Watchdog for trusted electronic content distributions

• US 6,219,788 B1
• Filed: 05/14/1998
• Issued: 04/17/2001
• Est. Priority Date: 05/14/1998
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Perez, Ronald, Flavin, Robert Alan, Smith, Sean William, Nihal, Perwaiz
• Primary Examiner(s): Trammell, James P.
• Assistant Examiner(s): ELISCA, PIERRE E
• Application Number:
  US09/078,671
• Time in Patent Office: 1,069 Days
• Field of Search: 348/7, 348/1, 348/8, 348/10, 348/152, 348/385, 348/143, 348/150, 395/226, 395/210, 713/200, 713/160, 713/201, 713/170, 713/176, 713/202, 713/194, 380/255, 380/202, 380/239, 380/203, 380/281, 380/204, 380/283, 380/284, 705/10, 705/26, 705/51, 705/53, 705/64, 705/67, 705/68, 705/69, 705/75, 705/76, 705/80, 455/2
• US Class Current: 713/194
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• 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
• CPC Class Codes: G06F 2221/2135 Metering
• CPC Class Codes: G06Q 30/02 Marketing; Price estimation or determination; Fundraising

Abstract

A computer watchdog system monitors and controls distribution content sent form producers, through distributors, to subscribers. The computer watchdog system acting to ensure the just execution of agreements between a producer of content and a distributor of content. The computer watchdog system serving as an agent trusted by both producers and distributors. The computer watchdog system may be equipped with tamper protection for resisting exogenous attempts to gain unauthorized access to the system. The computer watchdog system may be installed entirely within distributor'"'"'s sites. Alternatively, the computer watchdog system may reside partially within distributor'"'"'s sites and partially within subscriber'"'"'s sites. The computer watchdog system logs and reports on information relating to the distribution of content. Further, the computer watchdog system may selectively transform content provided by a producer, customizing the content for distributors and subscribers.

Claims

1. A computer watchdog system for processing a producer set provided by a producer, the computer watchdog comprising:

a processing engine for creating a plurality of records of distribution content and for generating a plurality of reports based on the producer set;

a distribution log for storing the plurality of records of distribution content;

an authenticated execution unit for validating a set of operations performed by the processing engine and transmitting an authenticating signal responsive to said set of operations being validated; and

tamper protection means for detection of unauthorized access to the computer watchdog system by detecting one of a plurality of tamper indicators, wherein the plurality of tamper indicators include at least one of;

temperature change, voltage change, presence of X-rays, physical intrusion.

2. A computer watchdog system as recited in claim 1, wherein the processing engine includes means for preparing a distributor set by selectively transforming the producer set.

3. A computer watchdog system as recited in claim 2, wherein the processing engine includes means for customizing the distributor set by selectively transforming the distributor set into subscriber data.

4. A computer watchdog system as recited in claim 1, further comprising a watchpuppy for verifying ones of the plurality of records of distribution content.

5. A computer watchdog system as recited in claim 1, wherein the plurality of records of distribution content each include a unique identifier of content.

6. A computer watchdog system as recited in claim 1, wherein the plurality of records of distribution content each include at least one of:

time of data receipt, date of data receipt, size of data, length of data transmission, format of content, identity of distributor, identity of subscribers.

7. A computer watchdog system as recited in claim 1, further comprising tamper protection for preventing unauthorized access to the computer watchdog system by modifying portions of system memory.

8. A computer watchdog system as recited in claim 1, wherein each of the plurality of reports include at least one of the plurality of records of distribution content stored in the distribution log.

9. A computer watchdog system as recited in claim 1, wherein each of the plurality of reports include at least one of:

time of data receipt, date of data receipt, size of data, length of data transmission, format of content, identity of distributor, identity of subscribers.

10. A computer watchdog system as recited in claim 1, wherein the producer set includes:

data, at least one of a plurality of distributor selection instructions, at least one of a plurality of distributor transformation instructions.

11. A computer watchdog system as recited in claim 10, wherein ones of the plurality of distributor selection instructions selects ones of a plurality of distributors based on data included in the producer set.

12. A computer watchdog system as recited in claim 10, wherein ones of the plurality of distributor transformation instructions embed a cryptographic watermark in data included in the producer set.

13. A computer watchdog system as recited in claim 10, wherein ones of the plurality of distributor transformation instructions produce at least one of:

subscriber data, at least one of a plurality of subscriber selection instructions, at least one of a plurality subscriber transformation instructions.

14. A computer watchdog system as recited in claim 13, wherein ones of the plurality of subscriber selection instructions authenticate a subscriber by verifying a digital signature against an encryption key.

15. A computer watchdog system as recited in claim 13, wherein ones of the plurality of subscriber transformation instructions embed subscriber and distributor identities in a cryptographic watermark.

16. A method of processing a producer set provided by a producer to a distributor for distribution to a subscriber, comprising the steps of:

locating at the distributor'"'"'s location a computer watchdog system for;

creating a plurality of records of distribution content;

generating a plurality of reports based on the producer set;

storing the plurality of records of distribution content;

validating a set of operations performed on the producer set;

transmitting an authenticating signal to the producer on a watchdog-producer communication loop if said set of operations are validated; and

detecting unauthorized access to the computer watchdog by being responsive to a plurality of tamper indicators which include at least one of temperature change, presence of X-rays, and physical intrusion.

