IP Library Granted Patent US 7,120,796
Granted Patent B2
US 7,120,796 · App. 10/171,604 · Granted Oct 10, 2006

Method and system for preventing computer worm dissemination using encryption

Assignee: Copytele, Inc.
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Quick Facts
Patent No.
US 7,120,796
App. No.
10/171,604
Granted
Oct 10, 2006
Kind
B2
Abstract

A method and system for preventing a computer worm from unauthorized use of data indicative of at least one e-mail address stored in a data base is presented. The method comprises the steps of encrypting said data, receiving at least one e-mail message by accessing an e-mail server, decrypting said selected ones of said data to provide access thereto, and addressing at least one e-mail message using said decrypted data. The method further includes the step of re-encrypting the selected decrypted data. In one aspect of the invention, the method of encrypting the data comprises the steps of obtaining a key value, selecting each of the at least one e-mail address, encrypting the selected e-mail address using the key value; and storing said encrypted e-mail in the data base.

Claims (48)

1. A method for preventing dissemination of computer worms comprising the steps of:

scrambling data indicative of e-mail addresses using a known scrambling technique, wherein the scrambling key is obtained from an external source; and

storing said scrambled data in lieu of said e-mail addresses in a data base.

2. The method as recited in claim 1 wherein said scrambling technique is selected from the group consisting of: public/private key, translation, proxy, substitution.

3. The method as recited in claim 1 further comprising the steps of:

descrambling selected ones of said scrambling data using a known scrambling technique, wherein said scrambling key is obtained from an external source; and

addressing at least one e-mail message using said descrambled selected data.

4. The method as recited in claim 3 further comprising the steps of:

scrambling said decrypted data using a known scrambling technique, wherein said scrambling key is obtained from an external source; and storing said scrambled data in lieu of said e-mail addresses.

5. The method as recited in claim 1 , wherein said data base is selected from the group consisting of: a local data base, a local address file, a local address book, a remotely located data base, a remotely located address book, a remotely located address file.

6. The method of claim 1 , wherein said external source comprises an input device.

7. The method of claim 6 , wherein said input device comprises a keyboard.

8. The method of claim 7 , wherein said input device comprises a keypad.

9. The method of claim 1 , further comprising accessing said data base.

10. The method of claim 9 , further comprising opening at least one e-mail application.

11. The method of claim 10 , further comprising downloading e-mail messages.

12. The method of claim 11 , further comprising opening at least one of said e-mail messages.

13. The method of claim 1 , further comprising connecting to at least one Internet service provider.

14. The method of claim 1 , wherein said database comprises a first table comprising user indicative information distinct from e-mail addresses and a second table comprising e-mail addresses.

15. The method of claim 14 , wherein each entry in said first table corresponds to an entry in said second table.

16. The method of claim 1 , wherein said database comprises data packets, and each of said data packets has a given location corresponding to an e-mail address.

17. The method of claim 1 , wherein said external source comprises a network.

18. The method of claim 1 , wherein said external source comprises a memory device.

19. The method of claim 1 , wherein said external source comprises a magnetic data medium.

20. The method of claim 1 , wherein said external source comprises an optical data medium.

21. The method of claim 1 , wherein said known technique comprises asymmetric cryptography.

22. The method of claim 1 , wherein said scrambling comprises:

determining whether a key value is available; and,

requesting said key value be input when said key value is unavailable.

23. A method for preventing dissemination of computer worms, comprising the steps of:

accessing an e-mail server containing at least one e-mail message;

verifying data indicative of e-mail addresses stored in a data base are encrypted; and

encrypting said e-mail addresses determined not encrypted using a key value obtained from an external source.

24. The method as recited in claim 23 wherein said external source is a memory medium.

25. The method as recited in claim 23 wherein said external source is an interactive medium.

26. The method of claim 23 , further comprising opening at least one e-mail application.

27. The method of claim 26 , further comprising downloading said at least one e-mail message.

28. The method of claim 27 , further comprising opening said at least one e-mail message.

29. The method of claim 23 , further comprising connecting to at least one Internet service provider.

30. The method of claim 23 , wherein said database comprises a first table comprising user indicative information distinct from e-mail addresses and a second table comprising e-mail addresses.

31. The method of claim 30 , wherein each entry in said first table corresponds to an entry in said second table.

32. The method of claim 23 , wherein said database comprises data packets, and each of said data packets has a given location corresponding to an e-mail address.

33. The method of claim 23 , wherein said external source comprises an input device.

34. The method of claim 33 , wherein said input device comprises a keyboard.

35. The method of claim 33 , wherein said input device comprises a keypad.

36. The method of claim 23 , wherein said external source comprises a network.

37. The method of claim 23 , wherein said external source comprises a magnetic data medium.

38. The method of claim 23 , wherein said external source comprises an optical data medium.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2015
From: ITUS CORPORATION
To: ITUS CORPORATION
Reel/Frame 035849/0190 →
CHANGE OF NAME Recorded Oct 29, 2014
From: COPYTELE, INC.
To: ITUS CORPORATION
Reel/Frame 034095/0469 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 14, 2002
From: DISANTO, FRANK J.; KRUSOS, DENIS A.; LEWIT, EDWARD
To: COPYTELE, INC.
Reel/Frame 013008/0679 →
Continuity (2)
Provisional Application 6029873700 · Jun 14, 2001
Related Publication 20030018904A1 · Jan 23, 2003