User manual

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Sector Memory segment of the MIFARE 1K Card. Each segment consists of 4 blocks
and has individual keys and access conditions.
Security
Key
6 byte structure assigned to each sector of the card.
Transport
Key
Key as stored after delivery from the manufacturer.(for example
A0A1A2A3A4A5, B0B1B2B3B4B5 or FFFFFFFFFFFF)
Block 16 byte memory segment of the MIFARE 1K card.
Value 4 byte (unsigned long) variable stored in a special format in a block or page.
Values are 2s complement numbers that can be negative also. Values are used
for cashless payment. Values consume a complete block each using
redundancy for integrity checking.
Card ID 4 byte unique serial number. Together with manufacturer code and check byte
16 bytes. Read-only. It Is stored in block 0 (sector 0) of each tag.
Sector 0 / Block 0
Block 0 is read only.
Serial Number (4 byte) Check byte (1 byte) Manufacturer data (11 byte)
Block 3, 7, 11, 15 …
Transport keys are set on delivery:
Key A (6 byte) Access Conditions (4 bytes) Key B (6 byte)
Key A
A0 A1 A2 A3 A4 A5 (Infineon) or FF FF FF FF FF FF (new Philips cards)
Key B
B0 B1 B2 B3 B4 B5 (Infineon) or FF FF FF FF FF FF (new Philips cards)
Access Conditions
FF 07 80 xx (key A used to read or write, the key A itself is not readable; key B is data only).
Remarks
Enabled keys are always read as 00 00 00 00 00 00
Using key B as data area will cause a security gap, due to the fact that it is necessary to rewrite key A
and access conditions each write process. It is not recommended for use as data storage.
IT IS STRONGLY RECOMMENDED THAT THE KEY CODES AND THE ACCESS BITS STORED ON THE
MIFARE CARD ARE NOT CHANGED UNTIL THEIR OPERATION IS FULLY UNDERSTOOD.
Boca supported features:
• Read Serial Number.
• Read single data block - only 1 block (16 bytes) at a time. Requests for more are clipped.
• Write single data block - only 1 block (16 bytes) at a time. Remainder is padded with nulls.
• Key A value can be changed. Default value is Philips Transport Configuration.
• Blocks can't be locked due to a reader limitation at this time.