US20060236406A1 - System and computer based method to automatically archive and retrieve encrypted remote client data files - Google Patents

System and computer based method to automatically archive and retrieve encrypted remote client data files Download PDF

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US20060236406A1
US20060236406A1 US11/454,415 US45441506A US2006236406A1 US 20060236406 A1 US20060236406 A1 US 20060236406A1 US 45441506 A US45441506 A US 45441506A US 2006236406 A1 US2006236406 A1 US 2006236406A1
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backup
remote user
data
encrypted
client
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Abandoned
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US11/454,415
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R. Johnson
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Johnson R B
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Priority to US75224996A priority Critical
Priority to US08/892,982 priority patent/US5970149A/en
Priority to US09/239,425 priority patent/US6499108B1/en
Priority to US25583799A priority
Priority to US09/971,244 priority patent/US7080260B2/en
Application filed by Johnson R B filed Critical Johnson R B
Priority to US11/454,415 priority patent/US20060236406A1/en
Publication of US20060236406A1 publication Critical patent/US20060236406A1/en
Application status is Abandoned legal-status Critical

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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/22Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2294Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing by remote test
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14Error detection or correction of the data by redundancy in operation
    • G06F11/1402Saving, restoring, recovering or retrying
    • G06F11/1446Point-in-time backing up or restoration of persistent data
    • G06F11/1458Management of the backup or restore process
    • G06F11/1464Management of the backup or restore process for networked environments
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/602Providing cryptographic facilities or services
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/62Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218Protecting 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/62Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218Protecting 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
    • G06F21/6227Protecting 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 where protection concerns the structure of data, e.g. records, types, queries
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L29/00Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00
    • H04L29/12Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/00 - H04L27/00 characterised by the data terminal
    • H04L29/12009Arrangements for addressing and naming in data networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements or network protocols for addressing or naming
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/06Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/062Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/06Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/068Network architectures or network communication protocols for network security for supporting key management in a packet data network using time-dependent keys, e.g. periodically changing keys
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/08Network architectures or network communication protocols for network security for supporting authentication of entities communicating through a packet data network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/18Network architectures or network communication protocols for network security using different networks or paths for security, e.g. using out of band channels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communication
    • H04L9/08Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891Revocation or update of secret information, e.g. encryption key update or rekeying
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21Indexing 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
    • G06F2221/2107File encryption
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00Data processing: database and file management or data structures
    • Y10S707/99951File or database maintenance
    • Y10S707/99952Coherency, e.g. same view to multiple users
    • Y10S707/99953Recoverability
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00Data processing: database and file management or data structures
    • Y10S707/99951File or database maintenance
    • Y10S707/99952Coherency, e.g. same view to multiple users
    • Y10S707/99955Archiving or backup

Abstract

A remote user establishes an interactive session. A pre-determined backup set is encrypted at a remote user site according to a key based upon the user's password. Encrypted backup data is then transmitted to a backup archive server and decrypted utilizing the user's password generated key and re-encrypted according to a user specified backup set key and stored upon an auxiliary storage unit. The present invention further embodies a retrieval process wherein a remote user designates one or more files to be retrieved and the backup set encryption key used during the initial backup operation. Software executing within the backup archive server CPU retrieves and decrypts the specified files according to the originally specified backup set key and re-encrypts the files according to the remote user's password. Retrieved information is then transmitted to the remote user whereupon it is subsequently decrypted at the remote user site.

