WO2017074244A1 - Method for payment with a cash card - Google Patents

Method for payment with a cash card Download PDF

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Publication number
WO2017074244A1
WO2017074244A1 PCT/SE2016/051023 SE2016051023W WO2017074244A1 WO 2017074244 A1 WO2017074244 A1 WO 2017074244A1 SE 2016051023 W SE2016051023 W SE 2016051023W WO 2017074244 A1 WO2017074244 A1 WO 2017074244A1
Authority
WO
WIPO (PCT)
Prior art keywords
cash card
caused
payment
amount
payment terminal
Prior art date
Application number
PCT/SE2016/051023
Other languages
French (fr)
Inventor
Jan VESTLUND
Peter THORANDER
Rolf Norberg
Johan ANSTRELL
Mikael Aronowitsch
Anders Holmlund
Original Assignee
Id Loop Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Id Loop Ab filed Critical Id Loop Ab
Priority to US15/770,533 priority Critical patent/US11461758B2/en
Priority to FIEP16860383.5T priority patent/FI3369062T3/en
Priority to EP16860383.5A priority patent/EP3369062B1/en
Priority to DK16860383.5T priority patent/DK3369062T3/en
Priority to ES16860383T priority patent/ES2930849T3/en
Publication of WO2017074244A1 publication Critical patent/WO2017074244A1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • 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
    • G06Q20/22—Payment schemes or models
    • G06Q20/26—Debit schemes, e.g. "pay now"
    • 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
    • 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
    • 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
    • G06Q20/08—Payment architectures
    • G06Q20/085—Payment architectures involving remote charge determination or related payment systems
    • 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
    • G06Q20/08—Payment architectures
    • G06Q20/085—Payment architectures involving remote charge determination or related payment systems
    • G06Q20/0855—Payment architectures involving remote charge determination or related payment systems involving a third party
    • 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
    • G06Q20/08—Payment architectures
    • G06Q20/20—Point-of-sale [POS] network systems
    • 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
    • G06Q20/08—Payment architectures
    • G06Q20/20—Point-of-sale [POS] network systems
    • G06Q20/203—Inventory monitoring
    • 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]
    • G06Q20/3223—Realising banking transactions through M-devices
    • 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]
    • G06Q20/3227—Aspects of commerce using mobile devices [M-devices] using secure elements embedded in M-devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G06Q20/341—Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G06Q20/342—Cards defining paid or billed services or quantities
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/34—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using cards, e.g. integrated circuit [IC] cards or magnetic cards
    • G06Q20/343—Cards including a counter
    • G06Q20/3433—Cards including a counter the counter having monetary units
    • G—PHYSICS
    • 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
    • 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
    • G06Q20/383—Anonymous user system
    • 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
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/02—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by keys or other credit registering devices
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0442—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/10—Integrity
    • 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
    • G06Q2220/00—Business processing using cryptography
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/60—Context-dependent security
    • H04W12/69—Identity-dependent
    • H04W12/71—Hardware identity

