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The main challenge when implementing cryptographic algorithms in hardware is to protect them against attacks that target directly the device. Two strategies are customarily employed by malevolent adversaries: observation and differential perturbation attacks, also called SCA and DFA in the abundant scientific literature on this topic. Numerous research efforts have been carried out to defeat respectively...
The security of cryptographic implementations relies not only on the algorithm quality but also on the countermeasures to thwart attacks aiming at disclosing the secrecy. These attacks can take advantage of leakages of the secret appearing through the power consumption or the electromagnetic radiations also called ??Side Channels??. This is for instance the case of the Differential Power Analysis...
Straightforward implementations of cryptographic algorithms are known to be vulnerable to attacks aimed not at the mathematical structure of the cipher but rather at the weak points of the electronic devices which implement it. These attacks, known as side-channel attacks, have proved to be very powerful in retrieving secret keys from any kind of unprotected electronic device. Amongst the various...
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