Kong Wai Chan

US Patent:

7941830, May 10, 2011

Filed:

Nov 1, 2006

Appl. No.:

11/592000

Inventors:

Mark W. Painter - Fremont CA, US
Shuosen Robert Liu - San Jose CA, US
Jianda Li - San Jose CA, US
Kong Yew Chan - San Mateo CA, US

Assignee:

Trend Micro Incorporated - Tokyo

International Classification:

G06F 7/04
G06F 15/16
G06F 17/30
G06F 9/00
G06F 17/00
H04L 29/06

US Classification:

726 5, 726 2, 726 3, 726 11

Abstract:

In one embodiment, an authentication protocol used in a network security service is performed over non-secure connection, such as HTTP. A router subscribing to the service may send a service request for information about a URL to a server computer providing the service. The service request may be included in a first data set posted by the router to the server computer. The first data set may be described by an HTML form and include an encrypted device authenticator used by the server computer to validate the router. The first data set may further include a server authentication code. In responding to the service request, the server computer returns the server authentication code to the router along with information about the URL. The response may be in a second data set, such as an XML document sent by the server computer to the router over an HTTP connection.

US Patent:

8402520, Mar 19, 2013

Filed:

Apr 1, 2011

Appl. No.:

13/078381

Inventors:

Mark W. Painter - Fremont CA, US
Shuosen Robert Liu - San Jose CA, US
Jianda Li - San Jose CA, US
Kong Yew Chan - San Mateo CA, US

Assignee:

Trend Micro Incorporated - Tokyo

International Classification:

G06F 7/04
G06F 15/16
G06F 17/30
H04L 29/06
G06F 9/00
G06F 17/00

US Classification:

726 5, 726 2, 726 3, 726 11

Abstract:

In one embodiment, an authentication protocol used in a network security service is performed over non-secure connection, such as HTTP. A router subscribing to the service may send a service request for information about a URL to a server computer providing the service. The service request may be included in a first data set posted by the router to the server computer. The first data set may be described by an HTML form and include an encrypted device authenticator used by the server computer to validate the router. The first data set may further include a server authentication code. In responding to the service request, the server computer returns the server authentication code to the router along with information about the URL. The response may be in a second data set, such as an XML document sent by the server computer to the router over an HTTP connection.

US Patent:

7886043, Feb 8, 2011

Filed:

Mar 29, 2007

Appl. No.:

11/693386

Inventors:

Kong Yew Chan - San Mateo CA, US
Shuosen Robert Liu - San Jose CA, US
Jianda Li - San Jose CA, US
Bharath Kumar Chandra Sekhar - Santa Clara CA, US
Pei-wei Wu - Sunnyvale CA, US

Assignee:

Trend Micro Inc - Tokyo

International Classification:

G06F 15/173
G06F 12/00
G06F 7/00
H04W 4/00

US Classification:

709224, 370338, 711108, 707 3

Abstract:

Methods and apparatus for rating Uniform Resource Locators (URLs) are disclosed. The method includes determining a request size pertaining to a length of the URL to be rated and for generating a rating request message containing the URL. The rating request message is a DNS (domain name system) message if the request size is less than or equal to a predefined size limitation, and the rating request message is a HTTP (hypertext transfer protocol) message if the request size is greater than the predefined size limitation.