WO2003012703A2 - Procede de securisation de transactions - Google Patents
Procede de securisation de transactions Download PDFInfo
- Publication number
- WO2003012703A2 WO2003012703A2 PCT/FR2002/002671 FR0202671W WO03012703A2 WO 2003012703 A2 WO2003012703 A2 WO 2003012703A2 FR 0202671 W FR0202671 W FR 0202671W WO 03012703 A2 WO03012703 A2 WO 03012703A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transaction
- holder
- transactions
- support
- authorization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
- G06Q20/401—Transaction verification
- G06Q20/4016—Transaction verification involving fraud or risk level assessment in transaction processing
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
- G06Q20/403—Solvency checks
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
-
- 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
Definitions
- the invention relates to a method for securing financial transactions carried out by means of media such as bank cards or the like.
- this transaction can be described, as regards its payment, by an identification of a card. payment (card number, called PAN, and expiration date), an amount, the identity of the merchant, or even the identity of the buyer. It is also characterized by a set of information on the technical terms of the transaction, contained in fields of computer messages which pass through the financial networks.
- the merchant sends this transaction to his bank or to an intermediary gateway, such as a remote collection center or a telepayment gateway, in the form of an authorization request.
- an intermediary gateway such as a remote collection center or a telepayment gateway, in the form of an authorization request. This is sent to the buyer's bank, which has a few seconds to check the status of the card and its limits, before authorizing or rejecting the transaction.
- the merchant then ships the goods and submits a payment request. This follows the same route as the authorization request, passing through a possible gateway, the merchant's bank, generally the interbank networks and arriving at the buyer's bank.
- This system can be ineffective in distance selling, while this type of sale is particularly conducive to fraud, because it may be too slow to allow a rejection of the authorization, and therefore cannot prevent the transaction from being concluded and the goods delivered, even when the card holder is warning the system that fraud is in progress.
- the location of the mobile telephone can only be legally obtained with the agreement of its holder. The latter will only give it to the extent that he sees an interest in it.
- cases of fraud detectable by the system although financially very penalizing, are little known to the general public who are not aware of it.
- the document EP-A-0745961 describes a process which only involves special means on the buyer side.
- This method includes a mechanism for interception of authorization requests by the issuing bank. Upon receipt of these requests, the bank sends a message to the buyer, typically by telephone. The buyer can thus oppose the transaction, leading the bank to send a refusal of authorization to the merchant. According to the embodiments, this refusal is sent on dispute by the buyer or on lack of response on his part within a given period.
- virtual card In which a particular card number is issued for remote transactions. This eliminates the risk that this number, obtained by a fraudster, will be used for other transactions, since it is only valid for one transaction before being neutralized.
- this system also has limits in terms of security, since it does not prevent a fraudster from using the real card number for remote transactions.
- This virtual card system also carries a significant risk of error by the holder, who may in particular forget to request a virtual number and order with his real number.
- the present invention aims to provide a simple and effective solution to these problems. To this end, it proposes a method of
- this process consisting in associating, in a protected database, each medium and a means of communication with the holder of the medium , and have an merchant terminal send an authorization or payment request to an authorization or payment server, this request comprising information relating to the transaction and the methods of reading information on the medium used by the buyer, characterized in that it also consists of:
- this process also consists in asking the holder if he is indeed the author of the transaction in order to possibly put the card in opposition or to stop the shipment of the goods. We can also offer the holder to refuse the transaction and ask the bank to re-credit his account for the amount of the transaction.
- the invention comprises means only on the side of the buyer and his bank. This avoids the disadvantages due to the constraint of double equipment.
- the invention is part of the existing electronic payment rules, which it does not require any modification. In particular, it does not imply any intervention on the functioning of the authorization servers of banks: the system according to the invention can be satisfied with receiving, in slight delay, a copy of the authorizations granted by the bank. This point is particularly important, because these servers are often extremely complex machines, the result of dozens of successive modifications, and whose operation is critical: any interruption results in ' an impossibility of payment for the bank's customers.
