JPS6448151A - Data processor - Google Patents
Data processorInfo
- Publication number
- JPS6448151A JPS6448151A JP20400987A JP20400987A JPS6448151A JP S6448151 A JPS6448151 A JP S6448151A JP 20400987 A JP20400987 A JP 20400987A JP 20400987 A JP20400987 A JP 20400987A JP S6448151 A JPS6448151 A JP S6448151A
- Authority
- JP
- Japan
- Prior art keywords
- pin code
- storage
- card
- data
- 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.)
- Pending
Links
- 238000013500 data storage Methods 0.000 abstract 2
Landscapes
- Storage Device Security (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
Abstract
PURPOSE:To improve the security of a PIN code by using a variable code, which is changed at each time of changing or reading data, as a part of the PIN code. CONSTITUTION:An IC card A consists of a CPU part 1A for control and operation, a storage part 2A for normal data storage, an input/output part 3A, a PIN code storage part 4A, etc., and a host computer C similarly consists of a CPU part 1C, a storage part 2C for normal data storage, an input/output part 3C, a PIN code storage part 4C, etc., and the variable code which is changed at each time of changing of reading data is used as parts (d) and (e) of the PIN code which is used for change or read of specific data in the IC card A. Thus, possibility that the PIN code is detected by others is reduced to reduce a probability of wrong change or wrong read of data in offline and the security of the IC card is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20400987A JPS6448151A (en) | 1987-08-19 | 1987-08-19 | Data processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20400987A JPS6448151A (en) | 1987-08-19 | 1987-08-19 | Data processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6448151A true JPS6448151A (en) | 1989-02-22 |
Family
ID=16483259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20400987A Pending JPS6448151A (en) | 1987-08-19 | 1987-08-19 | Data processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6448151A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02273886A (en) * | 1989-04-14 | 1990-11-08 | Omron Corp | Ic card device |
JPH08180259A (en) * | 1989-08-10 | 1996-07-12 | Roehm Properties Bv | Usage-charge payment device and supply apparatus of object to be used |
JP2005044191A (en) * | 2003-07-23 | 2005-02-17 | Toppan Printing Co Ltd | Storage device, and authentication method and program thereof |
-
1987
- 1987-08-19 JP JP20400987A patent/JPS6448151A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02273886A (en) * | 1989-04-14 | 1990-11-08 | Omron Corp | Ic card device |
JPH08180259A (en) * | 1989-08-10 | 1996-07-12 | Roehm Properties Bv | Usage-charge payment device and supply apparatus of object to be used |
JP2005044191A (en) * | 2003-07-23 | 2005-02-17 | Toppan Printing Co Ltd | Storage device, and authentication method and program thereof |
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