4.4 KiB
BIG CHANGES COMING TO THIS SOON! Updated info as the below is no longer (entirely) true.
Some files that are fun to use. Starting to get a better idea on the structure (Flipper format) of NFC files and payloads.
Example using the RickRoll.nfc file. Leave the data in pages 1 through 6 alone (though not always true, but it is for YouTube links.)
Page 7: 79 6F 75 74
Page 8: 75 2E 62 65
Page 9: 2F 64 51 77
Page 10: 34 77 39 57
Page 11: 67 58 63 51
This is simply the YouTube "share" link encoded into HEX and split into 4 byte chunks. See for yourself...
HEX from above: 79 6F 75 74 75 2E 62 65 2F 64 51 77 34 77 39 57 67 58 63 51
Converted: youtu.be/dQw4w9WgXcQ
The last byte in page 6 (0x04) defines what type of encoding (data sheet and URI identifier codes). To convert your link to HEX, use anything such as an online tool. Read up on generic cloner passwords as they may exist and may be needed to access information.
One limitation is the URL will be truncated if it goes beyond page 11! If your URL is less than exact, pad it with 00, making sure page 12 stays as "FE 00 00 00". Note that TinyURL links appear to fit well and conversion/use is free. If your link doesn't launch automatically when scanned, try using a different URI identifier.
Acknowledgements: RogueMaster | cyanic | Null Silvry | Equip | DDVL (for discussions, testing, and any files.)
Flipper Zero can read the following: T5777 Card Freq 125K | 125 kHz RFID MiFare Classic Card | NFC MiFare Classic Clear Tag | NFC HID Card Freq 125KHZ | 125 kHz RFID FourPoints.Com Card NFC | NFC Mifare Ultral/NTAG Gen1A 1k S50 HF RFID Card | NFC UID Freq 13.56MHZ Card | NFC Hotel KeyCards | NFC ValuProx 125kHz ISO | 125 kHz RFID
NTAG Differences | NTAG Datasheet | ASCII to HEX | HEX to Decimal (Other converters at both links.)
Value Protocol (SOURCE)
------ ----------
0x00 No prepending is done ... the entire URI is contained in the URI Field
0x01 http://www.
0x02 https://www.
0x03 http://
0x04 https://
0x05 tel:
0x06 mailto:
0x07 ftp://anonymous:anonymous@
0x08 ftp://ftp.
0x09 ftps://
0x0A sftp://
0x0B smb://
0x0C nfs://
0x0D ftp://
0x0E dav://
0x0F news:
0x10 telnet://
0x11 imap:
0x12 rtsp://
0x13 urn:
0x14 pop:
0x15 sip:
0x16 sips:
0x17 tftp:
0x18 btspp://
0x19 btl2cap://
0x1A btgoep://
0x1B tcpobex://
0x1C irdaobex://
0x1D file://
0x1E urn:epc:id:
0x1F urn:epc:tag:
0x20 urn:epc:pat:
0x21 urn:epc:raw:
0x22 urn:epc:
0x23 urn:nfc: