Side-Channel Attack
Security● Common
Attacks extracting secret information by analyzing physical emanations during cryptographic operations: timing variations, power consumption, electromagnetic emissions, or acoustic signals. Can reveal private keys from hardware wallets or signing devices.
Technical Notes
Types: timing attacks (execution time reveals data), power analysis (DPA/SPA), EM emanations, cache timing, acoustic. Mitigations: constant-time code (libsecp256k1), power filtering, EM shielding, noise injection. Secure elements designed to resist these.
Metadata
Visibility: Public
Created:1/3/2026by System