Original Post: Post-quantum cryptography. CRYSTAL-Kyber example | by Kris | Oct, 2024
The article introduces CRYSTAL-Kyber, a post-quantum cryptographic algorithm, explaining its relevance due to the advancement in quantum computing, which could potentially break current cryptographic methods within a decade. Kyber is based on lattice-based cryptography, leveraging the mathematical difficulty of certain lattice problems for security. It functions as a Key Encapsulation Mechanism, allowing secure key exchanges. The article explains that Kyber’s security relies on the Learning With Errors problem, where small errors are introduced to make solving the cipher difficult without a secret key. The text also highlights the availability of open-source libraries for implementing Kyber in various programming languages, while cautioning about potential vulnerabilities, such as KyberSlash. The author indicates that the series will continue with practical examples of using Kyber and invites readers to share their experiences and insights on post-quantum cryptography.
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