Method and apparatus to perform device to device communication in wireless communication network

• US 10,631,162 B2
• Filed: 10/30/2014
• Issued: 04/21/2020
• Est. Priority Date: 10/30/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Rajadurai, Rajavelsamy, Agiwal, Anil
• Primary Examiner(s): Najjar, Saleh
• Assistant Examiner(s): Chao, Michael W
• Application Number:
  US15/033,420
• Publication Number:
  US 20160255502A1
• Time in Patent Office: 2,000 Days
• Field of Search: None
• CPC Class Codes: H04L 2209/80 Wireless network architectures or network communication protocols for wireless network security H04W12/00
• CPC Class Codes: H04L 63/0442 wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption cryptographic mechanisms or cryptographic arrangements for public-key encryption H04L9/30
• CPC Class Codes: H04L 63/061 for key exchange, e.g. in peer-to-peer networks cryptographic mechanisms or cryptographic arrangements for key agreement H04L9/0838
• CPC Class Codes: H04L 63/062 for key distribution, e.g. centrally by trusted party cryptographic mechanisms or cryptographic arrangements for key distribution involving a central third party H04L9/0819
• CPC Class Codes: H04L 9/0825 using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
• CPC Class Codes: H04L 9/0847 involving identity based encryption [IBE] schemes
• CPC Class Codes: H04L 9/3247 involving digital signatures
• CPC Class Codes: H04W 12/04 Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: H04W 12/0431 Key distribution or pre-distribution; Key agreement
• CPC Class Codes: H04W 76/14 Direct-mode setup

Abstract

A method and an apparatus for verifying identity of a direct communication message using asymmetric keys in a wireless communication network comprising a plurality of electronic devices is provided. The method includes distributing a public key associated with a second electronic device among a plurality of electronic devices by a Device-to-Device (D2D) server. The method includes receiving the direct communication message from the second electronic device at a first electronic device. The direct communication message comprises a digital signature generated using a private key associated with the second electronic device. Further, the method includes verifying the identity of the direct communication message using the public key associated with the second electronic device.

Claims

1. A method for supporting a device to device direct communication between electronic devices by a network server in a wireless communication network, the method comprising:

receiving, by the network server, a request message for the device to device direct communication from a first electronic device;

verifying, by the network server, a user identity of the first electronic device in response to receiving the request message;

transmitting, by the network server, a response message comprising a private key corresponding to the user identity of the first electronic device; and

receiving, by the network server from the first electronic device, the public key and a list of network entities authorized to obtain the public key,

wherein the first electronic device is configured to broadcast a discovery announcement message signed using the private key,

wherein at least one second electronic device which intends to communicate with the first electronic device is configured to;

obtain a public key associated with the user identity of the first electronic device from the network server,

receive the discovery announcement message when the at least one second electronic device is out of a network coverage of the wireless communication network, and

verify the discovery announcement message using the public key associated with the user identity of the first electronic device, and

wherein the public key is associated with the user identity being specific to application running on the first electronic device.

2. The method of claim 1, wherein the at least one second electronic device is configured to obtain the public key when the at least one second electronic device registers for the device to device direct communication of the wireless communication network.

3. A method for performing a device to device direct communication by a first electronic device in a wireless communication network, the method comprises:

transmitting a request message for the device to device direct communication to a network server;

receiving a response message comprising a private key corresponding to a user identity of the first electronic device;

broadcasting a discovery announcement message signed using the private key; and

transmitting, by the first electronic device to the network server, the public key and a list of network entities authorized to obtain the public key,

wherein at least one second electronic device which intends to communicate with the first electronic device is configured to;

obtain a public key associated with the user identity of the first electronic device from the network server,

receive the discovery announcement message when the at least one second electronic device is out of a network coverage of the wireless communication network, and

verify the discovery announcement message using the public key associated with the user identity of the first electronic device, and

wherein the public key is associated with the user identity being specific to application running on the first electronic device.

4. The method of claim 3, wherein the at least one second electronic device is configured to obtain the public key when the at least one second electronic device registers for the device to device direct communication of the wireless communication network.

5. An apparatus of a network server for supporting a device to device direct communication between electronic devices in a wireless communication network, the apparatus comprises:

a transceiver configured to;

receive a request message for the device to device direct communication from a first electronic device, and

transmit a response message comprising a private key corresponding to a user identity of the first electronic device;

receive, from the first electronic device, the public key and a list of network entities authorized to obtain the public key; and

a processor configured to verify the user identity of the first electronic device in response to receiving the request message,

wherein the first electronic device is configured to broadcast a discovery announcement message signed using the private key,

wherein at least one second electronic device which intends to communicate with the first electronic device is configured to;

obtain a public key associated with the user identity of the first electronic device from the network server,

receive the discovery announcement message when the at least one second electronic device is out of a network coverage of the wireless communication network, and

verify the discovery announcement message using the public key associated with the user identity of the first electronic device, and

wherein the public key is associated with the user identity being specific to application running on the first electronic device.

6. The apparatus of claim 5, wherein the at least one second electronic device is configured to obtain the public key when the at least one second electronic device registers for the device to device direct communication of the wireless communication network.

7. An apparatus of a first electronic device for performing a device to device direct communication in a wireless communication network, the apparatus comprising:

a transceiver configured to;

transmit a request message for the device to device direct communication to a network server,

receive a response message comprising a private key corresponding to a user identity of the first electronic device,

broadcast a discovery announcement message signed using the private key, and

transmit, to the network server, the public key and a list of network entities authorized to obtain the public key; and

a controlling module configured to control the transceiver,

wherein at least one second electronic device which intends to communicate with the first electronic device is configured to;

obtain a public key associated with the user identity of the first electronic device from the network server,

receive the discovery announcement message when the at least one second electronic device is out of a network coverage of the wireless communication network, and

verify the discovery announcement message using the public key associated with the user identity of the first electronic device, and

wherein the public key is associated with the user identity being specific to application running on the first electronic device.

8. The apparatus of claim 7, wherein the at least one second electronic device is configured to obtain the public key when the at least one second electronic device registers for the device to device direct communication of the wireless communication network.