WO2001093139A1 - Systeme pour des valeurs electroniques - Google Patents
Systeme pour des valeurs electroniques Download PDFInfo
- Publication number
- WO2001093139A1 WO2001093139A1 PCT/JP2001/004538 JP0104538W WO0193139A1 WO 2001093139 A1 WO2001093139 A1 WO 2001093139A1 JP 0104538 W JP0104538 W JP 0104538W WO 0193139 A1 WO0193139 A1 WO 0193139A1
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- WO
- WIPO (PCT)
- Prior art keywords
- electronic
- communication terminal
- electronic value
- value
- transaction
- Prior art date
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Classifications
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- 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
- G06Q20/36—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes
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- 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
- G06Q20/04—Payment circuits
- G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
- G06Q20/065—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash
- G06Q20/0658—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme using e-cash e-cash managed locally
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- 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
- G06Q20/04—Payment circuits
- G06Q20/06—Private payment circuits, e.g. involving electronic currency used among participants of a common payment scheme
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- 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
- G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
- G06Q20/322—Aspects of commerce using mobile devices [M-devices]
- G06Q20/3229—Use of the SIM of a M-device as secure element
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- 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
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- 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
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- 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
- G06Q20/36—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes
- G06Q20/363—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes with the personal data of a user
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- 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
- G06Q20/36—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes
- G06Q20/367—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using electronic wallets or electronic money safes involving electronic purses or money safes
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- 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
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
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- 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
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
- G06Q20/3821—Electronic credentials
- G06Q20/38215—Use of certificates or encrypted proofs of transaction rights
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- 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
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
- G06Q20/3823—Payment protocols; Details thereof insuring higher security of transaction combining multiple encryption tools for a transaction
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- 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
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/389—Keeping log of transactions for guaranteeing non-repudiation of a transaction
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- 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
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/42—Confirmation, e.g. check or permission by the legal debtor of payment
- G06Q20/425—Confirmation, e.g. check or permission by the legal debtor of payment using two different networks, one for transaction and one for security confirmation
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- 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
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- 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
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- 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
- G07F7/0873—Details of the card reader
- G07F7/088—Details of the card reader the card reader being part of the point of sale [POS] terminal or electronic cash register [ECR] itself
- G07F7/0886—Details of the card reader the card reader being part of the point of sale [POS] terminal or electronic cash register [ECR] itself the card reader being portable for interacting with a POS or ECR in realizing a payment transaction
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Definitions
- the present invention relates to an electronic parallax system for performing electronic commerce using an electronic value.
- BACKGROUND ART Various systems have been proposed for performing cashless shocking using electronic money information (hereinafter referred to as electronic value).
- the present invention has been made in view of such a background, and an object of the present invention is to provide an electronic value system, a communication terminal, and a server that ensure security and improve processing efficiency.
- the present invention has a memory for storing an electronic value and a communication means for transmitting and receiving an electronic value to and from an external node, and plays a role as a user's electronic wallet.
- a memory for storing an electronic value
- a communication means for transmitting and receiving an electronic value to and from an external node, and plays a role as a user's electronic wallet.
- an electronic value Electronic account holding means for storing the electronic value
- transfer means for transferring the electronic value from the electronic account holding means to the memory of the communication terminal via the network, and transaction using the electronic value by the communication terminal.
- Transaction log notification means for transmitting a transaction log indicating the details of the transaction, and the electronic value balance information provided on the network and stored in the memory of the communication terminal.
- a wallet balance management unit that receives the transaction log transmitted from the transaction log notification unit and updates the balance information of the electronic value associated with the transaction log. I will provide a.
- the wallet balance management means stores the balance of the electronic value in the electronic account, stores the balance of the electronic value stored in the communication terminal as the electronic wallet, and responds to the content of the transaction. Since the balance of the electronic value in the communication terminal is updated, unauthorized rewriting of the electronic value on the communication terminal side can be detected.
- the plurality of communication terminals in the electronic value system include a first communication terminal and a second communication terminal that transmit and receive the electronic value to and from each other, and wherein the first communication terminal includes the memory
- the self-identification information is transmitted to the second communication terminal together with the electronic value stored in the first communication terminal, and the second communication terminal transmits the electronic value transmitted from the first communication terminal and the first value.
- the identification information of the communication terminal is transmitted to the first communication terminal, and the transaction port notification means includes at least one of the first communication terminal and the second communication terminal.
- the value of the transmitted and received electronic value and the identification information of the first communication terminal and the second communication terminal are transmitted to the wallet balance management means as the transaction log.
- the wallet balance management means based on the transaction log that comes the being sent, to update the balance information of the electronic value.
- the first communication terminal and the second communication terminal transmit and receive the electronic value to and from each other, a transaction log provided from at least one of the first communication terminal and the second communication terminal. Updates the electronic value balance stored in the communication terminal. That is, since only one communication terminal transmits the transaction log, the processing efficiency of the electronic value information is improved.
- the first communication terminal and the second communication terminal each include a log storage unit that stores the transaction log relating to the transaction of the first communication terminal and the second communication terminal. When at least one of the terminals accumulates the transaction log in an amount corresponding to the storage capacity of the log accumulating means, the terminal does not transmit / receive an electronic value to / from an external node.
- the first communication terminal and the second communication terminal each include a log accumulation unit that accumulates the transaction log relating to the own transaction, and the first communication terminal or When at least one of the second communication terminals accumulates the transaction log in an amount corresponding to the storage capacity of the log accumulation means, in subsequent transactions, the transaction log starts from the oldest transaction date and time. To delete.
- the first communication terminal and the second communication terminal each include a log accumulation unit that accumulates the transaction log relating to the own transaction, and the transaction log notification unit includes the first communication terminal.
- the transaction log is transmitted to the wallet balance management unit.
- the communication terminal is a mobile communication terminal accommodated in a mobile communication network
- the network is the mobile communication network
- the first communication terminal and The second communication terminal may perform wireless communication.
- the memory of the communication terminal may be, for example, an IC card used by being mounted on the communication terminal.
- the communication terminal may add the transmission date and time to the electronic value and transmit the electronic value.
- the communication terminal performs security processing for performing electronic authentication and encryption / decryption processing using the key with respect to the electronic value, and periodically updates the key. Updating means may be provided.
- the present invention is an electronic value system for transmitting and receiving an electronic value, which is electronic monetary information, between a first communication terminal and a second communication terminal, wherein the first communication terminal comprises: Stores a value, identification information of the issuer that issued the electronic value, and an electronic signature applied to the identification information by the issuer.
- a transmitting unit for transmitting the identification information of the issuer and the electronic signature to the second communication terminal together with the stored electronic value
- the second communication terminal comprises: Receiving means for receiving the identification information and the electronic signature of the issuer together with the electronic parue sent from the first communication terminal; and verifying the received electronic signature, the first communication
- An electronic value system comprising: a determination unit that determines whether the first communication terminal is legitimate by confirming that the electronic value transmitted from the terminal has been issued by the issuing entity. I will provide a.
- the first communication terminal and the second communication terminal transmit and receive the electronic value to and from each other
- the first communication terminal transmits the electronic value to the electronic value to be transmitted by the issuer of the issuer who issued the electronic value.
- the second communication terminal verifies the received electronic value by verifying the received identification information and the electronic signature of the issuing entity.
- the first communication terminal and the second communication terminal transmit and receive an electronic value to and from each other
- the first communication terminal transmits, to the transmitted electronic value, the identification information of the issuer who has issued the electronic value and the issuing value.
- the second communication terminal verifies the received electronic value by verifying the received issuer's identification information and digital signature. As a result, the validity of the electronic parallax is confirmed only between the communication terminals, and security can be ensured while increasing the efficiency of processing relating to electronic value.
- the second communication terminal is a memory that stores the electronic value, identification information of an issuer that has issued the electronic value, and an electronic signature applied to the identification information by the issuer.
