WO2002084945A1 - Systemes et procedes d'obliteration electronique de donnees, y compris des donnees d'emplacement - Google Patents

Systemes et procedes d'obliteration electronique de donnees, y compris des donnees d'emplacement Download PDF

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Publication number
WO2002084945A1
WO2002084945A1 PCT/US2002/011380 US0211380W WO02084945A1 WO 2002084945 A1 WO2002084945 A1 WO 2002084945A1 US 0211380 W US0211380 W US 0211380W WO 02084945 A1 WO02084945 A1 WO 02084945A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
electronic
generating
generation device
location
Prior art date
Application number
PCT/US2002/011380
Other languages
English (en)
Inventor
Charles R. Chamberlain
Original Assignee
United States Postal Service
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
Priority claimed from PCT/US2001/047720 external-priority patent/WO2002049269A1/fr
Application filed by United States Postal Service filed Critical United States Postal Service
Priority to US10/474,730 priority Critical patent/US7779481B2/en
Publication of WO2002084945A1 publication Critical patent/WO2002084945A1/fr
Priority to US12/830,731 priority patent/US8417958B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3297—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving time stamps, e.g. generation of time stamps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/80—Wireless
    • H04L2209/805—Lightweight hardware, e.g. radio-frequency identification [RFID] or sensor

