Abstract: Methods and systems related to distributing payment keys to multiple discrete devices in a point of sale (POS) system are disclosed. One method includes storing a payment key on a first discrete device for a POS system and a public key certificate on a second discrete device for the POS system. The method also includes communicatively connecting the first discrete device with the second discrete device using a wire, transmitting the public key certificate from the second discrete device to the first discrete device using the wire, and verifying the public key certificate on the first discrete device. The method also includes finalizing a secure connection between the first discrete device and the second discrete device over the wire using a transport layer secure (TLS) protocol after the public key certificate is verified.

Abstract: This disclosure relates to systems with multiple NFC front ends and at least one shared controller. One disclosed system includes a first discrete device having a first near field communication (NFC) controller, a second discrete device having a second NFC controller, a communicative connection between the first discrete device and the second discrete device, and a system controller located on the first discrete device. The system controller is communicatively connected to the first NFC controller. The system controller is connected to the second NFC controller via the communicative connection. In specific approaches, the second discrete device can include a display which is also controlled by the system controller, and the system controller is NCI compliant and application aware. In specific approaches, the system controller can control the second NFC controller based on the content concurrently being provided to the display.

Abstract: Methods and systems are disclosed that provide enhanced flexibility to merchants in the configuration of POS systems. One disclosed system includes a payment interface device having a first display, a means for receiving payment information, and a first payment flow display service (PFDS). The system also includes a display device having a second display and a second PFDS. The system also includes a secure wireless connection formed by a first short-range wireless protocol (SRWP) module on the payment interface device and a second SRWP module on the display device. The first and second PFDSs conduct an exchange of messages over the secure wireless connection to execute a payment flow.

Abstract: A device includes a display and one or more processors that cause a speaker associated with the device to serially recite a plurality of auditory cues. Each of the plurality of auditory cues corresponds to one of a set of characters, and each recitation of the plurality of auditory cues occurs at a predetermined time period. The one or more processors also receive a touch input on the display from a user during the recitation of the plurality of auditory cues, determine a character from the set of characters that corresponds to the touch input based on the predetermined time period, and store the character as a value in a sequence of user-specific information.

Abstract: Methods and systems related to distributing payment keys to multiple discrete devices in a point of sale (POS) system are disclosed. One method includes storing a payment key on a first discrete device for a POS system and a public key certificate on a second discrete device for the POS system. The method also includes communicatively connecting the first discrete device with the second discrete device using a wire, transmitting the public key certificate from the second discrete device to the first discrete device using the wire, and verifying the public key certificate on the first discrete device. The method also includes finalizing a secure connection between the first discrete device and the second discrete device over the wire using a transport layer secure (TLS) protocol after the public key certificate is verified.

Abstract: This disclosure relates to systems with multiple NFC front ends and at least one shared controller. One disclosed system includes a first discrete device having a first near field communication (NFC) controller, a second discrete device having a second NFC controller, a communicative connection between the first discrete device and the second discrete device, and a system controller located on the first discrete device. The system controller is communicatively connected to the first NFC controller. The system controller is connected to the second NFC controller via the communicative connection. In specific approaches, the second discrete device can include a display which is also controlled by the system controller, and the system controller is NCI compliant and application aware. In specific approaches, the system controller can control the second NFC controller based on the content concurrently being provided to the display.

Abstract: Methods and systems related to near field communication (NFC) front ends for point of sale terminals are disclosed. One point of sale system includes an applications microprocessor programmed to: (i) instantiate an operating system for the point of sale system and (ii) generate a set of data packets. The system also includes a discrete microcontroller communicatively coupled with the applications microprocessor and programmed to: (i) selectively operate in an unsecure mode and a secure mode; and (ii) filter, when operating in the unsecure mode, the set of data packets received from the applications microprocessor using a filter and a whitelist for the filter. The system also includes a near field communication front end communicatively coupled to the discrete microcontroller and an antenna, for transmitting a near field communication signal based on information from the set of data packets via the antenna.

Abstract: Methods and systems for processing secure information are disclosed. One method includes receiving secure data from a user via an input device. The method also includes routing the secure data to a secure processor using a hardware multiplexer. The method also includes processing the secure data using the secure processor. The method also includes receiving non-secure data from the user via the input device. The method also includes routing the non-secure data to a second processor using the hardware multiplexer. The method also includes processing the non-secure data using the second processor. The method also includes altering a routing state of the hardware multiplexer using the secure processor. The routing state of the hardware multiplexer is only controlled by the secure processor.

Abstract: This disclosure relates to systems with multiple NFC front ends and at least one shared controller. One disclosed system includes a first discrete device having a first near field communication (NFC) controller, a second discrete device having a second NFC controller, a communicative connection between the first discrete device and the second discrete device, and a system controller located on the first discrete device. The system controller is communicatively connected to the first NFC controller. The system controller is connected to the second NFC controller via the communicative connection. In specific approaches, the second discrete device can include a display which is also controlled by the system controller, and the system controller is NCI compliant and application aware. In specific approaches, the system controller can control the second NFC controller based on the content concurrently being provided to the display.

Abstract: Methods and systems related to near field communication (NFC) front ends for point of sale terminals are disclosed. One point of sale system includes an applications microprocessor programmed to: (i) instantiate an operating system for the point of sale system and (ii) generate a set of data packets. The system also includes a discrete microcontroller communicatively coupled with the applications microprocessor and programmed to: (i) selectively operate in an unsecure mode and a secure mode; and (ii) filter, when operating in the unsecure mode, the set of data packets received from the applications microprocessor using a filter and a whitelist for the filter. The system also includes a near field communication front end communicatively coupled to the discrete microcontroller and an antenna, for transmitting a near field communication signal based on information from the set of data packets via the antenna.

Abstract: Methods and systems are disclosed that provide enhanced flexibility to merchants in the configuration of POS systems. One disclosed system includes a payment interface device having a first display, a means for receiving payment information, and a first payment flow display service (PFDS). The system also includes a display device having a second display and a second PFDS. The system also includes a secure wireless connection formed by a first short-range wireless protocol (SRWP) module on the payment interface device and a second SRWP module on the display device. The first and second PFDSs conduct an exchange of messages over the secure wireless connection to execute a payment flow.

Abstract: Methods and systems are disclosed that provide enhanced flexibility to merchants in the configuration of POS systems. One disclosed system includes a payment interface device having a first display, a means for receiving payment information, and a first payment flow display service (PFDS). The system also includes a display device having a second display and a second PFDS. The system also includes a secure wireless connection formed by a first short-range wireless protocol (SRWP) module on the payment interface device and a second SRWP module on the display device. The first and second PFDSs conduct an exchange of messages over the secure wireless connection to execute a payment flow.