METHOD AND APPARATUS FOR ESTABLISHING SECURED LINK BETWEEN DEVICES
First Claim
1. A method of establishing a secured link, performed by a coordinator, the method comprising:
- receiving from a first device first pairing information indicating that the first device is to establish a third secured link;
receiving from a second device second pairing information indicating that the second device is to establish the third secured link;
receiving shared secured information that has been shared between the first and second devices, via a first secured link established between the first device and the coordinator,establishing a second secured link between the coordinator and the second device;
broadcasting or transmitting partner notice information to the first and second devices; and
establishing the third secured link between the first and second devices using the partner notice information.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus for establishing a secured link between devices. In the establishing of the secured link, a coordinator respectively receives from the first and second devices first pairing information indicating that a first device is to establish a secured link and second pairing information indicating that a second device is to establish a secured link. The coordinator further receives via a first secured link established between the first device and the coordinator shared secured information. The shared secured information is shared between the first and second devices. The coordinator establishes a second secured link with the second device based on the shared secured information; and broadcasts partner notice information indicating that the first and second devices are partner devices. The broadcast partner notice information is then used to establish a third secured link.
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Citations
32 Claims
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1. A method of establishing a secured link, performed by a coordinator, the method comprising:
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receiving from a first device first pairing information indicating that the first device is to establish a third secured link; receiving from a second device second pairing information indicating that the second device is to establish the third secured link; receiving shared secured information that has been shared between the first and second devices, via a first secured link established between the first device and the coordinator, establishing a second secured link between the coordinator and the second device; broadcasting or transmitting partner notice information to the first and second devices; and establishing the third secured link between the first and second devices using the partner notice information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 29)
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9. A method of establishing a secured link, performed by a coordinator, the method comprising:
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receiving from a first device first pairing information indicating that the first device is to establish a third secured link; and receiving from a second device second pairing information indicating that the second device is to establish the third secured link; receiving, via a first secured link established between the first device and the coordinator, random numbers generated by the first device, and modified secured information; transmitting the random numbers to the second device; establishing a second secured link between the coordinator and the second device based on the modified secured information; broadcasting or transmitting partner notice information to the first and second devices; and establishing the third secured link between the first and second devices using the partner notice information, wherein the modified secured information is generated based on the random numbers and shared secured information, and wherein the shared secured information is information shared between the first and second devices. - View Dependent Claims (10, 11, 12, 30)
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13. A method of establishing a secured link, performed by a coordinator, the method comprising:
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receiving from the first device first pairing information indicating that the first device is to establish a third secured link; receiving from a second device second pairing information indicating that the second device is to establish the third secured link; generating random numbers; transmitting the random numbers to the first and second devices; receiving modified secured information generated by the first device via a first secured link established between the first device and the coordinator; establishing a second secured link between the coordinator and the second device based on the modified secured information; broadcasting or transmitting partner notice information to the first and second devices; and
; andestablishing the third secure link between the first and second devices using the partner notice information, wherein the modified secured information is generated based on the random numbers and shared secured information shared between the first and second devices. - View Dependent Claims (31)
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14. A method of establishing a secured link, the method comprising:
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transmitting from a first device to a coordinator first pairing information indicating that a first device is to establish a third secured link; transmitting from a second device to the coordinator second pairing information indicating that a second device is to establish the third secured link; transmitting by the first device shared secured information that is shared between the first and second devices, to the coordinator via a first secured link established between the first device and the coordinator; establishing, by the coordinator, based on the shared information, a second secured link between the second device and the coordinator; transmitting by the coordinator key generation information to the first and second devices; and establishing by the first and second devices, the third secured link based on the key generation information. - View Dependent Claims (32)
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15. An apparatus for establishing a secured link, installed in a coordinator, the apparatus comprising:
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a receiver which respectively receives from first and second devices first pairing information indicating that a first device is to establish a third secured link and second pairing information indicating that a second device is to establish the third secured link, and which receives via a first secured link established between the first and second devices shared secured information, which is information shared between the first and second devices; a link controller which establishes a second secured link between the coordinator and the second device; and a transmitter which transmits or broadcasts partner notice information, wherein the partner notice information indicates that the first and second devices are partner devices establishing the third secured link. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. An apparatus for establishing a secured link between devices, installed in a coordinator, the apparatus comprising:
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a receiver which respectively receives first pairing information from a first device indicating that the first device is to establish a third secured link and second pairing information from a second device indicating that a second device is to establish the third secured link, and which receives via a first secured link established between the first device and the coordinator random numbers generated by the first device and modified secured information generated based on the random numbers and shared secured information, which is shared between the first and second devices; a transmitter which transmits the random numbers to the second device; and a link controller which establishes a second secured link between the coordinator and the second device, based on the modified secured information, wherein the transmitter broadcasts or transmits to the first and second devices partner notice information indicating that the first and second devices are partner devices, and wherein a third secured link is established based on the partner notice information. - View Dependent Claims (24, 25, 26)
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27. An apparatus for establishing a secured link, installed in a coordinator, the apparatus comprising:
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a receiver which respectively receives first pairing information from a first device indicating that the first device is to establish a third secured link and second pairing information from a second device indicating that a second device is to establish the third secured link; a random number generator which generates random numbers; a transmitter which transmits the random numbers to the first and second devices; and a link controller which establishes a second secured link between the coordinator and the second device based on modified secured information when the receiver receives the modified secured information via a first secured link established between the first device and the coordinator, wherein the modified secured information is generated by the first device and based on the random numbers and shared secured information shared by the first and second devices, wherein the transmitter broadcasts or transmits partner notice information to the first and second devices, wherein the partner notice information indicates that the first and second devices are partner devices, and wherein a third secured link is established based on the partner notice information.
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28. A network system comprising;
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a first device which generates first pairing information indicating that the first device is to establish a third secured link; a second device which generates second pairing information indicating that the second device is to establish the third secured link; and a coordinator connected to the first device via a first secured link, the coordinator which receives the first and second pairing information, shared secured information that is shared between the first and second devices, which establishes a second secured link with the second device based on the shared secured information, and which transmits key generation information, and wherein a third secured link is established based on the shared secured information between the first and second devices.
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Specification