DE69620904D1 - Auf einer baumstruktur basierende einrichtung zum widerrufen von zertifikaten - Google Patents

Auf einer baumstruktur basierende einrichtung zum widerrufen von zertifikaten

Info

Publication number
DE69620904D1
DE69620904D1 DE69620904T DE69620904T DE69620904D1 DE 69620904 D1 DE69620904 D1 DE 69620904D1 DE 69620904 T DE69620904 T DE 69620904T DE 69620904 T DE69620904 T DE 69620904T DE 69620904 D1 DE69620904 D1 DE 69620904D1
Authority
DE
Germany
Prior art keywords
certificates
withdraw
device based
tree structure
crl
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
DE69620904T
Other languages
English (en)
Inventor
Silvio Micali
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE69620904D1 publication Critical patent/DE69620904D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04L9/3263—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 certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
    • H04L9/3268—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 certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements using certificate validation, registration, distribution or revocation, e.g. certificate revocation list [CRL]
    • 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
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/33—User authentication using certificates
    • 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
    • G06Q20/02—Payment architectures, schemes or protocols involving a neutral party, e.g. certification authority, notary or trusted third party [TTP]
    • 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
    • H04L9/3236—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 using cryptographic hash functions
    • 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
    • H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
    • 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
    • G06F2221/2145—Inheriting rights or properties, e.g., propagation of permissions or restrictions within a hierarchy
    • 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
    • H04L2209/30—Compression, e.g. Merkle-Damgard construction

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Accounting & Taxation (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Storage Device Security (AREA)
  • Revetment (AREA)
  • Mushroom Cultivation (AREA)
  • Hydroponics (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Catching Or Destruction (AREA)
DE69620904T 1995-11-02 1996-11-01 Auf einer baumstruktur basierende einrichtung zum widerrufen von zertifikaten Expired - Lifetime DE69620904D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US614395P 1995-11-02 1995-11-02
US08/729,619 US6097811A (en) 1995-11-02 1996-10-11 Tree-based certificate revocation system
PCT/US1996/017374 WO1997016905A1 (en) 1995-11-02 1996-11-01 Tree-based certificate revocation system

Publications (1)

Publication Number Publication Date
DE69620904D1 true DE69620904D1 (de) 2002-05-29

Family

ID=26675240

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69620904T Expired - Lifetime DE69620904D1 (de) 1995-11-02 1996-11-01 Auf einer baumstruktur basierende einrichtung zum widerrufen von zertifikaten
DE69636893T Expired - Lifetime DE69636893D1 (de) 1995-11-02 1996-11-01 Auf einer Baumstruktur basierende Einrichtung zum Widerrufen von Zertifikaten

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69636893T Expired - Lifetime DE69636893D1 (de) 1995-11-02 1996-11-01 Auf einer Baumstruktur basierende Einrichtung zum Widerrufen von Zertifikaten

Country Status (6)

Country Link
US (1) US6097811A (de)
EP (1) EP0858702B1 (de)
AT (2) ATE353506T1 (de)
AU (1) AU7526996A (de)
DE (2) DE69620904D1 (de)
WO (1) WO1997016905A1 (de)

