| 摘要 |
PURPOSE: A security information remote erasure method of a small radio is provided to prevent the exposure of security information by deleting the security information of the radio using an ad-hoc function. CONSTITUTION: A relay radio(420) receives an ID(Identification) of a target radio(430) and the erasure command of security information recognized in the target radio from a security information erasure command radio(410). When the ID of the target radio is matched with the relay radio, the relay radio transmits the erasure command to the target radio. The relay radio receives the response of the erasure command from the target radio. The relay radio deletes the ID of the target radio. [Reference numerals] (410) Security information erasure command radio; (420) Relay radio; (420-2) Relay radio; (420-3) Relay radio; (430) Target radio; (AA) Target radio identification and security information erasure command; (BB) Target radio ID memory storage; (CC) In case of a target radio; (DD) Security information erasure; (EE) Deleting in a target radio ID memory; (S410) Target radio ID + erasure command; (S420) Radio ID confirmation request; (S430) Radio ID confirmation; (S440) Security module information erasure request; (S450) Security module information erasure confirmation; (S460) Security module information key authentication; (S470) Security module information erasure confirmation; (S480) Remote erasure confirmation; (S490) Target radio ID + erasure completion(Flooding)
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