Ncr Corporation

David Sleeman

Alexander William Whytock

Colin Sinclair

Graeme Mitchell

Gordon David Chisholm

Kevin Horgan

Various embodiments include composite security interconnect devices and methods. One method embodiment that may be performed by a composite security interconnect device, also referred to herein as a security controller, includes decrypting a first encrypted input received from a peripheral device with a first encryption key to obtain clear text. The first encryption key may be an encryption key established between the security controller and the peripheral device. The method further includes encrypting the clear text with a second encryption key to obtain second encrypted input, the second encryption key being a key of an encryption key pair established with a transaction processing host.

Composite security interconnect device and methods

A hardware encryption device comprises: a touch panel controller; and a cryptographic engine in communication with the touch panel controller. The touch panel controller receives co-ordinates from the cryptographic engine corresponding to an area on a touch panel selected by a user. The cryptographic engine is operable to discriminate between a selection in a secure area on a screen and a selection in a non-secure area on a screen, and to action the selection differently depending on whether the selection is in a secure area or a non-secure area.

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Dundee, United Kingdom

David Sleeman