17. A method of processing a producer set according to claim 16, further comprising the step of preparing a distributor set by selectively transforming the producer set.

18. A method of processing a producer set according to claim 17, further comprising the step of customizing the distributor set by selectively transforming the distributor set into subscriber data.

19. An article of manufacture comprising a computer usable medium having computer readable program code means embodied therein for processing a producer set provided by a producer to a distributor for distribution to a subscriber, the computer readable program code means in said article of manufacture comprising computer readable program code means for causing a computer watchdog to effect:

(a) creating a plurality of records of distribution content;

(b) generating a plurality of reports based on the producer set;

(c) storing the plurality of records of distribution content;

(d) validating a set of operations performed on the producer set;

(e) transmitting an authenticating signal if said set of operations are validated; and

(f) providing tamper protection for detecting unauthorized access to the computer watchdog by being responsive to a plurality of tamper indicators including at least one of temperature change, presence of X-rays, and physical intrusion.

20. An article of manufacture as recited in claim 19, the computer readable program code means in said article of manufacture further comprising computer readable program code means for causing a computer to effect:

preparing a distributor set by selectively transforming the producer set.

21. An article of manufacture as recited in claim 20, the computer readable program code means in said article of manufacture further comprising computer readable program code means for causing a computer to effect:

customizing the distributor set by selectively transforming the distributor set into subscriber data.

22. A computer program product comprising a computer usable medium having computer readable program code means embodied therein for causing processing a producer set provided by a producer to a distributor for distribution to a user, the computer readable program code means in said computer program product comprising computer readable program code means for causing a watchdog computer located at the distributor'"'"'s location to effect:

(a) creating a plurality of records of distribution content;

(b) generating a plurality of reports based on the producer set;

(c) storing the plurality of records of distribution content;

(d) validating a set of operations performed on the producer set;

(e) transmitting in response to a producer query an authenticating signal on a watchdog-producer communication loop if said set of operations are validated; and

providing tamper protection for detection of unauthorized access to the computer watchdog by being responsive to a plurality of tamper indicators including at least one for temperature, change, presence of X-rays and physical intrusion.

23. A computer program product as recited in claim 22, the computer readable program code means in said computer program product further comprising computer readable program code means for causing a computer to effect:

preparing a distributor set by selectively transforming the producer set.

24. A computer program product as recited in claim 23, the computer readable program code means in said computer program product further comprising computer readable program code means for causing a computer to effect:

customizing the distributor set by selectively transforming the distributor set into subscriber data.

25. A storage device readable by machine, tangibly embodying a program of instructions executable by the machine to perform method steps for processing a producer set provided by a producer to a distributor for distribution to a subscriber, said method comprising the steps of:

(a) creating a plurality of records of distribution content;

(b) generating a plurality of reports based on the producer set;

(c) storing the plurality of records of distribution content;

(d) validating a set of operations performed on the producer set;

(e) transmitting an authenticating signal is said set of operations are validated; and

(f) providing tamper protection for the detection of unauthorized access to the computer watchdog by being responsive to a plurality of tamper indicators including at least one for temperature change, presence of X-rays and physical intrusion.

26. A computer watchdog system for processing a set of advertisements provided by an advertiser and distributed by a distributor, characterized by a computer watchdog located at the distributor'"'"'s site comprising:

a processing engine for creating a plurality of records of distributed advertisements and for generating a plurality of reports based on the set of advertisements;

a distribution log for storing the plurality of records of distributed advertisements;

an authenticated execution unit for validating a set of operations performed by the processing engine and transmitting an authenticating signal responsive to said set of operations being validated;

a watchdog-producer communication loop through which the producer may query the watchdog; and

tamper protection to detect unauthorized access to the computer watchdog by being responsive to a plurality of tamper indicators.

27. A computer watchdog system as recited in claim 26, wherein the processing engine includes means for preparing a cable TV distribution set by selecting ones of the set of advertisements and changing the language of ones of the set of advertisements.

28. A computer watchdog system for processing a producer set provided by a producer to a distributor for distribution to a user, characterized by a computer watchdog at the distributor'"'"'s location comprising:

a processing engine for creating a plurality of records of distribution content and for generating a plurality of reports based on the producer set;

a distribution log for storing the plurality of records of distribution content;

an authenticated execution unit for validating a set of operations performed by the processing engine and transmitting an authenticating signal responsive to said set of operations being validated; and

tamper protection logic for detecting unauthorized access to the computer watchdog system by detecting one of a plurality of tamper indicators, wherein the plurality of tamper indicators include at least one of;

temperature range, voltage change, presence of X-rays, physical intrusion.

29. In a computer watchdog system for processing a producer set provided by a producer to a distributor for distribution to a user characterized by, a computer watchdog at the distribution location comprising:

a processing engine for creating a plurality of records of distribution content and for generating a plurality of reports based on the producer set;

a distribution log for storing the plurality of records of distribution content;

an authenticated execution unit for validating a set of operations performed by the processing engine that either reside in the computer watchdog system or are sent to the computer watchdog system by the producer or by a distributor, and transmitting an authenticating signal responsive to said set of operations being validated;

a watchdog-producer communication loop through which the producer can query the watchdog; and

tamper protection logic responsive to unauthorized access to the computer watchdog.