A Practical Methodology for Measuring the Side- Channel Signal - - PowerPoint PPT Presentation
A Practical Methodology for Measuring the Side- Channel Signal Available to the Attacker for Instruction- Level Events Robert Callan, Alenka Zajic, and Milos Prvulovic @ MICRO14 (Paper #48) EECS 573 Sung Kim and Siying Feng 6/7/2017 1 1
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Crypto routine Guesses about secret data (e.g., private key) Statistical test
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[*] T. Popp, S. Mangard and E. Oswald, "Power Analysis Attacks and Countermeasures," IEEE Design & Test of Computers, 2007.
One example incorrect hypothesis Correct hypothesis
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[*] Figure from R. Callan et al., 2014
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[*] Figure from R. Callan et al., 2014
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[*] Figure from R. Callan et al., 2014 while(1) { for( … ) { Do inst. A } for( … ) { Do inst. B } }
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laptop at 50 cm and 100 cm
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[*] Figure from R. Callan et al., 2014
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[*] Figure from R. Callan et al., 2014
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[*] Figure from R. Callan et al., 2014
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the arithmetic/L1 group, DIV
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[*] Figure from R. Callan et al., 2014
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[*] Figure from R. Callan et al., 2014
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Core 2 Duo Pentium 3 M
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10 cm 50 cm 100 cm
[*] Figure from R. Callan et al., 2014
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program execution
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