WO1997046983A3 - Verfahren und vorrichtung zum laden von inputdaten in einen algorithmus bei der authentikation - Google Patents

Verfahren und vorrichtung zum laden von inputdaten in einen algorithmus bei der authentikation Download PDF

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Publication number
WO1997046983A3
WO1997046983A3 PCT/EP1997/002894 EP9702894W WO9746983A3 WO 1997046983 A3 WO1997046983 A3 WO 1997046983A3 EP 9702894 W EP9702894 W EP 9702894W WO 9746983 A3 WO9746983 A3 WO 9746983A3
Authority
WO
WIPO (PCT)
Prior art keywords
input data
during authentication
algorithm during
loading input
data
Prior art date
Application number
PCT/EP1997/002894
Other languages
English (en)
French (fr)
Other versions
WO1997046983A2 (de
Inventor
Frank Schaefer-Lorinser
Alfred Scheerhorn
Original Assignee
Deutsche Telekom Ag
Schaefer Lorinser Frank
Alfred Scheerhorn
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 Deutsche Telekom Ag, Schaefer Lorinser Frank, Alfred Scheerhorn filed Critical Deutsche Telekom Ag
Priority to AT97925042T priority Critical patent/ATE207643T1/de
Priority to JP10500229A priority patent/JP2000512043A/ja
Priority to DE59705095T priority patent/DE59705095D1/de
Priority to CA002244126A priority patent/CA2244126C/en
Priority to AU30321/97A priority patent/AU3032197A/en
Priority to EP97925042A priority patent/EP0909434B1/de
Publication of WO1997046983A2 publication Critical patent/WO1997046983A2/de
Priority to US09/202,024 priority patent/US7113592B1/en
Publication of WO1997046983A3 publication Critical patent/WO1997046983A3/de

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
    • G07F7/1008—Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system
    • 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]
    • G06Q20/027—Payment architectures, schemes or protocols involving a neutral party, e.g. certification authority, notary or trusted third party [TTP] involving a payment switch or gateway
    • 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
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G06Q20/341—Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
    • 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
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/36—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes
    • G06Q20/367—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes involving electronic purses or money safes
    • G06Q20/3676—Balancing accounts
    • 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
    • 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
    • G06Q20/409—Device specific authentication in transaction processing
    • G06Q20/4097—Device specific authentication in transaction processing using mutual authentication between devices and transaction partners
    • G06Q20/40975—Device specific authentication in transaction processing using mutual authentication between devices and transaction partners using encryption therefor
    • 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
    • G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/0866—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by active credit-cards adapted therefor
    • 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
    • H04L9/3242—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 involving keyed hash functions, e.g. message authentication codes [MACs], CBC-MAC or HMAC
    • 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
    • H04L9/3271—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 challenge-response
    • 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
    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash

Abstract

Die Problematik der Datensicherheit beim Zahlungsverkehr mit Hilfe von Chipkarten liegt in den Vorgängen beim Laden von Inputdaten in einen Algorithmus bei der Authentikation begründet. Mit Hilfe einer Aufteilung der Datenblöcke und der Ein- und Ausschaltung einer zusätzlichen Rückkopplung nach den nachgeschalteten Zählern zu vorgewählten Zeiten (Takten) wird die Sicherheit der Ab- und Aufbuchungs-Daten verbessert. Die Anwendung der Erfindung ist bei allen Authentikationsvorgängen in Verbindung mit Chipkarten möglich.
PCT/EP1997/002894 1996-06-05 1997-06-04 Verfahren und vorrichtung zum laden von inputdaten in einen algorithmus bei der authentikation WO1997046983A2 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT97925042T ATE207643T1 (de) 1996-06-05 1997-06-04 Verfahren und vorrichtung zum laden von inputdaten in einen algorithmus bei der authentikation
JP10500229A JP2000512043A (ja) 1996-06-05 1997-06-04 確認に際してアルゴリズムに入力データをロードする方法および装置
DE59705095T DE59705095D1 (de) 1996-06-05 1997-06-04 Verfahren und vorrichtung zum laden von inputdaten in einen algorithmus bei der authentikation
CA002244126A CA2244126C (en) 1996-06-05 1997-06-04 Procedure and device for loading input data into an algorithm during authentication
AU30321/97A AU3032197A (en) 1996-06-05 1997-06-04 Method and device for loading input data into an algorithm during authentication
EP97925042A EP0909434B1 (de) 1996-06-05 1997-06-04 Verfahren und vorrichtung zum laden von inputdaten in einen algorithmus bei der authentikation
US09/202,024 US7113592B1 (en) 1996-06-05 1997-12-20 Method and device for loading input data into a program when performing an authentication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19622533A DE19622533A1 (de) 1996-06-05 1996-06-05 Verfahren und Vorrichtung zum Laden von Inputdaten in einen Algorithmus bei der Authentikation
DE19622533.7 1996-06-05