Description

    REFERENCE TO PENDING APPLICATIONS
  • This application is a continuation-in-part of (a) U.S. patent application Ser. No. 09/239,425 entitled “A Secure Electronic Mail System” filed on Jan. 28, 1999 and (b) 09/255,837 entitled “For Information Encoding And Transfer” filed on Feb. 23, 1999 which are continuation-in-part applications of U.S. patent application Ser. No. 08/892,982, filed Jul. 15, 1997, and entitled “Remote Access and Security System”, now U.S. Pat. No. 5,970,149; which is a continuation-in-part of U.S. patent application Ser. No. 08/752,249, filed Nov. 19, 1996, and entitled “Combined Remote Access and Security System”.
  • REFERENCE TO MICROFICHE APPENDIX
  • This application is not referenced in any microfiche appendix.
  • 1. Technical Field of the Invention
  • The invention relates generally to a data processing system of allowing for the dynamic remote configuration and utilization of a backup archive.
  • 2. Background of the Invention
  • The present invention provides for secured utilization of an encrypted backup archive. The instant invention advances the art by allowing its practice to be supported via an encrypted communications protocol interfacing with, and relying upon, the teachings, practices and claims disclosed in co-pending U.S. patent applications Ser. No. 09/239,425 and 09/255,837 (hereinafter synonymously referred to as “Secure Agent” or “SA”).
  • Secure Agent Service Overview
  • The following overview is provided to facilitate a comprehensive understanding of the teachings of the instant invention. Secure Agent utilizes a secure login sequence wherein a client connects to a Secure Agent server using a key known to both systems and a client connects and presents the server with user identification (as used herein the term “client” refers synonymously to a remote user establishing, and communicating with the instant invention through Secure Agent allocation and encryption processes as taught in the above noted applications). If recognized, the Secure Agent server initiates a protocol whereby the client's identification is verified and subsequent communication is conducted within a secured (encrypted) construct. For purposes of this overview, the term “server” should be considered a hardware configuration represented as a central processing unit wherein Secure Agent and Host DLL's are executed. The term “DLL” as used herein refers to a Secure Agent host dynamically linked library (a.k.a. Host DLL). The term “DLL” or “dynamically linked library” is used in a manner consistent with that known to those skilled in the art. Specifically, the term “DLL” refers to a library of executable functions or data that can be used by a Windows application. As such, the instant invention provides for one or more particular functions and program access to such functions by creating a static or dynamic link to the DLL of reference, with “static links” remaining constant during program execution and “dynamic links” created by the program as needed.
  • The Secure Agent server presents a variable unit of data, such as the time of day, to the client as a challenge. The client must then encrypt that data and supply it back to the server. If the server is able to decrypt the data using the stored client's key so that the result matches the original unencrypted challenge data, the user is considered authenticated and the connection continue. The key is never passed between the two systems and is therefore never at risk of exposure.
  • The initial variable unit of data seeds the transmission of subsequent data so that the traffic for each client server session is unique. Further, each byte of data transmitted is influenced by the values of previously sent data. Therefore, the connection is secure across any communication passageway including public networks such as, but not limited to, the Internet. The distance between the client and server is not of consequence but is typically a remote connection. For accountability purposes, the actions of a client may be recorded or logged to non-volatile storage at almost any detail level desired.
  • The access rights of each client (what the client is able to accomplish during a session) is governed by data stored on the Secure Agent server to which the client is associated. As an example, such rights might encompass the ability to administer and utilize the services of the server system, which would, in turn, include capabilities such as adding new client users, changing a user's rights, loading new code to the server, using a feature (or service) of the server and more.
  • Consequently, Secure Agent allows for the transmission of new code to the server and for that code to be implemented upon demand by a client. Such dynamic, real-time implementation in turn, allows for the behavior of the server to be modified. It is to this behavior modification the instant invention addresses its teachings, and thereby advances the contemporary art.
  • As will be readily appreciated by those skilled in the art, though the instant invention utilizes encryption/decryption and code recognition technology associated with Secure Agent, an alternative technology may be employed in support of the instant invention without departing from the disclosure, teachings and claims presented herein.
  • BRIEF SUMMARY OF THE INVENTION
  • The present invention is best viewed as comprised of at least two server software components with one or more client subcomponents or sub-processes disclosed in association thereto. As used throughout the instant invention specification and claims, the term “server” is used synonymously with “server central processing unit”, “server CPU”, and the term “client” is used synonymously with “host user”, “client central processing unit”, “client CPU” and “remote user”.
