+local cmds = require('commands')
+local getopt = require('getopt')
+local utils = require('utils')
+local lib14a = require('read14a')
+
+example =[[
+ script run didump
+ script run didump -k aabbccddeeff
+]]
+author = "Iceman"
+usage = "script run didump -k <key> "
+desc = [[
+This is a script to dump and decrypt the data of a specific type of Mifare Mini token.
+
+Arguments:
+ -h : this help
+ -k <key> : Mifare Key A.
+]]
+
+local band=bit32.band
+local bor=bit32.bor
+local bnot=bit32.bnot
+local bxor=bit32.bxor
+local lshift=bit32.lshift
+local rshift=bit32.rshift
+
+local FOO = 'AF62D2EC0491968CC52A1A7165F865FE'
+local BAR = '286329204469736E65792032303133'
+local RANDOM = FOO..BAR
+local outputTemplate = os.date("toydump_%Y-%m-%d_%H%M%S");
+local TIMEOUT = 2000
+local DEBUG = false
+local numBlocks = 20
+local numSectors = 5
+local CHECKSUM_OFFSET = 12; -- +1???
+---
+-- A debug printout-function
+function dbg(args)
+ if DEBUG then
+ print("###", args)
+ end
+end
+---
+-- This is only meant to be used when errors occur
+function oops(err)
+ print("ERROR: ",err)
+ core.clearCommandBuffer()
+end
+---
+-- Usage help
+function help()
+ print(desc)
+ print("Example usage")
+ print(example)
+end
+---
+-- Get checksum,
+-- called: data is string (32 hex digits)
+-- returns: number
+local function getChecksum(data)
+ local chksum = data:sub(25,32)
+ return tonumber(chksum,16)
+end
+---
+-- calculate checksum
+-- called: data is bytes (24 hex digits)
+-- returns: number
+local function calculateChecksum(data)
+
+ -- Generate table
+ local _tbl = {}
+_tbl[0] = { 0x0 }
+_tbl[1] = { 0x77073096 }
+_tbl[2] = { 0xEE0E612C }
+_tbl[3] = { 0x990951BA }
+_tbl[4] = { 0x76DC419 }
+_tbl[5] = { 0x706AF48F }
+_tbl[6] = { 0xE963A535 }
+_tbl[7] = { 0x9E6495A3 }
+_tbl[8] = { 0xEDB8832 }
+_tbl[9] = { 0x79DCB8A4 }
+_tbl[10] = { 0xE0D5E91E }
+_tbl[11] = { 0x97D2D988 }
+_tbl[12] = { 0x9B64C2B }
+_tbl[13] = { 0x7EB17CBD }
+_tbl[14] = { 0xE7B82D07 }
+_tbl[15] = { 0x90BF1D91 }
+_tbl[16] = { 0x1DB71064 }
+_tbl[17] = { 0x6AB020F2 }
+_tbl[18] = { 0xF3B97148 }
+_tbl[19] = { 0x84BE41DE }
+_tbl[20] = { 0x1ADAD47D }
+_tbl[21] = { 0x6DDDE4EB }
+_tbl[22] = { 0xF4D4B551 }
+_tbl[23] = { 0x83D385C7 }
+_tbl[24] = { 0x136C9856 }
