Cryptographic Algorithm Reference

A comprehensive catalog of 59 cryptographic algorithms with quantum safety analysis, NIST standards references, and migration guidance.

Key Exchange

Algorithm	Quantum Safety	Key Lengths (bits)	FIPS Standard	Migration Target
ECDH-P256	Quantum Unsafe	256	SP 800-56A	ML-KEM-512
ECDH-P384	Quantum Unsafe	384	SP 800-56A	ML-KEM-768
ECDH-P521	Quantum Unsafe	521	SP 800-56A	ML-KEM-1024
X25519	Quantum Unsafe	256	N/A	ML-KEM-512
X448	Quantum Unsafe	448	N/A	ML-KEM-768
DH-1024	Quantum Unsafe	1024	N/A	ML-KEM-512
DH-2048	Quantum Unsafe	2048	SP 800-56A	ML-KEM-768
DH-3072	Quantum Unsafe	3072	SP 800-56A	ML-KEM-768
DH-4096	Quantum Unsafe	4096	SP 800-56A	ML-KEM-1024
NTRU	Quantum Unsafe	509, 677, 821	N/A	ML-KEM-768
ML-KEM-512	Quantum Safe	512	FIPS 203	N/A
ML-KEM-768	Quantum Safe	768	FIPS 203	N/A
ML-KEM-1024	Quantum Safe	1024	FIPS 203	N/A

Algorithm	Quantum Safety	Key Lengths (bits)	FIPS Standard	Migration Target
ECDSA-P256	Quantum Unsafe	256	FIPS 186-5	ML-DSA-44
ECDSA-P384	Quantum Unsafe	384	FIPS 186-5	ML-DSA-65
ECDSA-P521	Quantum Unsafe	521	FIPS 186-5	ML-DSA-87
Ed25519	Quantum Unsafe	256	N/A	ML-DSA-44
Ed448	Quantum Unsafe	448	N/A	ML-DSA-65
DSA-1024	Quantum Unsafe	1024	FIPS 186-4 (deprecated)	ML-DSA-44
DSA-2048	Quantum Unsafe	2048	FIPS 186-5	ML-DSA-44
DSA-3072	Quantum Unsafe	3072	FIPS 186-5	ML-DSA-65
ML-DSA-44	Quantum Safe	1312	FIPS 204	N/A
ML-DSA-65	Quantum Safe	1952	FIPS 204	N/A
ML-DSA-87	Quantum Safe	2592	FIPS 204	N/A
SLH-DSA-128s	Quantum Safe	128	FIPS 205	N/A
SLH-DSA-128f	Quantum Safe	128	FIPS 205	N/A
SLH-DSA-192s	Quantum Safe	192	FIPS 205	N/A
SLH-DSA-192f	Quantum Safe	192	FIPS 205	N/A
SLH-DSA-256s	Quantum Safe	256	FIPS 205	N/A
SLH-DSA-256f	Quantum Safe	256	FIPS 205	N/A
FN-DSA-512	Quantum Safe	512	FIPS 206 (draft)	N/A
FN-DSA-1024	Quantum Safe	1024	FIPS 206 (draft)	N/A
XMSS	Quantum Safe	256, 512	N/A	N/A

Algorithm	Quantum Safety	Key Lengths (bits)	FIPS Standard	Migration Target
RSA-1024	Quantum Unsafe	1024	FIPS 186-4 (deprecated key size)	ML-KEM-768
RSA-2048	Quantum Unsafe	2048	FIPS 186-5	ML-KEM-768
RSA-3072	Quantum Unsafe	3072	FIPS 186-5	ML-KEM-1024
RSA-4096	Quantum Unsafe	4096	FIPS 186-5	ML-KEM-1024
ElGamal	Quantum Unsafe	2048, 3072, 4096	N/A	ML-KEM-768
AES-128	Conditional	128	FIPS 197	AES-256
AES-192	Conditional	192	FIPS 197	N/A
AES-256	Conditional	256	FIPS 197	N/A
ChaCha20-Poly1305	Conditional	256	N/A	N/A
Camellia-256	Conditional	256	N/A	N/A
3DES	Conditional	168	SP 800-67 Rev. 2 (deprecated)	AES-256
RC4	Conditional	40, 128, 256	N/A	AES-256

Algorithm	Quantum Safety	Key Lengths (bits)	FIPS Standard	Migration Target
SHA-256	Conditional	256	FIPS 180-4	N/A
SHA-384	Conditional	384	FIPS 180-4	N/A
SHA-512	Conditional	512	FIPS 180-4	N/A
SHA-3-256	Conditional	256	FIPS 202	N/A
SHA-3-384	Conditional	384	FIPS 202	N/A
SHA-3-512	Conditional	512	FIPS 202	N/A
BLAKE2b	Conditional	512	N/A	N/A
BLAKE2s	Conditional	256	N/A	N/A
MD5	Conditional	128	N/A	SHA-256
SHA-1	Conditional	160	FIPS 180-4 (deprecated for signatures)	SHA-256

Algorithm	Quantum Safety	Key Lengths (bits)	FIPS Standard	Migration Target
HMAC-SHA-256	Conditional	256	FIPS 198-1	N/A
HMAC-SHA-384	Conditional	384	FIPS 198-1	N/A
HMAC-SHA-512	Conditional	512	FIPS 198-1	N/A
Poly1305	Conditional	256	N/A	N/A