- 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
the idea is to have a statistically solid conclusion if tag does or does not have the NACK bug.
-in short, ref https://github.com/iceman1001/proxmark3/issues/141
NACK bug; when a tag responds with a NACK to a 8 byte nonce exchange during authentication when the bytes are wrong but the parity bits are correct.
This is a strong oracle which is used in the darkside attack.
fix: 'hf mf hardnested' test cases doesn't need to verify key.
add: 'hf mf ' - collect nonces from classic tag.
chg: switch_off on armside, a more unified way, so we don't forget to turn of the antenna ...
chg: renamed 'hf iclass snoop' into 'hf iclass sniff' in an attempt to make all sniff/snoop commands only SNIFF
chg: 'standalone' -> starting the work of moving all standalone mods into a plugin kind of style, in its own folder.
