File editing system and shared file editing system with file con

Cryptography – Key management – Having particular key generator

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

380 3, 380 4, 707203, 707530, H04L 900, G06F 1724

Patent

active

058356010

ABSTRACT:
A file editing system that provides a high file content secrecy, a file version management, and an asynchronous editing is disclosed. For a high file content secrecy, the block data of files managed by a file management server device are enciphered in units of blocks, and a client device obtains the block data of the desired file in enciphered state, deciphers the obtained block data in units of blocks, carries out an editing of the desired file to obtain editing data, enciphers the editing data in units of blocks, and transmits the enciphered editing data to the file management server device. For asynchronous editing, the system includes a unit for generating editing procedure data that indicates a procedure to obtain the editing made in the desired version of the desired file by each client device, a unit for converting the editing procedure data for the desired version of the converted desired file into the editing procedure data for the latest version of the desired file, and a unit for generating record management information indicating a result of the converted editing made by each client device according to the converted editing procedure data for the latest version of the desired file.

REFERENCES:
patent: 4912637 (1990-03-01), Sheedy et al.
patent: 5185887 (1993-02-01), Takahashi et al.
patent: 5278979 (1994-01-01), Foster et al.
patent: 5357631 (1994-10-01), Howell et al.
patent: 5418945 (1995-05-01), Carter et al.
patent: 5548648 (1996-08-01), Yorke-Smith
patent: 5574906 (1996-11-01), Morris et al.
patent: 5596718 (1997-01-01), Boebert et al.
patent: 5634052 (1997-05-01), Morris
T. Takahashi et al., "A Design of Privacy Enhanced File Sharing System", Proc. 49th Annual Convention IPS Japan, Sep. 20, 1994, pp. 1-283-284.
A. Shimbo et al., "Security Mechanism of Privacy Enhanced File Sharing System", Proc. 49th Annual Convention IPS Japan, Sep. 20, 1994, pp. 1-281-282.
T. Takahashi et al., "A Concept of Distributed File System for Asynchronous Shared Editing and its Application", Proc. 36th Programming Symposium, Jan. 10, 1995, pp. 1-8.
M. Blaze, "A Cryptographic File System or UNIX", Proceedings of 1st ACM Conference on Computer and Communications Security, AT&T Bell Laboratories, Nov. 1993.
UNIX Reference Manual, Sun Release 4.1, CVS(1).
A. Shimbo et al., "Security Mechanism of Privacy Enhanced Shared File System", Proc. SCIS 95, The 1995 Symposium on Cryptography and Information Security, IEICE Japan, Jan. 1995, pp. 1-10.
Ellis et al., "Groupware: Some Issues And Experiences", Communications of the ACM, vol. 34, No. 1, pp. 38-58, (1991).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

File editing system and shared file editing system with file con does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with File editing system and shared file editing system with file con, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and File editing system and shared file editing system with file con will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1525438

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.