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US 2022/0209949 A1Published application
Secure communication device and secure communication program
AssigneePsdl
InventorsSungwoo Chun, Deok Soo Hwang
Life of this patent
Estimating the term…
Abstract
Provided is a secure communication device. The secure communication device include: an audio input terminal; an antenna for receiving an RF signal; and a control unit that encrypts an audio signal inputted to the audio input terminal based on the RF signal received by the antenna, and transmits the encrypted audio signal to a paired receiver through the antenna.
Claims9
A secure communication device comprising:
- an audio input terminal for receiving an audio signal;
- an antenna;
- a pairing unit providing a master encryption key shared with at least one receiver upon pairing with the at least one receiver;
- an encryption key generation unit for generating a sender encryption key and generating a shared encryption key by using the generated sender encryption key and a master encryption key shared during the pairing;
- and
- a control unit including a transmitter configured to, when transmitting the audio signal to a specific receiver, transmit an audio data packet composed of the sender encryption key, a receiver ID for identifying a reception of a specific receiver encrypted with the sender encryption key, and the audio signal encrypted by the shared encryption key through the antenna.
3 more elements
A secure communication device comprising:
- a memory for storing data to be transmitted to at least one external electronic device, and a fixed master key;
- an antenna for communicating with the at least one external electronic device;
- and
- a control unit configured to generate a refresh key and encrypt the data stored in the memory by generating a shared encryption key based on the refresh key and the fixed master key to transmit encrypted data, the refresh key, and an electronic device ID identifying reception of a specific external electronic device encrypted with the refresh key to the at least one external electronic device through the antenna, wherein
- the master key is already stored in the memory prior to the transmission.
2 more elements
Dependencies are inferred from the claim text.