The 3DS Server to DS links for AReq/ARes and RReq/RRes and the DS to ACS links for the same pairs use TLS with the Annex D cipher suites and mutual authentication, with X.509 certificates for both parties signed by the DS certificate authority, the 3DS Server selecting the right certificate where it links to several DSs.
This control maps to 3 controls across 1 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.
Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.
The graph holds this control, the 3 it maps to, and the evidence behind each claim, over MCP and REST.