This application is designed to recover your lost keys to MIFARE Classic® Cards. If you have such a card and protected it with some key and then you forgot the key or lost it, you can try to get it back using this scanner. It's not designed for malicious purposes such as trying to hack unknown card keys.

Application consists of three sections, each providing different scan method:
- Standard section allows to scan the card using a list of predefined keys, you can add keys to this list as you see fit using menu options and also display keys
- Linear section scans the card starting with provided key and then either increases or decreases its least significant byte and then the other bytes
- Random sections is using random keys to try and find the right one, you just set the nubmer of tries, sector to find key for and then give it a spin

To use it first approach your card with the phone, when it detecs the tag select method by swiping to proper tab and start scan. That's it, pretty easy. You can look at scan results in the log window.