| US 7,519,183 B2 | ||
| Communication system, wireless communication apparatus, and communication method | ||
| Tomoko Adachi, Urayasu (Japan); and Kiyoshi Toshimitsu, Yokohama (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan) | ||
| Filed on Aug. 10, 2007, as Appl. No. 11/837,389. | ||
| Application 11/837389 is a continuation of application No. 10/327193, filed on Dec. 24, 2002, granted, now 7,269,260. | ||
| Claims priority of application No. 2001-395475 (JP), filed on Dec. 26, 2001. | ||
| Prior Publication US 2007/0286425 A1, Dec. 13, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. H04K 1/00 (2006.01); H04L 9/14 (2006.01); H04L 12/56 (2006.01); H04M 1/66 (2006.01); H04M 1/68 (2006.01); H04M 3/16 (2006.01); G06F 15/16 (2006.01) | ||
| U.S. Cl. 380—270 [726/1; 726/4; 726/6; 726/7; 709/227; 370/392; 455/410; 455/411] | 20 Claims |
| 1. A wireless communication apparatus which belongs to a wireless communication group, comprising:
a receiver unit configured to receive an association request for data communication security from a wireless communication
unit outside of the wireless communication group, the association request including information on a data security level used
for communication data that is to be transmitted by the wireless communication unit;
a reference memory configured to store a reference security level assigned to the wireless communication group, the reference
security level selected from a plurality of security levels corresponding to a plurality of encryption methods including at
least one of non-encryption and a plurality of encryption strengths for communication data;
a control unit configured to compare the data security level with the reference security level to determine whether the data
security level satisfies the reference security level of the group, and configured to generate a reply including information
on either an association rejection or an association permission depending on a result of the comparison of the data security
level with the reference security level; and
a transmitting unit configured to transmit the reply to the wireless communication unit,
wherein the wireless communication unit transmits the communication data to the wireless communication apparatus after receiving
the reply having an association permission, and after an authentication of the wireless communication unit has been performed.
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