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rApp/xApp Attestation: A New Security Use Case for O-RAN

arXiv cs.CRby Hamed Alimohammadi ()1 min read1
Read at arxiv.org
AI summary · grok-4.7Summaries by Vani AI

Researchers propose runtime rApp and xApp attestation for O-RAN, with a prototype under 40 milliseconds.

The paper argues that O-RAN onboarding and authentication controls do not verify that deployed rApps and xApps stay untampered at runtime. It defines rApp/xApp attestation as a RIC-native use case that reuses existing integrity checks through attestation modules, agents, RIC interfaces, and SMO policy, and maps needed O-RAN Alliance extensions. A lightweight hash-based prototype on the Near-RT RIC completed attestation in under 40 ms across several hash functions. Remaining gaps include trusted verification, known-good runtime states, scalability, and mitigation policy.

Key facts
  • O-RAN specs lack runtime integrity checks for deployed rApps and xApps.
  • The paper maps attestation into RIC interfaces and SMO policy coordination.
  • A hash-based Near-RT RIC prototype attested apps in under 40 milliseconds.
  • Open issues include trusted verification, known-good states, and mitigation policy.
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Tags
o-ranattestation5gricrappxappruntime-integrity
Products
O-RANNear-RT RIC
Organizations
O-RAN Alliance

From the original article

1 min read at arxiv.org

The disaggregation and softwarization introduced by the Open Radio Access Network (O-RAN) architecture enable multi-vendor innovation but also expose the RAN Intelligent Controller (RIC) ecosystem to new runtime security risks.

arXiv cs.CR

By Hamed Alimohammadi · arxiv.org

Read the full article at arXiv cs.CR

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.