🔑 AS Security Key Hierarchy – 2D View
Step‑by‑step KDF (based on TS 33.501)
Click Compute to see derivation.
⚙️ Key Derivation Parameters (TS 38.331 5.3.1.2)
📥 Inputs (PPT example defaults)
KAMF (hex):
UL NAS COUNT (hex 4B):
Access Type (hex 1B):
Integrity algorithm:
nia0 (0)
128-nia1 (1)
128-nia2 (2)
128-nia3 (3)
Ciphering algorithm:
nea0 (0)
128-nea1 (1)
128-nea2 (2)
128-nea3 (3)
AS security active:
Compute Keys
📊 Derived Keys (full hex)
KgNB:
KRRCint:
KRRCenc:
KUPint:
KUPenc: