KR20020089250A - USB OR IEEE1394 devices for Electronic cash gather/accounts - Google Patents

Abstract

PURPOSE: A device for collecting and calculating purchase transaction is provided to collect and calculate an electronic money easily by performing an electronic signature and a verification being generated in a transaction through a sub SSAM, storing personal transaction details being generated after that in a flash memory, and inserting a connector using a USB or an IEEE1394 as an interface method. CONSTITUTION: A central processing unit(11) makes purchase transaction details be collected after an interactive authentication by connecting through a purchase terminal(15) and a USB or IEEE1394 connector. In addition, a transaction collection unit(10) includes a flash memory(12) and a sub SSAM(13). Thus, a transaction collection calculation is achieved by inserting a connector. A door lock function is performed by replacing the USB or IEEE1394 connector with a key hole and replacing a key with an interactive authentication of the transaction collection unit(10) and the purchase terminal(15), and a collection calculation of the electronic money is achieved.

Description

Purchase transaction collection settlement device with USB or IEEE1394 interface {USB OR IEEE1394 devices for Electronic cash gather / accounts}

The present invention relates to a purchase transaction history collection device and a method of the USB or IEEE1394 interface method, the electronic signature and verification generated during transaction history collection and settlement is made through the sub-SSAM, and the individual transaction history generated thereafter is flash The storage method in the memory (Flash Memory) and the interface method using USB or IEEE1394, so that the purchase settlement is made by the insertion of a single connector to facilitate the collection and settlement of electronic money is made easily.

In general, electronic money is money that uses electronic means. In other words, while traditional currencies perform functions such as exchange means, value measures, deferred payment means, and value storage means in the form of bills or coins, electronic money performs them using electronic means. Historically, various currencies such as commodity, denomination, credit, and electronic money were distinguished by means of means rather than functions or concepts, and the development of printing technology could generalize the use of bills and checks. Likewise, the development of information technology has emerged as a necessary condition for the development of electronic money.

Currently, electronic money is generally classified into three types: smart card type electronic money, network type electronic money, and electronic check type electronic money.

The smart card-type electronic money is a currency in which an IC chip (Integrated Circuit Chip) is stored in a credit card sized card to store the value of an electronic code.

That is, a smart card type electronic money holder pays money by transferring the money value in the IC chip to the goods seller when purchasing the goods.

Currently, the most representative examples of smart card-type electronic money include Master Card's Mondex, Visa's Visa Cash, and Korea's K-Cache.

The operating principle of smart card type electronic money is somewhat different depending on the type of smart card, but is generally composed of issuing smart card, charging smart card, purchasing using smart card, collecting purchased transaction details, and collecting collected money.

That is, a product purchaser who wants to use a smart card receives a smart card from a card issuing company or a member bank of the issuing company, and, if necessary, charges a certain amount from his or her bank account in a charger installed at a bank branch, a public phone, a convenience store, or other merchandise distributor Funds are charged to smart cards and used to pay when purchasing goods at a store with a card reader.

The transfer of funds is equivalent to withdrawing cash from a bank account using a current cash or credit card.

Since smart card type electronic money uses IC chips, it is relatively difficult to forge and tamper with, and it is possible to perform calculations by embedding a central computing unit (CPU).

For such electronic money, if the vending machine vendor manages 100 vending machines equipped with an off-line purchasing terminal (Module with 3 PSAMs) when collecting off-line purchase transaction details (eg vending machine) In the absence of a card, the vendor shall remove up to 300 PSAMs from the terminal for settlement and settle at the designated bank and then put them back. In the case of making and using a separate settlement mechanism to compensate for the above problems, it is a security problem to store the key value in a place other than a smart card due to the problem of exposing the key value in the signature generation and verification stages required at the time of settlement. There is this. Therefore, a purchase settlement card is required to generate signatures, verify signatures, and store individual transaction details. When using a purchase settlement card, the settlement card consists of a total of 60000 individual transactions (300 PSAMs that store 200 transactions per unit). Must have the capacity to store In this case, assuming that each transaction takes up 40 bytes (purchase date, transaction type, e-money issuer ID, e-money ID, transaction serial number, transaction amount, signature, etc.), a total storage capacity of 2.2 MByte is required. In general, the maximum settlement card capacity is 64KByte, so individual transaction details should be collected using at least 35 settlement cards. In this case, difficulty in managing the settlement card, troublesome exchange of the settlement card, and cost problems due to the settlement card purchase may occur.

In the present invention made in consideration of the above problems, the electronic signature and verification generated during the transaction by electronic money is made through the sub SSAM, and the individual transaction details generated afterwards are kept in Flash Memory and the interface method is USB or It provides a purchase transaction history collection and settlement device and method using a USB or IEEE1394 interface to facilitate the collection and settlement of electronic money by enabling the collection and settlement of purchase transactions by simply inserting a connector using IEEE1394. Make it a technical task.

The present invention for achieving the above object is a central processing unit (hereinafter referred to as CPU), flash memory, USB or IEEE1394 Controller to be collected in the future transaction history under the organic cooperation after the mutual authentication by connecting to the access terminal of the purchase terminal Characterized in that comprises a transaction collector having.

Figure 1 is a front view showing the configuration of the present inventors transaction collector, Figure 2 is a front view showing the connection state of the present inventors transaction collector and the purchase terminal, Figure 3 shows the door lock function of the present inventors transaction collector and PSAM module and vending machine Front view.

<Code Description of Main Parts of Drawing>

10: Trade Collector 11: CPU & CONTROLLER

12 flash memory 13: service SSAM

14 connector 15 purchase terminal

16: vending machine 17: connector

18: door lock

Figure 1 is a front view showing the configuration of the present inventors transaction collector, Figure 2 is a front view showing the connection state of the present inventors transaction collector and purchase terminal, Figure 3 is a block showing the door lock function to the vending machine It is also.

1 and 2, the present invention is connected to the purchase terminal 15 and the transaction collector 10 after the mutual authentication, the central processing unit for the collection of the purchase transaction history under organic cooperation And 11, a transaction collector 10 having a flash memory 12, a sub SSAM 13, and a USB or IEEE 1394 connector 14.

The CPU 11 is a microprocessor chip that controls and manages the entire operation of the transaction collector 10, and the flash memory 12 is a PROM which is a rewritable dedicated memory. Memory chip for writing, the sub SSAM 13 is a Security Access Module for obtaining security rights for extracting individual transaction details from the PSAM through signature generation and verification, and the connector 14 is a purchase terminal 15 and a transaction collector. This is a connector for connecting the 10.

The present invention configured as described above can store the transaction details collected from the purchase terminal 15 in the flash memory 12 of the transaction collector 10.

The present invention as described above can process all the series of operations such as transaction collection, settlement, parameter update, system upgrade, door lock function only by inserting the connector.

Claims (2)

The central processing unit 11, the flash memory 12, and the sub SSAM 13, which are connected to the purchase terminal 15 through a USB or IEEE1394 connector, undergo mutual authentication, and collect purchase transaction details under organic cooperation. USB or IEEE1394 type electronic money collection, settlement device that can enable the transaction collection settlement by inserting a connector by configuring a transaction collector having a. A method of coordinating the USB or IEEE1394 connector 17 with a keyhole and coordinating the key with mutual authentication of the transaction collector 10 and the purchase terminal 15 to perform the door lock 18 function while enabling electronic money collection and settlement.