+_tbl[25] = { 0x646BA8C0 }
+_tbl[26] = { 0xFD62F97A }
+_tbl[27] = { 0x8A65C9EC }
+_tbl[28] = { 0x14015C4F }
+_tbl[29] = { 0x63066CD9 }
+_tbl[30] = { 0xFA0F3D63 }
+_tbl[31] = { 0x8D080DF5 }
+_tbl[32] = { 0x3B6E20C8 }
+_tbl[33] = { 0x4C69105E }
+_tbl[34] = { 0xD56041E4 }
+_tbl[35] = { 0xA2677172 }
+_tbl[36] = { 0x3C03E4D1 }
+_tbl[37] = { 0x4B04D447 }
+_tbl[38] = { 0xD20D85FD }
+_tbl[39] = { 0xA50AB56B }
+_tbl[40] = { 0x35B5A8FA }
+_tbl[41] = { 0x42B2986C }
+_tbl[42] = { 0xDBBBC9D6 }
+_tbl[43] = { 0xACBCF940 }
+_tbl[44] = { 0x32D86CE3 }
+_tbl[45] = { 0x45DF5C75 }
+_tbl[46] = { 0xDCD60DCF }
+_tbl[47] = { 0xABD13D59 }
+_tbl[48] = { 0x26D930AC }
+_tbl[49] = { 0x51DE003A }
+_tbl[50] = { 0xC8D75180 }
+_tbl[51] = { 0xBFD06116 }
+_tbl[52] = { 0x21B4F4B5 }
+_tbl[53] = { 0x56B3C423 }
+_tbl[54] = { 0xCFBA9599 }
+_tbl[55] = { 0xB8BDA50F }
+_tbl[56] = { 0x2802B89E }
+_tbl[57] = { 0x5F058808 }
+_tbl[58] = { 0xC60CD9B2 }
+_tbl[59] = { 0xB10BE924 }
+_tbl[60] = { 0x2F6F7C87 }
+_tbl[61] = { 0x58684C11 }
+_tbl[62] = { 0xC1611DAB }
+_tbl[63] = { 0xB6662D3D }
+_tbl[64] = { 0x76DC4190 }
+_tbl[65] = { 0x1DB7106 }
+_tbl[66] = { 0x98D220BC }
+_tbl[67] = { 0xEFD5102A }
+_tbl[68] = { 0x71B18589 }
+_tbl[69] = { 0x6B6B51F }
+_tbl[70] = { 0x9FBFE4A5 }
+_tbl[71] = { 0xE8B8D433 }
+_tbl[72] = { 0x7807C9A2 }
+_tbl[73] = { 0xF00F934 }
+_tbl[74] = { 0x9609A88E }
+_tbl[75] = { 0xE10E9818 }
+_tbl[76] = { 0x7F6A0DBB }
+_tbl[77] = { 0x86D3D2D }
+_tbl[78] = { 0x91646C97 }
+_tbl[79] = { 0xE6635C01 }
+_tbl[80] = { 0x6B6B51F4 }
+_tbl[81] = { 0x1C6C6162 }
+_tbl[82] = { 0x856530D8 }
+_tbl[83] = { 0xF262004E }
+_tbl[84] = { 0x6C0695ED }
+_tbl[85] = { 0x1B01A57B }
+_tbl[86] = { 0x8208F4C1 }
+_tbl[87] = { 0xF50FC457 }
+_tbl[88] = { 0x65B0D9C6 }
+_tbl[89] = { 0x12B7E950 }
+_tbl[90] = { 0x8BBEB8EA }
+_tbl[91] = { 0xFCB9887C }
+_tbl[92] = { 0x62DD1DDF }
+_tbl[93] = { 0x15DA2D49 }
+_tbl[94] = { 0x8CD37CF3 }
+_tbl[95] = { 0xFBD44C65 }
+_tbl[96] = { 0x4DB26158 }
+_tbl[97] = { 0x3AB551CE }
+_tbl[98] = { 0xA3BC0074 }
+_tbl[99] = { 0xD4BB30E2 }
+_tbl[100] = { 0x4ADFA541 }
+_tbl[101] = { 0x3DD895D7 }
+_tbl[102] = { 0xA4D1C46D }
+_tbl[103] = { 0xD3D6F4FB }
+_tbl[104] = { 0x4369E96A }
+_tbl[105] = { 0x346ED9FC }
+_tbl[106] = { 0xAD678846 }