- the invention allows an extremely fast and inexpensive implementation, practically without material investment (neither for the bank, nor for the buyer, nor for the merchant) and without computer modification within the bank or at the merchant.
- the invention does not allow the buyer to block the transaction at the time of the authorization request. However, it allows very rapid opposition, preventing the fraudster from reusing a card. The invention therefore allows a very significant limitation of fraud.
- two main mechanisms for identifying risky transactions are proposed and can be used separately or in combination.
- the first mechanism uses information describing the regulatory conditions of the transaction.
- the second mechanism uses the information describing the technical methods of reading information from the medium used by the wearer.
- the first is the entry of the confidential code, indicated by field 22 (“reading mode of the acceptance system”, second sub-field “code entry capacity”). Indeed, in current systems, entering the code requires a physical presence of the wearer. Exceptions can be treated using the field "mode of reading the carrier number" (first sub-field of field 22. In fact, there is currently no distance selling system with both input code and track playback.
- This second mechanism is a very effective filter for remote transactions. However, some of them will remain poorly identified. Mail order purchases paid for using readers available to the holder (CyberComm, GSM double slot) are in this case. To identify them correctly, the second mechanism (entering the code, reading the chip) and the first (distance selling) must be combined.
- Transactions in the physical presence of the holder without reading the track or the chip and without control of the confidential code may be treated either as risky transactions (if for example they come from countries or merchants where the level of control of the identity of the bearer and mechanisms such as the hologram are deficient), or as secure transactions. In general, it will be beneficial to distinguish, in the process of selecting risky transactions, the countries of origin of the transactions.
- the virtual number (therefore the virtual number, recognizable by the value of its first digits). This can also be done at the bank level.
- the virtual number may have been replaced by the real number, but the mention of the origin (for example the machine having made this substitution) makes it possible to identify that the original transaction used a virtual number.
- alerts are sent to the card holder, or more generally to a person with the right to control over the expenses made with this card. It can be the bearer himself, the father or the mother in the case of a minor child, a purchasing manager in the case of acquisition cards for companies. This person is designated in the following as the holder.
- this communication device is a portable telephone, for example a telephone with the GSM standard or a similar standard.
- messaging devices pagers
- communicating personal assistants are used.
- a landline telephone is used, for example the holder's personal telephone or business telephone, or a fax machine.
- electronic mail is used, the communication device then being the holder's computer.
- the constitution of a correspondence list between payment card numbers and telephone numbers of the holder is an essential element of the process according to the invention. It must be avoided that a fraudster can build or modify such a list, for example by assigning a valid card number his own telephone number. This is why this list is made up by the banks of the holders.
- Each line in the list is guaranteed by the bank. This guarantee can take several forms: digital certificate for each card, using a public key algorithm and a bank key; protected deposit in the confirmation site; deposit of the list and global protection by a certificate with public key of the site.
- the bank certifies the link between a card number, represented by a subscriber number, and the mobile phone number of the buyer (or of the person who is responsible for controlling his purchases: supervisor or parent for example).
- the list is made up and guaranteed by a telephone operator (mobile or fixed), which has the contact details of its subscribers.
- the card number, PAN is made up of three fields: UN (bank identification), AAN (card identifier) and a CC check digit.
- UN bank identification
- AAN card identifier
- CC check digit a CC check digit.
- UN bank identification
- AAN card identifier
- CC check digit a CC check digit.
- f without collision for example the RSA algorithm, whose private key has been destroyed.
- This function is applied to the PAN and the result is concatenated with the UN field to form a subscriber number.
- an identifier such as for example the telephone number of the holder's mobile telephone.
- we can form a couple comprising the subscriber number and the telephone call number and apply to the two elements of this couple a private encryption key from the bank, to generate a certificate.
- the preferred alert mode is the mobile phone message.
- This message can be written or voice. It is advantageously in accordance with the GSM standard (SMS message, MMS, WAP push).
