This is a potential security issue, you are being redirected to https://csrc.nist.gov.
An attack enabled by leakage of information from a physical cryptosystem. Characteristics that could be exploited in a side-channel attack include timing, power consumption, and electromagnetic and acoustic emissions.
NIST SP 1800-21B under Side-Channel Attacks from NIST SP 800-63-3
NIST SP 800-63-3