Category: quantum cryptography

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Lattice-Based Cryptosystems and Quantum Cryptanalysis

Posted on By infossl
cryptography, essays, quantum computing, quantum cryptography, Security technology, Uncategorized

Quantum computers are probably coming, though we don’t know when—and when they arrive, they will, most likely, be able to break our standard public-key cryptography algorithms. In anticipation of this possibility, cryptographers have been working on quantum-resistant public-key algorithms. The National Institute for Standards and Technology (NIST) has been hosting a competition since 2017, and … Read More “Lattice-Based Cryptosystems and Quantum Cryptanalysis” »

New Lattice Cryptanalytic Technique

Posted on By infossl
cryptanalysis, cryptography, quantum cryptography, Security technology, Uncategorized

A new paper presents a polynomial-time quantum algorithm for solving certain hard lattice problems. This could be a big deal for post-quantum cryptographic algorithms, since many of them base their security on hard lattice problems. A few things to note. One, this paper has not yet been peer reviewed. As this comment points out: “We … Read More “New Lattice Cryptanalytic Technique” »

Side-Channel Attack against CRYSTALS-Kyber

Posted on By infossl
academic papers, cryptography, encryption, machine learning, quantum computing, quantum cryptography, Security technology, side-channel attacks, Uncategorized

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 … Read More “Side-Channel Attack against CRYSTALS-Kyber” »

NIST’s Post-Quantum Cryptography Standards

Posted on By infossl
algorithms, cryptanalysis, cryptography, nist, quantum computing, quantum cryptography, Security technology, Uncategorized

Quantum computing is a completely new paradigm for computers. A quantum computer uses quantum properties such as superposition, which allows a qubit (a quantum bit) to be neither 0 nor 1, but something much more complicated. In theory, such a computer can solve problems too complex for conventional computers. Current quantum computers are still toy … Read More “NIST’s Post-Quantum Cryptography Standards” »