- in case the received signal is a CTS frame, transmitting a jamming frame to the wireless communication network at a point of time when a data frame is transmitted from the transmitting node to the receiving node after the CTS frame, and
- in case the transmission of the data frame ends, transmitting the fake ACK frame notifying that the data frame has been normally received by the receiving node to the transmitting node.
Dependencies are inferred from the claim text.