| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To implement a system and method for writing a secure file in an unauthorized channel in a serverless distributed file system after a disaster occurs, when accompanying an authenticator in secure file writes. <P>SOLUTION: The serverless distributed file system includes at least (3f + 1) participating computer members, where f is a value representing the number of faults allowable by the system. A group requires at least one authenticator for creating a file and uploading a file. A change in a file stored for use among members can be made on an unauthenticated channel, if the file change is security-protected by the authenticator and the group can verify the authenticator. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
