$ ./src/mfoc -O /dev/null
Found Mifare Classic 1k tag
ISO/IEC 14443A (106 kbps) target:
    ATQA (SENS_RES): 00  44  
* UID size: double
* bit frame anticollision supported
       UID (NFCID1): 04  1b  15  4a  0e  35  80  
      SAK (SEL_RES): 28  
* Compliant with ISO/IEC 14443-4
* Not compliant with ISO/IEC 18092
                ATS: 78  f7  b1  02  59  75  62  69  6b  65  79  4e  45  4f  72  33  
* Max Frame Size accepted by PICC: 256 bytes
* Bit Rate Capability:
  * Same bitrate in both directions mandatory
  * PICC to PCD, DS=2, bitrate 212 kbits/s supported
  * PICC to PCD, DS=4, bitrate 424 kbits/s supported
  * PICC to PCD, DS=8, bitrate 847 kbits/s supported
  * PCD to PICC, DR=2, bitrate 212 kbits/s supported
  * PCD to PICC, DR=4, bitrate 424 kbits/s supported
  * PCD to PICC, DR=8, bitrate 847 kbits/s supported
* Frame Waiting Time: 618.6 ms
* Start-up Frame Guard Time: 0.6041 ms
* Node Address not supported
* Card IDentifier supported
* Historical bytes Tk: 59  75  62  69  6b  65  79  4e  45  4f  72  33  
  * Proprietary format

Fingerprinting based on MIFARE type Identification Procedure:
Other possible matches based on ATQA & SAK values:
* Unknown card, sorry

Try to authenticate to all sectors with default keys...
Symbols: '.' no key found, '/' A key found, '\' B key found, 'x' both keys found
nfc_initiator_mifare_cmd: Success
[Key: ffffffffffff] ->