Definitions

  • the present invention relates to a method for payment with a cash card in the form of a card, like a credit card, a mobile telephone or a tablet computer for payment in a payment sta ⁇ tion for debit and credit cards, or another corresponding carrier.
  • a cash card in the form of a card, like a credit card, a mobile telephone or a tablet computer for payment in a payment sta ⁇ tion for debit and credit cards, or another corresponding carrier.
  • cash cards Cash, bills and coins, is a practical and quick payment means, in particular for smaller money amounts.
  • cash also has drawbacks, use and circulation of cash require counting, usually several times during a cycle from central bank to bank to consumer to point of sale and back to bank and central bank.
  • the circulation of physical cash also re ⁇ quires costly transport, which in turn constitutes a risk exposure as larger volumes are handled, and facilitates rob ⁇ beries and robbery attempts.
  • the cards used in these systems do not keep any money, they only constitute an identifier for being able to authenticate (using a PIN code) a specific registered user who is to be debited and invoiced the transaction which at each time is requested.
  • the card emitting party pays money to the mer ⁇ chant, and periodically invoices the user, in case of a cred ⁇ it card, or debits the user's account, in case of a debit card connected to an own account.
  • checks are performed regarding availability of funds and whether the user pays his or her invoices, if the user respects the current credit limit and if the card is blocked. This takes a certain amount of time, requires communication online and of course is also associated with certain costs.
  • the system comprises three central components or devices. These devices are an emitting party, a so called trusted partner; a carrier device, which may be for instance a so called smartcard, or a mobile telephone which comprises a SIM card which actually is a smartcard, or anoth ⁇ er comparable device; and a device for receiving a payment, which may for example be a so called payment terminal or a POS (Point Of Sale) terminal which exists at almost all pay ⁇ ment locations today.
  • a so called trusted partner a so called smartcard, or a mobile telephone which comprises a SIM card which actually is a smartcard, or anoth ⁇ er comparable device
  • a device for receiving a payment which may for example be a so called payment terminal or a POS (Point Of Sale) terminal which exists at almost all pay ⁇ ment locations today.
  • POS Point Of Sale
  • the present invention relates to a method for cash card payment in a payment station for debit and credit cards, and is characterised in that the cash card comprises a pro ⁇ cessor and is caused to store a unique identity associated with a money amount, which exists at a money institution, such as a central bank, or which is caused to be transferred from a bank account or the corresponding, to the money insti ⁇ tution, in that the transferred amount is caused to be stored on the cash card, in that the amount lacks a connection to the proprietor of the cash card except via the said identity, in that, at payment using the cash card, the amount to be paid is caused to be transferred, together with the said identity, from the cash card to a payment terminal comprising the said payment station, in that the payment terminal is caused to store the paid amount together with the said iden- tity and that a remaining amount after payment is counted down on the cash card and is stored on the cash card, and in that the payment terminal is caused to activate the money institution to transfer, using the identity, the amount tot.
  • the invention relates to a method for cash card payment in a payment station for debit and credit cards.
  • the purpose is to, for a payment, replace physical cash, in the form of bills and coins, with virtual cash stored at a card corre- sponding to a debit or credit card.
  • the cash card 1 comprises a pro ⁇ cessor 2.
  • the cash card is caused to store a unique identity associated with an amount of money, which exists at a money institution 3, such as a central bank, or which is caused to be transferred from a bank account or the corresponding, to the money institution 3.
  • the amount is caused to be stored on the cash card 1, as is illustrated by arrow 4 in Figure 1.
