Криптография на решетках

Квантово-устойчивая защита.

Lattice-based crypto is the primary defense against quantum computers. It uses problems like SVP and CVP which lack the periodic structure vulnerable to Shor's algorithm. Most practical schemes use Learning With Errors (LWE). Standards like Kyber and Dilithium are being deployed globally in 2026. Beyond basic encryption, lattices enable advanced primitives like FHE.

        graph LR
  Center["Криптография на решетках"]:::main
  Pre_linear_algebra["linear-algebra"]:::pre --> Center
  click Pre_linear_algebra "/terms/linear-algebra"
  Pre_post_quantum_cryptography["post-quantum-cryptography"]:::pre --> Center
  click Pre_post_quantum_cryptography "/terms/post-quantum-cryptography"
  Rel_homomorphic_encryption["homomorphic-encryption"]:::related -.-> Center
  click Rel_homomorphic_encryption "/terms/homomorphic-encryption"
  Rel_post_quantum_cryptography["post-quantum-cryptography"]:::related -.-> Center
  click Rel_post_quantum_cryptography "/terms/post-quantum-cryptography"
  Rel_superconducting_qubits["superconducting-qubits"]:::related -.-> Center
  click Rel_superconducting_qubits "/terms/superconducting-qubits"
  classDef main fill:#7c3aed,stroke:#8b5cf6,stroke-width:2px,color:white,font-weight:bold,rx:5,ry:5;
  classDef pre fill:#0f172a,stroke:#3b82f6,color:#94a3b8,rx:5,ry:5;
  classDef child fill:#0f172a,stroke:#10b981,color:#94a3b8,rx:5,ry:5;
  classDef related fill:#0f172a,stroke:#8b5cf6,stroke-dasharray: 5 5,color:#94a3b8,rx:5,ry:5;
  linkStyle default stroke:#4b5563,stroke-width:2px;

      

🧒 Простыми словами

Это как спрятать иголку в многомерном стоге сена. Ты ставишь точку в гигантской сетке из миллиардов узлов. Найти дорогу к этой точке настолько сложно, что даже квантовый компьютер «заблудится» и не сможет ее найти.

🤓 Expert Deep Dive

Core primitives include Standard LWE, Module-LWE, and SIS. Security relies on worst-to-average case reductions. NIST standards utilize Module-LWE for optimized key sizes. Hardware bottlenecks (Polynomial multi) are being solved via NTT-accelerated CPUs. Side-channel resistance is a major focus for 2026 enterprise deployments.

🔗 Связанные термины

Предварительные знания:

📚 Источники