- transmitting means for transmitting the stored identification information and the electronic signature of the issuer to the first communication terminal, wherein the first communication terminal transmits to the second communication terminal Before transmitting the electronic value, the identification information of the issuer in the memory of the second communication terminal is transmitted.
- an obtaining means for obtaining an electronic signature applied to the identification information by the issuing entity; verifying the obtained electronic signature; and an electronic pallet in a memory of the second communication terminal is determined by the issuing entity.
- the apparatus further includes a determination unit that determines the validity of the second communication terminal by confirming that the communication terminal has been issued.
- the first communication terminal and the second communication terminal each include a log storage unit that stores the transaction log relating to the own transaction, and the first communication terminal or the second communication terminal When at least one of the second communication terminals accumulates the transaction log corresponding to the storage capacity of the log accumulating means, the external node managing the electronic value balance information stored by itself. In response, the stored transaction log may be transmitted.
- the first communication terminal and the second communication terminal may transmit and receive electronic values wirelessly.
- At least one of the first communication terminal and the second communication terminal may be a mobile communication terminal accommodated in a mobile communication network.
- the second communication terminal may be built in, for example, a vending machine that sells a product.
- the communication terminal may add the transmission date and time to the electronic parallax and transmit the electronic value.
- the communication terminal when transmitting and receiving the electronic value to / from the outside, performs security processing for performing electronic authentication and encryption / decryption using a key for the electronic value, and periodically updates the key. Updating means may be provided.
- the present invention provides a memory for storing an electronic value, which is electronic monetary information, and its own identification information; a communication means for transmitting and receiving the electronic value to and from an external node; Providing the identification information of the own node to the external node, an identification information exchange means for acquiring the identification information of the external node from the external node, an amount of the electronic value transmitted and received between the external node,
- a communication terminal comprising: a storage unit that stores the identification information of the self and the identification information of the external node as a transaction port.
- the communication terminal when the communication terminal accumulates the transaction log corresponding to the storage capacity of the log accumulation unit, the communication terminal transmits the electronic value to the external node. Do not receive.
- the communication terminal when the communication terminal accumulates the transaction log corresponding to the storage capacity of the log accumulating means, when the electronic value is transmitted and received thereafter, the accumulated transaction log is sorted in chronological order of transmission and reception date and time. May be deleted.
- the communication terminal may transmit the accumulated transaction log to an external device that checks the validity of transmission and reception of the electronic value using the transaction log.
- the communication terminal when transmitting and receiving the electronic value to / from the outside, performs security processing for performing electronic authentication and encryption / decryption processing using the key for the electronic value, and periodically updates the key. And updating means.
- the communication terminal when transmitting the electronic value to the external node, adds the transmission date and time to the electronic value and transmits the electronic value.
- the communication unit transmits and receives the electronic value to and from the external node by wireless.
- the communication terminal is, for example, a mobile communication terminal accommodated in a mobile communication network, and the memory is an IC card used by being attached to the communication terminal.
- the present invention provides a memory for storing an electronic value that is electronic money information, identification information of an issuer of the electronic value, and an electronic signature applied to the identification information by the issuer, Communication means for transmitting and receiving the electronic value to and from an external node; and addition means for adding the identification information of the issuer and the electronic signature to the electronic value transmitted to the external node by the communication means.
- a verification unit that verifies the validity of the electronic value by verifying the identification information of the issuer and the electronic signature added to the electronic value received from the external node by the communication unit.
- a communication terminal characterized by the following. In a preferred aspect, when the communication terminal transmits and receives the electronic value to / from the outside, the communication terminal performs electronic authentication and encryption / decryption processing using a key with respect to the electronic parue; And updating means for updating the information.
- the communication terminal When transmitting the electronic value to the external node, the communication terminal transmits the electronic value to the external node. Time may be added to the electronic value and transmitted.
- the communication means may transmit and receive the electronic value to and from the external node wirelessly.
- the communication terminal is, for example, a mobile communication terminal accommodated in a mobile communication network, and the memory is an IC card mounted on the communication terminal.
- the present invention is a server for storing electronic value as electronic money information, wherein the electronic value is stored for each electronic account assigned to a user, and the electronic value is stored.
- a communication terminal having a memory and a communication means for transmitting and receiving the electronic value to and from an external node, a transfer means for transferring the electronic value stored by the electronic account holding means via the network.
- Wallet storage means for storing balance information of the electronic value stored in the memory of the communication terminal, wherein a transaction log indicating the content of the transaction at the communication terminal using the electronic value is transmitted from the communication terminal to the network.
- a log acquisition means for acquiring the remaining balance of the purse based on the acquired transaction log. Updating the balance information of electronic Bariyu stored to provide a server that anda purse balance update hand stage.
- the server includes an electronic authentication unit that performs electronic authentication on the downloaded electronic value information using a key stored therein.
- FIG. 1 is a block diagram showing a configuration of an entire system according to an embodiment of the present invention.
- FIG. 2 is a block diagram showing the configuration of the electronic bank server according to the embodiment.
- FIG. 3 is a diagram for explaining the storage contents of the database in the electronic bank server in the embodiment.
- FIG. 4 is a view for explaining the storage contents of the database in the electronic bank server in the embodiment.
- FIG. 5 is a diagram for explaining the storage contents of the database in the electronic bank server in the embodiment.
- FIG. 6 is a block diagram showing a configuration of the mobile device in the embodiment.
- FIG. 7 is a diagram illustrating the stored contents of the UIM in the embodiment.
- FIG. 8 is a diagram illustrating the stored contents of the UIM in the embodiment.
- FIG. 9 is a diagram illustrating the stored contents of the UIM in the embodiment.
- FIG. 10 is a view for explaining the stored contents of the prepaid card in the embodiment.
- FIG. 11 is a view for explaining the stored contents of the prepaid card in the embodiment.
- FIG. 12 is a diagram illustrating the operation of opening an electronic account.
- FIG. 13 is a sequence diagram showing an operation of the entire system in the embodiment.
- FIG. 14 is a sequence diagram showing an operation of the entire system in the embodiment.
- FIG. 15 is a sequence diagram showing the operation of the entire system in the embodiment.
- FIG. 16 is a sequence diagram showing the operation of the entire system in the embodiment.
- FIG. 17 is a sequence diagram showing an operation of the entire system in the embodiment.
- FIG. 18 is a sequence diagram showing an operation of the entire system in the embodiment.
- FIG. 19 is a block diagram showing a configuration of the entire system in an application example of the embodiment. BEST MODE FOR CARRYING OUT THE INVENTION
- BEST MODE FOR CARRYING OUT THE INVENTION BEST MODE FOR CARRYING OUT THE INVENTION
- an electronic account of each user is opened in an electronic bank provided on the network, and a mobile device owned by each user is used as an electronic wallet.
- electronic value exchange electronic authentication and encryption / decryption functions based on the public key encryption (PKI) -based RSA public key cryptosystem will be used.
- PKI public key encryption
- FIG. 1 is a block diagram showing the configuration of the entire system according to the embodiment.
- this system consists of a mobile station MS, a mobile communication network MN, a prepaid card PC, an electronic bank server EBS, a bank system BS, an in-net network I NET, an application station server RA, and a certificate authority server. It consists of CA and directory server DS.
- a prepaid card PC is a contactless IC card that stores electronic value information on electronic value in advance.
- the prepaid card PC has a function of wirelessly transmitting stored electronic value information to an external node, and functions as an electronic wallet for the user.
- infrared rays such as IrDA (Infrared Data Association) are used.
- the mobile device MS is, for example, a mobile phone, and performs voice communication and data communication via the mobile communication network MN.
- This mobile device MS has an internal IC card that controls the storage and input / output of electronic value information related to electronic value.
- this IC card is referred to as UIM (User Identity Module) 1.
- the mobile station MS reads out the electronic value information in the UIM 1 and exchanges it with an external node to realize various commercial transactions.
- the electronic value can be exchanged in two ways: transmitting and receiving electronic value information to and from an electronic bank server EBS or another mobile device MS via a mobile communication network MN; and transmitting and receiving electronic value information from a prepaid card PC via infrared rays. In some cases, value information is sent and received.