  • It is an object of the instant invention to provide for one or more remote backup archive server Central Processing Units (CPU) to backup one or more remote user files.
  • A further object of the instant invention is to provide for a secured logon sequence utilizing encrypted data transmission in accordance with the teachings, disclosure and claims of the above noted pending patent applications.
  • An additional object of the present invention is to provide the capability by which an administrator may add and remove one or more users with respect to backup archives.
  • Yet another object of the instant invention is to provide a facility by which an administrator may manage the security groups to which a user belongs, thus controlling the access of devices by users at any level desired down to an individual user level.
  • A further object of the instant invention is to provide the ability for a user to store and retrieve files on a auxiliary storage device communicably attached to a backup archive server CPU.
  • Yet another object of the instant invention is to allow for dynamic user specification of a backup set encryption key.
  • A further object of the instant invention is to provide for interactive retrieval capability of stored data files using a user specified backup set encryption key.
  • Another object of the instant invention is to provide a system wherein backup data files encrypted according to a user password key are received from a remote user at a backup archive server then decrypted using said encryption key based on the user's password and re-encrypted prior to storage using a backup set encryption key specified by the user during file backup.
  • A further object of the instant invention is to provide selective archiving of data files.
  • Responsive to the foregoing challenges, the Applicant has developed an innovative system to remotely configure and utilize a backup archive.
  • It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only, and are not restrictive of the invention as claimed. The accompanying drawings, which are incorporated herein by reference, and which constitute a part of this specification, illustrate certain embodiments of the invention and, together with the detailed description, serve to explain the principles of the present invention.
  • In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in this application to the details of construction and to the arrangement so the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.
  • Additional objects and advantages of the invention are set forth, in part, in the description which follows and, in part, will be apparent to one of ordinary skill in the art from the description and/or from the practice of the invention.
  • These together with other objects of the invention, along with the various features of novelty which characterize the invention, are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and the specific objects attained by its uses, reference would be had to the accompanying drawings, depictions and descriptive matter in which there is illustrated preferred embodiments and results of the invention.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a system schematic providing a conceptual overview of primary hardware and software components of the instant invention as practiced in its preferred embodiment.
  • FIG. 2 is a process step illustration of the invention's backup sequence when practiced in its preferred embodiment.
  • FIG. 3 is a process step illustration of the invention's retrieval process when practiced in its preferred embodiment.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • While the making and using of various embodiments of the present invention are discussed in detail below, it should be appreciated that the present invention provides for inventive concepts capable of being embodied in a variety of specific contexts. The specific embodiments discussed herein are merely illustrative of specific manners in which to make and use the invention and are not to be interpreted as limiting the scope of the instant invention.
  • While the invention has been described with a certain degree of particularity, it is clear that many changes may be made in the details of construction and the arrangement of components without departing from the spirit and scope of this disclosure. It is understood that the invention is not limited to the embodiments set forth herein for purposes of exemplification, but is to be limited only by the scope of the attached claim or claims, including the full range of equivalency to which each element thereof is entitled.
  • FIGS. 1 through 3 discuss and illustrate the invention as practiced in its preferred embodiment.
  • FIG. 1 illustrates a system schematic detailing primary processing components of the invention when practiced in its preferred embodiment wherein at least one security administrator central processing unit 1 has executing under dispatching control of its operating system fourth software 2 and is communicably attached to at least one backup archive server central processing unit 3 executing under the dispatching control of its operating system, second software 9 and third software 11. The backup archive server central processing unit 3 further has communicably attached an auxiliary storage unit 5 such as, but not limited to, a mass storage unit, tape device or other similarly intended structure designed to accommodate the storage and retrieval of digitalized data.
  • In addition to auxiliary storage 5 capability communicably attached to the backup archive server 3, the backup archive server 3 may optionally have attached to it a CD recorder 6.
