CA2525249A1 - Distributed filesystem network security extension - Google Patents

Distributed filesystem network security extension Download PDF

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Publication number
CA2525249A1
CA2525249A1 CA002525249A CA2525249A CA2525249A1 CA 2525249 A1 CA2525249 A1 CA 2525249A1 CA 002525249 A CA002525249 A CA 002525249A CA 2525249 A CA2525249 A CA 2525249A CA 2525249 A1 CA2525249 A1 CA 2525249A1
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CA
Canada
Prior art keywords
file
port
access
logic
secure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002525249A
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French (fr)
Other versions
CA2525249C (en
Inventor
Susann Marie Keohane
Gerald Francis Mcbrearty
Shawn Patrick Mullen
Jessica Kelley Murillo
Johnny Meng-Han Shieh
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International Business Machines Corp
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Individual
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Publication of CA2525249A1 publication Critical patent/CA2525249A1/en
Application granted granted Critical
Publication of CA2525249C publication Critical patent/CA2525249C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/606—Protecting data by securing the transmission between two devices or processes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • H04L63/102—Entity profiles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2141—Access rights, e.g. capability lists, access control lists, access tables, access matrices

Abstract

A security protocol that dynamically implements enhanced mount security of a filesystem when access to sensitive files on a networked filesystem is requested. When the user of a client system attempts to access a specially-tagged sensitive file, the server hosting the filesystem executes a software code that terminates the current mount and reconfigures the server ports to accept a re-mount from the client via a more secure port. The server reconfigured server port is provided the IP address of the client and matches the IP address during the re-mount operation. The switch to a secure mount is completed in a seamless manner so that authorized users are allowed to access sensitive files without bogging down the server with costly encryption and other resource-intensive security features. No significant delay is experienced by the user, while the sensitive file is shielded from unauthorized capture during transmission to the client system.

Claims (20)