- the mobile communication network MN includes a base station MBS and a switching center (not shown), and provides a voice communication service and a data communication service to the mobile station MS.
- the mobile communication network MN is connected to the Internet NET via a gateway device (not shown).
- the electronic bank server EBS is connected to the mobile communication network MN and is connected to a bank system BS installed in a bank (not shown) by a dedicated line. This electronic bank server EBS has established virtual bank accounts (hereinafter referred to as electronic accounts) assigned to each user.
- Electronic bank server EBS is used to identify electronic accounts E-Value information such as the e-Valid number of the e-Value and the e-Value balance in the e-account are stored, and processing such as deposit, withdrawal, and transfer of e-Value in the e-account in response to a request from the mobile station MS It is supposed to do.
- E-Value information such as the e-Valid number of the e-Value and the e-Value balance in the e-account are stored, and processing such as deposit, withdrawal, and transfer of e-Value in the e-account in response to a request from the mobile station MS It is supposed to do.
- the electronic bank server EBS stores not only the electronic account described above but also the balance of the electronic value in the electronic wallet such as the mobile device MS and the prepaid card PC.
- the notice is updated to update the balance. Therefore, even if the electronic value is rewritten illegally on the electronic wallet side, for example, the mobile device MS or the prepaid card PC, the electronic bank server EBS compares the electronic value with the balance stored by itself, thereby making it illegal. Rewriting can be detected.
- the certificate authority server CA is a well-known server that issues a digital certificate based on the RSA public key cryptosystem and compliant with the standard X.509, and is connected to the Internet NET. Specifically, the certificate authority server CA responds to a request for issuing a public key certificate transmitted from each node on the network and issues an electronic certificate for guaranteeing the validity of the public key of each node. Sign and create a public key certificate. Since this digital signature is performed using the signature private key held by the certificate authority server CA, each node that has obtained the public key certificate uses this public key certificate by using the public key of the certificate authority server CA distributed in advance. Is decrypted. In addition, since each of the above nodes encrypts the data with the public key of the certificate authority server CA and transmits it to the certificate authority server CA, the certificate authority server CA decrypts the ciphertext. The private key is stored.
- the directory server DS is a well-known server that stores a public key certificate created by a certificate authority server CA and a revocation list CRL (Certificate Revocation List) of the public key certificate, and is connected to the Internet I NET. ing.
- the directory server DS has a function of searching for public key certificates corresponding to the acquisition request of each node from the public key certificates stored therein and distributing the public key certificates.
- the public keys of the mobile station MS and the electronic bank server EBS are issued a public key certificate by the certificate authority server CA. Therefore, Mobile node MS or electronic bank server The node that is the communication partner of EBS obtains a public key certificate from directory server DS and verifies the electronic signature, so that a third party has not impersonated the communication partner. Can be confirmed.
- the application station server RA is a server provided on the Internet-INET and accepts applications for opening electronic accounts by users, and cooperates with the electronic bank server EBS, the certificate authority CA, and the directory server DS to provide electronic accounts. Execute the process related to the establishment of the service.
- This application station server RA stores a private key for signature and an encryption certificate for a certificate authority.
- the signature private key is a key for the application server RA to apply an electronic signature to the data to be transmitted to the external node, thereby preventing a third party from impersonating the application server RA.
- the certificate for the CA is a public key certificate for encrypting the data to be transmitted to the CA server CA.
- the ciphertext based on the CA certificate is decrypted by the decryption private key owned by the CA server CA.
- the electronic bank server EBS includes a communication unit 11, a control unit 12, a database 13, and a path 14 for interconnecting these.
- the communication unit 11 includes a connection interface (not shown) with the Internet I NET and a communication control circuit (not shown).
- the communication unit 31 performs data communication with the certificate authority server CA and the directory server DS via the mobile communication network MN and the Internet NET, and also communicates with the mobile station MS via the mobile communication network MN. Perform communication.
- the control unit 12 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory), not shown, and controls the entire electronic bank server EBS.
- CPU Central Processing Unit
- ROM Read Only Memory
- RAM Random Access Memory
- the database 13 contains "signature private key” and "decryption secret key”. Key, certificate authority verification certificate, and electronic value management information are stored.
- the “signature private key” is a secret key for applying an electronic signature to the data sent by the electronic bank server EBS to an external node.
- the public key corresponding to the signature private key is registered in the directory server DS after the certificate is issued by the certificate authority server CA.
- the “decryption secret key” is a secret key for decrypting the ciphertext received by the electronic bank server EBS.
- the public key corresponding to this private key is registered in the directory server DS after the certificate is issued by the certificate authority server CA.
- the “certificate authority signature verification certificate” is a public key certificate for verifying the digital signature given to various certificates by the certificate authority server CA using a private key. Since the certificate for the certificate authority signature verification is registered in the directory server DS, the electronic bank server EBS can obtain the certificate by accessing the directory server DS.
- the “electronic value management information” is information for managing the electronic value information stored in the mobile device MS and the electronic value information stored in the prepaid card PC.
- FIG. 4 is a diagram illustrating electronic value management information for managing electronic value information stored in UIM 1 of mobile device MS.
- the electronic value management information includes “electronic bank ID”, “electronic account number”, “electronic value of electronic account”, “electronic value of UIM”, and “update of electronic value”.
- Electronic bank ID is the identification information of the electronic bank server EBS that issued the electronic value.
- “Electronic account number” is identification information for identifying each electronic account.
- Electronic value of electronic account means that mobile device MS is the last electronic bank server EBS Is the balance of the electronic value in the electronic account at the time of access.
- UIM electronic value is the balance of the electronic value in UIM1 when the mobile station MS last accessed the electronic bank server EBS.
- the “electronic value update time stamp” is information indicating the date and time when the “UIM electronic value amount” was updated, and is issued by the electronic bank server EBS. By using this time stamp, an illegal retransmission of the electronic value can be detected as described later.
- “Electronic Account Current Electronic Value Amount” is the current electronic value balance in the electronic account.
- UIM current electronic value amount is the balance of electronic value to be reflected in UIM1.
- either one of the mobile stations communicates with the electronic bank server EBS.
- the electronic bank server EBS calculates the electronic value amount to be stored in both mobile stations MS.
- the electronic value to be reflected in the UIM 1 in the mobile device MS not communicating with the electronic bank server EBS is equivalent to the power-rent electronic value of the UIM.
- the “time stamp for updating the current electronic value” certifies the date and time when the current electronic value of the electronic account and the current electronic value of UIM were updated. By using this time stamp, unauthorized retransmission of the electronic value can be found as described later.
- the “electronic value update history” is the update history of the “UIM electronic value amount” from the time when the mobile station MS last accessed the electronic bank server EBS to the present.
- the electronic value management information for managing the electronic value information stored in the prepaid PC will be described with reference to FIG.
- the difference between the electronic value management information shown in the figure and the electronic value management information shown in Figure 4 is that the prepaid card PC is the object of the electronic wallet instead of UIM 1, "Prepaid card ID" is used instead of "Za number”.
- the electronic value management information in the electronic bank server EBS between UIM 1 and the prepaid card PC. This is because UI Ml and e-accounts are fixedly supported on a one-to-one basis, whereas prepaid cards can be assigned, so managing prepaid PCs and e-accounts in a corresponding manner Instead, the electronic value is managed using the ID of each prepaid force.
- the mobile station MS includes a radio communication unit 2, a control unit 3, a user interface 4, a UIM 1, an infrared communication unit 5, and a bus 6 for interconnecting these.
- the wireless communication unit 2 includes an antenna and a communication control circuit (not shown), and performs wireless communication with the base station MBS of the mobile communication network MN.
- the infrared communication unit 5 performs infrared communication with the prepaid card PC.
- the control unit 3 includes a CPU, ROM, and RAM (not shown), and controls the entire mobile station MS.
