Method and apparatus for retrieving selected information from a secure information source

• US 5,592,549 A
• Filed: 06/15/1995
• Issued: 01/07/1997
• Est. Priority Date: 06/15/1995
• Status: Expired due to Term

• Current Assignee: Harmony Logic Systems LLC (Intellectual Ventures LLC)
• Original Assignee: Infosafe Systems Incorporated
• Inventors: Nagel, Robert, Lipscomb, Thomas H.
• Primary Examiner(s): CANGIALOSI, SALVATORE A
• Application Number:
  US08/491,531
• Time in Patent Office: 572 Days
• Field of Search: 380/4, 380/25
• US Class Current: 705/52
• CPC Class Codes: G06F 21/109 by using specially-adapted hardware at the client
• CPC Class Codes: G06F 21/16 Program or content traceability, e.g. by watermarking
• CPC Class Codes: G06F 2211/007 Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
• CPC Class Codes: G06F 2221/2101 Auditing as a secondary aspect

Abstract

A device is disclosed for retrieving information from a secure electronic information source, wherein at least some of the information is in encrypted form and may be decrypted for use. The device comprises:

(a) a computer, having an input device and a display device, for selecting information to be retrieved from the information source;

(b) an information retrieval device, coupled to the computer, for retrieving the selected information from the information source;

(c) a decryption device, coupled to the computer, for decrypting at least portions of the selected information retrieved from the information source; and

(d) a data logging device, coupled to the computer, for maintaining a data log of the selected information as it is retrieved from said information source and decrypted. According to the invention, a unique brand code is automatically, electronically added to at least some of the selected and decrypted information, and to the data log.

Claims

1. In apparatus for retrieving information from a secure electronic information source, wherein at least some of said information is in encrypted form and are decrypted for use;

and wherein said apparatus comprises;

(a) a control device for selecting information to be retrieved from said information source;

(b) an information retrieval device, coupled to said control device, for retrieving said selected information from said information source;

(c) a decryption device, coupled to said control device, for decrypting at least portions of said selected information retrieved from said information source; and

(d) a data logging device, coupled to said control device, for maintaining a data log of said selected information as it is retrieved from said information source and decrypted;

the improvement comprising the method steps of automatically electronically;

(1) adding a unique brand code to at least some of said selected and decrypted information; and

(2) adding said brand code to said data log in association with the identity of said selected and decrypted information;

whereby at least some of said selected and decrypted information includes a brand code.

2. The method defined in claim 1, wherein said brand code is a plurality of alphanumeric characters.

3. The method defined in claim 2, wherein said brand code includes a serial number.

4. The method defined in claim 2, wherein said brand code includes the date of retrieval of the information with which it is associated.

5. The method defined in claim 2, wherein said brand code includes the date and time of retrieval of the information with which it is associated.

6. The method defined in claim 2, wherein said brand code includes a representation of the site license option selected by the user.

7. The method defined in claim 2, wherein said brand code includes an error detection code for detecting errors in the remainder of the brand code.

8. The method defined in claim 1, wherein said brand code is added to said selected and decrypted information at at least one prescribed location between the beginning and end thereof, thereby to make removal of said brand code difficult for the user.

9. The method defined in claim 1, wherein said brand code is added to said selected and decrypted information at a plurality of locations therein, thereby to make removal of said brand code difficult for the user.

10. The method defined in claim 1, further comprising the step of adding an error detecting code to said selected and decrypted information with said brand code, thereby to determine whether said brand code has been removed.

11. The method defined in claim 1, wherein said selected and decrypted information has a plurality of sections, and wherein a brand code is added to each of said sections.

12. The method defined in claim 1, wherein said apparatus further comprises a remote central computer and a communication link for transmitting data from said data log to said central computer, and wherein said method further comprises the step of transmitting to said central computer each brand code associated with said selected and decrypted information.

13. The method defined in claim 12, wherein said log includes an identifier of each unit of said selected and decrypted information, and wherein said transmitting step includes the step of transmitting to said central computer both the identifier and brand code of said selected and decrypted information.

14. The method defined in claim 13, wherein said log further includes a user charge of each unit of said selected and decrypted information, and wherein said transmitting step includes the step of transmitting to said central computer said user charge along with said identity and brand code of said selected and decrypted information.

15. The method defined in claim 13, wherein said log further includes the date on which each unit of said selected and decrypted information was retrieved, and wherein said transmitting step includes the step of transmitting to said central computer said date along with said identity and brand code of said selected and decrypted information.

16. The method defined in claim 12, wherein said transmitting step is performed each time that a selected information is retrieved and said brand code is added thereto.

17. The method defined in claim 12, wherein said transmitting step is performed at periodic intervals.

18. The method defined in claim 12, wherein said control device is a computer which runs at least one application program having identification data associated therewith;

wherein said selected and decrypted information is used by said computer in connection with said application program and wherein said transmitting step includes the step of transmitting to said central computer both said identification data and said brand code of said selected and decrypted information.

19. The method defined in claim 1, wherein said information source is a mass storage medium.

20. The method defined in claim 1, wherein said mass storage medium is a CD-ROM.