ES2077566T3 - PROCEDURE FOR THE SECURITY OF SECRET CODED DATA DEPOSITED IN A DATA MEMORY AND CIRCUIT PROVISION FOR THE PERFORMANCE OF THE PROCEDURE. - Google Patents

PROCEDURE FOR THE SECURITY OF SECRET CODED DATA DEPOSITED IN A DATA MEMORY AND CIRCUIT PROVISION FOR THE PERFORMANCE OF THE PROCEDURE.

Info

Publication number
ES2077566T3
ES2077566T3 ES89101292T ES89101292T ES2077566T3 ES 2077566 T3 ES2077566 T3 ES 2077566T3 ES 89101292 T ES89101292 T ES 89101292T ES 89101292 T ES89101292 T ES 89101292T ES 2077566 T3 ES2077566 T3 ES 2077566T3
Authority
ES
Spain
Prior art keywords
procedure
data memory
code data
security
performance
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
ES89101292T
Other languages
Spanish (es)
Inventor
Hartmut Dr Schrenk
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of ES2077566T3 publication Critical patent/ES2077566T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • G07F7/1025—Identification of user by a PIN code

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
  • Electric Clocks (AREA)
  • Circuits Of Receivers In General (AREA)
  • Control Of El Displays (AREA)

Abstract

The invention relates to a method and circuitry for securing code data stored in a code data memory (1a) prior to analysis, in which the signals at the code data memory outputs provide an indication of the contents of the code data memory. According to the invention, a blocking circuit (4), controlled by a blocking logic circuit (9), is provided at the code data memory outputs, which it blocks as soon as entered control data fails to match the code data. <IMAGE>
ES89101292T 1988-02-25 1989-01-25 PROCEDURE FOR THE SECURITY OF SECRET CODED DATA DEPOSITED IN A DATA MEMORY AND CIRCUIT PROVISION FOR THE PERFORMANCE OF THE PROCEDURE. Expired - Lifetime ES2077566T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3805977 1988-02-25

Publications (1)

Publication Number Publication Date
ES2077566T3 true ES2077566T3 (en) 1995-12-01

Family

ID=6348186

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89101292T Expired - Lifetime ES2077566T3 (en) 1988-02-25 1989-01-25 PROCEDURE FOR THE SECURITY OF SECRET CODED DATA DEPOSITED IN A DATA MEMORY AND CIRCUIT PROVISION FOR THE PERFORMANCE OF THE PROCEDURE.

Country Status (6)

Country Link
EP (1) EP0329966B1 (en)
AT (1) ATE128258T1 (en)
DE (1) DE58909440D1 (en)
DK (1) DK169883B1 (en)
ES (1) ES2077566T3 (en)
FI (1) FI100068B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2941361B2 (en) * 1990-06-07 1999-08-25 株式会社東芝 Portable electronic devices
FR2789774B1 (en) 1999-02-11 2001-04-20 Bull Cp8 SECURE COMPARISON METHOD OF TWO MEMORY REGISTERS, AND SECURITY MODULE IMPLEMENTING SAID METHOD

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761892A (en) * 1971-07-19 1973-09-25 R Bosnyak Electronic locking system
US3829833A (en) * 1972-10-24 1974-08-13 Information Identification Co Code element identification method and apparatus
FR2311365A1 (en) * 1975-05-13 1976-12-10 Innovation Ste Int SYSTEM FOR TRANSFERRING AND STORING DATA IN A PERSONAL AND CONFIDENTIAL WAY BY MEANS OF PORTABLE INDEPENDENT ELECTRONIC OBJECTS
DE3671119D1 (en) * 1985-07-03 1990-06-13 Siemens Ag INTEGRATED CIRCUIT AND METHOD FOR SECURING SECRET CODE DATA.
JPS6267800A (en) * 1985-09-20 1987-03-27 Hitachi Ltd Semiconductor integrated circuit device

Also Published As

Publication number Publication date
DK169883B1 (en) 1995-03-20
DK728088D0 (en) 1988-12-29
DK728088A (en) 1989-08-26
EP0329966A1 (en) 1989-08-30
FI890900A (en) 1989-08-26
EP0329966B1 (en) 1995-09-20
ATE128258T1 (en) 1995-10-15
DE58909440D1 (en) 1995-10-26
FI890900A0 (en) 1989-02-24
FI100068B (en) 1997-09-15

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