- the mobile station MS has a function of performing voice communication and data communication and a function of performing processing related to electronic value, and a user can switch between these two functions according to the purpose.
- the control section 3 controls each section of the mobile station MS. In the processing related to the electronic value, the control unit 3 performs processing such as electronic authentication, encryption / decryption, timestamp generation / verification, private key management, public key certificate management, and the like.
- the user interface 4 includes a keypad for the user to perform an input operation, a liquid crystal panel for displaying various information, a microphone and a speaker for the user to talk.
- the UI Ml includes “Signing private key”, “Decrypting private key”, “Electronic bank signature verification certificate”, “Electronic bank encryption certificate”, “Certificate authority” Signature verification Certificate, "user ID” and “electronic value information" are stored.
- the “signature secret key” is a secret key for applying an electronic signature to data transmitted from the mobile station MS to an external node. In this way, by applying an electronic signature to the data transmitted to the external node, it is possible to prevent a third party from impersonating the user of the mobile station MS.
- the “decryption secret key” is a secret key for decrypting the cipher text received by the mobile station MS. As described above, since the ciphertext is transmitted to the mobile station MS, eavesdropping by a third party is prevented.
- E-bank signature verification certificate is a public key certificate for verifying the electronic signature signed by the e-bank server EBS. That is, since the electronic bank server EBS digitally signs data addressed to the mobile station MS, it is possible to prevent a third party from becoming the electronic bank server EBS.
- “Electronic bank encryption certificate” is a public key certificate for encrypting data sent to the electronic bank server EBS. That is, since data transmitted from the mobile station MS to the electronic bank server EBS is encrypted, eavesdropping by a third party is prevented.
- the “certificate authority signature verification certificate” is a public key certificate used to verify the digital signatures given to various certificates by the certificate authority server CA. This ensures the reliability of the certificate issued by the CA server CA.
- “User ID” is identification information for identifying the user of the mobile station MS.
- the electronic value information includes “electronic bank ID”, “electronic wallet type”, “electronic account number”, “electronic bank signature S GN 1”, and “electronic value of electronic account”. Amount “,” Electronic Value of UIM “,” Time Stamp at Update of Electronic Value “,” Electronic Bank Signature SGN2 “,” Current Electronic Value “,” Electronic Value Update History ".
- the “e-wallet type” is information indicating whether the e-wallet that stores the e-Paray information is UIM 1 or a prepaid card PC. "Electronic account number" is as described above.
- the “electronic bank signature SGN1” is an electronic signature given by the electronic bank server EBS to guarantee that the “electronic bank ID”, “electronic wallet type” and “electronic account number” have not been tampered with.
- the “electronic value of the electronic account” is the balance of the electronic value in the electronic account when the mobile station MS last accessed the electronic bank server EBS.
- the “UIM electronic value amount” is the balance of the electronic pareille in UIM 1 when the mobile station MS last accessed the electronic bank server EBS.
- the “time stamp at the time of updating the electronic value amount” is information indicating the date and time when one electronic value amount in UIM 1 was updated, and is issued by the electronic bank server EBS.
- “Electronic bank signature SGN 2” includes the above “Electronic bank ID”, “Electronic wallet type” and “Electronic account number”, “Electronic value of electronic account”, “Eurovalue of UIM”, and “Electronic value of UIM” All of the “time stamps when updating the value amount” are electronic signatures given by the electronic bank server EBS to ensure that they have not been tampered with.
- “Current electronic value amount” is the electronic value balance currently stored by UIM1.
- the “update history of electronic value” is the update history of “electronic value of UIM” from the time when the mobile station MS last accessed the electronic bank server EBS to the present.
- FIG. 9 is a diagram showing the detailed contents of the “electronic value update history”.
- “Electronic Value Update History” includes “Receiver Electronic Account Number”, “Payer Electronic Account Number”, “Payer Prepaid Card ID”, “Transaction Amount”, and Signature ".
- the “receiving electronic account number” is the “electronic account number” of the user who received the electronic value at the time of the transaction
- the “paying electronic account number” is the “electronic account number” of the user who paid the electronic value at the time of the transaction. Account number ".
- the payment The “paid card ID” is registered as the update history.
- the “transaction amount” is the amount of electronic pariyu to be traded
- the “party electronic signature” is the “receiving electronic account number”, “paying electronic account number”, “paying prepaid card ID”, “ This is an electronic signature given by the trading partner's mobile device MS to ensure that the transaction amount has not been tampered with.
- the mobile device MS After the transaction, the mobile device MS transmits the “electronic value update history” as described above to the electronic bank server EBS.
- FIG. 10 is a diagram showing data stored in the prepaid card PC.
- the prepaid card PC includes an “e-bank signature verification certificate” and an “e-bank encryption certificate”. , "Certificate authority signature verification certificate”, and "electronic value information" are stored.
- the “signature private key” and the “decryption private key” stored in the UIMl are not stored in the prepaid card PC. This is different from the case of the mobile station MS. Since the prepaid card is transferable, the user possessing the prepaid card PC is recognized as the legitimate owner, so that impersonation by a third party is possible. This is because there is no need to carry out an electronic signature to prevent this from happening, nor is the data of the electronic parallax information sent to the prepaid card PC encrypted and sent.
- the electronic value information in the prepaid card PC includes “electronic bank ID”, “electronic wallet type”, “prepaid card ID”, “electronic bank signature SGN 3”, “electronic payment of prepaid card”, “electronic value”.
- Time stamp at the time of renewal "Electronic bank signature SGN 4", "Current e-value”, "E-value” Update history ".
- the difference between the electronic value information in the prepaid card PC and the electronic value information in UIM 1 is that the electronic value information in the prepaid card PC is used in place of UIM 1 and the ⁇ electronic value of the electronic account '' is stored. It's not there. That is, since the prepaid card PC is transferable between users, it does not have a fixed correspondence with the user's electronic account unlike the UIM 1 of the mobile station MS. Therefore, the prepaid card PC does not store the electronic value in the electronic account.
- the “electronic value update history” shown in Fig. 11 is the same as the “electronic value update history” in UIM l shown in Fig. 9 except that the electronic value information is not in the UIM but in the prepaid card. Description is omitted because it is information
- FIG. 12 is a sequence diagram showing the operation of the entire system when opening an electronic account.
- the user goes to the application office (not shown) where the application office server RA is set up, and the information necessary to open an electronic account, for example, name, address, password, mobile phone MS telephone Notify the operator of the number, the account number of the bank account for applying the electronic value to its own electronic account, etc.
- the operator enters this information into the application agency server RA.
- the application bureau server RA transmits the input information to the electronic bank server EBS, and requests the establishment of an electronic account (step SZ1).
- the electronic banking server EBS queries the banking system BS for the presence or absence of the user's bank account and the ability to pay, and if these are confirmed, establishes an electronic account temporarily (step SZ 2). At this point, an “electronic account number” is issued and the expiration date for this electronic account is set.
- the electronic bank server EBS sends the “electronic account number” and the expiration date of the electronic account to the application station server RA (step SZ3).
- the application server RA Upon receiving the “electronic account number” and the expiration date of the electronic account, the application server RA generates a key pair corresponding to the user (that is, a pair of a private key and a public key).
- the key pair includes an electronic signature of data to be transmitted from the mobile station MS to the electronic bank server EBS and a key pair for verification thereof, and a cipher of data to be transmitted from the electronic bank server EBS to the mobile station MS.
- the expiration date of this key pair is the same as the expiration date of the electronic account number.
- the application server RA sends the public key for verifying the electronic signature of the created key pair and the public key for encryption to the certificate authority server CA together with the “electronic account number”, Request to issue public key certificates for these keys (step SZ4).
- the certificate authority server CA issues public key certificates for digital signature verification and encryption, and registers them in the directory server DS in association with the “electronic account number” (step S Z5).
- the electronic bank server EBS accesses the directory server DS and performs a search based on the “electronic account number” to confirm that the public key certificate for electronic signature verification and encryption has been registered ( Step SZ 6). At this point, preparations for secure communication between the electronic bank server EBS and the mobile device MS are complete.