  • Also communicably attached to the backup archive server central processing unit 3 are one or more remote users 7 (herein synomously referred to as clients, remote clients, users) each shown executing under the dispatching control of their respective operating systems first software 10. It is herein noted that the communicable attachment of central processing units in FIG. 1 may be facilitated via any network compatible means over which digitized information may be transmitted. Client side central processing unit configurations are compatible with those typically employed as web servers, database servers, application servers, workstations, personal computers, desktop computers and laptop computers. Backup archive server central processing units 3 of the instant invention are typically those hardware central processing unit configurations capable of providing information and services to one or more remote users such as, but not limited to, web servers, database servers and application servers. Said backup archive server central processing unit 3 may alternatively be configured to accommodate a single or multiple control programs each of which is capable of responding to remote user requests and interaction requirements. The resiliency and flexibility of the instant invention, however, allows for one or more backup archive server processing units 3 to be embodied as a mainframe computer employing one or more control programs each of which may have under its dispatching control functionality of multiple second 9 and third software 11 instruction sets.
  • FIG. 2 illustrates process steps associated with the instant invention's computer based method for verifying and facilitating the automated archiving of remote client data files.
  • In FIG. 2, a remote user first defines a backup set as seen at box 22 indicating information he/she desires to be stored upon the auxiliary storage device 5 of the instant invention's backup archive server central processing unit 3. To provide parameters for said backup set, the user specifies those directories and/or files to be backed up or to be excluded from said backup operation as seen at box 24, the frequency and time of day at which the specified files are to be backed up as seen at box 26, an encryption key for the backup data set as seen at box 28 and the identification of the backup archive server CPU he/she wishes to use 29. It is emphasized that the instant invention affords the remote user the security of encrypting files according to a logon password key with encrypted files received from the remote user at a backup archive server then decrypted using this password based encryption key and re-encrypted prior to storage using a backup set encryption key specified by the user during file backup and retrieval processes. Automated password key based encryption is facilitated via a secure login and transmission protocol such as disclosed in detail in co-pending U.S. patent application Ser. No. 09/239,425 entitled “A Secure Electronic Mail System” filed on Jan. 28, 1999.
  • The co-pending application further includes references to supporting detail and disclosure with said detail, disclosure and co-pending application incorporated herein by reference in their totality. Once the remote user 7 has logged on to the backup archive server 3 and been verified via second software 9 as an authorized user, first software 10 operating within each remote user central processing unit 7 encrypts data to be transmitted to the backup central processing unit according to a generated encryption key based upon the user's password. As scheduled, or optionally via a manual input entry, the remote client machine 7 logs onto the backup archive server 3 using a pre-authorized user id and password 30.
  • The backup of specified user files is then initiated via transmission of the encrypted data stream encoded according to the user's password key 32. In so doing, the first software 10 of the instant invention ensures that only files which have been modified since the last backup are transmitted to the backup archive server central processing unit 3. User files are then decrypted via third software 11 using the remote user's password encryption key and then re-encrypted according to a remote user determined and dynamically specified backup key 36, said backup key specified in element 28. The re-encrypted information is then stored in an auxiliary storage device as indicated earlier, such as a mass storage unit 5 or optional CD burner 6.
  • FIG. 3 illustrates the invention's computer based method for verifying, facilitating and retrieving backed up remote client data files. In FIG. 3, a remote user first logs onto a backup archive server 3 using a predefined user id and password as shown at box 42. The successfullly logged on user then specifies the location where retrieved files are to be stored on the remote/client machine as shown at box 44, and then specifies a location from which the remote user wishes to retrieve files from as shown at box 46. Having specified the location from which to recover retrievable and selective backup files, the user next specifies the encryption key of the backup set used when the backup set was created 48. The encryption key had been designated initially at the time of the backup sets'creation.
  • The user next determines which files are to be recovered as shown at box 50 and third software 11 residing within the backup archive server central processing unit 3 retrieves those files and decrypts them on the server as shown at box 52, utilizing the client provided encryption key for decrypting purposes. The decrypted retrieved files are then re-encrypted according to the remote user's sign on/password based encryption key as shown at box 54 and the re-encrypted files are then transmitted to the remote user as shown at box 56. Once received by the remote user, the remote user once again via his/her based password encryption key decrypts the files and renders recognizable data contained therein.

