ECDH
Pre-Quantum · Elliptic Curves · nvlpubs.nist.gov(opens in a new tab)
- Programmes
- Classic
- Status
- Classic cryptography
- Security flags
- Pre-quantum (all sets)
Parameter sets
| Parameter set | Level | pk (B) | ct (B) | pk+ct (B) | Keygen | Encaps | Decaps |
|---|---|---|---|---|---|---|---|
| X25519 Pre-quantum | Pre-quantum | 32 | 32 | 64 | 33.2 µs | 62.2 µs | 31.8 µs |
| X448 Pre-quantum | Pre-quantum | 56 | 56 | 112 | 142.2 µs | 296.8 µs | 157.8 µs |
| P-256 Pre-quantum | Pre-quantum | 65 | 65 | 130 | 16.3 µs | 73.0 µs | 59.9 µs |
| P-384 Pre-quantum | Pre-quantum | 97 | 97 | 194 | 111.5 µs | 388.9 µs | 269.5 µs |
Wall-clock times vary between runs and machines (CPU frequency scaling, other tenants on cloud VMs); cycle counts are the steadier basis for comparison.
Security flags
- Pre-quantum (all parameter sets): Not quantum-resistant: security rests on classical assumptions only. Listed as a reference point.
History
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