Families Citing this family (102)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7600129B2 (en) 1995-10-02 2009-10-06 Corestreet, Ltd. Controlling access using additional data
US6487658B1 (en) 1995-10-02 2002-11-26 Corestreet Security, Ltd. Efficient certificate revocation
US7822989B2 (en) 1995-10-02 2010-10-26 Corestreet, Ltd. Controlling access to an area
US7353396B2 (en) 1995-10-02 2008-04-01 Corestreet, Ltd. Physical access control
US6766450B2 (en) * 1995-10-24 2004-07-20 Corestreet, Ltd. Certificate revocation system
US7716486B2 (en) * 1995-10-02 2010-05-11 Corestreet, Ltd. Controlling group access to doors
US7337315B2 (en) 1995-10-02 2008-02-26 Corestreet, Ltd. Efficient certificate revocation
US8015597B2 (en) 1995-10-02 2011-09-06 Corestreet, Ltd. Disseminating additional data used for controlling access
US8732457B2 (en) * 1995-10-02 2014-05-20 Assa Abloy Ab Scalable certificate validation and simplified PKI management
US8261319B2 (en) 1995-10-24 2012-09-04 Corestreet, Ltd. Logging access attempts to an area
US6901509B1 (en) 1996-05-14 2005-05-31 Tumbleweed Communications Corp. Apparatus and method for demonstrating and confirming the status of a digital certificates and other data
US5903651A (en) * 1996-05-14 1999-05-11 Valicert, Inc. Apparatus and method for demonstrating and confirming the status of a digital certificates and other data
AU5458199A (en) * 1998-07-02 2000-01-24 Cryptography Research, Inc. Leak-resistant cryptographic indexed key update
US6230266B1 (en) * 1999-02-03 2001-05-08 Sun Microsystems, Inc. Authentication system and process
US6735313B1 (en) * 1999-05-07 2004-05-11 Lucent Technologies Inc. Cryptographic method and apparatus for restricting access to transmitted programming content using hash functions and program identifiers
US7461250B1 (en) * 1999-07-22 2008-12-02 Rsa Security, Inc. System and method for certificate exchange
WO2001011843A1 (en) * 1999-08-06 2001-02-15 Sudia Frank W Blocked tree authorization and status systems
EP1143658A1 (de) * 2000-04-03 2001-10-10 Canal+ Technologies Société Anonyme Authentifizierung von in einem digitalen Übertragungssystem übertragenen Daten
JP2001308841A (ja) * 2000-04-21 2001-11-02 Sony Corp 送信装置および送信方法、受信装置および受信方法、ならびに、送受信システムおよび送受信方法
US6950933B1 (en) * 2000-05-19 2005-09-27 Networks Associates Technology, Inc. Method and system for management and notification of electronic certificate changes
US20040073617A1 (en) 2000-06-19 2004-04-15 Milliken Walter Clark Hash-based systems and methods for detecting and preventing transmission of unwanted e-mail
US7085929B1 (en) 2000-10-11 2006-08-01 Koninklijke Philips Electronics N.V. Method and apparatus for revocation list management using a contact list having a contact count field
US20020116611A1 (en) * 2000-10-31 2002-08-22 Cornell Research Foundation, Inc. Secure distributed on-line certification authority
US20020073310A1 (en) * 2000-12-11 2002-06-13 Ibm Corporation Method and system for a secure binding of a revoked X.509 certificate to its corresponding certificate revocation list
US7404080B2 (en) 2001-04-16 2008-07-22 Bjorn Markus Jakobsson Methods and apparatus for efficient computation of one-way chains in cryptographic applications
JP2005520364A (ja) * 2001-07-09 2005-07-07 リナックスプローブ株式会社 デジタル署名された証明書を更新しかつ拡張するシステムおよび方法
MXPA04000999A (es) * 2001-08-01 2004-04-20 Matsushita Electric Ind Co Ltd Sistema de comunicacion con encriptacion.
US7299351B2 (en) * 2001-09-19 2007-11-20 Microsoft Corporation Peer-to-peer name resolution protocol (PNRP) security infrastructure and method
US7493363B2 (en) 2001-09-19 2009-02-17 Microsoft Corporation Peer-to-peer group management and method for maintaining peer-to-peer graphs
US7120793B2 (en) 2001-09-28 2006-10-10 Globalcerts, Lc System and method for electronic certificate revocation
US7007040B1 (en) 2001-12-04 2006-02-28 General Dynamics C4 Systems, Inc. Method and apparatus for storing and updating information in a multi-cast system
JP2005530397A (ja) * 2002-06-17 2005-10-06 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 装置間の認証方法
GB2394803A (en) * 2002-10-31 2004-05-05 Hewlett Packard Co Management of security key distribution using an ancestral hierarchy
US7451310B2 (en) * 2002-12-02 2008-11-11 International Business Machines Corporation Parallelizable authentication tree for random access storage
