Invention Grant
US09015479B2 Host device and method for super-distribution of content protected with a localized content encryption key 有权
用本地化内容加密密钥保护的内容超级分发的主机设备和方法

Host device and method for super-distribution of content protected with a localized content encryption key
Abstract:
In one embodiment, a host device creates a super-distribution token by encrypting a content encryption key with a super-distribution key and stores the super-distribution token and encrypted content retrieved from a source storage device in a target storage device. In another embodiment, a host device provides a super-distribution token to a server, wherein the server is configured to generate an activation token from the super-distribution token, receive the activation token from the server, retrieve a content encryption key from the activation token, and decrypt encrypted content received from a storage device using the content encryption key retrieved from the activation token.
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