HMAC-SHA256 (Keyed-Hash Message Authentication Code with SHA-256)
Also known as: HMAC-SHA-256
Categories: Security ControlsProtocols and StandardsInternet and Routing
HMAC-SHA256 in context
Security controls span signaling firewalls (SS7/Diameter/GTP screening), transport encryption (IPsec, TLS, PRINS), identity and access on OSS/BSS, and monitoring at both packet and log level. Controls are audited against GSMA FS.11/FS.19/FS.20/FS.36.
Telecom security is written into standards from 3GPP, GSMA, ETSI, IETF and ITU-T. Understanding which body owns which specification, and how they interlock, is essential for both design and audit work.
To place HMAC-SHA256 in the wider telecom-security picture, review SLH-DSA, 3G, OSPF, SHA, SIP Digest and ML-DSA: each entry cross-references back to this page so you can walk the topic in either direction.
Related terms
Related topic hubs
- 5G Security 5G SBA, SEPP, SUCI, 5G-AKA, N32 and service-based interface security.
- 5G Penetration Testing Pentesting the 5G core, SBA, SEPP, and gNB interfaces.
- 5G Security Training Training on 5G core, SBA, N32, SUCI and radio security.
- Diameter Security 4G/LTE Diameter threats across IPX/roaming and DEA defenses.
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