US7613812B2 (en) 2002-12-04 2009-11-03 Microsoft Corporation Peer-to-peer identity management interfaces and methods
WO2004068293A2 (en) * 2003-01-25 2004-08-12 Peppercoin, Inc. Micropayment processing method and system
US7596625B2 (en) 2003-01-27 2009-09-29 Microsoft Corporation Peer-to-peer grouping interfaces and methods
EP1627488A4 (de) 2003-05-13 2008-06-04 Corestreet Ltd Effiziente und sichere datenaktualitätssysteme
AU2004251364B9 (en) * 2003-06-24 2010-09-23 Assa Abloy Ab Access control
JP4460251B2 (ja) * 2003-09-19 2010-05-12 株式会社エヌ・ティ・ティ・ドコモ 構造化文書署名装置、構造化文書適応化装置及び構造化文書検証装置。
EP1668617B1 (de) * 2003-09-19 2009-12-09 NTT DoCoMo, Inc. Verfahren und vorrichtung zur effizienten zertifikatwiderrufung
US7949996B2 (en) 2003-10-23 2011-05-24 Microsoft Corporation Peer-to-peer identity management managed interfaces and methods
US7454521B2 (en) * 2003-10-23 2008-11-18 Microsoft Corporation Byzantine fault quantifying clock synchronization
US7496648B2 (en) 2003-10-23 2009-02-24 Microsoft Corporation Managed peer name resolution protocol (PNRP) interfaces for peer to peer networking
WO2005052752A2 (en) 2003-11-19 2005-06-09 Corestreet, Ltd. Distributed delegated path discovery and validation
US7698557B2 (en) * 2003-12-22 2010-04-13 Guardtime As System and method for generating a digital certificate
WO2005070116A2 (en) 2004-01-09 2005-08-04 Corestreet, Ltd. Communication-efficient real time credentials for ocsp and distributed ocsp
CA2559782A1 (en) * 2004-03-17 2005-09-29 Koninklijke Philips Electronics N.V. Method of and device for generating authorization status list
US8688803B2 (en) * 2004-03-26 2014-04-01 Microsoft Corporation Method for efficient content distribution using a peer-to-peer networking infrastructure
EP1843515A3 (de) * 2004-08-31 2011-08-03 NTT DoCoMo, Inc. Multicasting und Zwischenspeicherung
JP4794560B2 (ja) * 2004-08-31 2011-10-19 株式会社エヌ・ティ・ティ・ドコモ 暗号デジタル証明書の失効
US20060097992A1 (en) * 2004-10-25 2006-05-11 Motorola, Inc. Apparatus and method of determining a user selection in a user interface
US7205882B2 (en) * 2004-11-10 2007-04-17 Corestreet, Ltd. Actuating a security system using a wireless device
US7266692B2 (en) 2004-12-17 2007-09-04 Ntt Docomo, Inc. Use of modular roots to perform authentication including, but not limited to, authentication of validity of digital certificates
US7315941B2 (en) 2004-12-17 2008-01-01 Ntt Docomo Inc. Multi-certificate revocation using encrypted proof data for proving certificate's validity or invalidity
JP4897701B2 (ja) * 2004-12-22 2012-03-14 サーティコム コーポレーション 部分リボケーション・リスト
WO2006085647A1 (ja) * 2005-02-14 2006-08-17 Matsushita Electric Industrial Co., Ltd. アプリケーション実行装置、管理方法、プログラム
US7571228B2 (en) 2005-04-22 2009-08-04 Microsoft Corporation Contact management in a serverless peer-to-peer system
US8036140B2 (en) 2005-04-22 2011-10-11 Microsoft Corporation Application programming interface for inviting participants in a serverless peer to peer network
US20060294366A1 (en) * 2005-06-23 2006-12-28 International Business Machines Corp. Method and system for establishing a secure connection based on an attribute certificate having user credentials
US7565358B2 (en) * 2005-08-08 2009-07-21 Google Inc. Agent rank
US8874477B2 (en) 2005-10-04 2014-10-28 Steven Mark Hoffberg Multifactorial optimization system and method
WO2007045051A1 (en) 2005-10-21 2007-04-26 Honeywell Limited An authorisation system and a method of authorisation
US20070150744A1 (en) * 2005-12-22 2007-06-28 Cheng Siu L Dual authentications utilizing secure token chains
US8166532B2 (en) * 2006-10-10 2012-04-24 Honeywell International Inc. Decentralized access control framework
US20080172723A1 (en) * 2007-01-16 2008-07-17 Dominic Pesapane System and method of collecting data in an access control system
US9286481B2 (en) * 2007-01-18 2016-03-15 Honeywell International Inc. System and method for secure and distributed physical access control using smart cards
US8521650B2 (en) 2007-02-26 2013-08-27 Zepfrog Corp. Method and service for providing access to premium content and dispersing payment therefore
US20080244263A1 (en) * 2007-03-29 2008-10-02 Tc Trust Center, Gmbh Certificate management system
US8351350B2 (en) 2007-05-28 2013-01-08 Honeywell International Inc. Systems and methods for configuring access control devices
