| 摘要 |
Disclosed are an apparatus and methods of determining if at least one data file has been de-duplicated. One example method may include receiving a filekey based on at least a portion of the content of the at least one data file, checking a de-duplication registry in a database to determine whether a pre-stored filekey is present, decrypting at least a first data associated with the filekey and at least a second data associated with the pre-stored filekey, and comparing the decrypted at least first data with the decrypted at least second data to determine whether the at least one file has been de-duplicated.
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