proxmark3/tools/hitag2crack/crack5
..
.gitignore
ht2crack5.c
Makefile
README.md

ht2crack5

Build

make clean
make

Run

You'll need just two nR aR pairs. These are the encrypted nonces and challenge response values. They should be in hex.

./ht2crack5 <UID> <nR1> <aR1> <nR2> <aR2>

UID is the UID of the tag that you used to gather the nR aR values.