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REMOTE DISPLAY TAMPER DETECTION USING DATA INTEGRITY OPERATIONS

  • US 20080120191A1
  • Filed: 11/21/2006
  • Published: 05/22/2008
  • Est. Priority Date: 11/21/2006
  • Status: Active Grant
First Claim
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1. A method for detecting tampering of a remote display having an associated remote display security module, comprising the steps of:

  • generating at a secure module a first data integrity result by performing a first data integrity operation on display data to be displayed on the remote display;

    transmitting the display data from the secure module to the remote display security module;

    receiving at the remote display security module the display data;

    generating a second data integrity result at the remote display security module by performing the first data integrity operation on the received display data; and

    determining that the remote display has been tampered with at the secure module if the first data integrity result does not match the second data integrity result.

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