mfc-spec.txt

# Copyright (c) 2011 Anders Sundman <anders@4zm.org>
#
# This file is part of rkfterm.
#
# rkfterm is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# rkfterm is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with rkfterm.  If not, see <http://www.gnu.org/licenses/>.


# About the specification language:
#
# The primitive types in the specification language are Byte and Bit
# and arrays of such. All other types need to be defined.
#
# Every specification must include the root type '.'


# The root type is specified by its type name '.'
. {
  Sector0      sector_0    # The types usesed here are defined below
  Sector1k[15] sectors_1k
  Sector4k[12] sectors_4k
}

# The type Sector_0 represents the first sector.
Sector0 {
  { # This is an anonymous inner type. The type doesn't have a name.
    Byte[4] uid         # Unique ID
    Byte    cd          # Check Byte; uid bytes xor:ed with cb should be 0
    Bit[4]  -           # Not used. Use '-' as a name in theese cases
    Bit[4]  sak
    Byte[2] atqa
    Byte[8] manufacturer_data
  }             block_0
  Block[2]      blocks
  SectorTrailer trailer
}

Sector1k {
  Block[3]      blocks
  SectorTrailer trailer
}

Sector4k {
  Block[15]     blocks
  SectorTrailer trailer
}

Block {
  Byte[16] data
}

SectorTrailer {
  Byte[6] key_a
  ACL     acl
	Byte[1] -       # Undefined
  Byte[6] key_b
}

# See p.12 of Mifare MF1 IC S50 Functional Specification, rev. 4.0
# _b suffixed bits are inverted versions of non suffixed counterparts
ACL {
  Bit c2x3_b # bit 7
  Bit c2x2_b
  Bit c2x1_b
  Bit c2x0_b # bit 4
  Bit c1x3_b # bit 3
  Bit c1x2_b
  Bit c1x1_b
  Bit c1x0_b # bit 0

  Bit c1x3   # bit 7
  Bit c1x2
  Bit c1x1
  Bit c1x0   # bit 4
  Bit c3x3_b # bit 3
  Bit c3x2_b
  Bit c3x1_b
  Bit c3x0_b # bit 0

  Bit c3x3   # bit 7
  Bit c3x2
  Bit c3x1
  Bit c3x0   # bit 4
  Bit c2x3   # bit 3
  Bit c2x2
  Bit c2x1
  Bit c2x0   # bit 0
}