A sleep-induced context-switch power spike, whose amplitude leaks the previous program's register values and residual power, is used to recover cryptographic keys from AES and SIKE.
Evilcs: An evaluation of information leakage through context switching on security enclaves,
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SleepWalk: Exploiting Context Switching and Residual Power for Physical Side-Channel Attacks
A sleep-induced context-switch power spike, whose amplitude leaks the previous program's register values and residual power, is used to recover cryptographic keys from AES and SIKE.