Method and apparatus for supporting multiple trust zones in a digital rights management system
First Claim
1. A rights management system for managing use of items having usage rights associated therewith, said system comprising:
- a first activation device defining a first trust zone and being adapted to issue a first software package that enforces first usage rights within the first trust zone,wherein the first trust zone includes one or more user devices associated therewith and which are activated by the first software package for receiving items within the first trust zone;
a second activation device defining a second trust zone and being adapted to issue a second software package that enforces second usage rights within the second trust zone,wherein the second trust zone includes one or more user devices associated therewith and which are activated by the second software package for receiving items within the second trust zone;
at least one first license device associated with said first trust zone, said first license device being adapted to generate a license associated with said items and including the first usage rights specifying a manner of use of the items, said license specifying one or more trust zones in which said license is valid; and
at least one user device associated with said first trust zone, said user device being adapted to receive said first software package, receive said license associated with said items, and to use said items in accordance with said license,wherein said items are digital content, andsaid license is one of;
an open license that specifies that said digital content is used in accordance with the usage rights by user devices having said first software package or said second software package, anda closed license that permits said digital content to be used in accordance with the usage rights only by user devices having said first software package.
1 Assignment
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Accused Products
Abstract
Digital rights management method and system for items having usage rights. A first activation device defines a first trust zone. A first license device associated with the first trust zone generates an open license having usage rights associated with a first item. A second activation device defines a second trust zone and is adapted to issue a software package that enforces usage rights. A user device associated with the second trust zone is adapted to receive the software package from the second activation device, to receive the open license associated with the first item, and to use the first item in accordance with the open license. In addition, a method is provided for enforcing a license granting usage rights associated with a protected item, and for classifying a license, the license being an open license or a closed license.
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Citations
39 Claims
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1. A rights management system for managing use of items having usage rights associated therewith, said system comprising:
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a first activation device defining a first trust zone and being adapted to issue a first software package that enforces first usage rights within the first trust zone, wherein the first trust zone includes one or more user devices associated therewith and which are activated by the first software package for receiving items within the first trust zone; a second activation device defining a second trust zone and being adapted to issue a second software package that enforces second usage rights within the second trust zone, wherein the second trust zone includes one or more user devices associated therewith and which are activated by the second software package for receiving items within the second trust zone; at least one first license device associated with said first trust zone, said first license device being adapted to generate a license associated with said items and including the first usage rights specifying a manner of use of the items, said license specifying one or more trust zones in which said license is valid; and at least one user device associated with said first trust zone, said user device being adapted to receive said first software package, receive said license associated with said items, and to use said items in accordance with said license, wherein said items are digital content, and said license is one of; an open license that specifies that said digital content is used in accordance with the usage rights by user devices having said first software package or said second software package, and a closed license that permits said digital content to be used in accordance with the usage rights only by user devices having said first software package. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for managing use of items having usage rights associated therewith, said method comprising the steps of:
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defining a first trust zone and a second trust zone, each trust zone having an activation device associated therewith and adapted to issue a first and second software package, respectively, that enforces usage rights to control use of said items within the first and second trust zones, respectively, wherein the first and second trust zones include one or more user devices associated therewith and which are activated by the first and second software packages for receiving items within the first and second trust zones, respectively; and generating a license associated with said items in said first trust zone, wherein said license includes usage rights specifying a manner of use and a specification of at least one of an open license and a closed license that determines whether said items are usable in at least one of said first trust zone and said second trust zone, said open license specifies that said digital content is used in accordance with the usage rights by user devices having said first software package or said second software package, and said closed license permits said digital content to be used in accordance with the usage rights only by user devices having said first software package. - View Dependent Claims (24, 25, 26, 27, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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28. A method for enforcing a license granting usage rights associated with a protected item to control use of the protected item within a trust zone comprising the steps of:
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determining whether said license was issued in said trust zone or outside of said trust zone, wherein said trust zone includes one or more user devices associated therewith and which are activated by a first software package for receiving the protected item within the trust zone; determining whether said license is an open license or a closed license, wherein said open license specifies that said protected item is used in accordance with the usage rights by user devices having the first software package or a second software package, and said closed license permits said protected item to be used in accordance with the usage rights only by user devices having the first software package; if said license is a closed license issued outside of said trust zone, prohibiting use of said protected item within said trust zone; and if said license is an open license issued outside of said trust zone, permitting use of said protected item within said trust zone.
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29. A license adapted to be associated with a protected item to control use of the protected item, said license comprising:
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usage rights that specify a manner of use for said protected item; and a license classification indicating whether said license is an open license a permitting use of said protected item outside of said trust zone or a closed license prohibiting use of said protected item outside of said trust zone, wherein said trust zone includes one or more user devices associated therewith and which are activated by a software package for receiving the protected item within the trust zone. - View Dependent Claims (30)
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Specification