Patent ID: 7421411

Claim:
A method comprising: sending with a wireless device a request for a voucher for protected content of a digital asset encrypted with a content key and information expressed in the voucher for obtaining rights to the content, said digital asset to be downloaded to the wireless device from any one of a plurality of content servers; receiving with the wireless device a primary and a secondary voucher separate from said protected content; said primary voucher allowing a user to render content a plurality of times, and including a first pointer to the content, and further including a first reference to the secondary voucher; said secondary voucher allowing a preview of the content to be distributed to another user, and including a second pointer to the content, and further including a second reference to the secondary voucher allowing the secondary voucher to create a duplicate of itself; said primary and secondary vouchers having metadata including: identification information of the content associated with the voucher; use information specifying the type of use intended for the content; and restriction information limiting usage of the content; said primary voucher including transaction information including said content key; said use information including selective intent rules specifying at least whether no right to copy the content is given to the receiver, whether right to copy the content is relinquished by the sender and given to the receiver, or whether right to copy the content is kept by the sender and also given to the receiver; accessing the primary voucher in the wireless device to cause a duplicate of the content as a primary content copy to be transmitted to a receiving terminal with the right to copy the content in response to said selective intent rules; using the first reference in the primary voucher to access the secondary voucher in the wireless device to cause a preview copy of the content to be transmitted to a receiving terminal with no right to copy the content in response to said selective intent rules; enabling the wireless device to decrypt said encrypted content with said content key; and interpreting said use information in said vouchers to carry out said selective intent rules.