- the electronic bank server EBS designates the “electronic account number” and notifies the application server RA that the electronic account indicated by the account number has been opened (step S Z7).
- the application authority server RA accesses the directory server DS, and stores the “electronic bank signature verification certificate”, “electronic bank encryption certificate”, and “certificate authority signature verification” stored in advance in the directory server DS. Certificate (step SZ 8). Then, the application station server RA transmits “signature secret, decryption private key”, “electronic bank signature verification certificate”, “electronic bank encryption certificate”, “ Write “Certificate Authority Signature Verification Certificate”, “Electronic Bank ID” and “Electronic Account Number” to UI Ml. The user receives the UIM 1 on which this information has been written, attaches it to the mobile device MS, and ends the series of processing (step SZ 9) (2) Continuation of the electronic account
- the user can continue to use the electronic account established as described above.
- the payment methods for this account management fee include the following.
- a 1 An electronic bank withdraws an electronic value equivalent to an account management fee from a user's electronic account.
- (B1) The electronic bank debits an amount equivalent to an account management fee from the user's actual bank account.
- the keys in UIM1 are updated periodically. This is because, in a system that uses a key based on a public key encryption algorithm, it is common to set an expiration date and periodically update the key in order to ensure the security of the key. It is.
- (D2) Generate a new key in UIM1 and request the CA server CA to issue a public key certificate online.
- U I Ml an example of updating U I Ml will be described with reference to the sequence shown in FIG.
- the account management fee is deducted from the electronic account and the electronic value is paid to the electronic bank server EBS ((A1) above), and the secret key of the new key pair generated by the certificate authority server CA is used.
- the method of downloading the key to the mobile station MS ((C2) above) has been selected.
- the electronic bank server EBS notifies the user who wishes to continue using the electronic account of the date and amount of the debit of the account management fee in advance. Then, when the due date comes, the electronic bank server EBS withdraws the electronic value from the user's electronic account as an account management fee for the next term (step S1).
- the electronic bank server EBS applies the electronic signature to the user's "electronic account number", encrypts it, notifies the CA server CA, re-issues the key pair, and downloads the private key to the user.
- Request for permission and issuance of a public key certificate (Step S2)
- the certificate authority server CA decrypts and verifies the electronic signature and confirms that the request is from the correct electronic bank server EBS After that, a key pair is generated, and a certificate of the generated public key is issued.
- the issued public key certificate is registered in the directory server DS (step S3).
- the electronic bank server EBS accesses the directory server DS and confirms that a new public key certificate has been issued (step S4), the electronic bank server EBS manages the account of the mobile terminal MS of the user who continues to use the account. Notification that the fee has been received and that the private key is ready to be downloaded (step S5).
- the mobile station MS When the mobile station MS receives a notification from the electronic bank server EBS that is ready to download the private key, the mobile station MS displays this notification, and then sends a new private key to the certificate authority server CA in response to a user operation. Request download (step S6). Upon receiving a download request from the mobile station MS, the certificate authority server CA The new private key is encrypted with the user's old (currently valid) public key for encryption, and a digital signature is sent to the mobile station MS (step S7).
- the mobile station MS verifies the electronic signature applied to the new private key received from the certificate authority server CA, and confirms that the mobile station MS has certainly sent the correct certificate authority server CA.
- the secret key sent from the certificate authority server CA is decrypted by using the currently valid “decryption private key” (step S8).
- the mobile station MS replaces the old secret key in the UIM 1 with the new secret key (step S9). Then, the mobile station MS signs a message to the effect that the secret key has been successfully replaced with a new “signature private key” and sends it to the certificate authority server CA (step S10).
- the certificate authority server CA upon receiving the message indicating that the private key has been successfully replaced, registers the public key corresponding to the old private key in the CRL of the directory server DS (step S11). This makes the public key for the old private key unusable.
- the user operates the keypad of the mobile device MS to select whether to use the electronic parallax in the prepaid card PC or the electronic value in the UIM 1 built in the mobile device MS. Enter the amount you want to withdraw from or deposit in your electronic account.
- UIMl is selected as the electronic wallet and a withdrawal amount of 100 yen is entered.
- the mobile station MS accepts the above key operation (step Sa1).
- the mobile station MS encrypts the information entered in step S a 1 and the electronic value information in UIM 1 using the ⁇ certificate for encryption for electronic banks '' stored in UIM l. Later, an electronic signature is given using the “signature private key” and further After adding a time stamp, this is sent to the electronic bank server EBS as a request signal (step Sa2).
- the electronic bank server EBS Upon receiving the request signal, the electronic bank server EBS obtains a public key certificate for verifying the electronic signature from the directory server DS using the “electronic account number” in the received electronic value information as a clue, and uses this. Then, the validity of the electronic signature of the mobile station MS is verified (step Sa3).
- the electronic bank server EBS decrypts the ciphertext received in step Sa2 using the "decryption secret key" stored therein, and further confirms the time stamp (step Sa4).
- the confirmation of the time stamp is a process of confirming whether or not the inconvenience that two or more request signals with the same time stamp have been received from the same user in duplicate has occurred. By performing this process, illegal retransmission of the request signal can be prevented.
- the electronic bank server EBS checks the specified withdrawal amount or deposit amount, and calculates “the electronic value amount of the UIM” and the “electronic value amount of the electronic account” after withdrawal or deposit (step S a Five) .
- the “UIM electronic value” after withdrawal is 100 yen
- the “electronic value of electronic account” is 900 yen.
- the electronic bank server EBS obtains a public key certificate for encryption from the directory server DS using the “electronic account number” as a key (step Sa6).
- the electronic bank server EBS acquires, from the directory server DS, the calculated value in step Sa5, as well as the “electronic account number”, the user name, the transaction type indicating the withdrawal or deposit, and the transaction amount.
- the encryption is performed using the public key certificate for encryption (step Sa7).
- the electronic bank server EBS applies an electronic signature to the above ciphertext using the “signing secret key” stored therein, attaches a time stamp to the ciphertext, and transmits it to the mobile station MS. (Step Sa8).
- the mobile station MS verifies the digital signature of the received data, decrypts the ciphertext, Confirm the time stamp (step Sa 9).
- the mobile device MS displays the “UIM electronic value amount” and the “electronic value of the electronic account” after withdrawal or deposit (step S al0).
- “UIM electronic value” is 100 yen
- “one electronic value of electronic account” is 900 yen.
- the user visually confirms this, and performs an OK or NG key operation indicating whether or not the request matches the user's own request.
- the mobile station MS updates the electronic value information stored in the UIML (step Sail).
- the “electronic value of electronic account” shown in Figure 8 is updated from 1,000 yen to 900 yen
- the “electronic value of UIM” is updated from 0 yen to 100 yen
- the “current electronic value” is changed.
- the received time stamp and electronic signature are stored as the “time stamp when updating the electronic value amount” and “electronic bank signature S GN2J,” respectively.
- the mobile station MS creates a message indicating that the OK key operation has been performed, and encrypts this message using the “encryption certificate for the electronic bank” in the same manner as in step Sa2.
- the digital signature is sent to the electronic bank server EBS after performing a process of attaching a digital signature using the “signature private key” and a time stamp (step Sa12).
- the electronic bank server EBS when receiving the above message, acquires the “digital signature verification certificate” from the directory server DS as in step Sa3, and uses it. To verify the validity of the electronic signature (step Sa13). Further, the electronic bank server EBS decrypts the ciphertext using the “decryption secret key” and confirms the time stamp in the same manner as in step Sa4 (step Sal4).
- step Sal5 when the electronic bank server EBS confirms the message indicating OK, it updates the electronic value management information shown in FIG. 4 (step Sal5).
- E-value of electronic account is updated from ⁇ 100 to ⁇ 900
- E-value of UIM is updated from ⁇ 0 to ⁇ 100
- the current e-value of electronic account is updated.
