# Concepts of RSP

## Terms

Here is a short overview of some of the abbreviations used in this documentation.

| Abbreviation | Description                                                                                                                                                                                                                                                                                 |
| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| UICC         | Universal Integrated Circuit Card a.k.a Sim card                                                                                                                                                                                                                                            |
| eUICC        | Embedded UICC                                                                                                                                                                                                                                                                               |
| EID          | eUICC-ID                                                                                                                                                                                                                                                                                    |
| ICCID        | Integrated Circuit Card ID                                                                                                                                                                                                                                                                  |
| MNO          | Mobile Network Operator                                                                                                                                                                                                                                                                     |
| SM-SR        | Subscription Manager Secure Routing. This entity securely delivers the encrypted operator credentials to the SIM and then, once the credentials are installed, remotely manages the SIM thereafter (enable, disable and delete the credentials as necessary during the product’s lifetime). |
| SM-DP        | Subscription Manager Data Preparation. This is the entity which operators use to securely encrypt their operator credentials ready for over the air installation within the SIM.                                                                                                            |
| ISD-R        | Issuer Security Domain Root                                                                                                                                                                                                                                                                 |
| RPS          | Remote Provisioning Specification                                                                                                                                                                                                                                                           |
| mTLS         | Mutual TLS authentication                                                                                                                                                                                                                                                                   |

## Architecture

The picture below shows the standard RSP architecture as taken from the specifications document:

![Source: https://www.gsma.com/newsroom/resources/sgp-02-v3-2-remote-provisioning-architecture-for-embedded-uicc-technical-specification/](/files/-MK9gnIPtjAMDSH0womJ)

### How the RSP Gateway is positioned

![](/files/ytoCDU8Q2ms7azr9xtk1)

The KPN RSP Gateway is a gateway to KPN's ES2 and ES4 interfaces, to allow you to control your own SIM cards and virtual profiles.


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