Abstract: A consumer terminal for a point-of-sale (POS) system used in performing a POS transaction between a merchant and a consumer. The consumer terminal includes a touch screen display having a touch panel, a secure processor in a physically secure area and a main processor in a non-secure area. The main processor is configured to display a series of screens to guide a consumer through the POS transaction. Upon receiving a request for secure data from the main processor, the secure processor instructs the main processor to exit pass-through mode and enter a secure touch mode. Upon a determination that the request for secure data is complete, the secure processor instructs the main processor to exit secure touch mode and return to pass-through mode.

Abstract: A point-of-sale (POS) system used in performing a POS transaction between a merchant and a consumer. The POS system includes a display having a touch panel, a main processor and a memory device. The POS system also includes a secure enclave with a secure processor and a microcontroller. The main processor is configured to display a series of screens to guide a consumer through the POS transaction. The microcontroller provides the inputs from the touch panel to the main processor when the POS system is operated in a pass-through mode and provides the inputs from the touch panel to the secure processor when the POS system is operated in a secure touch mode.

Abstract: A consumer terminal for a point-of-sale (POS) system used in performing a POS transaction between a merchant and a consumer. The consumer terminal includes a display, a touch panel, first electronics in a physically secure area and second electronics in a non-secure area. The first electronics are configured to display a series of screens to guide a consumer through the POS transaction. The second electronics comprises a microcontroller and a secure processor. Upon receiving a request for secure data from the non-secure processor, the secure processor sends a notification to the non-secure processor to exit pass-through mode and enter a secure touch mode. Upon completion of PIN entry, the secure processor instructs non-secure processor to exit secure touch mode and return to pass-through mode.

Abstract: A consumer terminal for a point-of-sale (POS) system used in performing a POS transaction between a merchant and a consumer. The consumer terminal includes a display, a touch panel, first electronics in a physically secure area and second electronics in a non-secure area. The first electronics are configured to display a series of screens to guide a consumer through the POS transaction. The second electronics comprises a microcontroller and a secure processor. Upon receiving a request for secure data from the non-secure processor, the secure processor sends a notification to the non-secure processor to exit pass-through mode and enter a secure touch mode. Upon completion of PIN entry, the secure processor instructs non-secure processor to exit secure touch mode and return to pass-through mode.

Abstract: A consumer terminal for a point-of-sale (POS) system used in performing a POS transaction between a merchant and a consumer. The consumer terminal includes a display, a touch panel, first electronics in a physically secure area and second electronics in a non-secure area. The first electronics are configured to display a series of screens to guide a consumer through the POS transaction. The second electronics comprises a microcontroller and a secure processor. Upon receiving a request for secure data from the non-secure processor, the secure processor sends a notification to the non-secure processor to exit pass-through mode and enter a secure touch mode. Upon completion of PIN entry, the secure processor instructs non-secure processor to exit secure touch mode and return to pass-through mode.

Abstract: A tamper-proof computing device used in conducting a point-of-sale transaction. The tamper-proof computing device comprises a touch-screen display. In some embodiments, an ITO layer is deposited on the touch-screen display that has a tamper line embedded in the ITO layer, such that the tamper line is susceptible to breaking upon unauthorized physical manipulation, and the tamper line is in communication with a microcontroller that is configured to detect the tamper, and to render the tamper-proof computing device inoperable. The tamper line can be a single line trace embedded in the ITO layer or a cluster of traces embedded in the ITO layer. A method of manufacturing comprises forming a tamper line in an ITO layer, depositing the ITO layer on the display and coupling the tamper line to a security microcontroller.