In computer security, a side-channel attack is a type of security exploit that uses information inadvertently leaked by a system—such as timing, power consumption, or electromagnetic or acoustic emissions—to gain unauthorized access to sensitive information. These attacks differ from those targeting flaws in the design of cryptographic protocols or algorithms (notwithstanding the fact that cryptanalysis may identify vulnerabilities relevant to both types of attacks).
In computer security, a side-channel attack is a type of security exploit that uses information inadvertently leaked by a system—such as timing, power consumption, or electromagnetic or acoustic emissions—to gain unauthorized access to sensitive information. These attacks differ from those targeting flaws in the design of cryptographic protocols or algorithms (notwithstanding the fact that cryptanalysis may identify vulnerabilities relevant to both types of attacks).
Source: Wikipedia "Side-channel attack" · CC BY-SA 4.0
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