  • the amount lacks any connection to the proprietor of the cash card, except via said identity, why the cash card as such is anonymous .
  • the cash card does not contain any information about the account number from which money is transferred to the money institution .
  • the identity may, among other things, be used to designate the money institution from which money was initially trans ⁇ ferred, or to which money institution money was transferred.
  • the amount to be paid is caused to be transferred, together with the said identity, from the cash card 1 to a payment terminal 5 con ⁇ nected to the said payment station.
  • the payment terminal with the payment station is suitably of the same type as conven ⁇ tional payment terminals for debit or credit cards.
  • the cash card communicates with the payment terminal.
  • the payment terminal is caused to store the paid amount to ⁇ gether with the said identity, and a remaining amount after the payment is counted down on the cash card and is stored on the cash card. Counting down may alternatively take place in the payment terminal .
  • the present invention can be adapted to function online or offline, even if the offline case is preferred. Thereafter, the payment terminal 5 is caused to contact, and thereby activate, the money institute 3 for transferring, using the identity, the amount which is paid using the cash card 1, as is illustrated by the arrow 6, to an account 7 belonging to the point of sale at which the payment terminal is located, which is illustrated by arrow 8.
  • the cash card 1 is caused to store a unique identity but also a secret cryptographic key which is associated with an amount of money, which exists at the money institution, or which is caused to be trans ⁇ ferred from a bank account or the corresponding, to the money institution 3.
  • the amount lacks any connection to the proprietor of the cash card 1, except for via the said identity.
  • the amount to be paid is transferred from the cash card to a payment termi- nal 5, which is illustrated by the broken arrow 9.
  • the pay ⁇ ment terminal 5 is caused to store the current amount togeth ⁇ er with the said calculated number. Thereafter, the payment terminal is caused to perform a cal ⁇ culation using the parameters that were used to perform the said calculation by the cash card processor, using the cash card's public cryptographic key.
  • the payment terminal is caused to store the current transaction and to activate the money institution 3, which is illustrated using the broken arrow 10, to reimburse, using the cash card 1 identity, the amount to be paid to an account 7 belonging to the point of sale at which the payment terminal 5 is located, which is illustrated using the broken arrow 11.
  • the amount on the cash card is caused to be counted down and to be stored after payment on the cash card 1.
  • the payment terminal 5 is caused to calculate a number based upon known parameters regarding the purchase and using a secret cryptographic key at the payment terminal.
  • the payment terminal 5 is caused to transfer the said parameters and the said number to the money institution, and the money institution is caused to perform a calculation using the same parameters and using the public cryptographic key of the payment terminal, and when there is a match the said transfer takes place to an account belonging to the point of sale. Since it is possible to carry through with a purchase using the cash card, this can be used to buy physical cash money at an automatic cash dispensing machine, such as an ATM.
  • the said unique identity can be emitted by the money institution.
  • the said unique iden- tity is caused to be emitted by the cash card emitter.
  • the said unique identity is stored on the cash card in encrypted form, and the money institution has a required decryption key.
  • the cash card is caused to be stored in the memory or chip of a mobile telephone, and the mobile telephone is caused to communicate with the said payment terminal during a payment.
  • transmission of money to the cash card is caused to take place via a cash dispensing machine, such as an ATM or a charging teller or a POS or a computer or a so called smartphone .
  • a cash dispensing machine such as an ATM or a charging teller or a POS or a computer or a so called smartphone .
  • the payment terminal is caused to verify that a sufficient amount is present on the cash card before the payment is effected.