Publications (2)

Publication Number Publication Date
WO1997046983A2 WO1997046983A2 (de) 1997-12-11
WO1997046983A3 true WO1997046983A3 (de) 1998-02-26

Family

ID=7796201

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/002894 WO1997046983A2 (de) 1996-06-05 1997-06-04 Verfahren und vorrichtung zum laden von inputdaten in einen algorithmus bei der authentikation

Country Status (8)

Country Link
US (1) US7113592B1 (de)
EP (1) EP0909434B1 (de)
JP (1) JP2000512043A (de)
CN (1) CN1119771C (de)
AT (1) ATE207643T1 (de)
AU (1) AU3032197A (de)
DE (2) DE19622533A1 (de)
WO (1) WO1997046983A2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU735091B2 (en) 1997-10-28 2001-06-28 Fdgs Group, Llc Process for digital signing of a message
DE19818726C1 (de) * 1998-04-27 1999-10-14 Esd Information Technology Ent Ladeterminal für Geldkarten sowie Verfahren zum Betrieb eines solchen
NL1012581C2 (nl) * 1999-07-13 2001-01-16 Koninkl Kpn Nv Werkwijze voor het beschermen van een draagbare kaart.
DE10040854A1 (de) * 2000-08-21 2002-03-21 Infineon Technologies Ag Chipkarte
FR2826531B1 (fr) 2001-06-26 2003-10-24 France Telecom Procede cryptographique pour la protection d'une puce electronique contre la fraude
KR100480258B1 (ko) * 2002-10-15 2005-04-07 삼성전자주식회사 무선 근거리 네트워크에서 고속 핸드오버를 위한 인증방법
JP4254201B2 (ja) * 2002-10-31 2009-04-15 ソニー株式会社 スクランブラ、送信装置および受信装置
CN100409138C (zh) * 2004-07-21 2008-08-06 京瓷美达株式会社 密码验证装置及验证方法
US9940486B2 (en) * 2015-02-23 2018-04-10 Cisco Technology, Inc. Detection of hardware tampering

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471003A1 (fr) * 1979-11-30 1981-06-12 Dassault Electronique Systeme a objet portatif presentant une information confidentielle et lecteur de cette information, notamment pour des transactions financieres et/ou commerciales
EP0409701A1 (de) * 1989-07-19 1991-01-23 France Telecom Karte mit festverdrahteter Mikroschaltung und Verfahren zur Durchführung einer Transaktion zwischen einer solchen Karte und einem Endgerät
DE4419805A1 (de) * 1994-06-06 1995-12-07 Giesecke & Devrient Gmbh Verfahren zur Echtheitsprüfung eines Datenträgers