+_tbl[107] = { 0xDA60B8D0 }
+_tbl[108] = { 0x44042D73 }
+_tbl[109] = { 0x33031DE5 }
+_tbl[110] = { 0xAA0A4C5F }
+_tbl[111] = { 0xDD0D7CC9 }
+_tbl[112] = { 0x5005713C }
+_tbl[113] = { 0x270241AA }
+_tbl[114] = { 0xBE0B1010 }
+_tbl[115] = { 0xC90C2086 }
+_tbl[116] = { 0x5768B525 }
+_tbl[117] = { 0x206F85B3 }
+_tbl[118] = { 0xB966D409 }
+_tbl[119] = { 0xCE61E49F }
+_tbl[120] = { 0x5EDEF90E }
+_tbl[121] = { 0x29D9C998 }
+_tbl[122] = { 0xB0D09822 }
+_tbl[123] = { 0xC7D7A8B4 }
+_tbl[124] = { 0x59B33D17 }
+_tbl[125] = { 0x2EB40D81 }
+_tbl[126] = { 0xB7BD5C3B }
+_tbl[127] = { 0xC0BA6CAD }
+_tbl[128] = { 0xEDB88320 }
+_tbl[129] = { 0x9ABFB3B6 }
+_tbl[130] = { 0x3B6E20C }
+_tbl[131] = { 0x74B1D29A }
+_tbl[132] = { 0xEAD54739 }
+_tbl[133] = { 0x9DD277AF }
+_tbl[134] = { 0x4DB2615 }
+_tbl[135] = { 0x73DC1683 }
+_tbl[136] = { 0xE3630B12 }
+_tbl[137] = { 0x94643B84 }
+_tbl[138] = { 0xD6D6A3E }
+_tbl[139] = { 0x7A6A5AA8 }
+_tbl[140] = { 0xE40ECF0B }
+_tbl[141] = { 0x9309FF9D }
+_tbl[142] = { 0xA00AE27 }
+_tbl[143] = { 0x7D079EB1 }
+_tbl[144] = { 0xF00F9344 }
+_tbl[145] = { 0x8708A3D2 }
+_tbl[146] = { 0x1E01F268 }
+_tbl[147] = { 0x6906C2FE }
+_tbl[148] = { 0xF762575D }
+_tbl[149] = { 0x806567CB }
+_tbl[150] = { 0x196C3671 }
+_tbl[151] = { 0x6E6B06E7 }
+_tbl[152] = { 0xFED41B76 }
+_tbl[153] = { 0x89D32BE0 }
+_tbl[154] = { 0x10DA7A5A }
+_tbl[155] = { 0x67DD4ACC }
+_tbl[156] = { 0xF9B9DF6F }
+_tbl[157] = { 0x8EBEEFF9 }
+_tbl[158] = { 0x17B7BE43 }
+_tbl[159] = { 0x60B08ED5 }
+_tbl[160] = { 0xD6D6A3E8 }
+_tbl[161] = { 0xA1D1937E }
+_tbl[162] = { 0x38D8C2C4 }
+_tbl[163] = { 0x4FDFF252 }
+_tbl[164] = { 0xD1BB67F1 }
+_tbl[165] = { 0xA6BC5767 }
+_tbl[166] = { 0x3FB506DD }
+_tbl[167] = { 0x48B2364B }
+_tbl[168] = { 0xD80D2BDA }
+_tbl[169] = { 0xAF0A1B4C }
+_tbl[170] = { 0x36034AF6 }
+_tbl[171] = { 0x41047A60 }
+_tbl[172] = { 0xDF60EFC3 }
+_tbl[173] = { 0xA867DF55 }
+_tbl[174] = { 0x316E8EEF }
+_tbl[175] = { 0x4669BE79 }
+_tbl[176] = { 0xCB61B38C }
+_tbl[177] = { 0xBC66831A }
+_tbl[178] = { 0x256FD2A0 }
+_tbl[179] = { 0x5268E236 }
+_tbl[180] = { 0xCC0C7795 }
+_tbl[181] = { 0xBB0B4703 }
+_tbl[182] = { 0x220216B9 }
+_tbl[183] = { 0x5505262F }
+_tbl[184] = { 0xC5BA3BBE }
+_tbl[185] = { 0xB2BD0B28 }
