Enforcement architecture and method for digital rights management system for roaming a license to a plurality of user devices

A method of enabling the use of a first digital license on a plurality of devices, said first digital license having a first expiration date and permitting the use of a content item and being bound to a first of said plurality of devices by a first public/private key pair associated with said first device, said method comprising:

• sending, to a license synchronization server, a second public/private key pair associated with a second of said plurality of devices, said second key pair being different from said first key pair;
• and
• receiving, from said license synchronization server, a second digital license bound to said second device by said second key pair, said second digital license being based on said first digital license, wherein said second digital license has a second expiration date is set to expire before said first digital license, and wherein failure of said second device to contact a license synchronization server prior to said second expiration date results in removal of said second device from a registration store on said license synchronization server;
• disabling said first digital license;
• decaying said second digital license into expiration;
• and
• reactivating said first digital license to said first device and accessing said content item through said first device using said reactivated first digital license.

A system for roaming a digital license to a plurality of computing devices comprising:

• a receiving module which receives over a computer network:
• from a first of said plurality of computing devices, a first digital license which permits the use of a content item and is bound to said first of said plurality of computing devices by a first public/private key pair associated with said first of said plurality of computing devices;
• and
• a second public/private key pair associated with a second of said plurality of computing devices different from said first of said plurality of computing devices, said second key pair being different from said first key pair;
• a license-rewriting module which uses said second key pair to create a second digital license based on said first digital license, said second digital license being bound to said second device, said second digital license expiring before said first digital license;
• a license synchronization server having a transmitting module for transmitting said second digital license to said second device, said server also disabling said first digital license in said first device, wherein failure of said second device to contact the license synchronization server prior to expiration of said second digital license results in removal of said second device from a registration store on said license synchronization server;
• and
• a user interface wherein said first digital license is reactivated to said first device such that said content item is accessed through said first device using said reactivated first digital license.