Side-Channel Attack against CRYSTALS-Kyber

CRYSTALS-Kyber is one of the public-key algorithms currently recommended by NIST as part of its post-quantum cryptography standardization process.

Researchers have just published a side-channel attack—using power consumption—against an implementation of the algorithm that was supposed to be resistant against that sort of attack.

The algorithm is not “broken” or “cracked”—despite headlines to the contrary—this is just a side-channel attack. What makes this work really interesting is that the researchers used a machine-learning model to train the system to exploit the side channel…

February 28, 2023
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Researchers’ Quantum Threat Debunked, RSA Safe for Now

In a paper published late last month, 24 Chinese researchers suggested that RSA-2048 encryption could be broken using a quantum computer with 372 physical quantum bits. Cryptographer Bruce Schneier drew attention to the paper [PDF] last week in a blog post, noting that IBM recently announced a 433-qubit quantum computer, far exceeding the researchers’ stated […]

The post Researchers’ Quantum Threat Debunked, RSA Safe for Now appeared first on eSecurityPlanet.

January 10, 2023
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