- lf t55xx brute (tries bruteforcing a range of pwds
- lf t55xx chk (uses dictionary file or RDV4 flashmem)
FIX: adjust lf sim (@marshmellow42) see 7008cf9c15
"attempt to speed up the loops waiting for carrier signal to go high or low
by only checking for a halt (button press or usbpol) every 256th loop
iteration. some users were experiencing modulating reactions to be too slow.
ADD: 'lf t55xx chk'
It uses @marshmellows42 idea behind commit (6178b085a0)
With calculating a baseline (read block0 32times and average the signal-ish) and sampling only 1024 signal data. The algo then proceeds to calc the average and keep track of the candidate which is given the most difference in signal data average value. I do some squaring and shifting for this.
The candidate is then send back to client to be tested properly with trymodulation like before.
This seems to work good on t55xx card which has a ASK configuration.
WORK-IN-PROGRESS
CHG: 'script run read_pwd_mem.lua' - script now can print those uploaded dictionary files.
How to upload
pm3 --> mem load f default_iclass_keys i
pm3 --> mem load f default_keys m
pm3 --> mem load f default_pwd t
How to validate / view
PM3 -->scr run read_pwd_mem -o 237568 -k 8
pm3 -->scr run read_pwd_mem -o 241664 -k 6
pm3 -->scr run read_pwd_mem -o 245760 -k 4
This introduces a new majoe mode, FPGA_MAJOR_MODE_OFF_LF, which should ONLY be used in sending loops for LF. Basically the PWR_LO is set HIGH in order to discharge voltage faster.
Once sending is over, the normal FPGA_MAJOR_MODE_OFF SHALL be used.
https://github.com/federicodotta/proxmark3
--adjusted to fit iceman fork and latest enhancements to LF
(untested)
FIX: some calls to deviceside demods, use 0 instead of reference.
ADD: timeout after n cycles of simulating
- `lf em4x readwordPWD` merged into `lf em4x readword` See help text
- `lf em4x writewordPWD` merged into `lf em4x writeword` See help text
- `lf em4x readword` now download the collected signal data after command.
On device side the lfops.c has gotten some love. Code cleaner, increased EM_START_GAP from 55 FC to 56 FC, because of how our microsecond(us) clock works with 21.3us increments.
TODO: `lf em4x em4x50read` needs to be factored to use @marshmellow42 's ASKdemod instead of trying to do itself.
