Electromagnetic (EM) attack: Measures and performs a signal analysis on the electromagnetic radiation emitted from a device. Keep on reading: Timing Attacks on Implementations of Diffie-Hellman, RSA, DSS, and Other Systems » Timing attack: Analyzes the time a system spends executing cryptographic algorithms. There are a growing number of known side-channel attack vectors. This attack monitors the electromagnetic field (EMF) radiation emitted by a computer screen to view information before it is encrypted. One such example is van Eck phreaking attack, which is also known as a Transient Electromagnetic Pulse Emanation Standard (TEMPEST). 
Put simply, a side channel attack breaks cryptography by exploiting information inadvertently leaked by a system.
Rather, a side-channel attack attempts to gather information or influence the program execution of a system by measuring or exploiting indirect effects of the system or its hardware. How does a side channel attack work?Ī side-channel attack does not target a program or its code directly. Indeed, many side-channel analysis techniques have proven successful in breaking an algorithmically robust cryptographic operation and extracting the secret key. These attacks pose a serious threat to modules that integrate cryptographic systems. Examples include supply current, execution time, and electromagnetic emission. This can be achieved by measuring or analyzing various physical parameters.
Countermeasures: Preventing Side-channel attacksĪ side-channel attack ( SCA) is a security exploit that attempts to extract secrets from a chip or a system. Technical example of a differential power analysis attack. What attacks use side channel analysis?. In addition, we provide a walkthrough of a DPA attack and explain how different countermeasures with varying levels of effectiveness can be used to prevent side-channel attacks. 
We also explore differential power analysis (DPA), an extremely powerful side-channel attack capable of obtaining and analyzing statistical measurements across multiple operations.
We describe how side-channel attacks work and detail some of the most common attack methodologies. In this blog post, we take an in-depth look at the world of side-channel attacks.
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