Abstract

Method for cash card payment in a payment station for debit and credit cards. The invention is characterised in that the cash card (1) comprises a processor and is caused to store a unique identity associated with a money amount, which exists at a money institution (3), such as a central bank, or which is caused to be transferred from a bank account or the corresponding, to the money institution, in that the transferred amount is caused to be stored on the cash card (1), in that the amount lacks a connection to the proprietor of the cash card except via the said identity, in that, at payment using the cash card (1), the amount to be paid is caused to be transferred, together with the said identity, from the cash card (1) to a payment terminal (5) comprising the said payment station, in that the payment terminal (5) is caused to store the paid amount together with the said identity and that a remaining amount after payment is counted down on the cash card and is stored on the cash card, and in that the payment terminal (5) is caused to activate the money institution (3) to transfer, using the identity, the amount to be paid using the cash card (1) to an account (7) belonging to the point of sale where the payment terminal (5) is located.

Description

Method for payment with a cash card.
The present invention relates to a method for payment with a cash card in the form of a card, like a credit card, a mobile telephone or a tablet computer for payment in a payment sta¬ tion for debit and credit cards, or another corresponding carrier. In the following, such carriers are termed cash cards . Cash, bills and coins, is a practical and quick payment means, in particular for smaller money amounts. However, cash also has drawbacks, use and circulation of cash require counting, usually several times during a cycle from central bank to bank to consumer to point of sale and back to bank and central bank. The circulation of physical cash also re¬ quires costly transport, which in turn constitutes a risk exposure as larger volumes are handled, and facilitates rob¬ beries and robbery attempts. It is usually the central banks that administer and finance the manufacture and distribution of such cash. The end cus¬ tomer does not see these costs that are split between mer¬ chants and banks, including central banks. During the last several decades, debit and credit cards have come to replace cash for a large part of "larger" payments, and this trend is progressing downwards to smaller money amounts. The use of these cards is today cheaper than cash, as viewed from a societal perspective, but is also associated with costs for administration and risk (card fraud) . In this case, these costs are split between the end customer and the point of sale, while the card companies and the bank system usually gain from the system. Central banks are not affected. The cards used in these systems do not keep any money, they only constitute an identifier for being able to authenticate (using a PIN code) a specific registered user who is to be debited and invoiced the transaction which at each time is requested. The card emitting party pays money to the mer¬ chant, and periodically invoices the user, in case of a cred¬ it card, or debits the user's account, in case of a debit card connected to an own account. In order to maintain a certain security, at each transaction checks are performed regarding availability of funds and whether the user pays his or her invoices, if the user respects the current credit limit and if the card is blocked. This takes a certain amount of time, requires communication online and of course is also associated with certain costs.
The following is a description of a system, which mimics physical cash management but without physical cash in the form of bills and coins. The system comprises three central components or devices. These devices are an emitting party, a so called trusted partner; a carrier device, which may be for instance a so called smartcard, or a mobile telephone which comprises a SIM card which actually is a smartcard, or anoth¬ er comparable device; and a device for receiving a payment, which may for example be a so called payment terminal or a POS (Point Of Sale) terminal which exists at almost all pay¬ ment locations today.
Hence, the present invention relates to a method for cash card payment in a payment station for debit and credit cards, and is characterised in that the cash card comprises a pro¬ cessor and is caused to store a unique identity associated with a money amount, which exists at a money institution, such as a central bank, or which is caused to be transferred from a bank account or the corresponding, to the money insti¬ tution, in that the transferred amount is caused to be stored on the cash card, in that the amount lacks a connection to the proprietor of the cash card except via the said identity, in that, at payment using the cash card, the amount to be paid is caused to be transferred, together with the said identity, from the cash card to a payment terminal comprising the said payment station, in that the payment terminal is caused to store the paid amount together with the said iden- tity and that a remaining amount after payment is counted down on the cash card and is stored on the cash card, and in that the payment terminal is caused to activate the money institution to transfer, using the identity, the amount to be paid using the cash card to an account belonging to the point of sale where the payment terminal is located.
Below, the invention is described in closer detail, partly in connection to an exemplifying embodiment illustrated in Figure 1.
The invention relates to a method for cash card payment in a payment station for debit and credit cards. The purpose is to, for a payment, replace physical cash, in the form of bills and coins, with virtual cash stored at a card corre- sponding to a debit or credit card.
According to the invention, the cash card 1 comprises a pro¬ cessor 2. The cash card is caused to store a unique identity associated with an amount of money, which exists at a money institution 3, such as a central bank, or which is caused to be transferred from a bank account or the corresponding, to the money institution 3. The amount is caused to be stored on the cash card 1, as is illustrated by arrow 4 in Figure 1. The amount lacks any connection to the proprietor of the cash card, except via said identity, why the cash card as such is anonymous . The cash card does not contain any information about the account number from which money is transferred to the money institution .
