| 摘要 |
Various principles for maintaining a shared repository of authorization scanning results, which may be populated with results of authorization scans of particular files (and other content units) as well as a signature for those particular files. When a particular file is to be scanned by a client computing device to determine whether it contains unauthorized software, a signature for the file may be calculated and provided to the shared repository. If the repository has a result for that file-as indicated by a signature for the file being present in the repository-the result in the repository may be provided to the client computing device that issued the query, and the client computing device may accept the answer in the shared repository. If the result is not in the repository (i.e., the file has not been scanned), then the file may be scanned, and a result may be placed in the repository. |