Definitions

  • This invention in general, relates to electronic postmarking of data.
  • this invention relates to electronic postmarking of location data.
  • an electronic postmark provides content and temporal integrity and identification authenticity for data, which is transferred over a network.
  • EPMs have traditionally been used to authenticate the identity of the sender of a particular message or to authenticate the time/date at which the message was created. Increasingly, however, not only the identity and time/date of creation are important, but also the physical or geographic location of the sender of the message is significant.
  • Authenticated location or geographic information may be used for many purposes, including, for example, being able to establish with a certain degree of confidence the location at which a particular message or data was created. But, as noted above, the present systems and methods do not permit that. Accordingly, there exists a need for electronic postmarking of location or geographic data.
  • a method for performing electronic postmarking of data including user data and location data.
  • the method includes receiving user data from a data acquisition/generation device.
  • the method further includes receiving location data from a location data acquisition/generation device.
  • the method further involves merging the user data with the location data to generate merged data.
  • the method further comprises generating an electronic postmark data structure comprising a hash value of the merged data and a time/date stamp.
  • Another embodiment consistent with the present invention is a method for performing electronic postmarking of data, including user data and location data.
  • the method includes receiving user data from a data acquisition/generation device.
  • the method further includes receiving location data from a location data acquisition/generation device.
  • the method further involves merging the user data with the location data to generate merged data.
  • the method further comprises generating an electronic postmark data structure comprising a hash value of the merged data, a time/date stamp, and a digital signature.
  • Yet another embodiment consistent with the present invention is a system for performing electronic post marking of data, including user data and location data.
  • the system includes means for receiving user data from a data acquisition/generation device.
  • the system further includes means for receiving location data from a location data acquisition/generation device.
  • the system further involves means for merging the user data with the location data to generate merged data.
  • the system further comprises means for generating an electronic postmark data structure comprising a hash value of the merged data and a time/date stamp.
  • FIG. 1 shows an exemplary system environment consistent with the present invention
  • FIG. 2A shows an exemplary standalone electronic postmarking (EPM) device consistent with the present invention
  • FIG. 2B shows an exemplary embedded EPM device consistent with the present invention
  • FIG. 3 shows an exemplary block diagram of an EPM device consistent with the invention.
  • FIG. 4 shows a flowchart of an exemplary method for performing electronic postmarking of data, including user data and location data.
  • Systems and methods consistent with the present invention perform electronic postmarking of data, including location data.
  • Electronic postmarking of location data enables one to authenticate the location data corresponding to a user data. For example, using the location data one may be able to determine the location where a particular image was captured, using for example, a digital camera.
  • location data includes, but is not limited to, data concerning the geographic location, GPS coordinates, position, altitude, longitude, latitude, or the direction of a data acquisition/generation device, such as a digital camera.
  • FIG. 1 shows an exemplary system environment consistent with the present invention.
  • a sender 102 (also referred to as a user), who has a data acquisition/generation device capable of acquiring or generating data, may send a message along with the acquired/generated data to an electronic postmarking system (EPM system) 104.
  • EPM system electronic postmarking system
  • data acquisition/generation device includes, but is not limited to, a digital camera, a digital video recorder, a personal digital assistant, a handheld computer, a laptop computer, or any other device capable of acquiring, generating, and/or storing electronic data.
  • EPM system 104 may generate an EPM using a regular EPM server, as described in U.S. Application Serial No.
  • the EPM system may also generate an EPM using a MicroEPM device, as described in, PCT Application Serial No. PCT/US01/47720, filed December 17, 2001 , by Charles R. Chamberlain and titled SYSTEM AND METHODS FOR ELECTRONIC POSTMARKING WITHOUT DIRECTLY UTILIZING AN ELECTRONIC POSTMARK SERVER, the disclosure of which is expressly incorporated herein by reference.
  • an EPM device such as a MicroEPM device, may be embedded in a data acquisition/generation device.
  • sender 102 may send data, including location data, via a network 105, such as the Internet, to EPM system 104.
  • the EPM system may then send the data to receiver 106, via a network, such as the Internet.
  • FIG. 2A shows an exemplary standalone electronic postmarking (EPM) device consistent with the present invention.
  • a user 202 may operate a data acquisition/generation device 204 to generate data.
  • data acquisition/generation device 204 can be any electronic device that is capable of generating, acquiring, and/or storing electronic data.
  • Data acquisition/generation device 204 may transfer the acquired/generated user data to an external EPM device 206 through an interface 207.
  • Data acquisition/generation device 204 may further include a location data sensor, such as a GPS sensor. Using the location data sensor (not shown), data acquisition/generation device 204 may generate data corresponding to the position, altitude, longitude, latitude, or the direction of a data acquisition/generation device, such as a digital camera.
  • data acquisition/generation device may merge the user data and the location data to create merged data, which may then be transferred via an interface connecting data acquisition/generation device 204 and EPM device 206.
  • the interface connecting data acquisition/generation device 204 and EPM device 206 may be any interface that is capable of transferring information, including an electronic, optical or a combination thereof.
  • the interface may be a network, such as the Internet, a local area network (wired or wireless).
  • the interface could also be any of the interfaces used to connect electronic devices, for example, a serial or a parallel interface for connecting I/O devices to a computer, a Uniform Serial Bus, IEEE-1394, Bluetooth, or any other interface.
  • the merged data is sent from data acquisition/generation device 204 to EPM device 206.
  • EPM device 206 may generate an electronic postmarking structure for the merged data and store the electronic postmarking structure locally. The stored electronic postmarking structure may then be transferred to EPM server 208. Alternatively, EPM device 206 may continue storing locally the electronic postmarking structures, which may be later transferred in a batch to EPM server 208.
  • FIG. 2B shows an exemplary embedded EPM device 215 consistent with the present invention.
  • an EPM device 215 may be embedded or physically incorporated into a data acquisition/generation device 214.
  • data acquisition/generation device 214 can be any electronic device that is capable of generating, acquiring, and/or storing electronic data.
  • User data and location data may be transferred within the data acquisition/generation device to embedded EPM device 215 upon a user command or it may be transferred automatically.
  • Data acquisition/generation device 214 may connect to an EPM server 216 for the generation of a batch EPM of the stored electronic postmarks.
  • FIG. 3 shows an exemplary block diagram of an EPM device 300 consistent with the invention.
  • the exemplary EPM device may include a postmark storage unit 306, a secure EPM interface 308, a postmark generation unit 310, a device interface 312, a real-time clock 314, a date generator 316, and a location data generator 318.
  • a postmark generation unit 310 uses real time data from real-time clock 314, user data and/or location data 304, a private key, and/or location data from location data generator 318, a postmark generation unit 310 creates an electronic postmark data structure.
  • Postmark generation unit may be a software module executing on a general-purpose microprocessor or an application specific integrated circuit ("ASIC").
  • the generated electronic postmark data structure may be stored in postmark storage unit 306.
  • Postmark storage unit 306 may be RAM, a flash memory, a hard drive, or any other appropriate type of electronic or optical storage.
  • a plurality of electronic postmark data structures may be stored in the postmark storage unit for transfer in a single batch later.
  • either a single electronic postmark data structure or a plurality of electronic postmark data structures may be transferred to EPM server 302 via secure EPM interface 308.
  • Data, including user data and/or location data may arrive via device interface 312.
  • a key interface (not shown) may accept a private key from an official source, such as the United States Postal Service (USPS), or any other trusted source of private keys (as described in the aforementioned U.S. Application Serial No. 09/675,677, filed September 29, 2000).
  • USPS United States Postal Service
  • Location data generator 318 may comprise at least one of a geo-position sensor, an altitude sensor, and a directional sensor.
  • the geo- position sensor may generate longitude and/or latitude information.
  • the altitude sensor may acquire information concerning the altitude of the data acquisition/generation device at the time data, such as a digital picture was acquired.
  • the directional sensor may, for example, provide information concerning the direction in which the data acquisition/generation device, is pointing at the time user data, such as a digital image from a digital camera, was generated.
  • FIG. 4 shows a flowchart of an exemplary method for performing electronic postmarking of data, including user data and location data.
  • user data including, for example, user acquired and/or user generated data
  • an EPM device such as the EPM device of FIG. 3.
  • User data may either be acquired or generated locally or it may be received via device interface 312 of FIG. 3.
  • location data including, for example, geo- position coordinates of the data acquisition/generation device
  • location data may be received via device interface 312 of FIG. 3 or may be locally generated using location data generator 318 of FIG. 3.
  • stage S.30 user data is merged with the location data to create merged data.
  • a software module (which is not shown in FIG. 3) loaded in the memory (not shown) associated with the EPM device may perform this function.
  • merging of the data may also be performed by the data acquisition/generation device.
  • stage S.40 an electronic postmark data structure is generated.
  • the merged data obtained from the previous stage is hashed using, for example, a one-way hash function.
  • any known or later developed hash function may be used.
  • a hash function which produces a 64-bit key may be used.
  • the hash may then be time/date stamped. Time may be obtained using real-time clock 314 of FIG. 3. Date may be obtained using date generator 316 of FIG. 3. Alternatively a time/date stamp may be obtained from a trusted external source.
  • the electronic postmark data structure may be generated comprising the hash value of the merged data and the time/date stamp.
  • the electronic postmark data structure may be generated comprising the hash value of the merged data, the time/date stamp, and a digital signature comprising, for example, a private key.
  • a digital signature may be produced by first performing a secure hash algorithm by using, for example, the Secure Hash Standard FIPS 180-1 on the data to be signed, to produce a secure hash value.
  • the secure hash value may then be processed using a digital signature algorithm (DSA) and a unique private key to produce two data values. These data values may comprise the digital signature, which may then be appended to the hash value and the time/date stamp to form an electronic postmark data structure.
  • DSA digital signature algorithm
  • the generated electronic postmark data structure may be stored in a log.
  • a data entry corresponding to the generated electronic postmark data structure may be stored in the log.
  • the log may be located at EPM server 110 of FIG. 3.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)