The identity may, among other things, be used to designate the money institution from which money was initially trans¬ ferred, or to which money institution money was transferred.
At the time of payment using the cash card, the amount to be paid is caused to be transferred, together with the said identity, from the cash card 1 to a payment terminal 5 con¬ nected to the said payment station. The payment terminal with the payment station is suitably of the same type as conven¬ tional payment terminals for debit or credit cards. The cash card communicates with the payment terminal.
The payment terminal is caused to store the paid amount to¬ gether with the said identity, and a remaining amount after the payment is counted down on the cash card and is stored on the cash card. Counting down may alternatively take place in the payment terminal .
The present invention can be adapted to function online or offline, even if the offline case is preferred. Thereafter, the payment terminal 5 is caused to contact, and thereby activate, the money institute 3 for transferring, using the identity, the amount which is paid using the cash card 1, as is illustrated by the arrow 6, to an account 7 belonging to the point of sale at which the payment terminal is located, which is illustrated by arrow 8.
In case the purchase and the transfer of the amount to the seller' s account take place simultaneously, it is an online purchase .
This way, a payment is performed, corresponding to a cash payment using physical money, where there are no connections between the cash card and the proprietor of the cash card. Anyone can use the cash card for a payment, under condition that the cash card contains a required amount of money, as is the case with physical money. The above described relates to a simple embodiment of the invention. However, there is a need to increase the security during the various transfers, why an embodiment with higher security is described in the following. Also according to this embodiment, the cash card 1 is caused to store a unique identity but also a secret cryptographic key which is associated with an amount of money, which exists at the money institution, or which is caused to be trans¬ ferred from a bank account or the corresponding, to the money institution 3. The amount lacks any connection to the proprietor of the cash card 1, except for via the said identity.
At the time of payment using the cash card 1, the amount to be paid, together with the said identity and any additional arameters, such as in the form of time of purchase, current amount and/or a random number, as well as a number calculated using the secret cryptographic key and by the cash card pro¬ cessor, is transferred from the cash card to a payment termi- nal 5, which is illustrated by the broken arrow 9. The pay¬ ment terminal 5 is caused to store the current amount togeth¬ er with the said calculated number. Thereafter, the payment terminal is caused to perform a cal¬ culation using the parameters that were used to perform the said calculation by the cash card processor, using the cash card's public cryptographic key. At a match between the num¬ ber calculated by the cash card processor and the number calculated by the payment terminal, the payment terminal is caused to store the current transaction and to activate the money institution 3, which is illustrated using the broken arrow 10, to reimburse, using the cash card 1 identity, the amount to be paid to an account 7 belonging to the point of sale at which the payment terminal 5 is located, which is illustrated using the broken arrow 11. Usually, there will be a time difference between the counting down of the cash card amount and the transfer by the point of sale of the current amount or the daily statement. The amount on the cash card is caused to be counted down and to be stored after payment on the cash card 1. When payment has taken place using the reim¬ bursement, it is preferred that the counted down amount ex¬ ists on the cash card in order to, at the next payment, be able to know the available amount.
According to a preferred embodiment, at the said activation of the money institution the payment terminal 5 is caused to calculate a number based upon known parameters regarding the purchase and using a secret cryptographic key at the payment terminal. The payment terminal 5 is caused to transfer the said parameters and the said number to the money institution, and the money institution is caused to perform a calculation using the same parameters and using the public cryptographic key of the payment terminal, and when there is a match the said transfer takes place to an account belonging to the point of sale. Since it is possible to carry through with a purchase using the cash card, this can be used to buy physical cash money at an automatic cash dispensing machine, such as an ATM.
By both the processor on the cash card, the payment terminal and the money institution performing calculations using se¬ cret and public cryptographic keys, the purchase, the payment terminal and also the cash card are authenticated. Hence, this results in a very safe system which is very difficult to manipulate .
According to a preferred embodiment, the said unique identity can be emitted by the money institution.
According to an alternative embodiment, the said unique iden- tity is caused to be emitted by the cash card emitter.
According to another preferred embodiment, the said unique identity is stored on the cash card in encrypted form, and the money institution has a required decryption key.
According to an additional preferred embodiment, the cash card is caused to be stored in the memory or chip of a mobile telephone, and the mobile telephone is caused to communicate with the said payment terminal during a payment.
It is preferred that transmission of money to the cash card is caused to take place via a cash dispensing machine, such as an ATM or a charging teller or a POS or a computer or a so called smartphone .
It is also preferred that the payment terminal is caused to verify that a sufficient amount is present on the cash card before the payment is effected.
Above, a number of embodiments have been described. However, the invention can be varied. Hence, the choice of parameters for performing the above mentioned calculations can be other parameters than the ones mentioned above.
Therefore, the present invention is not to be considered limited to the above described exemplifying embodiments, but may be varied within the scope of the enclosed claims.