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719927A (en) * 1970-12-28 1973-03-06 Trw Data Syst Inc Credit control system
DE3877984D1 (de) 1987-03-04 1993-03-18 Siemens Nixdorf Inf Syst Datenaustauschsystem.
GB2205667B (en) * 1987-06-12 1991-11-06 Ncr Co Method of controlling the operation of security modules
DE69133502T2 (de) * 1990-06-01 2006-09-14 Kabushiki Kaisha Toshiba, Kawasaki Geheimübertragungsverfahren und -gerät
DE4119924C3 (de) * 1991-06-17 1996-06-20 Siemens Ag Verfahren zur Sicherung von ladbaren Guthaben in Chipkarten
US6003770A (en) * 1992-10-06 1999-12-21 Interdigital Technology Corporation Wireless telephone debit card system and method
DE59307854D1 (de) * 1992-12-01 1998-01-29 Landis & Gyr Business Support Verfahren zur Abgeltung von Dienstleistungen und/oder Waren und Einrichtung zur Durchführung des Verfahrens
DE4243851A1 (de) 1992-12-23 1994-06-30 Deutsche Bundespost Telekom Verfahren zum Transferieren von Buchgeldbeträgen auf und von Chipkarten
CA2150681C (en) * 1992-12-30 1999-09-14 Richard Taylor A method and apparatus for generating a cipher stream
TW256969B (de) * 1993-01-19 1995-09-11 Siemens Ag
TW266280B (de) * 1993-05-10 1995-12-21 Siemens Ag
JP3582737B2 (ja) * 1993-05-20 2004-10-27 株式会社リコー 信号処理装置
US5363448A (en) * 1993-06-30 1994-11-08 United Technologies Automotive, Inc. Pseudorandom number generation and cryptographic authentication
US5450491A (en) * 1993-08-26 1995-09-12 At&T Corp. Authenticator card and system
US5365585A (en) * 1993-08-30 1994-11-15 Motorola, Inc. Method and apparatus for encryption having a feedback register with selectable taps
DE4333388A1 (de) 1993-09-30 1995-04-06 Giesecke & Devrient Gmbh System zur Durchführung von Transaktionen mit einer Multifunktionskarte mit elektronischer Börse
US5633930A (en) 1994-09-30 1997-05-27 Electronic Payment Services, Inc. Common cryptographic key verification in a transaction network
WO1996010810A1 (de) * 1994-09-30 1996-04-11 Siemens Aktiengesellschaft Datenübertragungssystem mit einem terminal und einer tragbaren datenträgeranordnung und verfahren zum wiederaufladen der tragbaren datenträgeranordnung mittels des terminals
JPH08195735A (ja) * 1995-01-18 1996-07-30 Toshiba Corp デコーダ装置
DE19505097C1 (de) * 1995-02-15 1996-06-05 Siemens Ag Verschlüsselungsvorrichtung
US6014446A (en) * 1995-02-24 2000-01-11 Motorola, Inc. Apparatus for providing improved encryption protection in a communication system
US5664016A (en) * 1995-06-27 1997-09-02 Northern Telecom Limited Method of building fast MACS from hash functions
NL1001659C2 (nl) * 1995-11-15 1997-05-21 Nederland Ptt Werkwijze voor het afwaarderen van een elektronisch betaalmiddel.
DE19545705C2 (de) 1995-12-07 2002-11-21 Deutsche Telekom Ag Verfahren und Vorrichtung zur Zahlung aus Chipkarten mit Börsenfunktion
US5943423A (en) * 1995-12-15 1999-08-24 Entegrity Solutions Corporation Smart token system for secure electronic transactions and identification
US5613001A (en) * 1996-01-16 1997-03-18 Bakhoum; Ezzat G. Digital signature verification technology for smart credit card and internet applications
US6560338B1 (en) * 1998-08-28 2003-05-06 Qualcomm Incorporated Limiting delays associated with the generation of encryption stream ciphers
JP3299730B2 (ja) * 1999-08-20 2002-07-08 有限会社スガイ総業 コイン類の計数選別装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471003A1 (fr) * 1979-11-30 1981-06-12 Dassault Electronique Systeme a objet portatif presentant une information confidentielle et lecteur de cette information, notamment pour des transactions financieres et/ou commerciales
EP0409701A1 (de) * 1989-07-19 1991-01-23 France Telecom Karte mit festverdrahteter Mikroschaltung und Verfahren zur Durchführung einer Transaktion zwischen einer solchen Karte und einem Endgerät
DE4419805A1 (de) * 1994-06-06 1995-12-07 Giesecke & Devrient Gmbh Verfahren zur Echtheitsprüfung eines Datenträgers

Also Published As

Publication number Publication date
AU3032197A (en) 1998-01-05
EP0909434B1 (de) 2001-10-24
DE59705095D1 (de) 2001-11-29
US7113592B1 (en) 2006-09-26
JP2000512043A (ja) 2000-09-12
CN1221507A (zh) 1999-06-30
WO1997046983A2 (de) 1997-12-11
DE19622533A1 (de) 1997-12-11
EP0909434A2 (de) 1999-04-21
CN1119771C (zh) 2003-08-27
ATE207643T1 (de) 2001-11-15

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