simtrace

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350 discussions

possible PPS error
by Kevin Redon 09 Oct '13

09 Oct '13

Hi, I just got a SIM card which can not be detected by the phone when having simtrace in the middle. The phone is a Samsung Galaxy SIII, simtrace v1.2p, with current firmware. The SIM card works when plugged in the phone directly, and SIMtrace with this phone work with other SIM cards. This SIM cards allows high transfer rates, and the phone tries to do the PPS exchange, but somehow fails and the tells no SIM card is detected.

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iPhone Terminal Profile
by Matt S 19 Sep '13

19 Sep '13

Does anyone have a Terminal Profile handy for an iPhone 4 or 4S? I dont' have the microSIM SimTrace adapter, and the database here: https://terminal-profile.osmocom.org/ doesn't appear to have been updated in a while. Thanks!

2 1

MITM voltage fix using ATR
by Tom Schouten 10 Sep '13

10 Sep '13

Hi List, When using MITM it is possible to set the SIMtrace<->phone voltage levels using ATR, giving a clear-cut way to solve the incorrect I/O level problem: See byte TA(3) C7->C2 orig ATR from card: http://smartcard-atr.appspot.com/parse?ATR=3B9F95801FC78031E073FE2113574A33… modded to select only 3V: http://smartcard-atr.appspot.com/parse?ATR=3B9F95801FC28031E073FE2113574A33… Cheers, Tom

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INS=STATUS + car reset question
by Tom Schouten 05 Sep '13

05 Sep '13

Hi List, I'm running into the following command sequence in a Nexus One Android 2.3 phone: C-APDU:80F20001FF (STATUS) R-APDU:6C12 (Incorrect Parameter P3) After which the phone power-cycles the card. I'm wondering whether this is is desired behavior, or if it's a bug in the new MITM code. Phone seems to reset the card quite often when in USIM mode. Running the card in SIM mode, this doesn't happen. Cheers Tom

2 4

board questions regarding MitM
by Tom Schouten 28 Aug '13

28 Aug '13

Hi List, When the SIMtrace ciruit operates in MitM mode, the RST and VCC lines coming from the phone are very noisy from I/O line crosstalk in the flex cable. I see about 2V peak-to-peak on the scope! I am expecting it leads to spurious reset/poweroff detections. It might be helpful to add a filter on the AT91 side for RST and VCC. Maye an R/C filter that can be enabled by an I/O pin using 0/HI-Z switching? Another idea is to do enable the internal AT91 pin pullups. Just loading RST and VCC a bit might be enough. ( Another alternative is to filter RST and VCC measurements in software. I tried this but results are not very meaningful at this point.. ) Cheers, Tom

2 2

simtrace arduino due?
by Tom Schouten 16 Aug '13

16 Aug '13

Just an idea.. What about building a next version based on the Arduino Due? It's based on a SAM3X8E http://arduino.cc/en/Main/arduinoBoardDue

2 1

SIMtrace MITM/emulator
by Tom Schouten 16 Aug '13

16 Aug '13

Hi List, What is the current status of the MITM support? Anyone working on it behind the scenes? Also, I'd like to gauge how much work would be necessary to implement an emulator mode, with emulator running on PC. I.e. SIMtrace used to doe ATR handshake and then hand over all APDU to host PC over USB. Cheers Tom

5 26

MITM
by Tom Schouten 09 Aug '13

09 Aug '13

Hi List, Here are some bare-minimum code contributions for iso7816-3 slave side protocol. https://github.com/zwizwa/at91work/tree/apdu_phone git@github.com:zwizwa/at91work.git branch apdu_phone Relevant files are in: iso7816-slave-cdc-project/ src/ I spent a bit more time on this than expected on low-level platform stuff, leaving me with no time to smooth the rough edges at the PC interface side. It's a start, though. Features: - non-blocking iso7816-3 state machine for slave-side protocol (reusable in COS?) - low-level AT91 USART is abstracted as iso7816_port.h - line-oriented ASCII HEX protocol over CDC USB serial, easy to use in (python) scripts - transport is separate from state machine, easy to replace with other discussed mechanisms - works for me on Nexus One and BLU SAMBA JR plus Non-features: - hardcoded ATR - hardcoded power cycle skipping to select correct operating voltage - not using SIMtrace SIM slot (see mim.py for using a PC card reader to complete MITM) - did not test with DFU but should work (I used Atmel SAM-ICE) - standalone firmware, not integrated with CCID / sniffer - git history is messy. i'd just flatten it for further work

2 6

SIMtrace phone-side VCC
by Tom Schouten 30 Jul '13

30 Jul '13

Hi folks, Seems not all phones use 3V signaling if the PHONE-side VCC pin is tied to 3V. This one insists on 1.8V : BLU SAMBA JR PLUS Is this trick of tying VCC to 3V standard behavior? For future version of the board, it might be interesting to tie the VCC pin to an ADC input, to detect different voltage levels so the firmware can wait until phone decides to use 3V. Cheers Tom

3 4

ask about design sim card reader
by anak galer 25 Jul '13

25 Jul '13

hello , anyone have schematic design sim reader PC/SC , yesterday i'm make some reader but not support with PC/SC apps in here (http://git.osmocom.org/osmo-sim-auth | A smart card reader compatible with pcsc-lite) i think my card support with phoenix reader? and anyone can explain the differences between the PC / SC with phoenix sim reader or etc Regards

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