Claims

Claims .
1. Method for cash card payment in a payment station for debit and credit cards, c h a r a c t e r i s e d i n that the cash card (1) comprises a processor and is caused to store a unique identity associated with a money amount, which exists at a money institution (3) , such as a central bank, or which is caused to be transferred from a bank account or the corresponding, to the money institution, in that the trans- ferred amount is caused to be stored on the cash card (1), in that the amount lacks a connection to the proprietor of the cash card except via the said identity, in that, at payment using the cash card (1), the amount to be paid is caused to be transferred, together with the said identity, from the cash card (1) to a payment terminal (5) comprising the said payment station, in that the payment terminal (5) is caused to store the paid amount together with the said identity and that a remaining amount after payment is counted down on the cash card and is stored on the cash card, and in that the payment terminal (5) is caused to activate the money institu¬ tion (3) to transfer, using the identity, the amount to be paid using the cash card (1) to an account (7) belonging to the point of sale where the payment terminal (5) is located.
2. Method according to claim 1, c h a r a c t e r i s e d i n that the cash card (1) is caused to store a unique iden¬ tity associated with a money amount which exists at the money institution (3) , or which is caused to be transferred from a bank account or the corresponding, to the money institution (3) , as well as to store a secret cryptographic key, in that the amount lacks any connection to the proprietor of the cash card, except for via the said identity, in that, at the time of payment using the cash card (1), the amount to be paid, together with the said identity and any additional parame¬ ters, such as in the form of time of purchase, current amount and/or a random number, as well as a number calculated using the secret cryptographic key and by the card processor, is transferred from the cash card to a payment terminal (5) comprising said payment station, in that the payment terminal is caused to store the current amount together with the said calculated number, in that the payment terminal (5) is caused to perform a calculation using the parameters that were used to perform the said calculation by the card processor using the card's public cryptographic key, in that, at a match between the number calculated by the cash card (1) processor and the number calculated by the payment terminal (5) , the payment terminal is caused to store the current transaction and to activate the money institution (3) to reimburse, using the cash card identity, the amount to be paid to an account belonging to the point of sale at which the payment terminal (5) is located, and in that the amount on the cash card is caused to be counted down and to be stored after payment on the cash card.
3. Method according to claim 1, c h a r a c t e r i s e d i n that, at the said activation of the money institution (3) , the payment terminal (5) is caused to calculate a number based upon known parameters regarding the purchase using a secret cryptographic key of the payment terminal (5) , in that the payment terminal is caused to transfer the said parame¬ ters and the said number to the money institution (3) , in that the money institution is caused to perform a calculation using the same parameters and the public cryptographic key of the payment terminal, and at a match the said transfer takes place to an account belonging to the point of sale.
4. Method according to claim 1, 2 or 3, c h a r a c t e r i s e d i n that the said unique identity is caused to be emitted by the money institution (3) .
5. Method according to claim 1, 2, 3 or 4, c h a r a c t e r i s e d i n that the said unique identity is caused to be emitted by the cash card emitter.
6. Method according to claim 1, 2, 3, 4 or 5, c h a r a c - t e r i s e d i n that the said unique identity is stored on the cash card (1) in encrypted form, and in that the money institution (3) has a required decryption key.
7. Method according to claim 1, 2, 3, 4, 5 or 6, c h a r - a c t e r i s e d i n that the cash card (1) is caused to be stored in the memory or chip of a mobile phone, and in that the mobile phone is caused to communicate with the said pay¬ ment terminal (5) at a payment.
8. Method according to claim 1, 2, 3, 4, 5, 6 or 7,
c h a r a c t e r i s e d i n that transfer of money to the cash card (1) is caused to take place via a cash dispensing machine, such as an ATM.
9. Method according to any one of the preceding claims, c h a r a c t e r i s e d i n that the payment terminal (5) is caused to verify that a sufficient amount exists on the cash card (1) before the payment is effected.
PCT/SE2016/051023 2015-10-30 2016-10-20 Method for payment with a cash card WO2017074244A1 (en)

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US15/770,533 US11461758B2 (en) 2015-10-30 2016-10-20 Method for payment with cash card
FIEP16860383.5T FI3369062T3 (en) 2015-10-30 2016-10-20 Method for payment with a cash card
EP16860383.5A EP3369062B1 (en) 2015-10-30 2016-10-20 Method for payment with a cash card
DK16860383.5T DK3369062T3 (en) 2015-10-30 2016-10-20 PROCEDURE FOR PAYMENT WITH A WITHDRAWAL CARD
ES16860383T ES2930849T3 (en) 2015-10-30 2016-10-20 Payment method with a cash card

Applications Claiming Priority (2)

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SE1551407A SE540544C2 (en) 2015-10-30 2015-10-30 Procedure for payment by prepaid card
SE1551407-8 2015-10-30

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EP (1) EP3369062B1 (en)
DK (1) DK3369062T3 (en)
ES (1) ES2930849T3 (en)
FI (1) FI3369062T3 (en)
SE (1) SE540544C2 (en)
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FI3369062T3 (en) 2022-12-15
ES2930849T3 (en) 2022-12-22
US11461758B2 (en) 2022-10-04
SE1551407A1 (en) 2017-05-01
US20190057370A1 (en) 2019-02-21
EP3369062B1 (en) 2022-08-31
EP3369062A4 (en) 2018-10-17
DK3369062T3 (en) 2022-11-28
EP3369062A1 (en) 2018-09-05
SE540544C2 (en) 2018-09-25

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