I figured it was a waste not to use the 1kb of storage in sector 1 on the xSIID so I wrote a python script to use it for simple aes-256 encrypted password storage with the
The input file is in csv format but the output when the implant is read is json.
Sector 0 is untouched so it’s still possible to read/write NDEF records normally as well as store/read the encrypted data on sector 1. If anyone wants it let me know and I’ll put the code on github or something
The hf_i2c_plus_2k_utils script is now merged into the proxmark3 iceman fork. So you can just git pull there’s no need to copy the file to ~/.proxmark3 anymore.