- UIM's current electronic After updating the user amount from 0 yen to 100 yen, a time stamp at this point is issued and stored as the “time stamp when updating the electronic value amount” and the “time stamp when updating the current electronic value one amount” .
- the electronic bank server EBS sends a message to the effect that the transaction has been completed to the mobile station MS (step Sal6).
- the mobile station MS displays the received message (step Sal7), and the series of processing ends.
- step Sa10 if the key operation in step Sa10 is NG, the mobile station MS does not update the electronic value information in the UIM1. Then, in step Sa12, a message indicating NG is created and transmitted to the electronic bank server EBS.
- the electronic bank server EBS when receiving the NG message, the electronic bank server EBS ends the process without updating the electronic value management information in step Sal3.
- the electronic bank server EBS stores logs related to the above processing together with the electronic signature of the mobile station MS. This will be used later to deal with a complaint from the user of the mobile station MS, for example, stating that “OK should have been entered as a confirmation result”.
- the electronic bank server EBS will inform the user that the transaction has not been completed.
- An incomplete message is created, the message and the electronic value value in UIM 1 before the transaction are encrypted, electronically signed, a time stamp is added, and the message is transmitted to the mobile station MS.
- the mobile device MS when the mobile device MS receives the incomplete message from the electronic bank server EBS, the mobile device MS displays the message, and transmits the “UIM electronic value amount” before the transaction sent together with the incomplete message. Replaced with “UIM electronic value amount”. If the mobile station MS cannot receive either the completion message or the incomplete message due to, for example, a long-term communication interruption, the mobile station MS displays a message indicating that the transaction is not completed on the display unit. indicate. After recovery from communication interruption, etc., the user operates the mobile station MS to connect to the electronic bank server EBS for communication, and updates the updated electronic bank. Acquire renewal information and update its own electronic value information.
- the electronic value in the UIM 1 of the mobile station MS has been described as an example.However, when depositing the electronic value in the prepaid card PC into an electronic account, the prepaid card PC performs infrared communication. Thus, the same processing as described above may be performed via the mobile station MS.
- the mobile station MS can exchange the electronic value by local communication means such as infrared communication, which does not intervene the electronic bank server EBS.
- the mobile device MS 1 sends the “electronic bank ID”, “electronic wallet type”, “ A request signal requesting the “electronic account number” and the “electronic bank signature SGN 1” for them is transmitted by infrared communication (step S bl).
- the mobile station MS2 of the user B Upon receiving the request signal, the mobile station MS2 of the user B reads the requested electronic value information from its own UIMl and transmits the electronic value information to the mobile station MS1 by infrared communication (step Sb2). .
- the mobile device MSI verifies the “electronic bank signature S GN 1J” in the received electronic value information and confirms that the user B is a valid owner of the electronic value issued by the electronic bank server EBS ( Step S b 3) If not confirmed, terminate the process.
- the user A enters the electronic value amount of 100 yen to be paid to the user B and the “electronic wallet type” (here, UI M1), and then performs a key operation for instructing payment. .
- the mobile device MS 1 receives this key operation (step Sb4).
- the mobile device MS 1 receives the “electronic account number” of the user B, the “electronic account number” and the “transaction amount” of the user A (here, the electronic value amount paid from the mobile device MS 1 to the mobile device MS 2). 100 yen) as an information set, and The electronic signature of The A is given and transmitted to the mobile station MS 2 as “electronic value information paid by User A”.
- the mobile station MS 1 uses the “electronic bank ID”, “electronic wallet type”, “electronic account number” of user A in the electronic value information stored in the mobile station MS 1 and “electronic bank signature S GN” for these. 1 ”is also transmitted (step Sb5).
- the mobile device MS 2 verifies the received “electronic bank signature S GN 1” and confirms that the user A is a valid owner of the electronic value issued by the electronic bank server EBS (step S b 6 ). If it cannot be confirmed, the process ends.
- mobile station MS 2 verifies the electronic signature of user A applied to the received information set (step Sb 7). This prevents a third party from impersonating the mobile station MS1 of the user A.
- the mobile station MS 2 displays information of the received “electronic value information paid by A” excluding the electronic signature of the user A (step S b8). That is, here, the “electronic account number” of the user B, the “electronic account number” of the user A, and the “transaction amount” of 100 yen are displayed.
- User B refers to this display and determines that there is no problem, and inputs an instruction to the effect that it is OK to mobile device MS 2.
- the user B determines that there is any problem, the user B inputs an instruction indicating NG to the mobile MS 2.
- the mobile station MS2 notifies the mobile station MS1 of the NG and ends the processing.
- the mobile device MS 2 compares the “current electronic value of UIM” in the electronic value information stored in its own UIM 1 with an electronic value of 100 yen corresponding to “transaction amount”. And an update history is added to the “electronic value update history” based on the “electronic value information paid by A” received from the mobile station MS 1 (step Sb 9).
- the mobile device MS 2 transmits the information except for the electronic signature of the user A in the “electronic value information paid by A”, that is, the “electronic account number” of the user B, the “electronic account number” of the user A, and the “ The user B's electronic signature is applied to the transaction amount of 100 yen, Is transmitted to the mobile station MS 1 as “electronic value information received” (step Sb 10).
- mobile station MSI Upon receiving the "electronic value information received by user B", mobile station MSI verifies the electronic signature of user B applied to this (step Sb11).
- the mobile device MSI reduces the electronic value corresponding to the “transaction amount” by 100 yen from “the current electronic value value of the UIM” in the electronic pariyu information stored in its own UIM 1. Then, an update history is added to the “electronic value update history” based on the “electronic value information received by user B” (step Sb12).
- the mobile device MS 2 of the user B who has received the payment of the electronic value needs to communicate with the electronic bank server EBS after completing the processing shown in FIG. It is started when.
- the mobile device MS 2 reads the “electronic value update history” from its own UI Ml, sends it to the electronic bank server EBS, and requests to confirm the validity of the transaction (step S c 1).
- the electronic bank server EBS server refers to the “electronic value update history” received from the mobile device MS 2 and refers to the “e-signature of the counterparty” in the “electronic value update history”, in this case, the user A's Verify the electronic signature. If there is no problem as a result of this verification, the following electronic value management information is changed (step Sc2).
- 100 yen is added to “the electronic value of UIM” and the “time stamp when updating the electronic value” is updated. Add 100 yen to “Current electronic value of UIM” and update “Timestamp when updating current electronic value”.
- the electronic parallax management information corresponding to the user A who is the payment side of the electronic value the "current electronic value of UIM" is reduced by ⁇ 100 and the "time stamp for updating the current electronic value” is updated. Perform the following processing. If there is any problem with the verification result of the "e-signer's electronic signature", the electronic bank server EBS creates a message indicating that it could not be updated due to the problem and notifies the administrator of the electronic bank server EBS I do.
- the electronic bank server EBS transmits electronic value information to be updated to the mobile device MS2 based on the electronic value management information updated in step Sc2 (step Sc3).
- the electronic value information transmitted here is “UIM electronic value amount”, “electronic value amount update time stamp”, and “electronic bank signature S GN 2”.
- the mobile device MS2 updates the electronic value information in its own UIM1 according to the electronic value information received from the electronic bank server EBS (step Sc4).
- the mobile station MS receives its electronic value information from the electronic bank server EBS when communicating with the electronic bank server EBS in a process that occurs later.
- the electronic bank server EBS when the electronic bank server EBS receives access from the mobile device MS1, the electronic bank server EBS, among the “electronic value management information” corresponding to the user A, “the current electronic value of the UIM” and “the electronic value of the UIM” Amount ". If they are different, update the electronic value management information.
- the content of the update here is to match the “UIM electronic value” with “the current electronic value of UIM” and to update the “time stamp when updating the electronic value”.
- the electronic bank server EBS transmits to the mobile station MS 1 the electronic parallax information to be updated in accordance with the update content of the electronic value management information described above. That is, the “UIM electronic value amount”, the “electronic value amount update time stamp”, and the “electronic bank signature S GN 2” are transmitted.
