Mifare Classic Access Conditions Calculator



Access bits Block 0: Access condition for Application
C1 C2 C3 read write increment dec,transfr,rest
0 0 0 key A|B1 key A|B1 key A|B1 key A|B1 transport cfg.
0 1 0 key A|B1 never never never read/write block
1 0 0 key A|B1 key B1 never never read/write block
1 1 0 key A|B1 key B1 key B1 key A|B1 value block
0 0 1 key A|B1 never never key A|B1 value block
0 1 1 key B1 key B1 never never read/write block
1 0 1 key B1 never never never read/write block
1 1 1 never never never never read/write block
Access bits Block 1: Access condition for Application
C1 C2 C3 read write increment dec,transfr,rest
0 0 0 key A|B1 key A|B1 key A|B1 key A|B1 transport cfg.
0 1 0 key A|B1 never never never read/write block
1 0 0 key A|B1 key B1 never never read/write block
1 1 0 key A|B1 key B1 key B1 key A|B1 value block
0 0 1 key A|B1 never never key A|B1 value block
0 1 1 key B1 key B1 never never read/write block
1 0 1 key B1 never never never read/write block
1 1 1 never never never never read/write block
Access bits Block 2: Access condition for Application
C1 C2 C3 read write increment dec,transfr,rest
0 0 0 key A|B1 key A|B1 key A|B1 key A|B1 transport cfg.
0 1 0 key A|B1 never never never read/write block
1 0 0 key A|B1 key B1 never never read/write block
1 1 0 key A|B1 key B1 key B1 key A|B1 value block
0 0 1 key A|B1 never never key A|B1 value block
0 1 1 key B1 key B1 never never read/write block
1 0 1 key B1 never never never read/write block
1 1 1 never never never never read/write block
Access bits Trailer: Access condition for Remark
KEYA Access bits KEYB
C13 C23 C33 read write read write read write
0 0 0 never key A key A never key A key A Key B may be read[1]
0 1 0 never never key A never key A never Key B may be read[1]
1 0 0 never key B key A|B never never key B
1 1 0 never never key A|B never never never
0 0 1 never key A key A key A key A key A Key B may be read, transport cfg.[1]
0 1 1 never key B key A|B key B never key B
1 0 1 never never key A|B key B never never
1 1 1 never never key A|B never never never