Subsequent CoAP Round-Trip Time on ESP32 DTLS Environment 1.3
16RTT (ms)Plain CoAP
Evaluation results
| Method | Links | |
|---|---|---|
| Plain CoAPDTLS=None2026.03 | 16 | |
| ECDHE P-256 + ECDSAKey Exchange=ECDHE P-256, Signature=ECDSA, Verify=disabled2026.03 | 23 | |
| X25519 + ECDSAKey Exchange=X25519, Signature=ECDSA, Verify=enabled2026.03 | 23 | |
| ECDHE P-256 + ECDSAKey Exchange=ECDHE P-256, Signature=ECDSA, Verify=enabled2026.03 | 24 | |
| X25519 + ECDSAKey Exchange=X25519, Signature=ECDSA, Verify=disabled2026.03 | 24 | |
| ML-KEM-512 + ECDSAKey Exchange=ML-KEM-512, Signature=ECDSA, Verify=disabled2026.03 | 24 | |
| ECDHE P-256 + ML-DSA-44Key Exchange=ECDHE P-256, Signature=ML-DSA-44, Verify=disabled2026.03 | 24 | |
| ECDHE P-256 + ML-DSA-44Key Exchange=ECDHE P-256, Signature=ML-DSA-44, Verify=enabled2026.03 | 24 | |
| X25519 + ML-DSA-44Key Exchange=X25519, Signature=ML-DSA-44, Verify=enabled2026.03 | 24 | |
| ML-KEM-512 + ECDSAKey Exchange=ML-KEM-512, Signature=ECDSA, Verify=enabled2026.03 | 25 | |
| X25519 + ML-DSA-44Key Exchange=X25519, Signature=ML-DSA-44, Verify=disabled2026.03 | 25 | |
| ML-KEM-512 + ML-DSA-44Key Exchange=ML-KEM-512, Signature=ML-DSA-44, Verify=disabled2026.03 | 25 | |
| ML-KEM-512 + ML-DSA-44Key Exchange=ML-KEM-512, Signature=ML-DSA-44, Verify=enabled2026.03 | 25 |