CA2242596A1 - System for controlling access and distribution of digital property - Google Patents

System for controlling access and distribution of digital property

Info

Publication number
CA2242596A1
CA2242596A1 CA002242596A CA2242596A CA2242596A1 CA 2242596 A1 CA2242596 A1 CA 2242596A1 CA 002242596 A CA002242596 A CA 002242596A CA 2242596 A CA2242596 A CA 2242596A CA 2242596 A1 CA2242596 A1 CA 2242596A1
Authority
CA
Canada
Prior art keywords
data
rules
access
portions
protected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002242596A
Other languages
French (fr)
Other versions
CA2242596C (en
Inventor
Paul B. Schneck
Marshall D. Abrams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intellectual Ventures II LLC
Original Assignee
Mrj, Inc.
Paul B. Schneck
Marshall D. Abrams
The Mitre Corporation
Trident Data Systems, Inc.
Veridian Information Solutions, Inc.
Veridian Systems Division
General Dynamics Advanced Information Systems, Inc.
Beechtree Verifides Management Llc
Verifides Technology Corp.
Zofillip Pro Group Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24337542&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2242596(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mrj, Inc., Paul B. Schneck, Marshall D. Abrams, The Mitre Corporation, Trident Data Systems, Inc., Veridian Information Solutions, Inc., Veridian Systems Division, General Dynamics Advanced Information Systems, Inc., Beechtree Verifides Management Llc, Verifides Technology Corp., Zofillip Pro Group Llc filed Critical Mrj, Inc.
Publication of CA2242596A1 publication Critical patent/CA2242596A1/en
Application granted granted Critical
Publication of CA2242596C publication Critical patent/CA2242596C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

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    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G—PHYSICS
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    • G06F21/106—Enforcing content protection by specific content processing
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0822—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using key encryption key
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    • G06F21/101—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities
    • G06F21/1011—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities to devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2137—Time limited access, e.g. to a computer or data
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    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2141—Access rights, e.g. capability lists, access control lists, access tables, access matrices
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    • G06F2221/2143—Clearing memory, e.g. to prevent the data from being stolen
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    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2145—Inheriting rights or properties, e.g., propagation of permissions or restrictions within a hierarchy
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00666—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of erasing or nullifying data, e.g. data being overwritten with a random string
    • G11B20/00673—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of erasing or nullifying data, e.g. data being overwritten with a random string wherein the erased or nullified data include a cryptographic key
    • H—ELECTRICITY
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    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash
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    • H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
    • H04L2463/101—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measures for digital rights management

Abstract

The digital data access and distribution system (100) includes two main components: a data distributor (102) and a user (104). The data distributor (102) takes data (106) and produces packaged data (108) which are provided to the user (104) via the communication channel (105), perhaps in return for some form of payment (110). Corresponding to each of the distributor (102) and the user (104) are the system's authoring mechanism (112) and access mechanism (114). The authoring mechanism (112) of the distributor (102) takes the data (106) to be packaged and produces packaged data (108) which is provided to the user (104) by the distribution mechanism (118).

Claims (44)

1. A method of controlling access to data comprising the steps of:
protecting portions of the data;
determining rules concerning access rights to the data;
preventing unauthorized access to the protected portions of the data other than in a non-useable form;
and limiting each and every access to the data only in accordance with the rules as enforced by a mechanism protected by tamper detection.
2. A method of distributing data for subsequent controlled use of the data by a user, the method comprising the steps of:
protecting portions of the data;
preventing access to the protected portions of the data other than in a non-useable form;
determining rules concerning access rights to the data;
protecting the rules;
providing the protected portions of the data and the protected rules;
whereby the user is provided controlled access to the data only in accordance with the rules as enforced by a mechanism protected by tamper detection.
3. A method of distributing data for subsequent controlled use of the data by a user, some of said data having access rules already associated therewith, the method comprising the steps of:
protecting portions of the data;

