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US 7,740,168 B2Granted
Method and system for generating a dynamic verification value
AssigneeVisa U.S.A. Inc.
InventorsAyman Hammad, Patrick Faith, Christian Aabye, Jagdeep Singh Sahota
Life of this patent
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Abstract
A method is disclosed. The method includes generating a verification value in response to a transaction involving a portable consumer device, where the verification value is generated using a first dynamic data element and a second dynamic data element. The verification value is sent to a service provider associated with the portable consumer device so that the service provider can verify the transaction.
Claims24
A method comprising:
- generating a verification value in response to a transaction involving a portable consumer device, wherein the verification value is generated using a first dynamic data element and a second dynamic data element, wherein the first dynamic data element or the second dynamic data element includes a time of day or a current transaction amount;
- and
- sending the verification value to a service provider with data in a magnetic stripe data format so that the service provider can verify the verification value,
- wherein the verification value is also generated using at least one static data element, and wherein the transaction is a payment transaction, and wherein the static data element includes at least one of an expiration date, a phone number, a SIM card number, a service code, and an account number.
1 more element
A computer readable medium comprising:
- code for generating a verification value in response to a transaction involving a portable consumer device, wherein the verification value is generated using a first dynamic data element and a second dynamic data element, wherein the first dynamic data element or the second dynamic data element includes a time of day or a current transaction amount;
- and
- code for sending the verification value to a service provider with data in a magnetic stripe data format so that the service provider can verify the verification value,
- wherein the verification value is also generated using at least one static data element, and wherein the transaction is a payment transaction, and wherein the static data element includes at least one of an expiration date, a phone number, a SIM card number, a service code, and an account number.
1 more element
A method comprising:
- receiving an authorization request message comprising a first verification value, along with data comprising an indicator that the first verification value is included in the authorization request message, in a magnetic stripe data format in response to a transaction involving a portable consumer device, wherein the first verification value is generated using a first dynamic data element and a second dynamic data element, wherein the first dynamic data element or the second dynamic data element includes a time of day or a current transaction amount, and wherein the authorization request message further comprises the time of day or the current transaction amount;
- and
- determining if the received first verification value matches a second verification value at a service provider computer.
A system comprising:
- means for receiving an authorization request message comprising a first verification value, along with data comprising an indicator that the first verification value is included in the authorization request message, in a magnetic stripe data format in response to a transaction involving a portable consumer device, wherein the first verification value is generated using a first dynamic data element and a second dynamic data element, wherein the first dynamic data element or the second dynamic data element includes a time of day or a current transaction amount, and wherein the authorization request message further comprises the time of day or the current transaction amount;
- and
- means for determining if the received first verification value matches a second verification value at a service provider computer.
Dependencies are inferred from the claim text.