Definition ∞ Side-Channel Attacks are a class of security attacks that exploit information leaked from the physical implementation of a cryptosystem, rather than direct algorithmic weaknesses. This leaked information can include timing variations, power consumption, or electromagnetic radiation. Such attacks aim to infer secret cryptographic keys or other sensitive data by analyzing these physical emanations.
Context ∞ Side-channel attacks represent a sophisticated threat vector, particularly relevant in hardware security and embedded systems that may underpin certain digital asset operations. Awareness and mitigation strategies, such as constant-time execution and physical shielding, are critical for protecting cryptographic operations in sensitive environments.
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