Post-Quantum Cryptography: An Analysis of Code-Based and Lattice-Based Cryptosystems

Fuente: arXiv
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Autore principale: Meyer, Alexander
Natura: Preprint
Pubblicazione: 2025
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author Meyer, Alexander
author_facet Meyer, Alexander
contents Most modern cryptographic systems, such as RSA and the Diffie-Hellman Key Exchange, rely on "trapdoor" mathematical functions that are presumed to be computationally difficult with existing tools. However, quantum computers will be able to break these systems using Shor's Algorithm, necessitating the development of quantum-resistant alternatives. We first examine the McEliece cryptosystem, a code-based scheme believed to be secure against quantum attacks due to the hardness of decoding arbitrary linear codes. We then explore NTRU, a lattice-based system grounded in the difficulty of solving the Shortest Vector Problem. Finally, we establish connections between the structural foundations and security of the two systems.
format Preprint
id arxiv_https___arxiv_org_abs_2505_08791
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Post-Quantum Cryptography: An Analysis of Code-Based and Lattice-Based Cryptosystems
Meyer, Alexander
Cryptography and Security
Information Theory
94A60
Most modern cryptographic systems, such as RSA and the Diffie-Hellman Key Exchange, rely on "trapdoor" mathematical functions that are presumed to be computationally difficult with existing tools. However, quantum computers will be able to break these systems using Shor's Algorithm, necessitating the development of quantum-resistant alternatives. We first examine the McEliece cryptosystem, a code-based scheme believed to be secure against quantum attacks due to the hardness of decoding arbitrary linear codes. We then explore NTRU, a lattice-based system grounded in the difficulty of solving the Shortest Vector Problem. Finally, we establish connections between the structural foundations and security of the two systems.
title Post-Quantum Cryptography: An Analysis of Code-Based and Lattice-Based Cryptosystems
topic Cryptography and Security
Information Theory
94A60
url https://arxiv.org/abs/2505.08791