NIST Selects HQC as Backup Post-Quantum Encryption Algorithm
Mohamed Abdel-Kareem2025-03-27T10:59:49-07:00The National Institute of Standards and Technology (NIST) has selected HQC (Hamming Quasi-Cyclic) as a backup algorithm for post-quantum encryption, supplementing the primary ML-KEM algorithm standardized in 2024. HQC, based on error-correcting codes, provides a mathematically distinct alternative to ML-KEM, which relies on structured lattices. This selection ensures a second line of defense in case vulnerabilities are discovered in ML-KEM. NIST plans to release a draft standard for HQC in 2026, with finalization expected in 2027. HQC joins NIST’s portfolio of post-quantum cryptographic algorithms, which includes FIPS 203 (ML-KEM), FIPS 204, and FIPS 205 for digital signatures. These standards are designed to protect sensitive data from future quantum computing threats. HQC’s selection follows a rigorous [...]