Introduction
Electronic devices have to comply with consumption constraints especially on autonomous equipments, like mobile phones. Power analysis has been included into most certification processes regarding products dealing with information security such as smart cards.
The electrical consumption of any electronic device can be measured with a resistor inserted between the ground or Vcc pins and the actual ground in order to transform the supplied current into a voltage easily monitored with an oscilloscope.
Within a microcontroller the peripherals consume differently. For instance, writing into nonvolatile memory requires more energy than reading. Certain chips for smart cards enclose a crypto-processor, that is, a particular device dedicated to specific cryptographic operations, which generally entails a consumption increase. The consumption trace of a program running inside a microcontroller or a microprocessor is full of information. The signal analysis may disclose lots of...
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Joye, M., Olivier, F. (2011). Side-Channel Analysis. In: van Tilborg, H.C.A., Jajodia, S. (eds) Encyclopedia of Cryptography and Security. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-5906-5_516
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