22.12.2016 Views

Breaking Crypto For Dummies

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Side-channel Basics<br />

• Observe the whole cryptosystem<br />

• Find what is leaking (and, preferably, where)<br />

• Time<br />

• Power consumption<br />

• Electromagnetic field<br />

• Light / Sound / Temperature / …<br />

• …<br />

• Make an assumption on the dependencies between secret state and<br />

observable state<br />

• Leakage model<br />

• Process the observation data & Get the key

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