| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device and a method for generating a secret key using a radio channel change in a radio communication network. <P>SOLUTION: The secret key generation device includes: at least one antenna for receiving a radio signal from an opposite radio communication terminal; an amplification and phase adjustment unit for adjusting an amplification gain and a phase of the radio signal received through the at least one antenna; using the radio signal having the adjusted amplification gain and the phase, a transceiver for measuring a radio channel state and determining a parameter on the basis of the measurement result, to generate a secret key; and a random signal controller for controlling the amplification and phase adjustment unit in a manner to adjust the amplification gain and the phase each time the transceiver generates the secret key. <P>COPYRIGHT: (C)2013,JPO&INPIT |