Abstract

L'invention concerne des systèmes et des méthodes d'oblitération électronique de données d'emplacement. L'oblitération électronique de données d'emplacement (S.20) consiste à générer une valeur parasite correspondant à des données fusionnées (S.30). L'oblitération électronique consiste également à générer une structure (S.40) de données d'oblitération électronique comprenant la valeur parasite et un indicateur de date/heure. La structure (S.40) de données d'oblitération électronique peut également comprendre une signature numérique.
PCT/US2002/011380 2001-04-12 2002-04-12 Systemes et procedes d'obliteration electronique de donnees, y compris des donnees d'emplacement WO2002084945A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/474,730 US7779481B2 (en) 2001-04-12 2002-04-12 Systems and methods for electronic postmarking of data including location data
US12/830,731 US8417958B2 (en) 2001-04-12 2010-07-06 Systems and methods for electronic postmarking of data including location data

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US28313901P 2001-04-12 2001-04-12
US60/283,139 2001-04-12
USPCT/US01/47720 2001-12-17
PCT/US2001/047720 WO2002049269A1 (fr) 2000-12-15 2001-12-17 Procede permettant d'apposer un cachet postal electronique sans utilisation directe d'un serveur de cachets postaux electroniques

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US10474730 A-371-Of-International 2002-04-12
US12/830,731 Continuation US8417958B2 (en) 2001-04-12 2010-07-06 Systems and methods for electronic postmarking of data including location data

Publications (1)

Publication Number Publication Date
WO2002084945A1 true WO2002084945A1 (fr) 2002-10-24

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5757916A (en) * 1995-10-06 1998-05-26 International Series Research, Inc. Method and apparatus for authenticating the location of remote users of networked computing systems
US5774802A (en) * 1996-04-10 1998-06-30 Motorola Inc. Apparatus and method for billing in a wireless communication system
US5889506A (en) * 1996-10-25 1999-03-30 Matsushita Electric Industrial Co., Ltd. Video user's environment
US6269446B1 (en) * 1998-06-26 2001-07-31 Canon Kabushiki Kaisha Authenticating images from digital cameras
US6370629B1 (en) * 1998-10-29 2002-04-09 Datum, Inc. Controlling access to stored information based on geographical location and date and time

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5757916A (en) * 1995-10-06 1998-05-26 International Series Research, Inc. Method and apparatus for authenticating the location of remote users of networked computing systems
US5774802A (en) * 1996-04-10 1998-06-30 Motorola Inc. Apparatus and method for billing in a wireless communication system
US5889506A (en) * 1996-10-25 1999-03-30 Matsushita Electric Industrial Co., Ltd. Video user's environment
US6269446B1 (en) * 1998-06-26 2001-07-31 Canon Kabushiki Kaisha Authenticating images from digital cameras
US6370629B1 (en) * 1998-10-29 2002-04-09 Datum, Inc. Controlling access to stored information based on geographical location and date and time

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"CASIO and ComROAD co-operate in the opening-up of the telematic consumer market", COMROAD AG, 9 February 2000 (2000-02-09), pages 1 - 5, XP002951275, Retrieved from the Internet <URL:http://www.conroad.com/presse_data/0902.htm> [retrieved on 20020614] *

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