git.zerfleddert.de Git - proxmark3-svn/blob - client/scripts/didump.lua

   1 local cmds = require('commands')
   2 local getopt = require('getopt')
   3 local utils = require('utils')
   4 local lib14a = require('read14a')
   5
   6 example =[[
   7         script run didump
   8         script run didump -k aabbccddeeff
   9 ]]
  10 author = "Iceman"
  11 usage = "script run didump -k <key> "
  12 desc = [[
  13 This is a script to dump and decrypt the data of a specific type of Mifare Mini token.
  14
  15 Arguments:
  16         -h             : this help
  17         -t                         : selftest
  18         -k <key>       : Mifare Key A.
  19 ]]
  20
  21 local band=bit32.band
  22 local bor=bit32.bor
  23 local bnot=bit32.bnot
  24 local bxor=bit32.bxor
  25 local lshift=bit32.lshift
  26 local rshift=bit32.rshift
  27
  28 local FOO = 'AF62D2EC0491968CC52A1A7165F865FE'
  29 local BAR = '286329204469736E65792032303133'
  30 local RANDOM = FOO..BAR
  31 local outputTemplate = os.date("toydump_%Y-%m-%d_%H%M%S");
  32 local TIMEOUT = 2000
  33 local DEBUG = false
  34 local numBlocks = 20
  35 local numSectors = 5
  36 local CHECKSUM_OFFSET = 12; -- +1???
  37 ---
  38 -- A debug printout-function
  39 function dbg(args)
  40         if DEBUG then
  41                 print("###", args)
  42         end
  43 end
  44 ---
  45 -- This is only meant to be used when errors occur
  46 function oops(err)
  47         print("ERROR: ",err)
  48         core.clearCommandBuffer()
  49 end
  50 ---
  51 -- Usage help
  52 function help()
  53         print(desc)
  54         print("Example usage")
  55         print(example)
  56 end
  57 ---
  58 -- Get checksum,
  59 -- called: data is string (32 hex digits)
  60 -- returns: number
  61 local function getChecksum(data)
  62         local chksum = data:sub(25,32)
  63         return tonumber(chksum,16)
  64 end
  65 ---
  66 -- calculate checksum
  67 -- called: data is bytes  (24 hex digits)
  68 -- returns: number
  69 local function calculateChecksum(data)
  70
  71         -- Generate table
  72         local _tbl = {}
  73 _tbl[0] = { 0x0 }
  74 _tbl[1] = { 0x77073096 }
  75 _tbl[2] = { 0xEE0E612C }
  76 _tbl[3] = { 0x990951BA }
  77 _tbl[4] = { 0x76DC419 }
  78 _tbl[5] = { 0x706AF48F }
  79 _tbl[6] = { 0xE963A535 }
  80 _tbl[7] = { 0x9E6495A3 }
  81 _tbl[8] = { 0xEDB8832 }
  82 _tbl[9] = { 0x79DCB8A4 }
  83 _tbl[10] = { 0xE0D5E91E }
  84 _tbl[11] = { 0x97D2D988 }
  85 _tbl[12] = { 0x9B64C2B }
  86 _tbl[13] = { 0x7EB17CBD }
  87 _tbl[14] = { 0xE7B82D07 }
  88 _tbl[15] = { 0x90BF1D91 }
  89 _tbl[16] = { 0x1DB71064 }
  90 _tbl[17] = { 0x6AB020F2 }
  91 _tbl[18] = { 0xF3B97148 }
  92 _tbl[19] = { 0x84BE41DE }
  93 _tbl[20] = { 0x1ADAD47D }
  94 _tbl[21] = { 0x6DDDE4EB }
  95 _tbl[22] = { 0xF4D4B551 }
  96 _tbl[23] = { 0x83D385C7 }
  97 _tbl[24] = { 0x136C9856 }
