Integrity Checker for Web Browser Document

• US 20080155392A1
• Filed: 03/01/2008
• Published: 06/26/2008
• Est. Priority Date: 03/02/2007
• Status: Abandoned Application

• Current Assignee: Marengo Intellectual Property Limited
• Original Assignee: Marengo Intellectual Property Limited
• Inventors: Coutts, Daryl David
• Application Number:
  US12/040,869
• Publication Number:
  US 20080155392A1
• Time in Patent Office: Days
• US Class Current: 715/229
• CPC Class Codes: G06F 16/95 Retrieval from the web
• CPC Class Codes: G06F 21/64 Protecting data integrity, e.g. using checksums, certificates or signatures
• CPC Class Codes: G06F 2221/2119 Authenticating web pages, e.g. with suspicious links

Abstract

An apparatus and method for integrity checking of a document associated with a web browser is described.

Claims

1. A method of determining if a document associated with a web browser has been altered, the method comprising:

obtaining a first information associated with the document;

responding to an event by obtaining a second information associated with the document; and

comparing the first information with the second information and based on the comparison, executing a second set of computer instructions.

2. The method of claim 1 where responding to an event comprises responding to a timer expiry.

3. The method of claim 1 where responding to an event comprises responding to an event generated by the web browser.

4. The method of claim 1 where executing a second set of computer instructions comprises at least one selected from the list of issuing an instruction to the web browser, issuing an instruction to the Document Object Model associated with the document, navigating the web browser, refreshing a page in the web browser and displaying a pop-up window.

5. An add-on for a web browser, where the add-on performs a method of determining if a document associated with a web browser has been altered, the method comprising:

obtaining a first information associated with the document;

responding to an event by obtaining a second information associated with the document; and

comparing the first information with the second information and based on the comparison, executing a second set of computer instructions.

6. The add-on in claim 5 wherein the method it performs, responding to an event comprises responding to a timer expiry.

7. The add-on in claim 5 wherein the method it performs, responding to an event comprises responding to an event generated by the web browser.

8. The add-on in claim 5 wherein the method it performs, executing a second set of computer instructions comprises at least one selected from the list of issuing an instruction to the web browser, issuing an instruction to the Document Object Model associated with the document, navigating the web browser, refreshing a page in the web browser and displaying a pop-up window.

9. A computer-readable medium having computer-executable instructions for performing a method of determining if a document associated with a web browser has been altered, the method comprising:

obtaining a first information associated with the document;

responding to an event by obtaining a second information associated with the document; and

comparing the first information with the second information and based on the comparison, executing a second set of computer instructions.

10. The computer-readable medium in claim 9 wherein the method performed by the computer-executable instructions, responding to an event comprises responding to a timer expiry.

11. The computer-readable medium in claim 9 wherein the method performed by the computer-executable instructions, responding to an event comprises responding to an event generated by the web browser.

12. The computer-readable medium in claim 9 wherein the method performed by the computer-executable instructions, executing a second set of computer instructions comprises at least one selected from the list of issuing an instruction to the web browser, issuing an instruction to the Document Object Model associated with the document, navigating the web browser, refreshing a page in the web browser and displaying a pop-up window.

13. The computer-readable medium in claim 9 where the computer-executable instructions are written in Javascript.