RadioLink Security Model

Security Goals

• Confidentiality • Integrity • Authenticity • Replay protection

Threat Model

Attacker may: • inject arbitrary radio frames • replay captured traffic • attempt parser exploitation

Attacker does NOT possess the shared secret key.

Cryptographic Design

Encryption: AES‑128 CTR

Authentication: AES‑CMAC‑128

MAC Coverage:

CMAC(header || ciphertext)