SECURE POINT OF SALE TERMINAL AND ASSOCIATED METHODS

摘要

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.

主权项

1. A device comprising:
an input device with an input device user data connection to an input device controller; a multiplexer with a multiplexer control input port, a multiplexer data input port communicatively coupled to the input device controller, a first data output port, and a second data output port; a secure processor with: (i) a control output port communicatively coupled to the multiplexer control input port; and (ii) a secure processor data input port communicatively coupled to the first data output port; and a second processor with a second processor data input port communicatively coupled to the second data output port; wherein the multiplexer is configurable between a first state and a second state; wherein the multiplexer data input port is communicatively coupled to the first data output port through the multiplexer when a current state of the multiplexer is the first state; wherein the multiplexer data input port is communicatively coupled to the second data output port through the multiplexer when the current state of the multiplexer is the second state; and wherein the current state of the multiplexer is exclusively controlled by the secure processor via the control output port.