DE60011431D1 - Sichere systeme zum drucken von authentifizierenden digitalen unterschriften - Google Patents

Sichere systeme zum drucken von authentifizierenden digitalen unterschriften

Info

Publication number
DE60011431D1
DE60011431D1 DE60011431T DE60011431T DE60011431D1 DE 60011431 D1 DE60011431 D1 DE 60011431D1 DE 60011431 T DE60011431 T DE 60011431T DE 60011431 T DE60011431 T DE 60011431T DE 60011431 D1 DE60011431 D1 DE 60011431D1
Authority
DE
Germany
Prior art keywords
product indicia
encryption key
indicia
product
code
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.)
Expired - Lifetime
Application number
DE60011431T
Other languages
English (en)
Other versions
DE60011431T2 (de
Inventor
A Doljack
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Assure Systems Inc
Original Assignee
Assure Systems Inc
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 Assure Systems Inc filed Critical Assure Systems Inc
Application granted granted Critical
Publication of DE60011431D1 publication Critical patent/DE60011431D1/de
Publication of DE60011431T2 publication Critical patent/DE60011431T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G06F21/60—Protecting data
    • G06F21/606—Protecting data by securing the transmission between two devices or processes
    • G06F21/608—Secure printing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/38—Payment protocols; Details thereof
    • G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
    • G06Q20/401—Transaction verification
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00016—Relations between apparatus, e.g. franking machine at customer or apparatus at post office, in a franking system
    • G07B17/0008—Communication details outside or between apparatus
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00185—Details internally of apparatus in a franking system, e.g. franking machine at customer or apparatus at post office
    • G07B17/00193—Constructional details of apparatus in a franking system
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00459—Details relating to mailpieces in a franking system
    • G07B17/00508—Printing or attaching on mailpieces
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00733—Cryptography or similar special procedures in a franking system
    • 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
    • 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
    • G06F2221/2107—File encryption
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00016—Relations between apparatus, e.g. franking machine at customer or apparatus at post office, in a franking system
    • G07B17/0008—Communication details outside or between apparatus
    • G07B2017/00145—Communication details outside or between apparatus via the Internet
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00016—Relations between apparatus, e.g. franking machine at customer or apparatus at post office, in a franking system
    • G07B17/0008—Communication details outside or between apparatus
    • G07B2017/00153—Communication details outside or between apparatus for sending information
    • G07B2017/00161—Communication details outside or between apparatus for sending information from a central, non-user location, e.g. for updating rates or software, or for refilling funds
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00185—Details internally of apparatus in a franking system, e.g. franking machine at customer or apparatus at post office
    • G07B17/00193—Constructional details of apparatus in a franking system
    • G07B2017/00201—Open franking system, i.e. the printer is not dedicated to franking only, e.g. PC (Personal Computer)
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00459—Details relating to mailpieces in a franking system
    • G07B17/00508—Printing or attaching on mailpieces
    • G07B2017/00572—Details of printed item
    • G07B2017/0058—Printing of code
    • G07B2017/00588—Barcode
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00733—Cryptography or similar special procedures in a franking system
    • G07B2017/00741—Cryptography or similar special procedures in a franking system using specific cryptographic algorithms or functions
    • G07B2017/00758—Asymmetric, public-key algorithms, e.g. RSA, Elgamal
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B17/00—Franking apparatus
    • G07B17/00733—Cryptography or similar special procedures in a franking system
    • G07B2017/00846—Key management
    • G07B2017/00862—Key storage, e.g. escrowing by trusted third party

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Theoretical Computer Science (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Bioethics (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Storage Device Security (AREA)
  • Credit Cards Or The Like (AREA)
  • Ink Jet (AREA)
  • Paper (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
DE60011431T 1999-06-29 2000-06-22 Sichere systeme zum drucken von authentifizierenden digitalen unterschriften Expired - Lifetime DE60011431T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US342489 1999-06-29
US09/342,489 US6681214B1 (en) 1999-06-29 1999-06-29 Secure system for printing authenticating digital signatures
PCT/US2000/017242 WO2001001355A1 (en) 1999-06-29 2000-06-22 Secure system for printing authenticating digital signatures

Publications (2)

Publication Number Publication Date
DE60011431D1 true DE60011431D1 (de) 2004-07-15
DE60011431T2 DE60011431T2 (de) 2005-07-07

Family

ID=23342050

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60011431T Expired - Lifetime DE60011431T2 (de) 1999-06-29 2000-06-22 Sichere systeme zum drucken von authentifizierenden digitalen unterschriften

Country Status (8)

