pwpiwi [Tue, 23 Dec 2014 10:11:52 +0000 (11:11 +0100)]
bugfixes in iso14443a.c and hf 14a reader
- introduced with the big frame and parity support (commit 6a1f2d82): tag responses with len%8 == 0 were dropped - thanks iceman for testing and finding
- after unsuccessful hf 14a reader the field stayed on. Thanks to iceman for proposing the fix.
pwpiwi [Wed, 17 Dec 2014 16:38:13 +0000 (17:38 +0100)]
unify/refactor hw tune and data tune
- unified hw tune and Enio's great data tune
- don't use BigBuf (and hardcoded Offset)
- removed special handling of CMD_MEASURED_ANTENNA_TUNING
in UsbCommandReceived()
pwpiwi [Tue, 16 Dec 2014 06:41:07 +0000 (07:41 +0100)]
bugfixes iso14443a (hf 14a commands)
- buffers were too small to handle 256 byte frames
- parity bits were only handled for up to 32 byte frames
- trace format was inefficient
- removed parity calculation from decoders in iclass.c (parity not used on air anyway)
hf mf dump error handling, revive hf mf chk d option, provide known keys dictionary file
- hf mf dump: abort on unrecoverable errors. Don't create file dumpdata.bin in this case.
- hf mf chk: re-enabled and fixed option d (dump keys to dumpkeys.bin).
if there are unknown keys, write 0xffffffffffff instead to the file.
- provide a default key dictionary file for hf mf chk (default_keys.dic). Contents taken from
mf_default_keys.lua
fix/add support for 4K (and other non 1K) card sizes in hf mf commands
- hf mf rdsc (fix): didn't account for 16 block sectors, allowed max sector 63 instead of 39
- hf mf ecfill (add): added (optional) card size parameter and support for non 1K cards
- hf mf dump (add): added (optional) card size parameter and support for non 1K cards
- hf mf dump (fix): Access Condition 011 not handled correctly (tried to access with key A)
- hf mf restore (add): added (optional) card size parameter and support for non 1K cards
- hf mf nested (fix): didn't account for 16 block sectors, allowed max sector 63 instead of 39
- hf mf nested (fix): always dumped 16 keys to dumpkeys.bin instead of correct number
- hf mf chk (fix): always dumped 16 keys to dumpkeys.bin instead of correct number
- hf mf eget (fix): displayed three instead of one block
- hf mf eload (add): load 4K .eml files (but accepts 1K .eml files for backwards compatibility)
- hf mf esave (add): always save the whole emulator memory (4K) instead of 1K only
- hf mf ecfill (add): added (optional) card size parameter and support for non 1K cards
bugfixes hf mf sim
- output of debug messages caused communication failures due to timing issues.
hf mf dbg 4 now required to see these debug messages.
- changed help text for hf mf dbg
- fixed minor bugs in help texts for hf mf sim and hf mf ecset
- display "key A" or "key B" instead of "key=0" or "key=1 in hf mf sim
minor bugfixes to hf mf sniff and hf 14a snoop
- tracing was not always enabled when starting hf mf sniff or hf 14a snoop
- ATQA was displayed in wrong byte order in hf mf sniff
- 4 Byte UIDs were displayed as 7 Byte UIDs (padded with 0x000000) in hf mf sniff
- same for logfile names.
- assignment (=) had been used instead of == in comparisons (shouldn't have been relevant though)
minor bugfix and enhancement to hf 14a reader
- "SAK incorrectly claims ... " message was displayed incorrectly
- now decodes FSCI, SFGI, FWI and displays FSC, SFGT, FWT resp.
pwpiwi [Mon, 30 Jun 2014 06:21:50 +0000 (08:21 +0200)]
hf 14a reader enhancement
In order to be able to distinguish between Mifare Classic and Mifare Plus
in Security Level 1 (SL1, Mifare Classic Compatibility Mode), hf 14a reader
now always tries RATS - even if SAK claims not to support ISO14443-4.
iZsh [Sat, 21 Jun 2014 22:26:38 +0000 (00:26 +0200)]
New LF edge detection algorithm + lowpass filter
This is a new LF edge detection algorithm for the FPGA.
- It uses a low-pass IIR filter to clean the signal
(see https://fail0verflow.com/blog/2014/proxmark3-fpga-iir-filter.html)
- The algorithm is able to detect consecutive peaks in the same
direction
- It uses an envelope follower to dynamically adjust the peak thresholds
- The main threshold used in the envelope follower can be set from the ARM side
fpga/lf_edge_detect.v,
fpga/lp20khz_1MSa_iir_filter.v,
fpga/min_max_tracker.v: New file.
armsrc/apps.h (FPGA_CMD_SET_USER_BYTE1,
FPGA_CMD_SET_EDGE_DETECT_THRESHOLD): New FPGA command.
fpga/fpga_lf.v: Modify accordingly/Add a 8bit user register.
fpga/fpga_lf.bit: Update accordingly.
fpga/tests: New directory for testbenches
fpga/tests/Makefile: New file. It compiles the testbenches
and runs all the tests by default (comparing with the golden output)
fpga/tests/tb_lp20khz_1MSa_iir_filter.v,
fpga/tests/tb_min_max_tracker.v,
fpga/tests/tb_lf_edge_detect.v: New testbenches
fpga/tests/plot_edgedetect.py: New script to plot the results from
the edge detection tests.
fpga/tests/tb_data: New directory for data and golden outputs
Implemented client side changes for iclass hack, attempted to fix issues with trace. The trace functionality from iso14443 has been rewritten, unfortunately iclass used that also, which made iclass 'list' stop functioning, both for simulation and snooping
Refactoring low frequency operations, now 'lf hid fskdemod' is more stable. Also did changes to handling ioprox tags, this is yet untested, so until it's been tested it should be kept off 'stable' branch
projects / proxmark3-svn / log