preventing access to the protected portions of the data other than in a non-useable form;
determining rules concerning access rights to the data;
combining with said determined rules any rules previously associated with the data;
protecting the combined rules; and providing the protected portions of the data and the protected combined rules;
whereby the user is provided controlled access to the data only in accordance with the combined rules as enforced by an access mechanism protected by tamper detection.
4. A method of controlling secondary distribution of data, the method comprising the steps of:
protecting portions of the data;
preventing access to the protected portions of the data other than in a non-useable form;
determining rules concerning access rights to the data;
protecting the rules;
providing the protected portions of the data and the protected rules to a device having an access mechanism protected by tamper detection; and limiting transmission of the protected portions of the data from the device only as protected data or in accordance with the rules as enforced by the access mechanism.
5. A method of controlling access to data with a computer system having an input/output (i/o) system for transferring data to and from all i/o devices, said i/o system being specific to said computer system, the method comprising the steps of:
protecting portions of the data;
determining rules concerning access rights to the data;
preventing access to the protected portions of the data other than in a non-useable form; and limiting each and every access to the data only in accordance with the rules as enforced by said i/o system.
6. A method of accessing data having protected data portions and rules concerning access rights to the protected portions, the method comprising the steps of:
preventing access to the protected portions other than in a non-useable form; and limiting each and every access to the data only in accordance with the rules as enforced by a mechanism protected by tamper detection.
7. A method as in any one of claims 1, 3, 4 and 5 wherein the step of protecting portions of the data comprises the step of encrypting the portions of the data, and wherein the step of preventing access prevents access to the encrypted portions of the data other than in encrypted form.
8. A method as in claim 7, wherein said step of encrypting encrypts the portions of the data with a data encrypting key, said data encrypting key having a corresponding data decrypting key, said method further comprising the step of:

encrypting the data encrypting key.
9. A method as in claim 8, further comprising the step of:
providing a decrypting key corresponding to said key encrypting key.
10. A method as in any one of claims 2 and 3, wherein the step of protecting the rules comprises the step of encrypting the rules.
11. A method as in claim 10, wherein the step of protecting portions of the data comprises the step of encrypting the portions of the data, and wherein the step of preventing access prevents access to the encrypted portions of the data other than in encrypted form.
12. A method as in claim 11, wherein the step of encrypting the rules comprises encrypting the rules with a rule encrypting key, and the step of encrypting the portions of the data comprises encrypting the portions of the data with a data encrypting key, the method further comprising the step of encrypting the data encrypting key.
13. A method as in any one of claims 1, 2, 3, 4, 5 and 6, wherein said rules indicate at least one of:
(a) which users are allowed to access the protected portions of the data, (b) distribution rights of the data, (c) access control rights of the user, (d) access control quantities, and (e) payment requirements, and, when the rules indicate which users are allowed to access the protected portions of the data, the method further comprises the step of:
allowing the user access to a protected portion of the data only if the rules indicate that the user is allowed to access that portion of the data;
when the rules indicate distribution rights of the data, the method further comprises the step of:
allowing distribution of the data only in accordance with the distribution rights indicated in the rules;
when the rules indicate access control rights of the user, the method further comprises the step of:
allowing the user to access the data only in accordance with the access control rights indicated in the rules;
when the rules indicate access control quantities, the method further comprises the step of:
allowing access to the data only in accordance with the access control quantities indicated in the rules;
when the rules indicate payment requirements, the method further comprising the step of:
allowing access to the data only if the payment requirements indicated in the rules are satisfied.
14. A method as in claim 13, wherein the access control rights include at least one of:
(a) local display rights, (b) printing rights, (c) copying rights, (d) execution rights, (e) transmission rights, and (f) modification rights, and wherein the access control quantities include at least one of:
(g) a number of allowed read-accesses to the data;
(h) an allowable size of a read-access to the data;
(i) an expiration date of the data;
(j) an intensity of accesses to the data;
(k) an allowed level of accuracy and fidelity;
and (l) an allowed resolution of access to the data.
15. A method as in any one of claims 1, 2, 3, 4, 5 and 6, further comprising the step of destroying data stored in the mechanism when tampering is detected.
16. A method as in any one of claims 2, 3 and 4, wherein the step of providing provides the protected portions and the protected rules together as a package.
17. A method as in any one of claims 2, 3 and 4, wherein the step of providing provides the protected portions and the protected rules separately.
18. A method as in claim 6, wherein the protected data portions are encrypted and wherein the step of preventing access prevents access to the encrypted portions of the data other than in encrypted form.
19. A device for displaying images represented by data comprising protected data portions and rules concerning access rights to the data, the device comprising:
a tamper detecting mechanism;
means for storing the rules;
means for accessing the data only in accordance with the rules, whereby user access to the protected data portions is permitted only if the rules indicate that the user is allowed to access the portions of the data, said access being enforced by said tamper detecting mechanism; and means for displaying the images represented by the accessed data.
20. A device for outputting images represented by data comprising protected data portions and rules concerning access rights to the data, the device comprising:
a tamper detecting mechanism;
means for storing the rules;
means for accessing the data only in accordance with the rules, whereby user access to the protected data portions is permitted only if the rules indicate that the user is allowed to access the portions of the data, said access being enforced by said tamper detecting mechanism; and means for outputting the images represented by the accessed data.
21. A device for outputting an audio signal represented by data comprising protected data portions and rules concerning access rights to the data, the device comprising:

a tamper detecting mechanism;
means for storing the rules;
means for accessing the data only in accordance with the rules, whereby user access to the protected data portions is permitted only if the rules indicate that the user is allowed to access the portions of the data, said access being enforced by said tamper detecting mechanism; and means for outputting the audio signal represented by the accessed data.
22. A device for controlling access to data, the data comprising protected data portions and rules concerning access rights to the data, the device comprising:
storage means for storing the rules; and means for accessing the protected data portions only in accordance with the rules, whereby user access to the protected data portions is permitted only if the rules indicate that the user is allowed to access the portions of the data.
23. A device as in claim 22, further comprising:
means for storing data accessed by said means for accessing.
24. A device for outputting an output signal based on data comprising protected data portions and rules concerning access rights to the data, the device comprising:
a tamper detecting mechanism;
means for storing the rules;
means for accessing the data only in accordance with the rules, whereby user access to the protected data portions is permitted only if the rules indicate that the user is allowed to access the portions of the data, said access being enforced by said tamper detecting mechanism; and means for outputting the output signal represented by the accessed data.
25. A device as in claim 22, wherein the protected data portions are encrypted using a data encrypting key and wherein the data encrypting key is encrypted with a key encrypting key, the device further comprising:
means for obtaining a data decrypting key corresponding to the data encrypting key using a key decrypting key corresponding to the key encrypting key;
means for storing the data decrypting key; and wherein said means for accessing comprises:
means for decrypting the protected data portions using the data decrypting key.
26. A device as in claim 22, further comprising:
tamper detecting mechanism for detecting tampering with said device.
27. A device as in claim 25, further comprising:
tamper detecting mechanism for detecting tampering with said device.
28. A device as in claim 27, wherein said tamper detection means comprises:
means for destroying data including keys and other cryptographic variables stored in the device when tampering is detected.
29. A device as in any one of claims 19, 21, 23, 24 and 26, wherein said tamper detecting mechanism comprises:
means for destroying data stored in the device when tampering is detected.
30. A device for distributing data for subsequent controlled use of the data by a user, the device comprising:
means for protecting portions of the data;
means for preventing access to the protected portions of the data other than in a non-useable form;
means for determining rules concerning access rights to the data;
means for protecting the rules; and means providing the protected portions of the data and the protected rules;
whereby a user is provided controlled access to the data only in accordance with the rules as enforced by an access mechanism protected by tamper protection.
31. A device for distributing data for subsequent controlled use of the data by a user, some of said data having access rules already associated therewith, the device comprising:
means for protecting portions of the data;
means for preventing access to the protected portions of the data other than in a non-useable form;
means for determining rules concerning access rights to the data;
means for combining with said determined rules any rules previously associated with the data;
means for protecting the combined rules; and means for providing the protected portions of the data and the protected combined rules;
whereby the user is provided controlled access to the data only in accordance with the combined rules as enforced by an access mechanism protected by tamper detection.
32. A device as in any one of claims 30 and 31, wherein the means for providing provides the protected portions and the protected rules together as a package.
33. A device as in any one of claims 30 and 31, wherein the means for providing provides the protected portions and the protected rules separately.
34. A device as in any one of claims 30 and 31, wherein the means for protecting portions of the data comprises means for encrypting the portions of the data, and wherein the means for preventing access prevents access to the encrypted portions of the data other than in encrypted form.
35. A device as in any one of claims 30 and 31, wherein the means for protecting the rules comprises means for encrypting the rules.
36. A device as in claim 35, wherein the means for protecting portions of the data comprises means for encrypting the portions of the data, and wherein the means for preventing access prevents access to the encrypted portions of the data other than in encrypted form.
37. A device as in any one of claims 30 and 31, wherein the rules are protected such that they can be viewed and they cannot be changed.
38. A device as in claim 36, wherein the means for encrypting the rules comprises means for encrypting the rules with a rule encrypting key, the means for encrypting the portions of the data comprises means for encrypting the portions of the data with a data encrypting key, the device further comprising means for encrypting the data encrypting key.
39. A device as in any one of claims 30 and 31, further comprising means for providing unprotected portions of the data.
40. A device as in claim 32, further comprising:
means for providing unprotected portions of the data in the package.
41. A device as in any one of claims 30 and 31, further comprising:
means for detecting tampering with the access mechanism; and means for destroying data stored in the access mechanism when tampering is detected by the tamper detecting means.
42. A device as in any one of claims 19, 20, 22, 24, 30 and 31, wherein the rules indicate at least one of:
(a) which users are allowed to access the protected portions of the data, (b) distribution rights of the data, (c) access control rights of the user, (d) access control quantities, and (e) payment requirements, and when the rules indicate which users are allowed to access the protected portions of the data, the device further comprises:
means for allowing the user access to a protected portion of the data only if the rules indicate that the user is allowed to access that portion of the data;
when the rules indicate distribution rights of the data, the device further comprises:
means for allowing distribution of the data only in accordance with the distribution rights indicated in the rules;
when the rules indicate access control rights of the user, the device further comprises:
means for allowing the user to access the data only in accordance with the access control rights indicated in the rules;
when the rules indicate access control quantities, the device further comprises:
means for allowing access to the data only in accordance with the access control quantities indicated in the rules;
when the rules indicate payment requirements, the device further comprising:

means for allowing access to the data only if the payment requirements indicated in the rules are satisfied.
43. A device as in claim 42, wherein the access control rights include at least one of:
(a) local display rights, (b) printing rights, (c) copying rights, (d) execution rights, (e) transmission rights, and (f) modification rights, and wherein the access control quantities include at least one of:
(g) a number of allowed read-accesses to the data;
(h) an allowable size of a read-access to the data;
(i) an expiration date of the data;
(j) an intensity of accesses to the data;
(k) an allowed level of accuracy and fidelity;
and (l) an allowed resolution of access to the data.
44. A process control system comprising a device for controlling access to data, the data comprising protected data portions and rules concerning access rights to the data, the device comprising:
a tamper detecting mechanism;
means for storing the rules; and means for accessing the protected data portions only in accordance with the rules, whereby output of protected data portions is permitted only in such manner as is permitted by the rules, said accessing being enforced by said tamper detecting mechanism.
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JP2000503154A (en) 2000-03-14
US20030172034A1 (en) 2003-09-11
US20090222673A1 (en) 2009-09-03
EP0880840A1 (en) 1998-12-02
EP0880840A4 (en) 2002-10-23
WO1997025798A1 (en) 1997-07-17
US20140123218A1 (en) 2014-05-01
CA2242596C (en) 2012-06-19
US6314409B2 (en) 2001-11-06
US20010021926A1 (en) 2001-09-13
AU1690597A (en) 1997-08-01
US5933498A (en) 1999-08-03
US20030163428A1 (en) 2003-08-28

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