  98 _tbl[25] = { 0x646BA8C0 }
  99 _tbl[26] = { 0xFD62F97A }
 100 _tbl[27] = { 0x8A65C9EC }
 101 _tbl[28] = { 0x14015C4F }
 102 _tbl[29] = { 0x63066CD9 }
 103 _tbl[30] = { 0xFA0F3D63 }
 104 _tbl[31] = { 0x8D080DF5 }
 105 _tbl[32] = { 0x3B6E20C8 }
 106 _tbl[33] = { 0x4C69105E }
 107 _tbl[34] = { 0xD56041E4 }
 108 _tbl[35] = { 0xA2677172 }
 109 _tbl[36] = { 0x3C03E4D1 }
 110 _tbl[37] = { 0x4B04D447 }
 111 _tbl[38] = { 0xD20D85FD }
 112 _tbl[39] = { 0xA50AB56B }
 113 _tbl[40] = { 0x35B5A8FA }
 114 _tbl[41] = { 0x42B2986C }
 115 _tbl[42] = { 0xDBBBC9D6 }
 116 _tbl[43] = { 0xACBCF940 }
 117 _tbl[44] = { 0x32D86CE3 }
 118 _tbl[45] = { 0x45DF5C75 }
 119 _tbl[46] = { 0xDCD60DCF }
 120 _tbl[47] = { 0xABD13D59 }
 121 _tbl[48] = { 0x26D930AC }
 122 _tbl[49] = { 0x51DE003A }
 123 _tbl[50] = { 0xC8D75180 }
 124 _tbl[51] = { 0xBFD06116 }
 125 _tbl[52] = { 0x21B4F4B5 }
 126 _tbl[53] = { 0x56B3C423 }
 127 _tbl[54] = { 0xCFBA9599 }
 128 _tbl[55] = { 0xB8BDA50F }
 129 _tbl[56] = { 0x2802B89E }
 130 _tbl[57] = { 0x5F058808 }
 131 _tbl[58] = { 0xC60CD9B2 }
 132 _tbl[59] = { 0xB10BE924 }
 133 _tbl[60] = { 0x2F6F7C87 }
 134 _tbl[61] = { 0x58684C11 }
 135 _tbl[62] = { 0xC1611DAB }
 136 _tbl[63] = { 0xB6662D3D }
 137 _tbl[64] = { 0x76DC4190 }
 138 _tbl[65] = { 0x1DB7106 }
 139 _tbl[66] = { 0x98D220BC }
 140 _tbl[67] = { 0xEFD5102A }
 141 _tbl[68] = { 0x71B18589 }
 142 _tbl[69] = { 0x6B6B51F }
 143 _tbl[70] = { 0x9FBFE4A5 }
 144 _tbl[71] = { 0xE8B8D433 }
 145 _tbl[72] = { 0x7807C9A2 }
 146 _tbl[73] = { 0xF00F934 }
 147 _tbl[74] = { 0x9609A88E }
 148 _tbl[75] = { 0xE10E9818 }
 149 _tbl[76] = { 0x7F6A0DBB }
 150 _tbl[77] = { 0x86D3D2D }
 151 _tbl[78] = { 0x91646C97 }
 152 _tbl[79] = { 0xE6635C01 }
 153 _tbl[80] = { 0x6B6B51F4 }
 154 _tbl[81] = { 0x1C6C6162 }
 155 _tbl[82] = { 0x856530D8 }
 156 _tbl[83] = { 0xF262004E }
 157 _tbl[84] = { 0x6C0695ED }
 158 _tbl[85] = { 0x1B01A57B }
 159 _tbl[86] = { 0x8208F4C1 }
 160 _tbl[87] = { 0xF50FC457 }
 161 _tbl[88] = { 0x65B0D9C6 }
 162 _tbl[89] = { 0x12B7E950 }
 163 _tbl[90] = { 0x8BBEB8EA }
 164 _tbl[91] = { 0xFCB9887C }
 165 _tbl[92] = { 0x62DD1DDF }
 166 _tbl[93] = { 0x15DA2D49 }
 167 _tbl[94] = { 0x8CD37CF3 }
 168 _tbl[95] = { 0xFBD44C65 }
 169 _tbl[96] = { 0x4DB26158 }
 170 _tbl[97] = { 0x3AB551CE }
 171 _tbl[98] = { 0xA3BC0074 }
 172 _tbl[99] = { 0xD4BB30E2 }
 173 _tbl[100] = { 0x4ADFA541 }
 174 _tbl[101] = { 0x3DD895D7 }
 175 _tbl[102] = { 0xA4D1C46D }
 176 _tbl[103] = { 0xD3D6F4FB }
 177 _tbl[104] = { 0x4369E96A }
 178 _tbl[105] = { 0x346ED9FC }
 179 _tbl[106] = { 0xAD678846 }
 180 _tbl[107] = { 0xDA60B8D0 }
 181 _tbl[108] = { 0x44042D73 }
 182 _tbl[109] = { 0x33031DE5 }
 183 _tbl[110] = { 0xAA0A4C5F }
 184 _tbl[111] = { 0xDD0D7CC9 }
 185 _tbl[112] = { 0x5005713C }
 186 _tbl[113] = { 0x270241AA }
 187 _tbl[114] = { 0xBE0B1010 }
 188 _tbl[115] = { 0xC90C2086 }
 189 _tbl[116] = { 0x5768B525 }
