RFID reader: FM175XX
Tag type: Mifare Classic 1k
Data is singed with one of 10 RSA keys, so no way to forge/modify data. Reading other tags (Bambu Lab or NTAG based) is possible only with firmware modification.
KDF implementation: https://github.com/RfidResearchGroup/proxmark3/blob/b380132cbbd8bea259e57a8a4bb6f376c69e14c5/common/generator.c#L580-L602
Simple data parser located in file parser.py, it doesn't have RSA verification (useful for third party apps)