Table 1 Comparative analysis of post-quantum cryptography (PQC) schemes for resource-constrained IoMT devices.
From: Secure edge-based IoMT framework for ICU monitoring with TinyML and post-quantum cryptography
Algorithm | Key size (kB) | Enc/dec time (ms) | Memory usage | NIST | Suitability for ESP32 |
|---|---|---|---|---|---|
Kyber 512 | 0.8–1.2 | \(\sim\) 1.8 | Low | 1 | Best fit |
Dilithium | 2.5–3.0 | \(\sim\) 5.0 | Medium | 2 | High overhead |
Falcon | 0.6–1.0 | \(\sim\) 3.2 | Medium | 5 | Not supported in liboqs-embedded |
SPHINCS+ | 8.0–12.0 | \(\sim\) 10 | High | 3 | Too large for constrained devices |
