Apparatus and method for transmitting/receiving information using wireless covert channel

An apparatus for receiving information using a wireless covert channel, comprising:

• memory in which at least one program is recorded;
• and
• a processor for executing the program,
• wherein the program determines a reference value for bit identification using a received signal in a section of a Start Frame Delimiter (SFD) field indicating a start point of a packet, determines bit values constituting a received packet using a received signal based on the reference value for bit identification, determines whether a payload is data or a Cyclic Redundancy Check (CRC) depending on a value of a payload attribute field in the determined bit values, and inverts a value of the payload in units of bits depending on a value of a payload bit inversion field in the determined bit values.

A method for transmitting/receiving information using a wireless covert channel, comprising:

• dividing, by a transmission apparatus, data into data blocks having a predetermined size;
• generating, by the transmission apparatus, packets from the respective data blocks;
• and
• transmitting, by the transmission apparatus, the generated packets through a covert channel,
• wherein:
• the packet is configured with a header and a payload, and
• the header includes a Start Frame Delimiter (SFD) field indicating a start point of the packet, a payload attribute field indicating whether the payload is data or a Cyclic Redundancy Check (CRC), and a payload bit inversion field indicating whether a value of the payload is inverted in units of bits.