FreeCalypso > hg > fc-sim-sniff

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README: project rename
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 21 Sep 2023 07:01:49 +0000
parents 510bef2b2000
children
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49:7e87b03dd57d 50:f8c27c2bde0e
1 Welcome to FreeCalypso SIMtrace3 1 Welcome to FreeCalypso SIMsniff
2 ================================ 2 ===============================
3 3
4 FC SIMtrace3 (aka SIMtrace-ice) is an alternative implementation of Osmocom 4 FreeCalypso SIMsniff is an alternative project to Osmocom SIMtrace, created in
5 SIMtrace principal idea, using an iCE40 FPGA instead of AT91SAMx MCU as the ISO 5 response to technical limitations of the latter. Both tools seek to solve the
6 7816-3 sniffing receiver. Aside from this change from an MCU to an FPGA and 6 same problem (trace or sniff all communication between a phone, modem or other
7 thus from firmware to gateware, the other principal difference is that SIMtrace3 7 interface device and a SIM card) and use some passive hardware components in
8 is electrically clean and proper: 8 common (the FPC adapter cable that goes into the phone's SIM socket), but use
9 different active components: Osmocom SIMtrace uses an AT91SAMx MCU as the ISO
10 7816-3 sniffing receiver, whereas FC SIMsniff uses a voltage translating buffer
11 followed by an iCE40 FPGA instead.
12
13 The principal practical difference between the two tools is that FC SIMsniff is
14 electrically clean and proper:
9 15
10 * The sniffing apparatus makes a strictly Hi-Z connection to the SIM bus being 16 * The sniffing apparatus makes a strictly Hi-Z connection to the SIM bus being
11 sniffed; 17 sniffed;
12 18
13 * The SIM bus itself is solidly connected from the phone's SIM socket to the 19 * The SIM bus itself is solidly connected from the phone's SIM socket to the
15 artifacts; 21 artifacts;
16 22
17 * The sniffing apparatus supports all 3 voltage classes that can be put out by 23 * The sniffing apparatus supports all 3 voltage classes that can be put out by
18 the ME or other interface device: 1.8V, 3V and 5V are all good. 24 the ME or other interface device: 1.8V, 3V and 5V are all good.
19 25
20 The hardware setup of SIMtrace3 consists of: 26 The hardware setup of FC SIMsniff consists of:
21 27
22 * The same SIMtrace FPC cables (going from a SIM socket to the 6-pin FPC 28 * The same SIMtrace FPC cables (going from a SIM socket to the 6-pin FPC
23 connector) that were originally developed for SIMtrace1/2 and are sold by 29 connector) that were originally developed for SIMtrace1/2 and are sold by
24 Sysmocom; 30 Sysmocom;
25 31