SM-DP+ (Subscription Manager Data Preparation Plus)

Also known as: Subscription Manager Data Preparation Plus

SM-DP+ is the server in the GSMA consumer RSP (SGP.22) architecture that prepares, protects and delivers eSIM profiles to eUICCs on demand. It authenticates the eUICC using its EUM certificate, binds the profile to that specific eUICC and pushes it through a mutually authenticated TLS session initiated by the LPA on the device.

Categories: Identity and SubscriberSecurity ControlsProtocols and Standards

SM-DP+ in context

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.

Security controls span signaling firewalls (SS7/Diameter/GTP screening), transport encryption (IPsec, TLS, PRINS), identity and access on OSS/BSS, and monitoring at both packet and log level. Controls are audited against GSMA FS.11/FS.19/FS.20/FS.36.

To place SM-DP+ in the wider telecom-security picture, review RSP, Key Management, eSIM Profile Theft, eUICC, GBA and OASIS: each entry cross-references back to this page so you can walk the topic in either direction.

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