WO2008144804A1 (en) 2007-05-28 2008-12-04 Honeywell International Inc Systems and methods for commissioning access control devices
JP2009182864A (ja) * 2008-01-31 2009-08-13 Hitachi Kokusai Electric Inc 署名装置、検証装置、プログラム、署名方法、検証方法及びシステム
WO2010039598A2 (en) 2008-09-30 2010-04-08 Honeywell International Inc. Systems and methods for interacting with access control devices
US8878931B2 (en) 2009-03-04 2014-11-04 Honeywell International Inc. Systems and methods for managing video data
EP2408984B1 (de) 2009-03-19 2019-11-27 Honeywell International Inc. Systeme und verfahren zur verwaltung von zugangssteuerungsvorrichtungen
US8260742B2 (en) * 2009-04-03 2012-09-04 International Business Machines Corporation Data synchronization and consistency across distributed repositories
US9280365B2 (en) 2009-12-17 2016-03-08 Honeywell International Inc. Systems and methods for managing configuration data at disconnected remote devices
US8707414B2 (en) 2010-01-07 2014-04-22 Honeywell International Inc. Systems and methods for location aware access control management
US20120005173A1 (en) * 2010-06-30 2012-01-05 International Business Machines Corporation Determining equivalence of large state repositories utilizing the composition of an injective function and a cryptographic hash function
US8787725B2 (en) 2010-11-11 2014-07-22 Honeywell International Inc. Systems and methods for managing video data
US8706701B1 (en) * 2010-11-18 2014-04-22 Emc Corporation Scalable cloud file system with efficient integrity checks
US9894261B2 (en) 2011-06-24 2018-02-13 Honeywell International Inc. Systems and methods for presenting digital video management system information via a user-customizable hierarchical tree interface
US10362273B2 (en) 2011-08-05 2019-07-23 Honeywell International Inc. Systems and methods for managing video data
WO2013020165A2 (en) 2011-08-05 2013-02-14 HONEYWELL INTERNATIONAL INC. Attn: Patent Services Systems and methods for managing video data
US9344684B2 (en) 2011-08-05 2016-05-17 Honeywell International Inc. Systems and methods configured to enable content sharing between client terminals of a digital video management system
US10523903B2 (en) 2013-10-30 2019-12-31 Honeywell International Inc. Computer implemented systems frameworks and methods configured for enabling review of incident data
RS61234B1 (sr) * 2013-11-19 2021-01-29 Top Galore Ltd Postupak i uređaj za rudarenje blokova
CN104901931B (zh) 2014-03-05 2018-10-12 财团法人工业技术研究院 证书管理方法与装置
US10862690B2 (en) 2014-09-30 2020-12-08 Telefonaktiebolaget Lm Ericsson (Publ) Technique for handling data in a data network
US10333696B2 (en) 2015-01-12 2019-06-25 X-Prime, Inc. Systems and methods for implementing an efficient, scalable homomorphic transformation of encrypted data with minimal data expansion and improved processing efficiency
EP3259871B1 (de) 2015-02-20 2020-09-16 Telefonaktiebolaget LM Ericsson (publ) Verfahren zur bereitstellung eines hash-wertes für einen datenblock, elektronische vorrichtung und computerprogramm
EP3259873B1 (de) 2015-02-20 2018-12-12 Telefonaktiebolaget LM Ericsson (publ) Verfahren zur bereitstellung eines hash-wertes für einen datenblock, elektronische vorrichtung und computerprogramm
US10043039B2 (en) * 2015-04-10 2018-08-07 Telefonaktiebolaget Lm Ericsson (Publ) Verification paths of leaves of a tree
US10153905B2 (en) 2015-12-04 2018-12-11 Verisign, Inc. Hash-based electronic signatures for data sets such as DNSSEC
US11025407B2 (en) 2015-12-04 2021-06-01 Verisign, Inc. Hash-based digital signatures for hierarchical internet public key infrastructure
US9645604B1 (en) 2016-01-05 2017-05-09 Bitfury Group Limited Circuits and techniques for mesochronous processing
US9514264B1 (en) 2016-01-05 2016-12-06 Bitfury Group Limited Layouts of transmission gates and related systems and techniques
US9660627B1 (en) 2016-01-05 2017-05-23 Bitfury Group Limited System and techniques for repeating differential signals
US10425417B2 (en) 2017-03-08 2019-09-24 Bank Of America Corporation Certificate system for verifying authorized and unauthorized secure sessions
US10374808B2 (en) 2017-03-08 2019-08-06 Bank Of America Corporation Verification system for creating a secure link
US10361852B2 (en) 2017-03-08 2019-07-23 Bank Of America Corporation Secure verification system
US10432595B2 (en) 2017-03-08 2019-10-01 Bank Of America Corporation Secure session creation system utililizing multiple keys

