| 摘要 |
The present invention is capable of determining the rights to a file base d on providing a descriptor. The descriptor can be calculated using an algor ithm, which may be cryptographic and/or non-cryptographic. The descriptor ma y further be based on the file contents, metadata of the file, other file da ta, or any combination thereof to uniquely identify the file in a shared fil e repository. Since the descriptor is generated based on file data it will b e the same regardless of which user generates it. Accordingly, only one copy of the file needs to be maintained in the shared file repository, thereby r educing the amount of network bandwidth required to assure the file is backe d up and further reducing the amount of storage required to backup the files . This results in a vastly more efficient method of backup in terms of proce ssing time, network bandwidth, and storage requirements. |
