Abstract: Methods and systems for dynamically generating a verification value for a transaction and for utilizing such value to verify the authenticity of the payment service application. The dynamically created verification value may be generated on a payment device, such as an integrated circuit credit card or smart card, embedded into the payment data, and transmitted to a point of sale terminal. Alternatively, payment data is sent by a payment device to a point of sale terminal, which generates a verification value and embeds it into the payment data. The embedded verification value is used by a service provider to verify the authenticity of the transaction. The methods and systems may be used in a contactless (wireless) environment or a non-wireless environment.

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.

Abstract: A method. The method comprises, at a reader, performing at least one transaction-based risk management process prior to energizing a contactless interface, initiating communication with a card utilized for the contactless transaction, receiving information associated with the card, and terminating communication with the card to authorizing the contactless transaction.

Abstract: A method of performing a transaction over a contactless interface placing a first device in wireless communication with a second device, selecting the interface over which the first and second device will communicate, selecting the application to be used to approve or disapprove the transaction, communicating to the second device the data necessary for the application to approve of disapprove the transaction.

Abstract: Methods and systems for dynamically generating a verification value for a transaction and for utilizing such value to verify the authenticity of the payment service application. The dynamically created verification value may be generated on a payment device, such as an integrated circuit credit card or smart card, embedded into the payment data, and transmitted to a point of sale terminal. Alternatively, payment data is sent by a payment device to a point of sale terminal, which generates a verification value and embeds it into the payment data. The embedded verification value is used by a service provider to verify the authenticity of the transaction. The methods and systems may be used in a contactless (wireless) environment or a non-wireless environment.

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.

Abstract: A system and method for managing one or more applications deployed on a mobile electronic device, such as a cellular phone, are disclosed. The system and method enable the user of a mobile electronic device to select one of a plurality of applications deployed on the mobile electronic device for use in a transaction and to authenticate himself or herself prior to initiating the transaction. The transaction may occur via a wireless interface and/or a contact-based interface. In addition, the system and method allow the user to manage applications deployed on a mobile electronic device, including adding new applications, designating nicknames for the applications and setting security codes for each application.

Abstract: A system and method for managing one or more applications deployed on a mobile electronic device, such as a cellular phone, are disclosed. The system and method enable the user of a mobile electronic device to select one of a plurality of applications deployed on the mobile electronic device for use in a transaction and to authenticate himself or herself prior to initiating the transaction. The transaction may occur via a wireless interface and/or a contact-based interface. In addition, the system and method allow the user to manage applications deployed on a mobile electronic device, including adding new applications, designating nicknames for the applications and setting security codes for each application.

Abstract: Methods and systems of encrypting and authenticating transaction data via the use of encryption and authentication algorithms are disclosed. Encryption and decryption algorithms are stored within a computer-readable storage medium and executed by a processor on a user device. These algorithms are used when a transaction is initiated by the user device with a point of transaction terminal across a communication interface to establish a secure connection for the transmission of data. Data relating to the transaction is then sent across the communication interface through the secure connection.

Abstract: A method of performing a transaction over a contactless interface placing a first device in wireless communication with a second device, selecting the interface over which the first and second device with communicate, selecting the application to be used to approve or disapprove the transaction, communicating to the second device the data necessary for the application to approve or disapprove the transaction.

Abstract: A method and device are described for conducting a transaction between electronic devices in which transaction data is exchanged over an infrared frequency. A first and second electronic device, with a common encryption algorithm deployed on each device, establish an infrared communications link. The second electronic device transmits a transaction request together with an encryption key to the first electronic device. The first electronic device returns response data to the second electronic device which response data is encrypted using the common encryption algorithm and the encryption key. An account to be utilized in the transaction is derived from the response data allowing the transaction to be completed.