1. A method for providing security for transmission of at least a first file, the method being for use in a data processing system comprising (1) a storage medium on which is stored said at least a first file having a preset access permission, (2) at least a first standard port and a second secure port for connecting said data processing system to external client systems, and (3) logic for selectively routing transmission of said at least one file via said first port and said second port, said method comprising:
responsive to a request for access to said first file by said external client system, checking said preset access permission of said first file; and when said preset access permission of said first file indicates secured access is required for said first file, dynamically routing a transmission of said first file to external client system via said second port.
2. The method of Claim 1, further comprising:
routing said transmission of said first file via said first standard port when said preset access permission indicates a regular access is sufficient.
3. The method of Claim 1, further comprising:
enabling a first mount of said data processing system via said first standard port; and enabling a second mount of said data processing system via said second secure port only when said first file requires secured access.
4. The method of Claim 1, wherein said data processing system further comprises an encryption module associated with said second secured port, said dynamic routing step comprising:
first encrypting said first file utilising said encryption module.
5. The method of Claim 1, wherein said data processing system further comprises reconfiguration logic for configuring said first standard port and said second secured port for supporting a mount by said client system, said dynamic routing step comprising:
first configuring said second secure port to support a remount operation received from said client system;
terminating a current mount on said first standard port with said client system; and storing session parameters of said current mount to enable seamless continuation of said session on said second secure port.
6. The method of Claim 5, wherein said configuring and storing step includes:
retrieving an IP address of sand client system;
placing said IP address in a configuration of said second secure port, wherein said second secure port automatically recognises a remount operation from said client system and re-establishes the session with said client system.
7. The method of Claim 1, wherein said preset access permission is a bit within metadata linked to said first file and said method further comprises reading a value of said bit to evaluate whether said first file requires secure access.
8. The method of Claim 1, wherein said preset access permission includes an identification of which specific users are permitted to access said first file via a secured access, said method further comprising:
comparing a user of said client system with said specific users with permission to access said file; and when said user is one of said specific users, automatically initiating a re-routing of a transmission of said first file via said second secure port.
9. The method of Claim 1, wherein said first standard port connects to said client system via a first unsecured network and said second secure port connects to said client system via a second secured network.
10. The method of Claim 1, wherein:
said data processing system is a server within a network having a first subnet connecting said first standard port to said client system and a second subnet connecting said second secure port to said client system;
said first file is stored within a filesystem;
said checking step includes accessing said filesystem and locating said first file; and said routing step includes transmitting said file via said second subnet when said file requires secure access and transmitting said first file via said first subnet when said first file does not require secure access.
11. A system for providing security for transmission of at least a first file, for use in a data processing system comprising (1) a storage medium on which is stored said at least a first file having a preset access permission, (2) at least a first standard port and a second secure port for connecting said data processing system to external client systems, and (3) logic for selectively routing transmission of said at least one file via said first port and said second port, said system comprising:
logic, responsive to a request for access to said first file by said external client system, for checking said preset access permission of said first file; and when said preset access permission of said first file indicates secured access is required for said first file, logic for dynamically routing a transmission of said first file to external client system via said second port.
12. The system of Claim 11, further comprising:
logic for routing said transmission of said first file via said first standard port when said preset access permission indicates a regular access is sufficient.
13. The system of Claim 11, further comprising:
logic for enabling a first mount of said data processing system via said first standard port; and logic for enabling a second mount of said data processing system via said second secure port only when said first file requires secured access.
14. The system of Claim 11, wherein said data processing system further comprises an encryption module associated with said second secured port, said logic for dynamically routing comprising:
logic for first encrypting said first file utilising said encryption module.
15. The system of Claim 11, wherein said data processing system further comprising reconfiguration logic for configuring said first standard port and said second secured port for supporting a mount by said client system, said logic for dynamically routing comprising:
logic for first configuring said second secure port to support a remount operation received from said client system;
logic for terminating a current mount on said first standard port with said client system;
and
16 logic for storing session parameters of said current mount to enable seamless continuation of said session on said second secure port.
16. The system of Claim 15, wherein said configuring and storing step includes:
logic for retrieving an IP address of said client system;
logic for placing said IP address in a configuration of said second secure port, wherein said second secure port automatically recognises a remount operation from said client system and re-establishes the session with said client system.
17. The system of Claim 11, wherein said preset access permission is a bit within metadata linked to said first file and said system further comprises reading a value of said bit to evaluate whether said first file requires secure access.
18. The system of Claim 11, wherein said preset access permission includes an identification of which specific users are permitted to access said first file via a secured access, said system further comprising:
logic for comparing a user of said client system with said specific users with permission to access said file; and when said user is one of said specific users, logic for automatically initiating a re-routing of a transmission of said first file via said second secure port.
19. The system of Claim 11, wherein said first standard port connects to said client system via a first unsecured network and said second secure port connects to said client system via a second secured network.
20. The system of Claim 11, wherein:
said data processing system is a server within a network having a first subnet connecting said first standard port to said client system and a second subnet connecting said second secure port to said client system;
said first file is stored within a filesystem;
said logic for checking includes means for accessing said filesystem and locating said first file; and said logic for routing includes means for transmitting said file via said second subnet when said file requires secure access and transmitting said first file via said first subnet when said first file does not require secure access.
CA2525249A 2003-05-22 2004-04-15 Distributed filesystem network security extension Expired - Fee Related CA2525249C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/443,675 2003-05-22
US10/443,675 US7917751B2 (en) 2003-05-22 2003-05-22 Distributed filesystem network security extension
PCT/GB2004/001629 WO2004104902A1 (en) 2003-05-22 2004-04-15 Distributed filesystem network security extension

Publications (2)

Publication Number Publication Date
CA2525249A1 true CA2525249A1 (en) 2004-12-02
CA2525249C CA2525249C (en) 2011-03-29

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CA2525249A Expired - Fee Related CA2525249C (en) 2003-05-22 2004-04-15 Distributed filesystem network security extension

Country Status (12)

Country Link
US (1) US7917751B2 (en)
EP (1) EP1625524B1 (en)
JP (1) JP4602981B2 (en)
KR (1) KR100906119B1 (en)
CN (1) CN100530207C (en)
AT (1) ATE339733T1 (en)
BR (1) BRPI0410569B1 (en)
CA (1) CA2525249C (en)
DE (1) DE602004002401T2 (en)
IL (1) IL172054A (en)
TW (1) TWI282229B (en)
WO (1) WO2004104902A1 (en)

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Also Published As

Publication number Publication date
IL172054A0 (en) 2011-08-01
BRPI0410569A (en) 2006-06-20
US20040236745A1 (en) 2004-11-25
EP1625524A1 (en) 2006-02-15
JP2007503652A (en) 2007-02-22
EP1625524B1 (en) 2006-09-13
WO2004104902A1 (en) 2004-12-02
ATE339733T1 (en) 2006-10-15
CN100530207C (en) 2009-08-19
BRPI0410569B1 (en) 2016-08-23
IL172054A (en) 2012-09-24
KR20060015714A (en) 2006-02-20
US7917751B2 (en) 2011-03-29
DE602004002401D1 (en) 2006-10-26
DE602004002401T2 (en) 2007-09-20
CN1791878A (en) 2006-06-21
TWI282229B (en) 2007-06-01
KR100906119B1 (en) 2009-07-07
JP4602981B2 (en) 2010-12-22
TW200507570A (en) 2005-02-16
CA2525249C (en) 2011-03-29

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