Dilithium
ML-DSA-65
100
FIPS 204
Post-quantum digital signatures. Module-LWE lattice. The primary signing algorithm in H33's authentication pipeline.
PK: 1,952 B
Sig: 3,309 B
Level: 3
Kyber
ML-KEM-768
99
FIPS 203
Post-quantum key encapsulation. Establishes quantum-resistant shared secrets for encrypted channels.
PK: 1,184 B
CT: 1,088 B
Level: 3
FALCON
512
99
FIPS 206
Compact post-quantum signatures. NTRU lattice — independent family from Dilithium for defense-in-depth.
PK: 897 B
Sig: 690 B
Level: 1
SPHINCS+
SLH-DSA
98
FIPS 205
Hash-based signatures. Zero lattice assumptions. The conservative choice that survives any mathematical breakthrough.
PK: 32 B
Sig: 7,856-49,856 B
Levels: 1, 3, 5

Comparative Specifications

LibraryStandardLevelPK SizeSig/CT SizeScoreFoundation
Dilithium ML-DSA-65FIPS 20431,952 B3,309 B100Lattice (MLWE)
Kyber ML-KEM-768FIPS 20331,184 B1,088 B99Lattice (MLWE)
FALCON-512FIPS 2061897 B690 B99Lattice (NTRU)
SPHINCS+ SLH-DSAFIPS 2051-532-64 B7.8-49.8 KB98Hash (SHA-2)
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