Source: http://patents.com/us-9866380.html
Timestamp: 2018-09-25 03:03:37
Document Index: 339745575

Matched Legal Cases: ['art 11', 'art 11', 'art 11', 'art 11', 'art 11', 'art 16']

US Patent # 9,866,380. Wireless device and method for rekeying with reduced packet loss for high-throughput wireless communications - Patents.com
United States Patent 9,866,380
Qi , et al. January 9, 2018
Qi; Emily H. (Portland, OR), Walker; Jesse R. (Portland, OR), Stacey; Robert J. (Portland, OR), Liondas; Herbert (Haifi, IL), Jalfon; Marc (Zichron Yaakov, IL)
Family ID: 1000003053208
14/987,011
US 20160119139 A1 Apr 28, 2016
14153440 Jan 13, 2014 9231760
12643009 Dec 21, 2009 8630416
Current CPC Class: H04L 9/0891 (20130101); H04L 9/0816 (20130101); H04W 12/04 (20130101); H04W 84/12 (20130101); H04L 63/068 (20130101); H04L 2463/061 (20130101)
Current International Class: H04L 9/08 (20060101); H04W 12/04 (20090101); H04L 29/06 (20060101); H04W 84/12 (20090101)
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This application is a continuation of U.S. patent application Ser. No. 14/153,440, filed Jan. 13, 2014, which is a continuation of U.S. patent application Ser. No. 12/643,009, filed on Dec. 21, 2009, now issued as U.S. Pat. No. 8,630,416, each of which are incorporated herein by reference in their entirety.
1. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a wireless device to perform operations comprising: transmitting, in a rekeying initiation response message of a four-way handshake, a robust security network (RSN) information element (IE) with an extended key ID field containing a 0 or a 1 to indicate whether the device supports use of a proposed extended key ID in unicast communication; receiving, in a response validation message of the four-way handshake, a key ID key data encapsulation (KBE); and transmitting, in a rekeying confirmation message of the four-way handshake, the key ID KDE to indicate agreement to use the proposed extended key ID.
2. The non-transitory computer-readable storage medium of claim 1, wherein the memory is configured to store a plurality of unicast keys for use in encrypting and decrypting packets comprising unicast traffic.
3. The non-transitory computer-readable storage medium of claim 2, wherein the plurality of unicast keys includes a key derived from a previous four-way handshake.
4. The non-transitory computer-readable storage medium of claim 1, wherein the four-way handshake comprises an Extensible Authentication Protocol over Local area network (EAPOL) key frame.
5. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a first wireless device to perform operations comprising: receiving from a second wireless communications device, in a rekeying initiation response message of a four-way handshake, a robust security network (RSN) information element (IE) with an extended key ID field containing a 0 or a 1 to indicate whether the second device supports use of a proposed extended key ID in unicast communication; transmitting to the second wireless communications device, in a response validation message of the four-way handshake, a key ID key data encapsulation (KDE); and receiving from the second wireless communications device, in a rekeying confirmation message of the four-way handshake, the key ID KDE to indicate agreement to use the proposed extended key ID.
6. The non-transitory computer-readable storage medium of claim 5, wherein the memory is configured to store a plurality of unicast keys for use in encrypting and decrypting packets comprising unicast traffic.
7. The non-transitory computer-readable storage medium of claim 6, wherein the plurality of unicast keys includes a key derived from a previous four-way handshake.
8. The non-transitory computer-readable storage medium of claim 5, wherein the four-way handshake comprises an Extensible Authentication Protocol over Local area network (EAPOL) key frame.
In some embodiments, the four-way handshake 103 may comprise exchanging Extensible Authentication Protocol over Local area network (EAPOL) key frames in accordance with an IEEE 802.11 communication standard. In these embodiments, the four-way handshake 103 may be part of an Extensible Authentication Protocol (EAP) and the EAPOL key frames may be EAPOL key frames in accordance with the IEEE 802.11 communication standard. In some of these embodiments, the four-way handshake 103 may be performed in accordance with the IEEE 802.11n, IEEE 802.11ac and/or IEEE 802.11ad communication standards or proposed standards. In these embodiments, message one, message two, message three and message four may be EAPOL key frames with the key-type subfield set to one.
If, in Message 3, the authenticator 102 signals that it agrees to support to an extended key ID by the presence of the Key KDE, the supplicant 104 may check that the proposed key ID of authenticator 102 is the value the supplicant 104 proposed in Message 2. If not, the four-way handshake 103 may fail. If, in Message 3, the authenticator 102 signals that it does not support an extended key ID by the presence of the Key ID KDE, the supplicant 104 may use the proposed key ID in unicast packets that the supplicant 104 protects, with the TK being negotiated. The supplicant 104 may reflect the KDE back to the authenticator 102 in Message 4. In these embodiments, the authenticator 102 may check that Message 4 included the KDE that it sent in Message 3; otherwise the four-way handshake 103 may fail.
In some embodiments, the wireless device 300 may be configured to communicate in accordance with specific communication standards, such as the Institute of Electrical and Electronics Engineers (IEEE) standards, including IEEE 802.11-2007 and/or 802.11(n) standards and/or proposed specifications for WLANs, although the scope of the embodiments is not limited in this respect as the wireless device 300 may also be suitable to transmit and/or receive communications in accordance with other techniques and standards. In some embodiments, the wireless device 300 may be configured to communicate in accordance with the IEEE 802.16-2004, the IEEE 802.16(e) and/or IEEE 802.16(m) standards for wireless metropolitan area networks (WMANs), including variations and evolutions thereof, although the scope of the embodiments is not limited in this respect as the wireless device 300 may also be suitable to transmit and/or receive communications in accordance with other techniques and standards. In some embodiments, the wireless device 300 may be configured to communicate accordance with the Universal Terrestrial Radio Access Network (UTRAN) LTE communication standards. For more information with respect to the IEEE 802.11 and IEEE 802.16 standards, please refer to "IEEE Standards for Information Technology--Telecommunications and Information Exchange between Systems"--Local Area Networks--Specific Requirements--Part 11 "Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY), ISO/IEC 8802-11: 1999", and Metropolitan Area Networks--Specific Requirements--Part 16: "Air Interface for Fixed Broadband Wireless Access Systems," May 2005 and related amendments/versions. For more information with respect to UTRAN LTE standards, see the 3rd Generation Partnership Project (3GPP) standards for UTRAN-LTE, release 8, March 2008, including variations and evolutions thereof.
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