APPARATUS AND METHOD FOR SECURING USER INPUT DATA
First Claim
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1. An apparatus to secure input data, comprising:
- a touch panel to receive an input data;
a touch integrated circuit to encrypt input data; and
a main processor to receive encrypted input data;
wherein the touch integrated circuit blocks the main processor from being aware of the content of the input data.
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Abstract
An apparatus and method for securing user input data in an electronic device including an input interface. A touch panel senses touch events in an input interface, a touch integrated circuit receives coordinate data associated with the touch events and encrypts the coordinate data using a secure key. The touch integrated circuit blocks a main processor of the electronic device from being aware that a touch event has been sensed and may directly transmit the coordinate data to a server without the intervention of the main processor.
17 Citations
21 Claims
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1. An apparatus to secure input data, comprising:
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a touch panel to receive an input data; a touch integrated circuit to encrypt input data; and a main processor to receive encrypted input data; wherein the touch integrated circuit blocks the main processor from being aware of the content of the input data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for securing input data in a touch integrated circuit, comprising:
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obtaining a first coordinate data associated with a first touch event of an input of data in a touch panel; storing the first coordinate data; determining if an input of data is completed in the touch panel; generating a first feedback signal; if the input of data is completed encrypting the first coordinate data using a secure key; if the input of data is not completed; obtaining a second coordinate data associated with a second touch event of the input of data in a touch panel; storing the second coordinate data; generating a second feedback signal; determining if the input of data is completed in the touch panel; and if the input of data is completed, encrypting the first and second coordinate data is using a secure key. - View Dependent Claims (14, 15, 16, 17)
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18. A method for securing user input data in an electronic device, comprising:
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in a secure mode, providing an input interface to receive input data; blocking a main processor from being aware of the content of input data; receiving coordinate data about a touch event in a touch integrated circuit; encrypting the coordinate data in the touch integrated circuit using a secure key; and transmitting the encrypted coordinate data. - View Dependent Claims (19, 20, 21)
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Specification