NIST (National Institute of Standards and Technology)

The US National Institute of Standards and Technology develops the cryptographic and cybersecurity standards that anchor much of the world's security baseline: FIPS 197 (AES), FIPS 186 (digital signatures), the SP 800 series (key management, identity, IoT), the NIST Cybersecurity Framework, and the ongoing Post-Quantum Cryptography standardisation programme.

Categories: Core NetworkIdentity and SubscriberSecurity Controls

NIST in context

The mobile core carries subscriber sessions, mobility and policy. In 4G it is the EPC (MME, HSS, S/PGW); in 5G it is the Service-Based Architecture with AMF, SMF, UPF, AUSF, UDM and the NRF.

Subscriber identifiers (IMSI, SUPI, MSISDN, IMEI) anchor authentication, charging and lawful interception. Any protocol that leaks a permanent identifier is treated as a privacy defect, which is why 5G introduced SUCI concealment on the air interface.

To place NIST in the wider telecom-security picture, review UDM, WPA, WPA3, SBA Token Forgery, 2G and 5G SBA — each entry cross-references back to this page so you can walk the topic in either direction.

Related terms

More from the TelcoSec Glossary

Browse the full TelcoSec Glossary, the Ultimate Guide to Mobile Network Security, or the P1 Arsenal of telecom-security tools.