- the mobile device MS 1 verifies the “electronic bank signature S GN 2” of the electronic value information received from the electronic bank server EBS, and if there is no problem, the electronic value in the UIM l.
- One information is updated (step Sb20).
- the transaction is guaranteed by the electronic bank server EBS, and a series of processing is completed.
- the present invention is not limited to this, and it may be considered that the processing is completed only by being notified of the “electronic value update history” of one of the electronic wallets.
- the processing was completed by notifying the electronic bank server EBS of the update history of the party who paid the electronic palyu instead of the update history of the side that received the electronic value. Can be considered.
- UIM1 of the mobile device MS has been described as an example of the electronic wallet on the payment side, but an electronic value in the prepaid card PC may be used.
- the prepaid card PC may perform the same processing as described above via the mobile device MS by performing infrared communication with the mobile device MS.
- Electronic Valuables can be transferred to another person in the form of a transfer from their e-wallet or e-account to another person's e-account.
- the user operates the mobile station MS to select a source of electronic value to be transferred (hereinafter, a source of transfer). Specifically, there are three choices: the prepaid card PC, the UIM 1 in the mobile device MS, and the user's own electronic account. Here, it is assumed that UIM 1 has been selected. .
- the user inputs the "electronic account number" of the transfer destination (hereinafter referred to as the transfer destination electronic account number) and the amount to be transferred (hereinafter referred to as the transfer amount).
- the mobile station MS accepts the input operation as described above (step Sd1).
- the mobile station MS attaches a time stamp to the input information, Encrypt with the public key for the electronic bank server, and send the digitally signed data using the “secret key for signature” to the electronic bank server EBS as a request signal for transfer (step S d 2)
- the mobile station MS performs infrared communication with the prepaid card PC to obtain the electronic value information in the prepaid card PC. Is also sent to the electronic bank server EBS at the same time.
- the electronic bank server EBS verifies the electronic signature of the received data, decrypts the ciphertext, and confirms the time stamp to confirm the validity of the electronic value information (Step S). d 3).
- the electronic bank server EBS confirms that the specified transfer destination electronic account exists or is in the open state, and that the balance of the transfer source electronic value is equal to or greater than the specified transfer amount. Confirm (step S d 4).
- the e-bank server EBS verifies the “electronic bank signature S GN4” and the electronic value information of the transfer source (prepaid card PC) is illegally rewritten. After confirming that the payment is not made, confirm that the transfer is possible.
- the electronic bank server EBS calculates the electronic value of the transfer source (here, UIM1) after the transfer. Then, “Electronic bank ID”, transfer destination electronic account number, user name of transfer destination electronic account, transfer amount, “electronic account number” of transfer source user, electronic value of transfer source (UI M1) before and after transfer To the mobile station MS by attaching a timestamp to the data, encrypting it with the public key for encryption obtained from the directory server DS, applying a digital signature using the “signature private key” stored by itself, and transmitting it to the mobile station MS. (Step S d 5).
- the mobile station MS verifies the digital signature of the received data, decrypts the ciphertext, and confirms the time stamp to confirm that there is no fraud (Step Sd6).
- the mobile station MS displays the received data.
- the mobile station MS accepts this. (Step S d 7).
- the electronic value information stored in the UIM 1 selected as the transfer source is updated.
- the updated electronic value information is “UIM electronic value amount”, “time stamp when updating the electronic value amount”, “electronic bank signature SGN2”, and “current electronic value amount”. If an electronic account is selected as the transfer source, the information in the electronic wallet will not be updated.
- the mobile station MS creates a message indicating whether the received input operation is OK or NG, attaches a time stamp to this message, encrypts the message using a public key for encryption for electronic banks, and The digital signature is performed using the “signature private key” and transmitted to the electronic bank server EBS (step Sd8).
- the transfer destination calculates the electronic value in the electronic account, applies the electronic signature to the electronic bank server EBS, and transfers It is stored as electronic value management information corresponding to the electronic account (step Sd9).
- the electronic paruyu amount in the transfer source electronic account is calculated, and the calculated value is electronically signed by the electronic bank server EBS and stored as electronic value management information.
- the electronic bank server EBS sends a message to the effect that processing has been completed to the mobile station MS (step Sd10).
- the mobile station MS displays the received message to notify the user that the series of exchanges has been completed.
- step Sd8 if the electronic bank server EBS receives a message indicating NG, the process ends without updating the electronic value management information. However, the electronic bank server EBS stores the logs related to the above processing together with the electronic signature of the mobile station MS. This will be used later to deal with a complaint from the user of the mobile station MS, such as "it should have entered OK as a confirmation result".
- step Sd8 if the above processing is not completed because the electronic bank server EBS cannot receive the message from the mobile station MS, the electronic bank server EBS sends the message to the mobile station MS.
- the incomplete message indicating that the transaction was not completed and the ⁇ UIM electronic value amount '' before the transaction are encrypted and electronically signed and a time stamp is attached, as in step Sa8. Send to mobile station MS.
- the mobile device MS when the mobile device MS receives the incomplete message from the electronic bank server EBS, the mobile device MS displays the message and sends the “UIM electronic value amount” to the “UIM before the transaction” sent together with the incomplete message. Of electronic value. If the mobile station MS cannot receive either the completion message or the incomplete message due to, for example, a long-term communication interruption, the mobile station MS displays a message indicating that the transaction is not completed on the display unit. indicate. After recovering from communication interruption or the like, the user operates the mobile station MS to connect to the electronic bank server EBS for communication, obtains updated electronic value information, and updates his own electronic value information.
- the electronic value in the UIM 1 of the mobile station MS has been described as an example.However, when transferring from the electronic value in the prepaid card PC, the prepaid card PC performs infrared communication. The same processing as described above may be performed via the mobile device MS.
- an electronic wallet equivalent to the UI Ml of the mobile device MS is incorporated in a vending machine or a POS (Point Of Sale) cash register, and the mobile device MS (or prepaid) of the customer (that is, a user of the vending machine etc.)
- the electronic value can be exchanged between electronic wallets through low-power communication between the card PC) and the vending machine, and products can be sold without cash.
- the validity of the electronic bank signature SGN1 can be confirmed by verifying the electronic bank signature SGN1 when exchanging electronic value with the mobile device MS. Check the validity of electronic value information No need to do. Therefore, there is a merit that customers can purchase products quickly, and a merchant such as a vending machine has a merit that communication costs with a server can be reduced.
- the vending machine VM is wired or wirelessly connected to a vending machine server VS connected to a mobile communication network.
- the vending machine VM has a function of performing infrared communication with the mobile station MS, a function of applying a digital signature to data transmitted to the mobile station MS, and a function of “electronic banking station name SGN 1” transmitted from the mobile station MS. A function for verifying is installed.
- the customer's mobile machine MS 1 receives the vending machine's “electronic account number” using infrared communication with the vending machine VM.
- the customer inputs the electronic value amount to be paid to the vending machine VM and the “e-wallet type” to the mobile device MS, and then performs an operation for indicating a payment instruction.
- the mobile station MS accepts this input operation.
- the mobile device MS sets the information of the “electronic account number” of the vending machine operator, the “electronic account number” of the customer, and the amount of electronic payment to be paid, and applies the electronic signature of the customer to the “payment by the customer” It is transmitted to the vending machine VM via infrared communication as “electronic value information”. Also, out of the electronic value information stored in the customer's electronic wallet,
- the information set of “electronic bank server ID”, “electronic wallet type”, “electronic account number” and the corresponding “electronic bank signature S GN 1” is also transmitted to the vending machine VM at the same time.
- the vending machine VM verifies the received “electronic bank signature S GN 1” and confirms that the customer is the owner of the electronic value issued by the correct electronic bank server EBS. If the authentication of the digital signature fails, the process with the customer is stopped and the received information is logged as having the possibility of unauthorized access.
