| US 7,478,243 B2 | ||
| On-disk file format for serverless distributed file system with signed manifest of file modifications | ||
| William J. Bolosky, Issaquah, Wash. (US); Atul Adya, Bellevue, Wash. (US); and John R. Douceur, Bellevue, Wash. (US) | ||
| Assigned to Microsoft Corporation, Redmond, Wash. (US) | ||
| Filed on Mar. 21, 2001, as Appl. No. 9/814,337. | ||
| Prior Publication US 2002/0194484 A1, Dec. 19, 2002 | ||
| Int. Cl. H04L 1/00 (2006.01) | ||
| U.S. Cl. 713—181 | 7 Claims |
| 1. In a distributed file system that stores encrypted files across multiple computers, a method comprising:
modifying one or more of the encrypted files;
computing a hash value of each modified encrypted file, one or more of the modified encrypted files comprising file data and
a metadata stream that comprises a header and an indexing structure, the indexing structure comprising one or more hashes
of the file and a structure to access the one or more hashes of the file;
collecting the hash values into a group;
computing a hash value of the group; and
digitally signing the hash value of the group of hash values.
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