Method of generating key data for successful communication during a network link

• US 20040131188A1
• Filed: 03/07/2003
• Published: 07/08/2004
• Est. Priority Date: 01/02/2003
• Status: Abandoned Application

• Current Assignee: Tatung Company
• Original Assignee: Tatung Company
• Inventors: Hsieh, Chih-Chiang, Chen, Hung-Ming, Tai, Lu-Yun, Wang, Chiao-Wei
• Application Number:
  US10/382,869
• Publication Number:
  US 20040131188A1
• Time in Patent Office: Days
• US Class Current: 380/270
• 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 9/0866 involving user or device identifiers, e.g. serial number, physical or biometrical information, DNA, hand-signature or measurable physical characteristics
• CPC Class Codes: H04L 9/0891 Revocation or update of secret information, e.g. encryption key update or rekeying
• CPC Class Codes: H04W 12/50 Secure pairing of devices
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A method of generating key data for successful communications during a network link, which is applied in two information devices with wireless fidelity (WiFi) wireless modules. The two information devices use identical non-private key data (SSID and WEP private key) to achieve an initial connection, and exchange their own unique network card ID numbers. The first information device and the second information device both generate new key data by utilizing the first unique ID number and the second unique ID number to ensure security of the network link.

Claims

1. A method of generating key data for successful communication during a network link between a first information device and a second information device, wherein the first information device and the second information device both have a network card, and each network card has its own unique ID number, the method comprising:

step A;

obtaining a first unique ID number of the first information device and a second unique ID number of the second information device; and

step B;

generating key data by utilizing the first unique ID number and the second unique ID number;

whereby the key data is unique to ensure network link security.

2. The method as claimed in claim 1, wherein the key data includes a setting ID and a private key.

3. The method as claimed in claim 2 is wherein the method is adapted for use in a wireless network connection.

4. The method as claimed in claim 3 wherein the method is adapted for use in a wireless network connection conforming to a wireless fidelity (WiFi) communications standard, wherein the setting ID is a service set identifier (SSID), and the private key is a wired equivalent privacy (WEP) private key.

5. A preset process for a network link between a first information device and a second information device, wherein the first information device and the second information device both have a network card, and each network card has its own unique ID number, the process comprising:

step A;

the first information device and the second information device communicating with each other with a pre-determined non-private key data;

step B;

the first information device and the second information device both obtaining a first unique ID number of the first information device and a second unique ID number of the second information device;

step C;

the first information device and the second information device both generating key data by utilizing the first unique ID number and the second unique ID number; and

step D;

the first information device and the second information device using the key data generated by step C to start a network link.

6. The process as claimed in claim 5, wherein the key data includes a setting ID and a private key.

7. The process as claimed in claim 6 wherein the process is adapted for use in a wireless network connection.

8. The process as claimed in claim 7 wherein the process is adapted for use in a wireless network connection conforming to a wireless fidelity (WiFi) communication standard, wherein the setting ID is a service set identifier (SSID), and the private key is a wired equivalent privacy (WEP) private key.

9. A preset process for a network link between a first information device and a second information device, wherein the first information device and the second information device both have a network card, and each network card has its own unique ID number, the process embedded in the first information device comprising:

step A;

the first information device using a pre-determined non-private key data to communicate with the second information device;

step B;

the first information obtaining a second unique ID number of the second information device from the second information device;

step C;

the first information device generating key data by utilizing a first unique ID number of the first information device and the second unique ID number; and

step D;

the first information device using the key data generated by step C to start a network link.

10. The process as claimed in claim 9, wherein the key data includes a setting ID and a private key.

11. The process as claimed in claim 10 wherein the process is adapted for use in a wireless network connection.

12. The process as claimed in claim 11 wherein the process is adapted for use in a wireless network connection conforming to a wireless fidelity (WiFi) communication standard, wherein the setting ID is a service set identifier (SSID), and the private key is a wired equivalent privacy (WEP) private key.