 190 _tbl[117] = { 0x206F85B3 }
 191 _tbl[118] = { 0xB966D409 }
 192 _tbl[119] = { 0xCE61E49F }
 193 _tbl[120] = { 0x5EDEF90E }
 194 _tbl[121] = { 0x29D9C998 }
 195 _tbl[122] = { 0xB0D09822 }
 196 _tbl[123] = { 0xC7D7A8B4 }
 197 _tbl[124] = { 0x59B33D17 }
 198 _tbl[125] = { 0x2EB40D81 }
 199 _tbl[126] = { 0xB7BD5C3B }
 200 _tbl[127] = { 0xC0BA6CAD }
 201 _tbl[128] = { 0xEDB88320 }
 202 _tbl[129] = { 0x9ABFB3B6 }
 203 _tbl[130] = { 0x3B6E20C }
 204 _tbl[131] = { 0x74B1D29A }
 205 _tbl[132] = { 0xEAD54739 }
 206 _tbl[133] = { 0x9DD277AF }
 207 _tbl[134] = { 0x4DB2615 }
 208 _tbl[135] = { 0x73DC1683 }
 209 _tbl[136] = { 0xE3630B12 }
 210 _tbl[137] = { 0x94643B84 }
 211 _tbl[138] = { 0xD6D6A3E }
 212 _tbl[139] = { 0x7A6A5AA8 }
 213 _tbl[140] = { 0xE40ECF0B }
 214 _tbl[141] = { 0x9309FF9D }
 215 _tbl[142] = { 0xA00AE27 }
 216 _tbl[143] = { 0x7D079EB1 }
 217 _tbl[144] = { 0xF00F9344 }
 218 _tbl[145] = { 0x8708A3D2 }
 219 _tbl[146] = { 0x1E01F268 }
 220 _tbl[147] = { 0x6906C2FE }
 221 _tbl[148] = { 0xF762575D }
 222 _tbl[149] = { 0x806567CB }
 223 _tbl[150] = { 0x196C3671 }
 224 _tbl[151] = { 0x6E6B06E7 }
 225 _tbl[152] = { 0xFED41B76 }
 226 _tbl[153] = { 0x89D32BE0 }
 227 _tbl[154] = { 0x10DA7A5A }
 228 _tbl[155] = { 0x67DD4ACC }
 229 _tbl[156] = { 0xF9B9DF6F }
 230 _tbl[157] = { 0x8EBEEFF9 }
 231 _tbl[158] = { 0x17B7BE43 }
 232 _tbl[159] = { 0x60B08ED5 }
 233 _tbl[160] = { 0xD6D6A3E8 }
 234 _tbl[161] = { 0xA1D1937E }
 235 _tbl[162] = { 0x38D8C2C4 }
 236 _tbl[163] = { 0x4FDFF252 }
 237 _tbl[164] = { 0xD1BB67F1 }
 238 _tbl[165] = { 0xA6BC5767 }
 239 _tbl[166] = { 0x3FB506DD }
 240 _tbl[167] = { 0x48B2364B }
 241 _tbl[168] = { 0xD80D2BDA }
 242 _tbl[169] = { 0xAF0A1B4C }
 243 _tbl[170] = { 0x36034AF6 }
 244 _tbl[171] = { 0x41047A60 }
 245 _tbl[172] = { 0xDF60EFC3 }
 246 _tbl[173] = { 0xA867DF55 }
 247 _tbl[174] = { 0x316E8EEF }
 248 _tbl[175] = { 0x4669BE79 }
 249 _tbl[176] = { 0xCB61B38C }
 250 _tbl[177] = { 0xBC66831A }
 251 _tbl[178] = { 0x256FD2A0 }
 252 _tbl[179] = { 0x5268E236 }
 253 _tbl[180] = { 0xCC0C7795 }
 254 _tbl[181] = { 0xBB0B4703 }
 255 _tbl[182] = { 0x220216B9 }
 256 _tbl[183] = { 0x5505262F }
 257 _tbl[184] = { 0xC5BA3BBE }
 258 _tbl[185] = { 0xB2BD0B28 }
 259 _tbl[186] = { 0x2BB45A92 }
 260 _tbl[187] = { 0x5CB36A04 }
 261 _tbl[188] = { 0xC2D7FFA7 }
 262 _tbl[189] = { 0xB5D0CF31 }
 263 _tbl[190] = { 0x2CD99E8B }
 264 _tbl[191] = { 0x5BDEAE1D }
 265 _tbl[192] = { 0x9B64C2B0 }
 266 _tbl[193] = { 0xEC63F226 }
 267 _tbl[194] = { 0x756AA39C }
 268 _tbl[195] = { 0x26D930A }
 269 _tbl[196] = { 0x9C0906A9 }
 270 _tbl[197] = { 0xEB0E363F }
 271 _tbl[198] = { 0x72076785 }
 272 _tbl[199] = { 0x5005713 }
 273 _tbl[200] = { 0x95BF4A82 }
 274 _tbl[201] = { 0xE2B87A14 }
 275 _tbl[202] = { 0x7BB12BAE }
 276 _tbl[203] = { 0xCB61B38 }
 277 _tbl[204] = { 0x92D28E9B }
 278 _tbl[205] = { 0xE5D5BE0D }