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US34954A (en) * 1862-04-15 Cord-windek
US4200770A (en) * 1977-09-06 1980-04-29 Stanford University Cryptographic apparatus and method
US4218582A (en) * 1977-10-06 1980-08-19 The Board Of Trustees Of The Leland Stanford Junior University Public key cryptographic apparatus and method
US4309569A (en) * 1979-09-05 1982-01-05 The Board Of Trustees Of The Leland Stanford Junior University Method of providing digital signatures
US4326098A (en) * 1980-07-02 1982-04-20 International Business Machines Corporation High security system for electronic signature verification
US4926480A (en) * 1983-08-22 1990-05-15 David Chaum Card-computer moderated systems
US4943707A (en) * 1987-01-06 1990-07-24 Visa International Service Association Transaction approval system
US4881264A (en) * 1987-07-30 1989-11-14 Merkle Ralph C Digital signature system and method based on a conventional encryption function
US5016274A (en) * 1988-11-08 1991-05-14 Silvio Micali On-line/off-line digital signing
US5003597A (en) * 1989-12-21 1991-03-26 Xerox Corporation Method and apparatus for data encryption
US5136647A (en) * 1990-08-02 1992-08-04 Bell Communications Research, Inc. Method for secure time-stamping of digital documents
US5136646A (en) * 1991-03-08 1992-08-04 Bell Communications Research, Inc. Digital document time-stamping with catenate certificate
US5315657A (en) * 1990-09-28 1994-05-24 Digital Equipment Corporation Compound principals in access control lists
US5396624A (en) * 1990-12-20 1995-03-07 Visa International Service Association Account file for off-line transaction authorization
US5340969A (en) * 1991-10-01 1994-08-23 Dresser Industries, Inc. Method and apparatus for approving transaction card based transactions
US5157726A (en) * 1991-12-19 1992-10-20 Xerox Corporation Document copy authentication
US5261002A (en) * 1992-03-13 1993-11-09 Digital Equipment Corporation Method of issuance and revocation of certificates of authenticity used in public key networks and other systems
US5231666A (en) * 1992-04-20 1993-07-27 International Business Machines Corporation Cryptographic method for updating financial records
JP2583010B2 (ja) * 1993-01-07 1997-02-19 インターナショナル・ビジネス・マシーンズ・コーポレイション 多層インデックス構造におけるローカルインデックステーブル及び大域インデックステーブルの間の一貫性を維持する方法
US5432852A (en) * 1993-09-29 1995-07-11 Leighton; Frank T. Large provably fast and secure digital signature schemes based on secure hash functions
US5497422A (en) * 1993-09-30 1996-03-05 Apple Computer, Inc. Message protection mechanism and graphical user interface therefor
US5450493A (en) * 1993-12-29 1995-09-12 At&T Corp. Secure communication method and apparatus
US5434919A (en) * 1994-01-11 1995-07-18 Chaum; David Compact endorsement signature systems
US5537475A (en) * 1994-02-01 1996-07-16 Micali; Silvio Efficient digital signature algorithm and use thereof technical field
US5420927B1 (en) * 1994-02-01 1997-02-04 Silvio Micali Method for certifying public keys in a digital signature scheme
US5544322A (en) * 1994-05-09 1996-08-06 International Business Machines Corporation System and method for policy-based inter-realm authentication within a distributed processing system
CA2194475A1 (en) * 1994-07-19 1996-02-01 Frank W. Sudia Method for securely using digital signatures in a commercial cryptographic system
US5606617A (en) * 1994-10-14 1997-02-25 Brands; Stefanus A. Secret-key certificates
US5748738A (en) * 1995-01-17 1998-05-05 Document Authentication Systems, Inc. System and method for electronic transmission, storage and retrieval of authenticated documents
US5615268A (en) * 1995-01-17 1997-03-25 Document Authentication Systems, Inc. System and method for electronic transmission storage and retrieval of authenticated documents
US5677955A (en) * 1995-04-07 1997-10-14 Financial Services Technology Consortium Electronic funds transfer instruments
US5604804A (en) * 1996-04-23 1997-02-18 Micali; Silvio Method for certifying public keys in a digital signature scheme
US5717757A (en) * 1996-08-29 1998-02-10 Micali; Silvio Certificate issue lists
US5717758A (en) * 1995-11-02 1998-02-10 Micall; Silvio Witness-based certificate revocation system
US5687235A (en) * 1995-10-26 1997-11-11 Novell, Inc. Certificate revocation performance optimization
US5699431A (en) * 1995-11-13 1997-12-16 Northern Telecom Limited Method for efficient management of certificate revocation lists and update information
US5774552A (en) * 1995-12-13 1998-06-30 Ncr Corporation Method and apparatus for retrieving X.509 certificates from an X.500 directory
US5826262A (en) * 1996-03-22 1998-10-20 International Business Machines Corporation Parallel bottom-up construction of radix trees
US5610982A (en) * 1996-05-15 1997-03-11 Micali; Silvio Compact certification with threshold signatures