Country Link
US (1) US6681214B1 (de)
EP (1) EP1196894B1 (de)
AT (1) ATE268925T1 (de)
AU (1) AU5759800A (de)
CA (1) CA2378053A1 (de)
DE (1) DE60011431T2 (de)
ES (1) ES2220482T3 (de)
WO (1) WO2001001355A1 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6442276B1 (en) 1997-07-21 2002-08-27 Assure Systems, Inc. Verification of authenticity of goods by use of random numbers
US20010025343A1 (en) * 2000-03-27 2001-09-27 Roy Chrisop Random bit mask generation for obscuring data on nonvolatile memory device
US7890771B2 (en) * 2002-04-17 2011-02-15 Microsoft Corporation Saving and retrieving data based on public key encryption
US7475260B2 (en) * 2002-05-09 2009-01-06 International Business Machines Corporation Method and apparatus for protecting sensitive information in a log file
US20030225702A1 (en) * 2002-05-31 2003-12-04 Jorge Martin System and method for acquisition, registration, and authentication of works of art and the like
US8438392B2 (en) 2002-06-20 2013-05-07 Krimmeni Technologies, Inc. Method and system for control of code execution on a general purpose computing device and control of code execution in a recursive security protocol
US7203844B1 (en) * 2002-06-20 2007-04-10 Oxford William V Method and system for a recursive security protocol for digital copyright control
WO2004022350A1 (ja) * 2002-08-30 2004-03-18 Seiko Epson Corporation プリンタ及び印刷システム、並びに、データ受信装置及びデータ送受信システム
US6901863B2 (en) * 2002-11-27 2005-06-07 Seiko Epson Corporation Printer and print system for executing a proper print operation only in a place registered in advance
DE10328328B4 (de) * 2003-06-25 2015-06-03 TÜV Rheinland Holding AG Produktschutz-Portal und Verfahren zur Echtheitsprüfung von Produkten
US7506159B2 (en) * 2003-10-23 2009-03-17 Seiko Epson Corporation Printer and print system
US7752137B2 (en) 2003-11-03 2010-07-06 Meyers Printing Company Authentication and tracking system
US8615470B2 (en) * 2003-11-03 2013-12-24 Verify Brand Authentication and tracking system
ITTO20050160A1 (it) * 2005-03-14 2006-09-15 Gaetano Rizzi Sistema di gestione e controllo dati, particolamente per la verifica di articoli dotati di un codice identificativo
US20060235805A1 (en) * 2005-04-13 2006-10-19 Mr. Feng Peng Universal anti-counterfeit method and system
US20070075125A1 (en) * 2005-09-30 2007-04-05 Muscat Robert G Packaging and process of authenticating packaging
US20080022098A1 (en) * 2005-09-30 2008-01-24 Muscat Robert G Authentication process
JP4783112B2 (ja) * 2005-10-11 2011-09-28 株式会社日立製作所 署名履歴保管装置
US8108309B2 (en) * 2007-05-29 2012-01-31 Provalidate Protecting a manufactured item from counterfeiting
US20090037204A1 (en) * 2007-08-03 2009-02-05 Moxie Proxy Method for providing product safety to a manufactured item using a multiple use verification code
US20090080659A1 (en) * 2007-09-21 2009-03-26 Texas Instruments Incorporated Systems and methods for hardware key encryption
US20090212101A1 (en) * 2008-02-21 2009-08-27 Provalidate Method and system for providing product safety to a manufactured item with verification codes
CN104094298A (zh) * 2011-12-05 2014-10-08 药物安全股份有限公司 用于验证和管理产品分销的系统和方法
JP2015511050A (ja) 2012-03-20 2015-04-13 クリメニ テクノロジーズ， インコーポレイテッド プロセス作業セット隔離のための方法およびシステム
US20150248676A1 (en) * 2014-02-28 2015-09-03 Sathish Vaidyanathan Touchless signature
US9852317B2 (en) 2015-07-29 2017-12-26 Palo Alto Research Center Incorporated Printable, writeable article for tracking counterfeit and diverted products
US9646310B2 (en) 2015-07-29 2017-05-09 Palo Alto Research Center Incorporated Printable, writeable article for tracking counterfeit and diverted products
US9652644B2 (en) 2015-07-29 2017-05-16 Palo Alto Research Center Incorporated Printable, writeable article for tracking counterfeit and diverted products
US10822132B2 (en) 2017-02-10 2020-11-03 R.E.D. Stamp, Inc. High speed stamp applicator
WO2018199953A1 (en) * 2017-04-27 2018-11-01 Hewlett-Packard Development Company, L.P. Updating one-time pad of printer using physical document with encoded key material
US11461854B2 (en) 2017-11-03 2022-10-04 Mastercard International Incorporated Systems and methods for using multi-factor authentication for tax filings
CN110011808B (zh) * 2019-03-29 2021-10-15 天逸财金科技服务股份有限公司 具有保护数位签章机制的方法及系统与伺服器