- SMS message, MMS, WAP push A variant is the message written on a messaging device.
- Another variant is, for carriers who have such a service, the use of instant messaging, which will automatically choose the mode of transport of the message best suited to the circumstances.
- This alert mode can, for certain cardholders, be replaced by a message on a landline telephone, the personal number or the professional number of the card holder.
- We can provide voice messages, but also written messages (which will be transformed into voice messages, or delivered in written form on the screens of phones that have this option).
- This variant will benefit from future intelligent mailbox services, capable of distinguishing members of the same family so as to deliver messages only to the right recipients.
- the alert message includes the main information available allowing the bearer to identify the transaction.
- the form of the message is advantageously adapted to the alert mode and to the communication channel.
- An example of such a message, designed for the SMS alert mode on GSM is as follows:
- the telephone number indicated allows customer support. We will assist him to verify that he dispute the transaction, and that it is not an error on his part. He will eventually be advised to put his card in opposition.
- the preferred alert mode is advantageously supplemented by one or more emergency alert modes, to compensate for cases of failure (change of telephone number, mobile phone off or outside the coverage area, network failure, etc.).
- emergency alert modes we will find another telephone number (landline or mobile), an electronic message, a fax machine.
- An example of a rescue message is as follows:
- a transaction made with a virtual card number may not be sufficiently secure, for example in the case where this number can be used several times.
- a variant then consists in sending an alert which mentions the virtual card.
- An example of such a message for the SMS channel is as follows:
- the method according to one invention provides several modes of response by the carrier.
- the first response mode is SMS response or, more closely, the use of a two-way messaging device.
- the message includes the necessary information (how, or even to whom to respond to confirm or reject the transaction). This answer should be as simple as possible. It will advantageously hold on a single letter (in the example above, ⁇ A 'or ⁇ S'). It must take into account predictive input mechanisms (on some mobile phones, R 'is thus automatically translated into ⁇ S').
- Another response mode is voice response, to a number indicated in the message or made available to the carrier by other means.
- Some telephones allow, for simplicity, the call to a number mentioned in the message and recognized automatically.
- the third response mode is the written response, particularly for alerts sent by email or fax.
- transmitters / telephone numbers are advantageously used cyclically.
- the system has a sufficient number of transmitters / telephone numbers to manage the remote purchases of the vast majority of carriers for a sufficient period of time.
- transmitters can be physical transmitters or virtual transmitters.
- MO Mobile Originated messages
- MO Mobile Originated messages
- a rejection of a transaction by the holder can lead to the implementation of the reimbursement mechanisms provided by the banking systems.
- the consequences of fraud must be limited.
- the method according to the invention comprises several modes of limiting fraud.
- a first method consists of identifying the merchant whose sale is disputed and alerting him immediately. If the alert was issued quickly enough, and if the holder responded without long delay, the merchant has the option of not sending the goods. He can also deliver it while keeping it under surveillance in order to catch fraudsters.
- the merchant is known thanks to the information appearing in electronic messages which are merchant identification information (for example fields 42 and 43 of ISO 8583), but also the terminal number (field 41).
- merchant identification information for example fields 42 and 43 of ISO 8583
- terminal number for example fields 42 and 43 of ISO 8583
- a second mode of limiting fraud complementary to the first, the future use of the card is limited. In traditional methods, this takes the form of opposing, then destroying the card. This method is well suited to classic cases of card duplication fraud, but it is cumbersome and costly in cases of fraud using the card number.
- the second method of limiting fraud avoids this drawback and consists in refusing all authorizations containing the card number in question, since it may be a sale in the absence of the physical card.
- the authorization server is used. As soon as an authorization request including the card number is detected, it is checked whether it is a distance sale using one of the identification methods described above. If so, the authorization request is refused, and an alert is sent on the one hand to the holder to verify that he is not the author of the transaction, on the other hand to the bank to report the continuation of the fraud.
- a blocking algorithm is implemented in the authorization server of the bank.
