Cellular Network Infrastructure » IMSI Pseudonymization

spec: mention more EF to invalidate

IMSIPseudo.java: Cosmetic: fix missing space

Invalidate Kc, too

Invalidate TMSI, P-TMSI after changing IMSI

Now the ME doesn't try to send the TMSI anymore in the next Location
Updating Request, it directly sends the IMSI.

add SIM REFRESH command after IMSI change

add make reflash

Makefile: add some .PHONY

add 'make list'

Test: Bytes.toStr()

refactor the menu, the mi2str() implementation, and tests

Instead of a sub-menu for changing the IMSI, just offer a dialog with the
current IMSI pre-filled in an edit field.
"Show IMSI" becomes just "Change IMSI" without changing anything.

Change mi2str() so that it simply returns a byte[] of the right size....

make writeIMSI() safe against invalid length

drop unnecessary 'new byte[]' before {...}

prompt(): add prefillVal arg

add Bytes.java

eliminate itemCount param from showMenu()

write user entered IMSI to SIM

add MobileIdentity as separate class, add test

Use fixed applet-project.mk to put Mobile Identity implementations in a
separate class MobileIdentity.java.

That allows trivially testing the MobileIdentity implementation outside of an
actual SIM card environment: add a 'test' target to the Makefile and a...

fix applet-project.mk: allow multiple .java sources, separate jar target

copy applet-project.mk here, to be able to apply changes

readIMSI, writeIMSI

add Enter IMSI dialog

add hexdump()

Mobile Identity routines

return result of user interaction prompts

tweak indent in switch statement

more aggressively set private final on class vars

add showMsgAndWaitKey() to keep decoded IMSI on display

properly read IMSI as Mobile Identity (3GPP TS 24.008)

IMSIPseudo.java: fix up length somewhat

Since it is counting nibbles, we need to take the length, which is in
bytes, two times. Also increase the size of the whole string, because
there are additional numbers infront of the imsi, it seems.

There are still two numbers missing at the end, and there is a...

IMSIPseudo.java: remove unneeded return in showMsg()

IMSIPseudo.java: return if reading IMSI fails

sim-applet: flash: set --access-domain=00

Make the AC_NOT_FULFILLED error go away.

sim-applet/LICENSE: add Apache-2.0

IMSIPseudo.java: show exception error code

Current code gives E03 (AC_NOT_FULFILLED). The error codes are explained
in TS_101_476/Annex_A_HTML/sim/access/SIMViewException.html.

IMSIPseudo: implement "Show IMSI" (WIP)

This will need some adjustments before it actually works.

sim-applet/Makefile: add "delete" alias

IMSIPseudo.java: import all

It takes time to figure out where exactly a certain class/object/... is
located. Just import all of them. It does not seem to impact the size of
the applet, as there's a blog post writing about performance that does
it the same way [1]. Besides, except for the HelloSTK hello world, I've...

IMSIPseudo.java: move showMsg down

IMSIPseudo.java: display menu

Add a menu with the following actions:

IMSI Pseudonymization
1 Show LU counter
2 Show IMSI
3 Change IMSI

Selecting "Change IMSI" opens a submenu:

Change IMSI
1 Set 1 as last digit
2 Set 2 as last digit

Except for "Show LU counter", the actions are not implemented yet.

IMSIPseudo.java: rename showHello to showMsg

Add msg as parameter.

IMSIPseudo.java: rename menuItemText to title

IMSIPseudo.java: rename welcomeMsg to LUCounter

IMSIPesudo.java: simple LU counter

IMSIPseudo.java: show hello world on LU

sim-applet/README.md: describe flashing

sim-applet: add "flash" and "remove" targets

Using wrong arguments for shadysim.py (e.g. wrong --max-menu-entry-text)
results in cryptic errors, so let's version them along with the source.

IMSIPseudo.java: change menu entry title

To make this work, flash with increased --max-menu-entry-text option for
shadysim.py. I'll add a "make flash" target for convenience.

IMSIPseudo.java: convert line endings to unix

sim-applet: rename to org.osmocom.IMSIPseudo

Makefile: adjust path to sim-tools

sim-applet: start with hello-stk

Import source from here: https://git.osmocom.org/sim/hello-stk

sim-applet: create README.md stub

Prepare the directory structure.