Method for distributing encryption keys in wireless lan

The wireless encryption key distribution method, device and distribution the certification process for producing and mobile terminal key of hanging, for managing to the key distribution of the authentication server or a wireless gateway, therefore, the user terminal capable is greater than the key management server covering area cross-region roaming. Wherein the distribution of key without involve through the key in the containing a connector is not encrypted, therefore with assured the key safety. In addition, the key distributing method without rely on the authentication method for fixing Jyriki, wherein capable of the lower authentication protocol. Finally, wherein AND no need to manage the user information, simplified AND the structure, wherein reduced the charging.