- a diversion mechanism is often used in authorization servers. This mechanism consults a list of card numbers integrated into the server. Each authorization request for a card that is part of the list is diverted to a second machine, which may or may not block the request. This second embodiment makes it possible to set up the blocking mechanism without software modification on most authorization servers.
- there is a dedicated server in the interbank network It is he who can detect authorization requests, and collect those which must be blocked.
- This method of limiting fraud will advantageously be supplemented by intervention at the level of the payment server. Indeed, certain transactions are not the subject of an authorization request, and the merchant also has the possibility of requesting a payment even when the authorization to make the transaction has been refused. To do this, we include in the payment algorithms a systematic rejection of any remote payment made with a blocked card. You can also use a payment card of the "first franc authorization request" type.
- the holder who wishes to make a purchase by mail informs his bank in advance.
- the latter can then lift the blocking mechanism for a limited period (for example 2 hours), or for certain merchants.
- a message is sent to the bearer in the event of an authorization request if the card has not been unlocked, in order to allow him to repair a possible oversight.
- the holder who wishes to make a purchase by correspondence will first seek, for example on the website of his bank, a temporary card number. It uses this number, called virtual number, instead of the real number.
- the authorization request is thus directed to a particular server, called a virtual card server, which replaces the virtual number with the real number, checks that the use of the first conforms to the rules which limit its use, then retransmits the authorization request for acceptance to the bank's server.
- the authorization request arrives at the bank with the real number, as well as information that shows that it was originally issued with a virtual number. This neutralizes the locking mechanism.
- an alert message is sent to the bearer even if the transaction has been blocked. It indicates the reason for the rejection, and the possibility of using a virtual number.
- An example of such a message for the SMS channel is as follows:
- This virtual card server can be the recipient of all authorization requests from the bank, or can only process the numbers corresponding to virtual cards.
- the virtual card server is also the network server provided in the third embodiment of the fraud limitation mode.
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- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Strategic Management (AREA)
- General Business, Economics & Management (AREA)
- Theoretical Computer Science (AREA)
- Finance (AREA)
- Computer Security & Cryptography (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2002341013A AU2002341013A1 (en) | 2001-07-27 | 2002-07-25 | Method for making transactions secure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0110138A FR2827982B1 (fr) | 2001-07-27 | 2001-07-27 | Procede de securisation de transactions |
| FR01/10138 | 2001-07-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2003012703A2 true WO2003012703A2 (fr) | 2003-02-13 |
| WO2003012703A3 WO2003012703A3 (fr) | 2003-11-20 |
Family
ID=8866041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2002/002671 Ceased WO2003012703A2 (fr) | 2001-07-27 | 2002-07-25 | Procede de securisation de transactions |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2002341013A1 (fr) |
| FR (1) | FR2827982B1 (fr) |
| WO (1) | WO2003012703A2 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5708422A (en) * | 1995-05-31 | 1998-01-13 | At&T | Transaction authorization and alert system |
| AU3977597A (en) * | 1996-08-08 | 1998-02-25 | Robert Richard Bock | Financial transaction, authorization, notification and security apparatus |
| AU9362498A (en) * | 1997-09-17 | 1999-04-05 | Akos Andrasev | Method for checking rightful use of a debit card or similar means giving right of disposing of a bank account |
| US6636833B1 (en) * | 1998-03-25 | 2003-10-21 | Obis Patents Ltd. | Credit card system and method |
-
2001
- 2001-07-27 FR FR0110138A patent/FR2827982B1/fr not_active Expired - Fee Related
-
2002
- 2002-07-25 WO PCT/FR2002/002671 patent/WO2003012703A2/fr not_active Ceased
- 2002-07-25 AU AU2002341013A patent/AU2002341013A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003012703A3 (fr) | 2003-11-20 |
| FR2827982A1 (fr) | 2003-01-31 |
| FR2827982B1 (fr) | 2005-02-18 |
| AU2002341013A1 (en) | 2003-02-17 |
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