| 摘要 |
A "trusted" search engine 214 is provided with a means 302 to obtain rights to decrypted data on a digital fights management (DRM) system 306 for the purposes of indexing. The search engine then parses the decrypted content to produce a searchable index with which the end user can locate encrypted data alongside open unencrypted data for example on the internet. The indexer 216 may be issued with an identity which is recognised by the DRM system to differentiate it from other users and enabled search engines. The access rights may be selectively revoked or granted by the DRM system. |
