DIGITAL RIGHT MANAGEMENT METHOD, APPARATUS, AND SYSTEM
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United States of America Patent
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Issued Date -
Jul 4, 2013
app pub date -
Dec 28, 2012
filing date -
Dec 28, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A digital right management method, including: encrypting, by a first user equipment which has access right to shared digital contents, a key of the digital contents with at least an equipment key of a second user equipment intended to share the digital contents to generate a ciphertext of the key of the digital contents; generating, by the first user equipment, from the ciphertext a new authorization certificate corresponding to the digital contents; and transmitting, by the first user equipment, the new authorization certificate and the digital contents to the second user equipment to instruct the second user equipment to share the digital contents in accordance with the new authorization certificate.
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