| 摘要 |
One embodiment of the present invention provides a system for accessing an encrypted file through a file system. During operation, the system receives a request to access the encrypted file. In response to the request, the system sends an encrypted file key for the encrypted file from the file system to a tamper-resistant module. Next, the tamper-resistant module uses a master secret to decrypt the encrypted file key to restore the file key, wherein the master secret is obtained from an external source by the tamper-resistant module. The system then uses the file key to access the encrypted file. |
