PQC concepts
What is Lattice-based cryptography?
Cryptography whose security reduces to the hardness of problems on mathematical lattices (Learning With Errors, Module-LWE, NTRU). ML-KEM, ML-DSA, FN-DSA are all lattice-based. Most widely deployed PQC family in 2026.
Decision context
Why Lattice-based cryptography matters
Lattice constructions underpin several leading post-quantum standards and candidates, but the family contains different problem structures, parameter sets and implementation risks. A broad family label does not determine a scheme's security level, protocol suitability, standardization status or implementation assurance.
How to evaluate Lattice-based cryptography
Name the exact scheme, parameter set and security reduction instead of relying on the word lattice. Verify serialization, sampling, arithmetic, constant-time behaviour and vectors in the selected implementation. Use algorithm-family diversity only where the architecture and evidence actually support it.
PQC concepts
PQC concepts evidence boundary
Post-quantum programmes combine cryptography, architecture, data lifetime, operational ownership, and migration governance. A concept is useful only when it changes a concrete inventory, policy, design, test, or evidence decision. Treat terminology as a decision aid rather than proof that a control exists.
FAQ
Common questions
What is Lattice-based cryptography?
Cryptography whose security reduces to the hardness of problems on mathematical lattices (Learning With Errors, Module-LWE, NTRU). ML-KEM, ML-DSA, FN-DSA are all lattice-based. Most widely deployed PQC family in 2026.
Why does Lattice-based cryptography matter?
Lattice constructions underpin several leading post-quantum standards and candidates, but the family contains different problem structures, parameter sets and implementation risks. A broad family label does not determine a scheme's security level, protocol suitability, standardization status or implementation assurance.
How should Lattice-based cryptography be evaluated?
Name the exact scheme, parameter set and security reduction instead of relying on the word lattice. Verify serialization, sampling, arithmetic, constant-time behaviour and vectors in the selected implementation. Use algorithm-family diversity only where the architecture and evidence actually support it.
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