Family Cites Families (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL37456A (en) 1971-08-05 1975-10-15 Elscint Ltd Method and means for numbering and/or ascertaining the authenticity of serially numbered objects
US4558318A (en) 1980-06-23 1985-12-10 Light Signatures, Inc. Merchandise verification and information system
US4463250A (en) 1981-07-11 1984-07-31 Mcneight David L Method and apparatus for use against counterfeiting
US5367148A (en) 1986-04-18 1994-11-22 Cias, Inc. Counterfeit detection using ID numbers with at least one random portion
DE3751047T2 (de) 1986-11-05 1995-08-10 Ibm Softwareschutzsystem einschliesslich eines Einschlüsselkryptosystems, eines auf Hardware beruhenden Genehmigungssystems und eines geschützten Zusatzprozessors.
US4938591A (en) 1987-05-15 1990-07-03 Large Scale Biology Corporation Method and apparatus for electronic and visual image comparing
US5140634A (en) 1987-09-07 1992-08-18 U.S Philips Corporation Method and apparatus for authenticating accreditations and for authenticating and signing messages
US4879747A (en) 1988-03-21 1989-11-07 Leighton Frank T Method and system for personal identification
US4889365A (en) 1988-04-11 1989-12-26 The Label Printers Counterfeit resistant label and method of making the same
US4949381A (en) 1988-09-19 1990-08-14 Pitney Bowes Inc. Electronic indicia in bit-mapped form
EP0383985A1 (de) 1989-02-24 1990-08-29 Claus Peter Prof. Dr. Schnorr Verfahren zur Identifikation von Teilnehmern sowie zur Generierung und Verifikation von elektronischen Unterschriften in einem Datenaustauschsystem
US5164988A (en) 1991-10-31 1992-11-17 International Business Machines Corporation Method to establish and enforce a network cryptographic security policy in a public key cryptosystem
AU1895992A (en) 1992-05-06 1993-11-29 Cias, Inc. Counterfeit detection using random number field IDs
US5521984A (en) 1993-06-10 1996-05-28 Verification Technologies, Inc. System for registration, identification and verification of items utilizing unique intrinsic features
US5422954A (en) 1993-11-04 1995-06-06 Pitney Bowes Inc. Apparatus and method of producing a self printed inspection label
US5822436A (en) 1996-04-25 1998-10-13 Digimarc Corporation Photographic products and methods employing embedded information
US5481610A (en) 1994-02-28 1996-01-02 Ericsson Inc. Digital radio transceiver with encrypted key storage
GB2288476A (en) * 1994-04-05 1995-10-18 Ibm Authentication of printed documents.
US5592561A (en) 1994-04-14 1997-01-07 Moore; Lewis J. Anti-counterfeiting system
US5598477A (en) 1994-11-22 1997-01-28 Pitney Bowes Inc. Apparatus and method for issuing and validating tickets
DE69521977T2 (de) * 1994-12-13 2002-04-04 Ibm Verfahren und System zur gesicherten Programmenverteilung
US6397194B1 (en) 1995-05-08 2002-05-28 Image Data, Llc Receipt scanning system and method
US5540153A (en) * 1995-06-13 1996-07-30 Philip Morris Incorporated Embosser and method using slot mounted die and impression pad
NO302388B1 (no) * 1995-07-13 1998-02-23 Sigurd Sigbjoernsen Fremgangsmåte og anordning for å beskytte programvare mot bruk uten tillatelse
JPH0950465A (ja) 1995-08-04 1997-02-18 Hitachi Ltd 電子ショッピング方法、電子ショッピングシステムおよび文書認証方法
US5721781A (en) 1995-09-13 1998-02-24 Microsoft Corporation Authentication system and method for smart card transactions
US6073114A (en) 1995-11-22 2000-06-06 Talent Technology, Inc. Method for tracking timber
US5835689A (en) 1995-12-19 1998-11-10 Pitney Bowes Inc. Transaction evidencing system and method including post printing and batch processing
US5850442A (en) 1996-03-26 1998-12-15 Entegrity Solutions Corporation Secure world wide electronic commerce over an open network
US5768384A (en) 1996-03-28 1998-06-16 Pitney Bowes Inc. System for identifying authenticating and tracking manufactured articles
IL117952A0 (en) 1996-04-18 1996-08-04 Eldat Communication Ltd Product identification and counting system
US5771392A (en) * 1996-06-20 1998-06-23 Mathsoft, Inc. Encoding method to enable vectors and matrices to be elements of vectors and matrices
US5892441A (en) 1996-06-26 1999-04-06 Par Government Systems Corporation Sensing with active electronic tags
NO304049B1 (no) 1996-07-18 1998-10-12 Rnsen Sigurd Sigbj FremgangsmÕte og anordning for Õ hindre utvalgte opplysninger i en database fra Õ bli utnyttet uten tillatelse, samt fremgangsmÕte og anordning for Õ gj°re det mulig Õ utnytte innhold i en database bare sammen med en tilh°rende tillatelse
US5801856A (en) 1996-07-24 1998-09-01 Eastman Kodak Company Secure photographic systems
US5822739A (en) * 1996-10-02 1998-10-13 E-Stamp Corporation System and method for remote postage metering
US5818021A (en) 1996-12-03 1998-10-06 Szewczykowski; Jerzy Method for identifying counterfeit negotiable instruments
US5845070A (en) 1996-12-18 1998-12-01 Auric Web Systems, Inc. Security system for internet provider transaction
US5903721A (en) 1997-03-13 1999-05-11 cha|Technologies Services, Inc. Method and system for secure online transaction processing
US6078888A (en) 1997-07-16 2000-06-20 Gilbarco Inc. Cryptography security for remote dispenser transactions
US6442276B1 (en) 1997-07-21 2002-08-27 Assure Systems, Inc. Verification of authenticity of goods by use of random numbers
US6247047B1 (en) 1997-11-18 2001-06-12 Control Commerce, Llc Method and apparatus for facilitating computer network transactions
US6212638B1 (en) 1997-12-02 2001-04-03 George C. Lee Method for generating unpredictable authentication identification symbols
US5971435A (en) 1997-12-10 1999-10-26 Dicesare; Robert D. Method and system for verifying the authenticity of an autograph
US6069955A (en) 1998-04-14 2000-05-30 International Business Machines Corporation System for protection of goods against counterfeiting
US6226619B1 (en) 1998-10-29 2001-05-01 International Business Machines Corporation Method and system for preventing counterfeiting of high price wholesale and retail items
US6188997B1 (en) * 1999-04-19 2001-02-13 Pitney Bowes Inc. Postage metering system having currency synchronization
US6286761B1 (en) 1999-12-03 2001-09-11 Eastman Kodak Company Identification document having embedding information related to the subject

