| 摘要 |
PURPOSE: A method for safely exchanging secret key in a communication network is provided to reduce energy consumption by reducing a calculation amount necessary for exchanging for a secret key. CONSTITUTION: A transmission terminal transmits an access request message(S100). The transmission terminal determines the share of a secret key between a receiving terminal and a transmission terminal(S200). The receiving terminal transmits a reception authentication message to the transmission terminal(S300). The transmission terminal transmits a transmission authentication message to the receiving terminal(S400). The receiving terminal determines a hop count between the transmission terminal and the receiving terminal(S500). The receiving terminal transmits an authentication approval message to the transmission terminal(S600). The transmission terminal primarily authenticates the reliability of the secret key exchanged between the transmission terminal and the receiving terminal(S700). The transmission terminal secondarily authenticates the reliability of the secret key exchanged between the transmission terminal and the receiving terminal(S800). |