Also Published As

Publication number Publication date
ATE353506T1 (de) 2007-02-15
EP0858702B1 (de) 2002-04-24
US6097811A (en) 2000-08-01
ATE216820T1 (de) 2002-05-15
DE69636893D1 (de) 2007-03-22
EP0858702A1 (de) 1998-08-19
WO1997016905A1 (en) 1997-05-09
AU7526996A (en) 1997-05-22

Similar Documents

Publication Publication Date Title
DE69620904D1 (de) Auf einer baumstruktur basierende einrichtung zum widerrufen von zertifikaten
ATE370571T1 (de) System und verfahren zur erzeugung eines gesicherten netzes unter verwendung von beglaubigungen von verfahrensgruppen
DE69420604D1 (de) Vorrichtung zur Herstellung von Wasserstoff
DE68918855T2 (de) Hierarchisches Schlüsselverteilungssystem.
CA2220469A1 (en) Failure restoration system suitable for a large-scale network
DE29702162U1 (de) Vorrichtung zum Bearbeiten von Fahrbahnen, sowie Vorrichtung zum Erzeugen von Schaumbitumen
DE69809189T2 (de) Verfahren und vorrichtung mit digitalen beglaubigungen und anderen elektronischen zertifikaten für elektronische transaktionen
DE69432482D1 (de) Verfahren zur schlusselverteilung unter verwendung von quanten-kryptographie
DE69924682D1 (de) Vorrichtung zur Herstellung von Wasserstoff
ATE209366T1 (de) Elektrochrome oder photoelektrochrome vorrichtung
DE69415815T2 (de) System und verfahren zur schlüsselverteilung unter verwendung von quanten-kryptographie
DE60140041D1 (de) Verfahren und vorrichtung zur informationsverarbeitung
DE69737097D1 (de) Kryptographisches verfahren und vorrichtung mit öffentlichem schlüssel
DE69634220D1 (de) System zur kryptographischen Schlüsselverwaltung und Echtheitsprüfung
DE69525369D1 (de) Kontinuierliches polymerisationverfahren von polyamiden
DE59610282D1 (de) Verfahren zum rechnergestützten austausch kryptographischer schlüssel zwischen einer ersten computereinheit und einer zweiten computereinheit
DE59808393D1 (de) Verfahren zur herstellung von linearen organopolysiloxanen mit alpha-omega-endständigen si-gebundenen alkenylgruppen- oder alpha, omega-endständigen si-gebundenen wasserstoffatomen
DE60207289D1 (de) Verfahren und vorrichtung zur symmetrischen schlüsselerzeugung in einer persönlichen sicherheitsvorrichtung mit begrenzten vertrauensbeziehungen
PT1000138E (pt) Microemulsoes aquosas
EP1162780A3 (de) Vorrichtung und Verfahren zum Querauthentifizieren eines Verzeichnisses in einer Infrastruktur mit öffentlichen Schlüsseln
BR9806810A (pt) Métodos para produção de uma estrutura laminada para uso em um filamento ou fita de segurança e para produção de um substrato de segurança para uso em um documento de segurança filamento ou fita de segurança, e, nota de banco.
ATE456103T1 (de) Verfahren zum senden und empfangen von sicheren daten unter verwendung eines verteilten schlüssels
TR27866A (tr) Alken polimerleri üretmeye mahsus yöntem.
WO2002005484A3 (en) Systems and methods for pki-enabling applications using application-specific certificates
DE3870558D1 (de) Verfahren zur erzeugung und verteilung von geheimschluesseln.

Legal Events

Date Code Title Description
8332 No legal effect for de