FR2699704B1 - Method for updating sensitive data on an EEPROM memory type storage medium. - Google Patents
Method for updating sensitive data on an EEPROM memory type storage medium.Info
- Publication number
- FR2699704B1 FR2699704B1 FR9215649A FR9215649A FR2699704B1 FR 2699704 B1 FR2699704 B1 FR 2699704B1 FR 9215649 A FR9215649 A FR 9215649A FR 9215649 A FR9215649 A FR 9215649A FR 2699704 B1 FR2699704 B1 FR 2699704B1
- Authority
- FR
- France
- Prior art keywords
- location
- storage medium
- sensitive data
- type storage
- data
- 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
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
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/004—Error avoidance
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1435—Saving, restoring, recovering or retrying at system level using file system or storage system metadata
-
- 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
- G06Q20/34—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
- G06Q20/343—Cards including a counter
- G06Q20/3433—Cards including a counter the counter having monetary units
-
- 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
- G07F7/02—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by keys or other credit registering devices
-
- 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
- G07F7/0806—Details of the card
- G07F7/0813—Specific details related to card security
- G07F7/082—Features insuring the integrity of the data on or in the card
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Business, Economics & Management (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Security & Cryptography (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Accounting & Taxation (AREA)
- Strategic Management (AREA)
- General Business, Economics & Management (AREA)
- Library & Information Science (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
- Read Only Memory (AREA)
Abstract
The updating procedure commences with storing in a location of the memory the current value of the data and in another location the previous value of the data. Each of these locations also holds a flag indicating the data is the current value or previous value.New data is written to the location holding the previous value, and the flag at that location set to indicate updating is in process. The flag attached to the current location is then altered to show it is the previous value and the flag at the newly updated location altered to show it is the current location.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9215649A FR2699704B1 (en) | 1992-12-23 | 1992-12-23 | Method for updating sensitive data on an EEPROM memory type storage medium. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9215649A FR2699704B1 (en) | 1992-12-23 | 1992-12-23 | Method for updating sensitive data on an EEPROM memory type storage medium. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2699704A1 FR2699704A1 (en) | 1994-06-24 |
FR2699704B1 true FR2699704B1 (en) | 1995-02-10 |
Family
ID=9437062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9215649A Expired - Lifetime FR2699704B1 (en) | 1992-12-23 | 1992-12-23 | Method for updating sensitive data on an EEPROM memory type storage medium. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2699704B1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2740237B1 (en) * | 1995-10-18 | 1997-11-14 | Schlumberger Ind Sa | ELECTRONIC COMPONENT WITH SYNCHRONIZED MEMORY |
FR2777372B1 (en) * | 1998-04-09 | 2000-06-09 | Innovatron Electronique | METHOD FOR WRITING AND READING THE CONTENT OF THE NON-VOLATILE MEMORY OF A MICROCIRCUIT CARD |
DE19858840A1 (en) * | 1998-12-19 | 2000-06-21 | Orga Kartensysteme Gmbh | Method for bidirectional data transfer between a terminal and a chip card and chip card |
DE19921232B4 (en) * | 1999-05-07 | 2007-06-21 | Giesecke & Devrient Gmbh | Method for the secure writing of a pointer for a ring buffer, associated ring buffer, use of the ring buffer and chip card with ring buffer |
JP4701618B2 (en) * | 2004-02-23 | 2011-06-15 | ソニー株式会社 | Information processing apparatus, information processing method, and computer program |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4800520A (en) * | 1985-10-29 | 1989-01-24 | Kabushiki Kaisha Toshiba | Portable electronic device with garbage collection function |
JPS63120391A (en) * | 1986-11-10 | 1988-05-24 | Hitachi Ltd | Ic card |
-
1992
- 1992-12-23 FR FR9215649A patent/FR2699704B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2699704A1 (en) | 1994-06-24 |
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