- the vending machine VM should be paid by the customer Confirm that the price information corresponding to the electronic value is equal to or more than the product price. If the amount is insufficient, the vending machine VM stops the processing related to the mobile station MS and returns a message to the effect that the amount is insufficient to the mobile station MS.
- the vending machine VM updates the received electronic account number of the vending machine, the electronic account number of the customer, the electronic value to be paid, and the electronic signature of the customer by updating the electronic value. Log as "history”.
- the vending machine VM creates a message indicating that the commodity price has been received, applies an electronic signature to the message, and returns it to the mobile station MS.
- the payment of the goods to the customer's vending machine VM is completed, and the customer can push down the button for selecting the product of the vending machine VM, and the customer pushes down the button and receives the goods.
- the delivery is completed.
- the mobile device MS updates the electronic parallax information in the UIM 1 based on the message received from the vending machine VM. Specifically, the price of the paid product is subtracted from “Current Electronic Value One Price”, and “Electronic Value Update History” contains the vending machine's “electronic account number”, customer's “electronic account number”, Add the value and the digital signature of the vending machine VM.
- the logs accumulated in the vending machine VM are periodically collected by the vending machine server VS and sent to the electronic bank server EBS.
- the electronic bank server EBS server verifies the payer's electronic signature against the “electronic value update history” received from the vending machine server VS, and changes the following management information.
- the electronic bank server EBS creates a message that the electronic value information could not be updated because the authentication failed, and notifies the administrator of the electronic bank server EBS. .
- the electronic bank server EBS updates the electronic value management information of the electronic account of the vending machine VM vendor. That is, the “electronic value amount of the electronic account” is added, the “time stamp when updating the electronic value amount” of the electronic account is updated, and transmitted to the vending machine server VS. If the electronic authentication fails, the above-mentioned message is also transmitted to the vending machine server VS.
- the vending machine server V S notifies the administrator of the vending machine server V S of this by displaying a message received from the electronic bank server E B S. If the administrator receives a message indicating that it could not be updated due to authentication failure, the administrator analyzes the content of the message, and if the transaction is deemed fraudulent, takes action such as taking legal action. do.
- the electronic value information in the customer's electronic wallet is updated by the same procedure as the above-mentioned exchange between electronic wallets when the customer later accesses the electronic bank server EBS, and a series of processing is completed.
- the electronic bank server EBS manages the electronic value of both the electronic account and the electronic wallet, the electronic wallet detects that the electronic value has been illegally rewritten. be able to.
- the e-bank server EBS updates the e-value management information that it manages by notifying from at least one of the e-wallets, thereby improving the efficiency.
- the mobile station MS may be a mobile terminal having a built-in wireless communication function.
- a personal combination user or a PDA (Personal Digital Assistants) that performs data communication by connecting to a mobile phone is used. There may be.
- the mobile device MS, the prepaid card PC, and the vending machine VS perform wireless communication with each other using infrared rays.
- the present invention is not limited thereto, and wired communication may be used.
- the mobile station 50 generally has a 16-core connector for inputting / outputting a serial signal, but the same thing is also provided on the prepaid card PC or the vending machine VS side. Data communication may be performed by connecting a cable to the PC.
- the electronic bank server EBS is installed on the mobile communication network MN, and the application server RA, the certificate server CA and the directory server DS are installed on the Internet INET.
- the present invention is not limited to this, and each server may be on any network.
- the application station server RA generates a user key pair and writes the key pair in the UI Ml.
- the present invention is not limited to this.
- it may be created at the UIM 1 manufacturing factory and written in advance, or may be created by a key pair generation function mounted on the UIM 1.
- a form such as requesting an authority such as a certificate authority server CA to generate a key pair and downloading the key pair may be employed.
- the aforementioned electronic wallet such as UIM 1 or prepaid card PC cannot store all the “Electronic Value Update History” due to insufficient storage capacity, or a storage device for “Electronic Value Update History” due to system trouble. May have failed. In such a case, it is assumed that the “electronic value update history” will be lost. In addition, a malicious user may lose part of the electronic value update information by deleting only the “electronic value update history” that he / she paid.
- the payment value and the receiving side can be updated to the correct electronic value. I have.
- the electronic bank server EBS cannot grasp the exchange of electronic value.
- the electronic bank server performs processing to match the “electronic value of the electronic wallet” managed by the EBS. That is, the electronic value information on the electronic wallet and the electronic paryu information on the electronic bank are matched.
- the mobile station MS detects that it has accumulated the “electronic value update history” in an amount corresponding to the storage capacity of the electronic wallet. At the time of transaction using value, it is also possible to delete the “electronic Pari-yu update history” from the oldest transaction date and time.
- the mobile device MS when detecting that the mobile device MS has accumulated the amount of “electronic value update history” corresponding to the storage capacity of the electronic wallet, the mobile device MS forcibly stores the “electronic value update history”. It may be transmitted to the electronic bank server EBS. As a result, the electronic value information on the electronic wallet is matched with the electronic value information on the electronic bank.
- the mobile device MS may not perform the transaction using the electronic value thereafter.
- the mobile station MS performs processing such as displaying the fact on the display unit and notifying the user.
- the local communication means between the mobile device MS and the prepaid card PC is not limited to the infrared communication described above, and may be a different wireless communication means, for example, Bluetooth (registered trademark). Of course, wireless communication means other than infrared can also be used for the communication means between the mobile device MS and the vending machine VM.
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- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Strategic Management (AREA)
- General Business, Economics & Management (AREA)
- Finance (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01934413A EP1221669A4 (en) | 2000-05-31 | 2001-05-30 | ELECTRONIC VALUE SYSTEM |
KR1020027000336A KR20020039318A (ko) | 2000-05-31 | 2001-05-30 | 전자 화폐 시스템 |
AU60653/01A AU767786B2 (en) | 2000-05-31 | 2001-05-30 | Electronic value system |
US10/048,326 US7107247B2 (en) | 2000-05-31 | 2001-05-30 | Electronic value system |
AU2004200805A AU2004200805A1 (en) | 2000-05-31 | 2004-02-27 | Electronic value system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-163676 | 2000-05-31 | ||
JP2000163676A JP2001344537A (ja) | 2000-05-31 | 2000-05-31 | 電子バリューシステム、通信端末及びサーバ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001093139A1 true WO2001093139A1 (fr) | 2001-12-06 |
Family
ID=18667398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/004538 WO2001093139A1 (fr) | 2000-05-31 | 2001-05-30 | Systeme pour des valeurs electroniques |
Country Status (7)
Country | Link |
---|---|
US (1) | US7107247B2 (ja) |
EP (1) | EP1221669A4 (ja) |
JP (1) | JP2001344537A (ja) |
KR (1) | KR20020039318A (ja) |
CN (1) | CN1386237A (ja) |
AU (1) | AU767786B2 (ja) |
WO (1) | WO2001093139A1 (ja) |
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EP1550067A4 (en) * | 2002-05-02 | 2006-06-07 | Sungwoo Kim | METHOD AND SYSTEM FOR OPERATING THE TELECOMMUNICATION DEVICE FOR ELECTRONIC SILVER |
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US7416114B2 (en) | 2002-06-10 | 2008-08-26 | Ken Sakamura | Electronic value transfer device equipped with non-contact IC interface |
US8014755B2 (en) | 2007-01-05 | 2011-09-06 | Macronix International Co., Ltd. | System and method of managing contactless payment transactions using a mobile communication device as a stored value device |
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Also Published As
Publication number | Publication date |
---|---|
JP2001344537A (ja) | 2001-12-14 |
EP1221669A1 (en) | 2002-07-10 |
KR20020039318A (ko) | 2002-05-25 |
CN1386237A (zh) | 2002-12-18 |
AU767786B2 (en) | 2003-11-27 |
EP1221669A4 (en) | 2006-05-03 |
AU6065301A (en) | 2001-12-11 |
US20020116344A1 (en) | 2002-08-22 |
US7107247B2 (en) | 2006-09-12 |
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