Whitepaper Nº06·Core & Security·June 2026
5G Security: What Got Fixed, What Got Deferred
Beyond the key ladder: what 5G fixed at the interconnect, and the security gaps 3GPP itself still calls open.
Abstract
5G fixed interconnect attribution with signed inter-operator messaging through SEPPs, but GSMA concluded plain TLS, not PRINS, for its first roaming phase, and 3GPP says the ecosystem “still needs to fully embrace” the model. Nine 256-bit algorithms are specified yet referenced nowhere in the spec.
Headline finding
Nine 256-bit algorithm specs published, yet zero appear in TS 33.501 (per grep)
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This paper deepens one of our guides. If you want the shorter version first, read that.
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