Claims (5)

1-11. (canceled)
12. A system to automatically archive and retrieve encrypted remote client data files comprising:
at least one backup archive server central processing unit connected to a network;
at least one auxiliary storage device communicably attached to said backup archive server central processing unit, wherein communication between said backup archive server central processing unit and said auxiliary storage device is encrypted;
at least one client central processing unit communicably attached to said backup archive server central processing unit wherein all communication is encrypted;
first software for transmitting at least one remote client duplicate backup file encrypted according to the remote client's password across a network from said client central processing unit to said backup archive server central processing unit and for processing encrypted data communicated from second software, said first software executing within said client central processing unit;
second software for processing encrypted data communicated from said first software, validating authorized remote client access and storing said transmitted client back-up file, said second software executing within said backup archive server central processing unit and further including a software instruction set for transmitting data between said backup archive server central processing unit and a suitable data archival device; and
third software wherein all data transmitted between said client and said backup archive server central processing units is encrypted data.
13. The system to automatically archive and retrieve encrypted remote client data files in accordance with claim 12 further comprising at least one robotic CD rom, DVD, or other suitable data archival device and media recording and printing device communicably attached to said backup archive server central processing unit.
14. A computer based method for automatically archiving and retrieving remote client data files comprising:
(a) a remote user specifying a back-up set to archive;
(b) said remote user specifying files to be archived or excluded;
(c) said remote user specifying the frequency and time of day of automated archiving activity;
(d) said remote user specifying an encryption key for said defined backup set;
(e) said remote user scheduling or manually requesting a remote client machine log on to a backup archive server;
(f) said user specifying the identification of a backup server CPU to be utilized for backup purposes;
(g) transmitting from said remote user across a network to a backup archive server remote user defined files which have been modified since last backup;
(h) decrypting at said backup archive server data identified in (g);
(i) re-encrypting the data decrypted in (h) according to a remote user determined and specified backup set key in (d); and
(j) storing data re-encrypted in (i) to an auxiliary storage device.
15. The computer based method for automatically archiving and retrieving remote client data files according to claim 14 further comprising:
(a). a remote user logging on to a backup archive server using a pre-authorized user ID and password;
(b). said remote user specifying a client CPU file location to which retrieved files are to be stored;
(c). said remote user specifying an appropriate backup set from which to recover files;
(d). said remote user specifying the encryption key of the backup set to be restored;
(e). said remote user specifying files within said backup set to be retrieved;
(f). retrieving remote client data which has been encrypted according to a remote user determined and specified backup set key;
(g). decrypting the data retrieved in (f);
(h). re-encrypting the data decrypted in (g) according to said remote user's password key; and,
(i). transmitting data re-encrypted in (h) to a remote user authorized to receive said data.
US11/454,415 1996-11-19 2006-06-16 System and computer based method to automatically archive and retrieve encrypted remote client data files Abandoned US20060236406A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US75224996A true 1996-11-19 1996-11-19
US08/892,982 US5970149A (en) 1996-11-19 1997-07-15 Combined remote access and security system
US09/239,425 US6499108B1 (en) 1996-11-19 1999-01-28 Secure electronic mail system
US25583799A true 1999-02-23 1999-02-23
US09/971,244 US7080260B2 (en) 1996-11-19 2001-10-04 System and computer based method to automatically archive and retrieve encrypted remote client data files
US11/454,415 US20060236406A1 (en) 1996-11-19 2006-06-16 System and computer based method to automatically archive and retrieve encrypted remote client data files

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Application Number Priority Date Filing Date Title
US11/454,415 US20060236406A1 (en) 1996-11-19 2006-06-16 System and computer based method to automatically archive and retrieve encrypted remote client data files

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
US09/239,425 Continuation-In-Part US6499108B1 (en) 1996-11-19 1999-01-28 Secure electronic mail system
US25583799A Continuation-In-Part 1999-02-23 1999-02-23
US09/971,244 Continuation US7080260B2 (en) 1996-11-19 2001-10-04 System and computer based method to automatically archive and retrieve encrypted remote client data files

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US11/454,415 Abandoned US20060236406A1 (en) 1996-11-19 2006-06-16 System and computer based method to automatically archive and retrieve encrypted remote client data files

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Cited By (17)

* Cited by examiner, † Cited by third party
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