WO2003028025A1 - Systeme de cryptage de donnes en temps reel - Google Patents

Systeme de cryptage de donnes en temps reel Download PDF

Info

Publication number
WO2003028025A1
WO2003028025A1 PCT/GB2002/004372 GB0204372W WO03028025A1 WO 2003028025 A1 WO2003028025 A1 WO 2003028025A1 GB 0204372 W GB0204372 W GB 0204372W WO 03028025 A1 WO03028025 A1 WO 03028025A1
Authority
WO
WIPO (PCT)
Prior art keywords
procedure
monitoring
information
execution
predetermined environment
Prior art date
Application number
PCT/GB2002/004372
Other languages
English (en)
Inventor
Lee David Edwards
Ara Warkes Darzi
Sean Mackay
Edward Draper
Guang-Zhong Yang
Original Assignee
Orbb Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Orbb Limited filed Critical Orbb Limited
Publication of WO2003028025A1 publication Critical patent/WO2003028025A1/fr

Links

Classifications

    • 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
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00224—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is obtained from a remote server
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00231—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is obtained from a local external medium, e.g. a card
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00478—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier wherein contents are decrypted and re-encrypted with a different key when being copied from/to a record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/926—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation
    • H04N5/9261—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation involving data reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums

Definitions

  • the present invention relates to a system for the recording and real time encryption of multiple data streams before storing the data streams on a storage facility.
  • a data recording system provides essential backup that will reduce the number of spurious claims, potentially reduce medical defence premiums and create an environment within which the healthcare profession and the patient will feel comfortable and protected.
  • PCT/GBOl/03801 describes a data recording system in which multiple data streams are stored centrally on a data storage device.
  • the system monitors the execution of a procedure within a predetermined environment using multiple recording devices including cameras and microphones.
  • the data streams are synchronised and stored.
  • the procedure may be reviewed by downloading the data from the storage device.
  • Embodiments of the present invention provides a self contained data recorder capable of monitoring a procedure using multiple data streams in which the data streams are encrypted before being stored directly to DVD. Storing the data directly to DVD negates the need for large processors or hard disc space. Encryption is typically executed using a key system to maximise confidentially. The encrypted data streams may be accessed from the storage facility using decoding keys in order to review the monitored procedure.
  • Figure 1 is a block diagram showing the path of multiple data streams within an embodiment of the present invention
  • FIG. 2 shows the hardware included in an embodiment of the invention
  • Figure 3 shows the data flow within an embodiment of the present invention
  • FIG. 4 is a block diagram of an embodiment of the present invention including data connections
  • Figure 5 is block diagram of an embodiment of the present invention including data connections .
  • Figure 1 shows a consulting or examination room 10 which is monitored by audio recording equipment 12 and video recording equipment 14.
  • Multiple digital video signals 16 are recorded from multiple video cameras 12 positioned around the monitored area. Multiple video signals are helpful in giving different views of the environment but in some applications only one video signal may be required. Sometimes the video signals are not recorded at all.
  • Audio ambient and directional signals 18 are recorded by one or more audio receivers 14 positioned around the monitored area 10. These signals may be recorded by static microphones or microphones attached to subjects within the consulting or examination room 10. Sometimes the audio signals are not recorded at all.
  • sensors to record other types of information including movement or the output from equipment used during the procedure. This further information increases the detail available during a review of the procedure.
  • the audio and video signals are processed and compressed at 20 and 22 respectively.
  • the compressed signals are then encrypted at 24 and 26. Encryption is typically executed using private and / or public key systems.
  • the encrypted signals are then transferred and stored at an integral DVD recorder 28. It is also possible to replace the DVD recorder using any suitable data storage medium. It is also possible to simultaneously store the data on multiple storage facilities.
  • the data stored at 28 may be downloaded and stored onto further storage devices 30 or onto the internet 32.
  • the data may only be accessed and reviewed through use of decryption codes at 34. Access is only be available to those data streams to which the user has the decryption codes .
  • the encryption programme ensures that review of the recording is only undertaken with the consent of the clinician and the patient.
  • An independent, third party regulatory body may hold the final key to the data and provide the access protocols.
  • the data may be re-encrypted and re-stored at 36.
  • FIG 2 shows the hardware layout for a real time compression and encryption system used in an embodiment of the present invention.
  • the system includes a PCI plug in board 40 with a single chip encryption processor.
  • the encryption card 42 is linked to an IDE 44.
  • the IDE 44 is then linked to a PCI bus 40 which is connected to the host PC 46.
  • Figure 3 shows the software dataflow within an embodiment of the present invention.
  • the data from the preocedure is forwarded from an integrated drive electronics (IDE) 50 to the encryption driver 52 where the data is encrypted.
  • IDE integrated drive electronics
  • the encryption driver has a dedicated processor which facilitates real-time encryption of high bandwidth data channels such as streaming media including video and audio.
  • the system utilises one time only hardware and driver installation which makes all software application security enabled.
  • the embodiment of figure 3 emulates a virtual disk for the windows operating system. Any data written to the virtual disk is encrypted in real time and stored to an integrated storage media 54 for example floppy disk, hard disk, CDR or DVD-R.
  • the system uses public key technology 56 and private key technology 58 and allows the user to exchange data with other parties. No decrypted data is stored on any physical media in order to provide added system level protection.
  • data streams can only be decrypted using public keys 56 or private keys 58.
  • the user can also exchange data with other parties. If a user does not have the required key to access a particular data stream, that data stream will not be decrypted and will be unreadable to the user.
  • the system is easy to set up and once installed it enables multiple software applications 60 with disk access to have a secure route of storing security sensitive data.
  • the system is fully network compatible and can turn a share network drive fully secure.
  • the system is also fully compatible with the Internet and can also be used for secure transmission of data through the Internet.
  • Figure 4 is a block diagram an embodiment of the present invention.
  • Figure 4 includes the hardware included in the system and shows the power connections between each component .
  • the system is powered by an ATX power supply 72 which is powered by the mains at 70.
  • the ATX power supply has multiple power outputs including a 12 V output, 5 V output 74 and an ATX output 76.
  • the ATX output is used to power a single board computer 78 at the ATX input 80.
  • the ON/OFF state of the single board computer is determined by the state of the ON/OFF switch 82 which is connected to the ATX CTRL at 84.
  • a CPU fan 100 and ventilation fan 102 are powered through the single board computer.
  • the remaining hardware components in this embodiment are powered by the 12 V, 5 V output from the ATX power supply.
  • the system includes a controller 86, an inverter 88, a TFT LCD display 90, a DVD RAM drive 92, a hard disk drive 94, a camera 96 and a video connector 98 all of which are powered by the 12 V / 5 V output 74 of the ATX power supply 72.
  • FIG. 5 shows the data connections within an embodiment of the present invention.
  • the information is first recorded by the camera 96.
  • the data streams from the camera are forwarded to the video connector 98.
  • the data streams are then forwarded to the MPEG2 card 100 where they are converted into digital signals.
  • the MPEG2 card is connected to a peripheral component interconnect (PCI) 102 on the single board computer 78.
  • PCI peripheral component interconnect
  • a second PCI 104 within the single board computer 78 transfers the digital data streams to an encryption card 106.
  • Further embodiments of the invention may include facilities to record other types of information.
  • the corresponding data streams can also be connected to the encryption card at 106.
  • the digital signals are encrypted at 106 and forwarded to the real time data compression and encryption unit 108.
  • the encrypted ' data stored within the data compression and encryption unit 108 may be downloaded onto a further storage facility.
  • the embodiment of figure 5 includes a DVD RAM drive 92 and a hard disk drive 94 onto which the encrypted data can be downloaded from the data compression and encryption unit 108.
  • the DVD RAM drive 92 and hard disk drive 94 are connected to the single board computer 78 via integrated drive electronics (IDE) at 112 and 110 respectively. These connections facilitate downloading of the data for review from the DVD RAM drive 92 and hard disk drive 94.
  • the data may be accessed using a touch screen 114 which is connected to the controller 86.
  • the controller 86 is connected to the single board computer 78 using an RS232 connection 116.
  • the accessed data is displayed on the TFT LDC display 90 via the TTL connection 118.
  • embodiments of the present invention provide a means for comprehensively monitoring a particular environment .
  • Multiple data streams are recorded, encrypted in real time and stored on a data storage facility. No data is stored which is not encrypted in order to maximise the security of sensitive data.
  • the data streams can only be decoded using the associated private or public keys.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)

