# IMSI change SIM applet

Display and change the IMSI of the SIM. This is a standalone version of a debug
feature in the more complex IMSI Pseudonymization applet. To be used as example
code to build other applets.

### How to flash

```
$ cp .sim-keys.example .sim-keys
$ nvim .sim-keys # adjust KIC1, KID1
$ make flash
```

Before flashing a second time, remove the sim applet:

```
$ make remove
```

### Related

* [IMSI Pseudonymization](https://osmocom.org/projects/imsi-pseudo/wiki)
* [Shadysimply in Osmocom wiki](https://osmocom.org/projects/cellular-infrastructure/wiki/Shadysimpy)