| 摘要 |
<p>There is provided a system and method for an interoperable keychest. There is provided a method for use by a central key repository (CKR) or keychest to provide content access authorizations to distributors, comprising receiving a key information file including a first encrypted second key for decrypting with a first key and a content identification, decrypting the first encrypted second key using a first key to retrieve the second key, receiving, from a distributor, a key request including the content identification, encrypting the second key using a third key to generate a second encrypted second key, and transmitting the second encrypted second key to the distributor in response to the receiving of the key request. In this manner, key management for protected distributors using different DRM schemas or systems may be simplified and made interoperable.</p> |
