name: FIPS
full_form: Federal Information Processing Standard
context: still do some actions, e.g. delete/store PLMN, delete security context, etc. With this solution, all the causes other than "PLMN not allowed" in NAS Reject can be integrity protected, which includes redirection to LTE. Moreover, if new feature is added in NAS Reject message, it could also be covered by this solution. For CIoT UE, backward compatibility is not needed to be considered, feature negotiation is not needed. UE and network support this feature in the first release just like ABBA. UE Impact: SIM card is provisioned with a public key of UDM, which may be the same key to protect SUCI, SIM card is not impacted. ME supports DSS (e.g. FIPS 186-4) to verify integrity of NAS Reject message. RAN Impact: none VPLMN impact: vAMF supportsw generation and storage of public key pair. vAMF supports authorization procedure. vAMF supports DSS (e.g. FIPS 186-4) to sign NAS Reject message. HPLMN impact: hUDM supports to authorization procedure. hUDM supports DSS (e.g. FIPS 186-4) to sign the
description: Federal Information Processing Standard (FIPS) is a standard that defines cryptographic algorithms and techniques used in telecommunications. In this context, it's specifically mentioned in relation to the Digital Signature Scheme (DSS), which ensures the integrity of NAS Reject messages.
explanation: The text refers to FIPS as a standard for DSS, a cryptographic technique used in telecommunications for message integrity protection. This classification as a Specification is based on its role in defining and regulating cryptographic practices within the telecommunications domain.
section_title: 6.21.3	Evaluation
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