 279 _tbl[206] = { 0x7CDCEFB7 }
 280 _tbl[207] = { 0xBDBDF21 }
 281 _tbl[208] = { 0x86D3D2D4 }
 282 _tbl[209] = { 0xF1D4E242 }
 283 _tbl[210] = { 0x68DDB3F8 }
 284 _tbl[211] = { 0x1FDA836E }
 285 _tbl[212] = { 0x81BE16CD }
 286 _tbl[213] = { 0xF6B9265B }
 287 _tbl[214] = { 0x6FB077E1 }
 288 _tbl[215] = { 0x18B74777 }
 289 _tbl[216] = { 0x88085AE6 }
 290 _tbl[217] = { 0xFF0F6A70 }
 291 _tbl[218] = { 0x66063BCA }
 292 _tbl[219] = { 0x11010B5C }
 293 _tbl[220] = { 0x8F659EFF }
 294 _tbl[221] = { 0xF862AE69 }
 295 _tbl[222] = { 0x616BFFD3 }
 296 _tbl[223] = { 0x166CCF45 }
 297 _tbl[224] = { 0xA00AE278 }
 298 _tbl[225] = { 0xD70DD2EE }
 299 _tbl[226] = { 0x4E048354 }
 300 _tbl[227] = { 0x3903B3C2 }
 301 _tbl[228] = { 0xA7672661 }
 302 _tbl[229] = { 0xD06016F7 }
 303 _tbl[230] = { 0x4969474D }
 304 _tbl[231] = { 0x3E6E77DB }
 305 _tbl[232] = { 0xAED16A4A }
 306 _tbl[233] = { 0xD9D65ADC }
 307 _tbl[234] = { 0x40DF0B66 }
 308 _tbl[235] = { 0x37D83BF0 }
 309 _tbl[236] = { 0xA9BCAE53 }
 310 _tbl[237] = { 0xDEBB9EC5 }
 311 _tbl[238] = { 0x47B2CF7F }
 312 _tbl[239] = { 0x30B5FFE9 }
 313 _tbl[240] = { 0xBDBDF21C }
 314 _tbl[241] = { 0xCABAC28A }
 315 _tbl[242] = { 0x53B39330 }
 316 _tbl[243] = { 0x24B4A3A6 }
 317 _tbl[244] = { 0xBAD03605 }
 318 _tbl[245] = { 0xCDD70693 }
 319 _tbl[246] = { 0x54DE5729 }
 320 _tbl[247] = { 0x23D967BF }
 321 _tbl[248] = { 0xB3667A2E }
 322 _tbl[249] = { 0xC4614AB8 }
 323 _tbl[250] = { 0x5D681B02 }
 324 _tbl[251] = { 0x2A6F2B94 }
 325 _tbl[252] = { 0xB40BBE37 }
 326 _tbl[253] = { 0xC30C8EA1 }
 327 _tbl[254] = { 0x5A05DF1B }
 328 _tbl[255] = { 0x2D02EF8D }
 329
 330
 331         -- Calculate it
 332         local ret = 0
 333         for i,item in pairs(data) do
 334                 local tmp =  band(ret, 0xFF)
 335                 local index = band( bxor(tmp, item), 0xFF)
 336                 ret = bxor(rshift(ret,8), _tbl[index][1])
 337         end
 338         return ret
 339 end
 340 ---
 341 -- update checksum
 342 -- called: data is string, ( >= 24 hex digits )
 343 -- returns: string, (data concat new checksum)
 344 local function updateChecksum(data)
 345         local part = data:sub(1,24)
 346         local chksum = calculateChecksum( utils.ConvertHexToBytes(part))
 347         return string.format("%s%X", part, chksum)
 348 end
 349 ---
 350 -- receives the answer from deviceside, used with a readblock command
 351 local function waitCmd()
 352         local response = core.WaitForResponseTimeout(cmds.CMD_ACK,TIMEOUT)
 353         if response then
 354                 local count,cmd,arg0 = bin.unpack('LL',response)
 355                 if(arg0==1) then
 356                         local count,arg1,arg2,data = bin.unpack('LLH511',response,count)
 357                         return data:sub(1,32)
 358                 else
 359                         return nil, "Couldn't read block.."
