$ ./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] ->