Also Published As

Publication number Publication date
US6681214B1 (en) 2004-01-20
DE60011431T2 (de) 2005-07-07
CA2378053A1 (en) 2001-01-04
EP1196894B1 (de) 2004-06-09
WO2001001355A1 (en) 2001-01-04
ES2220482T3 (es) 2004-12-16
ATE268925T1 (de) 2004-06-15
AU5759800A (en) 2001-01-31
EP1196894A1 (de) 2002-04-17

Similar Documents

Publication Publication Date Title
DE60011431D1 (de) Sichere systeme zum drucken von authentifizierenden digitalen unterschriften
ATE522877T1 (de) Verschlüsselungsdateisystem und verfahren
NO985275D0 (no) FremgangsmÕte for lagring og anvendelse av sensitiv informasjon i en sikkerhetsmodul, og en tilknyttet sikkerhetsmodul
CN103618607B (zh) 一种数据安全传输和密钥交换方法
ATE301370T1 (de) Sichere verteilung von digitalen darstellungen
WO2000074297A3 (en) Method and apparatus for secure distribution of public/private key pairs
SG143962A1 (en) Validating an authentication chip using a secret key
KR960703248A (ko) 데이터 보호 시스템(data protection system)
DE69331006D1 (de) Geheimübertragungsverfahren und -system
ATE309604T1 (de) Verfahren und system zur bereitstellung von busverschlüsselung basierend auf einem kryptographischen schlüsselaustausch
DE60120117D1 (de) Vorrichtung und protokoll zum authentifizieren eines verbrauchsgegenstandes
AU2002212345A1 (en) Method and system for web-based cross-domain single-sign-on authentication
RU2008147396A (ru) Улучшенный доступ к домену
WO2007001328A3 (en) Information-centric security
PT885417E (pt) Sistema de controlo/criptografia de acesso
JP2004259262A5 (de)
WO2002005475A3 (en) Generation and use of digital signatures
JP2000115154A5 (ja) データ処理装置および方法、並びにデータ復号処理装置および方法
EP0912011A3 (de) Verfahren und Vorrichtung zur Verschlüsselung und zur Rückgewinnung von Schlüseln
EP1248248A4 (de) Rekorder
WO2005057352A3 (en) Secure digital content trading systems and methods
EP1054314A3 (de) Informationsverarbeitungsvorrichtung, Informationsverarbeitungverfahren und Darstellungsmedium
CN106789046B (zh) 一种自生成密钥对的实现方法
KR970056124A (ko) 차동 워크팩터 암호방법 및 시스템
CN101795194B (zh) 一种智能卡多数字证书保护方法

Legal Events

Date Code Title Description
8364 No opposition during term of opposition