 360                 end
 361         end
 362         return nil, "No response from device"
 363 end
 364
 365 local function selftest()
 366         local testdata = '000F42430D0A14000001D11F'..'5D738517'
 367         local chksum = getChecksum(testdata)
 368         local calc = calculateChecksum( utils.ConvertHexToBytes(testdata:sub(1,24)))
 369         local isValid = false
 370         local validStr = "FAIL"
 371         if calc == chksum then
 372                 isValid = true
 373                 validStr = "OK"
 374         end
 375         local newtestdata = updateChecksum(testdata)
 376         local revalidated = "FAIL"
 377         if newtestdata == testdata then
 378                 revalidated = "OK"
 379         end
 380         print  ('TESTDATA      :: '..testdata)
 381         print  ('DATA          :: '..testdata:sub(1,24))
 382         print (('VALID CHKSUM  :: %s'):format(validStr ))
 383         print (('UPDATE CHKSUM :: %s'):format(revalidated))
 384 end
 385 ---
 386 -- The main entry point
 387 -- -d decrypt
 388 -- -e encrypt
 389 -- -v validate
 390 function main(args)
 391
 392         local cmd, result, err, blockNo, keyA
 393         local blocks = {}
 394         local magic = ''
 395
 396         -- Read the parameters
 397         for o, a in getopt.getopt(args, 'hk:t') do
 398                 if o == "h" then help() return end
 399                 if o == "k" then keyA = a end
 400                 if o == "t" then return selftest() end
 401         end
 402
 403         -- validate input args.
 404         keyA =  keyA or '6dd747e86975'
 405         if #(keyA) ~= 12 then
 406                 return oops( string.format('Wrong length of write key (was %d) expected 12', #keyA))
 407         end
 408
 409         -- Turn off Debug
 410         local cmdSetDbgOff = "hf mf dbg 0"
 411         core.console( cmdSetDbgOff)
 412
 413         -- GET TAG UID
 414
 415         result, err = lib14a.read1443a(false)
 416         if not result then
 417                 return oops(err)
 418         end
 419         core.clearCommandBuffer()
 420
 421         -- Show tag info
 422         print((' Found tag %s'):format(result.name))
 423
 424         local longrandom = RANDOM..result.uid
 425         local res = utils.Sha1Hex(longrandom)
 426         res  = utils.ConvertBytesToHex(utils.ConvertAsciiToBytes(res:sub(1,16)))
 427         magic = utils.SwapEndiannessStr(res:sub(1,8) , 32)
 428         magic = magic..utils.SwapEndiannessStr( res:sub(9,16),32)
 429         magic = magic..utils.SwapEndiannessStr( res:sub(17,24),32)
 430         magic = magic..utils.SwapEndiannessStr( res:sub(25,32),32)
 431         print('Reading card data')
 432         print('Raw','Decrypted')
 433         for blockNo = 0, numBlocks-1, 1 do
 434
 435                 if core.ukbhit() then
 436                         print("aborted by user")
 437                         break
 438                 end
 439
 440                 cmd = Command:new{cmd = cmds.CMD_MIFARE_READBL, arg1 = blockNo ,arg2 = 0,arg3 = 0, data = keyA}
 441                 local err = core.SendCommand(cmd:getBytes())
 442                 if err then return oops(err) end
 443                 local blockdata, err = waitCmd()
 444                 if err then return oops(err) end
 445
 446                 if  blockNo%4 ~= 3 then
 447
 448                         -- blocks with zero not encrypted.
 449                         if string.find(blockdata, '^0+$') then
 450                                 print(blockdata, blockdata)
 451                         else
 452                                 local aes = core.aes128_decrypt_ecb(magic, blockdata)
 453                                 local bytes =  utils.ConvertAsciiToBytes(aes)
 454                                 local hex = utils.ConvertBytesToHex(bytes)
 455                                 print(blockdata , hex)
 456                         end
 457                 elseif blockNo == 0 then
 458                         print(blockdata,blockdata)
 459                 else
 460                         -- Sectorblocks, not encrypted
 461                         local sectortrailer = keyA..blockdata:sub(13,20)..keyA
 462                         print(sectortrailer, sectortrailer, blockdata:sub(13,20))
 463                 end
 464         end
 465 end
 466
 467 main(args)