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Researchers Find Way to Recover Cryptographic Keys by Analyzing LED Flickers
July 1, 2023, 10:01 p.m. | NIST
The RISKS Digest catless.ncl.ac.uk
In what's an ingenious side-channel attack
<https://csrc.nist.gov/glossary/term/side_channel_attack>, a group of
academics has found that it's possible to recover secret keys from a device
by analyzing video footage of its power LED.
“Cryptographic computations performed by the CPU change the power
consumption of the device which affects the brightness of the device's power
LED,'' researchers from the Ben-Gurion University of the Negev and Cornell
University said <https://www.nassiben.com/video-based-crypta> in a study.
By taking advantage of this observation, it's …
academics attack change channel cpu device find footage keys led power recover researchers secret secret keys side-channel side-channel attack video
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