Definition ∞ A side-channel refers to an indirect information leakage path from a computer system or cryptographic device. These channels exploit physical characteristics, such as timing information, power consumption, or electromagnetic radiation, to deduce sensitive data. Side-channel attacks do not target algorithmic weaknesses but rather the physical implementation of cryptographic operations. They represent a significant security vulnerability.
Context ∞ In the digital asset and blockchain domain, side-channel attacks pose a threat to the security of hardware wallets, secure enclaves, and other cryptographic devices used to protect private keys. News occasionally reports on research or proof-of-concept attacks demonstrating these vulnerabilities, highlighting the importance of robust hardware security. Discussions often center on mitigating these risks through secure hardware design and vigilant software updates. Protecting digital assets from such advanced attack vectors remains an ongoing concern for the industry.
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