Portable storage medium and portable storage medium issuing system

• US 5,828,053 A
• Filed: 05/14/1996
• Issued: 10/27/1998
• Est. Priority Date: 05/17/1995
• Status: Expired due to Term

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Kinugasa, Hiroshi
• Primary Examiner(s): Hajec, Donald T.
• Assistant Examiner(s): Le, Thien Minh
• Application Number:
  US08/645,843
• Time in Patent Office: 896 Days
• Field of Search: 235/320, 235/379, 235/492, 235/486, 235/382, 235/487, 340/825.31-825.35
• US Class Current: 235/492
• CPC Class Codes: G06Q 20/341 Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
• CPC Class Codes: G06Q 20/355 Personalisation of cards for use
• CPC Class Codes: G06Q 20/3576 Multiple memory zones on card
• CPC Class Codes: G07F 7/1008 Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system

Abstract

A portable storage medium issuing system writes plural issuing data in storing regions in a portable storage medium. The system includes a first memory to store plural secret data, a second memory to collate input secret data with the secret data stored in the first memory and stores a secret data out of plural secret data, which is collated and agreed with the secret data stored in the first memory based on the collated result, a third memory to store the plural issuing data and secret data which has been set corresponding to each of plural issuing data and requires the collation before writing into the portable storage medium as collating conditions. The collating condition stored in the third memory is compared with the collated status stored in the second memory. When the collated status satisfies the collating condition based on the result of this comparison, the issuing data in which the collating condition has been set in the storing region is written in the portable storage medium.

Claims

1. A portable storage medium issuing system for writing plural issuing data into storing regions of a portable storage medium, comprising:

means for storing plural secret data;

first collating means for collating input secret data with the secret data stored in the storing means;

collated result storage means for storing which secret data of plural secret data has been collated and agreed with secrete data stored in the storage means based on the collating result of the first collating means;

collating condition storage means for storing plural issuing data and conditions of secret data, which are set corresponding to each of the plural issuing data and require the collation before writing into the portable storage medium, as collating conditions;

comparing means for comparing the collating conditions stored in the collating condition storage means with the collated status stored in the collated result storage means; and

writing means for writing issuing data in which this collating conditions are set in storing regions in the portable storage means when the collated status satisfies the collating conditions based on the result of comparison of the comparing means.

2. A portable storage medium issuing system as claimed in claim 1, further comprising:

second collating means for collating secret data if the secret data of which collation is required by the collating condition has not yet been collated as a result of the comparison by the comparing means; and

updating means for updating the collated status according to the result of collation by the second collating means;

wherein the writing means writes the issuing data after the collated status satisfies the collating condition.

3. A portable storage medium issuing system as claimed in claim 1, further comprising:

erasing means for erasing the result of collation stored in the collated result storage means when secret data other than those requiring the collation by the collating condition were collated as a result of the comparison by the comparing means;

wherein the writing means writes the issuing data after the secret data requiring the collation are collated by the collating condition storage means and the collated status satisfies the collating condition.

4. A portable storage medium which has plural storing regions in which plural issuing data are written, comprising:

storage means for storing plural secret data;

collating means for collating input secret data with the secret data stored in the storage means;

collated result storage means for storing which secret data out of plural secret data has been collated and agreed based on the result of collation of the collating means;

collating condition storage means for storing secret data condition which has been set corresponding to each of the plural storing regions and requires the collation before writing issuing data into the storing region as the collating condition;

comparing means for comparing the collating condition stored in the collating condition storage means with the collated status stored in the collated result storage means; and

writing means for writing issuing data supplied from an issuing system into a storing region wherein the collating condition has been set when the collated status satisfies the collating condition based on the result of comparison of the comparing means.

5. A portable storage medium as claimed in claim 4, further comprising erasing means for erasing the result of collation stored in the collated result storage means if secret data other than those requiring the collation has been collated by the collating condition as a result of the comparison by the comparing means.

6. A portable storage medium issuing method for writing plural issuing data into storing regions of a portable storage medium, comprising:

first step of storing plural secret data in a storage means;

second step of collating input secrete data with the secret data stored in the storage means;

third step of storing secrete data out of plural secret data that has been collated and agreed based on the collated result by the second step;

fourth step of storing the secret data condition which has been set corresponding to each of plural issuing data and requires the collation before writing into the portable storage medium as the collating condition;

fifth step of comparing the collating condition stored in the fourth step with the collated status stored in the third step; and

sixth step of writing the issuing data with the collating condition set in the storing regions in the portable storage medium when the collated status satisfies the collating condition based on the result of comparison in the fifth step.

7. A portable storage medium issuing method as claimed in claim 6, further comprising:

seventh step of collating secret data if the secret data requiring the collation with the collating condition has not been collated as a result of the comparison in the fifth step; and

eighth step of updating the collated status based on the collated result in the seventh step;

wherein the sixth step executes after the collated status has satisfied the collating condition.

8. A portable storage medium issuing method as claimed in claim 6, further comprising:

ninth step of erasing the collated result stored in the third step if secret data other than those requiring the collation has been collated by the collating condition as a result of comparison in the fifth step;

wherein the sixth step executes after the secret data requiring the collation in the fourth step has been collated and the collated status satisfies the collating condition.