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    This was brought to you by:

    block this user Sergei Skorobogatov Trusted member

    Senior Research Associate

    University of Cambridge, Computer Lab

    Using Optical Emission Analysis for Estimating Contribution to Power Analysis

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    Abstract—This paper shows that optical emissions from an operating chip have a good correlation with power traces and can therefore be used to estimate the contribution of different areas within the chip. I present a low-cost approach using inexpensive CCD cameras. The technique was used to recover data stored in SRAM, EEPROM and Flash of a 0.9 µm microcontroller. The result of a backside approach in analysing a 0.13 µm chip is also presented. Practical limits for this analysis in terms of sample preparation, operating conditions and chip technology are also discussed. Optical emission analysis can be used for partial reverse engineering of the chip structure by spotting the active areas. This can assist in carrying out optical fault injection attacks later, thereby saving the time otherwise required for exhaustive search.

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    Title : Using Optical Emission Analysis for Estimating Contribution to Power Analysis
    Abstract : Abstract—This paper shows that optical emissions from an operating chip have a good correlation with power traces and can therefore be used to estimate the contribution of different areas within the chip. I present a low-cost approach using inexpensive CCD cameras. The technique was used to recover data stored in SRAM, EEPROM and Flash of a 0.9 µm microcontroller. The result of a backside approach in analysing a 0.13 µm chip is also presented. Practical limits for this analysis in terms of sample preparation, operating conditions and chip technology are also discussed. Optical emission analysis can be used for partial reverse engineering of the chip structure by spotting the active areas. This can assist in carrying out optical fault injection attacks later, thereby saving the time otherwise required for exhaustive search.
    Subject : unspecified
    Area : Computer Science
    Language : English
    Affiliations : 
    Url : http://www.cl.cam.ac.uk/~sps32/fdtc2009-opt-emis.pdf
    Doi : 10.1.1.154.8628

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