Abstract

L'invention concerne un système de régulation de l'exécution d'une opération dans un environnement prédéterminé. Ce système comprend des moyens d'enregistrement des informations concernant l'opération, pendant le temps d'exécution de celle-ci. Les informations enregistrées lors de l'opération comprennent l'état de l'instrumentation utilisée au cours de l'opération, le cryptage desdites informations enregistrées lors de l'opération et le stockage desdites informations cryptées.
PCT/GB2002/004372 2001-09-26 2002-09-26 Systeme de cryptage de donnes en temps reel WO2003028025A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0123140.6 2001-09-26
GB0123140A GB2380345A (en) 2001-09-26 2001-09-26 Real time encryption and storage of images of an environment

Publications (1)

Publication Number Publication Date
WO2003028025A1 true WO2003028025A1 (fr) 2003-04-03

Family

ID=9922729

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/004372 WO2003028025A1 (fr) 2001-09-26 2002-09-26 Systeme de cryptage de donnes en temps reel

Country Status (2)

Country Link
GB (1) GB2380345A (fr)
WO (1) WO2003028025A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2329424B1 (fr) 2008-08-22 2016-12-07 Datcard Systems, Inc. Système et procédé de chiffrement pour des volumes dicom

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008321A1 (fr) * 1990-10-30 1992-05-14 Roger Dennis Cooper Appareil de traitement de signaux video
US5497419A (en) * 1994-04-19 1996-03-05 Prima Facie, Inc. Method and apparatus for recording sensor data
US5654750A (en) * 1995-02-23 1997-08-05 Videorec Technologies, Inc. Automatic recording system
US5689442A (en) * 1995-03-22 1997-11-18 Witness Systems, Inc. Event surveillance system
WO1999062741A2 (fr) * 1998-06-01 1999-12-09 Robert Jeff Scaman Systeme fixe d'enregistrement d'accidents monte sur un vehicule
WO2000008585A2 (fr) * 1998-08-04 2000-02-17 Contec Medical Ltd. Systeme d'enregistrement et de communication a des fins chirurgicales

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008321A1 (fr) * 1990-10-30 1992-05-14 Roger Dennis Cooper Appareil de traitement de signaux video
US5497419A (en) * 1994-04-19 1996-03-05 Prima Facie, Inc. Method and apparatus for recording sensor data
US5654750A (en) * 1995-02-23 1997-08-05 Videorec Technologies, Inc. Automatic recording system
US5689442A (en) * 1995-03-22 1997-11-18 Witness Systems, Inc. Event surveillance system
WO1999062741A2 (fr) * 1998-06-01 1999-12-09 Robert Jeff Scaman Systeme fixe d'enregistrement d'accidents monte sur un vehicule
WO2000008585A2 (fr) * 1998-08-04 2000-02-17 Contec Medical Ltd. Systeme d'enregistrement et de communication a des fins chirurgicales

Also Published As

Publication number Publication date
GB2380345A (en) 2003-04-02
GB0123140D0 (en) 2001-11-14

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