+_tbl[186] = { 0x2BB45A92 }
+_tbl[187] = { 0x5CB36A04 }
+_tbl[188] = { 0xC2D7FFA7 }
+_tbl[189] = { 0xB5D0CF31 }
+_tbl[190] = { 0x2CD99E8B }
+_tbl[191] = { 0x5BDEAE1D }
+_tbl[192] = { 0x9B64C2B0 }
+_tbl[193] = { 0xEC63F226 }
+_tbl[194] = { 0x756AA39C }
+_tbl[195] = { 0x26D930A }
+_tbl[196] = { 0x9C0906A9 }
+_tbl[197] = { 0xEB0E363F }
+_tbl[198] = { 0x72076785 }
+_tbl[199] = { 0x5005713 }
+_tbl[200] = { 0x95BF4A82 }
+_tbl[201] = { 0xE2B87A14 }
+_tbl[202] = { 0x7BB12BAE }
+_tbl[203] = { 0xCB61B38 }
+_tbl[204] = { 0x92D28E9B }
+_tbl[205] = { 0xE5D5BE0D }
+_tbl[206] = { 0x7CDCEFB7 }
+_tbl[207] = { 0xBDBDF21 }
+_tbl[208] = { 0x86D3D2D4 }
+_tbl[209] = { 0xF1D4E242 }
+_tbl[210] = { 0x68DDB3F8 }
+_tbl[211] = { 0x1FDA836E }
+_tbl[212] = { 0x81BE16CD }
+_tbl[213] = { 0xF6B9265B }
+_tbl[214] = { 0x6FB077E1 }
+_tbl[215] = { 0x18B74777 }
+_tbl[216] = { 0x88085AE6 }
+_tbl[217] = { 0xFF0F6A70 }
+_tbl[218] = { 0x66063BCA }
+_tbl[219] = { 0x11010B5C }
+_tbl[220] = { 0x8F659EFF }
+_tbl[221] = { 0xF862AE69 }
+_tbl[222] = { 0x616BFFD3 }
+_tbl[223] = { 0x166CCF45 }
+_tbl[224] = { 0xA00AE278 }
+_tbl[225] = { 0xD70DD2EE }
+_tbl[226] = { 0x4E048354 }
+_tbl[227] = { 0x3903B3C2 }
+_tbl[228] = { 0xA7672661 }
+_tbl[229] = { 0xD06016F7 }
+_tbl[230] = { 0x4969474D }
+_tbl[231] = { 0x3E6E77DB }
+_tbl[232] = { 0xAED16A4A }
+_tbl[233] = { 0xD9D65ADC }
+_tbl[234] = { 0x40DF0B66 }
+_tbl[235] = { 0x37D83BF0 }
+_tbl[236] = { 0xA9BCAE53 }
+_tbl[237] = { 0xDEBB9EC5 }
+_tbl[238] = { 0x47B2CF7F }
+_tbl[239] = { 0x30B5FFE9 }
+_tbl[240] = { 0xBDBDF21C }
+_tbl[241] = { 0xCABAC28A }
+_tbl[242] = { 0x53B39330 }
+_tbl[243] = { 0x24B4A3A6 }
+_tbl[244] = { 0xBAD03605 }
+_tbl[245] = { 0xCDD70693 }
+_tbl[246] = { 0x54DE5729 }
+_tbl[247] = { 0x23D967BF }
+_tbl[248] = { 0xB3667A2E }
+_tbl[249] = { 0xC4614AB8 }
+_tbl[250] = { 0x5D681B02 }
+_tbl[251] = { 0x2A6F2B94 }
+_tbl[252] = { 0xB40BBE37 }
+_tbl[253] = { 0xC30C8EA1 }
+_tbl[254] = { 0x5A05DF1B }
+_tbl[255] = { 0x2D02EF8D }
+
+
+ -- Calculate it
+ local ret = 0
+ for i,item in pairs(data) do
+ local tmp = band(ret, 0xFF)
+ local index = band( bxor(tmp, item), 0xFF)
+ ret = bxor(rshift(ret,8), _tbl[index][1])
+ end
+ return ret
+end
+---
+-- update checksum
+-- called: data is string, ( >= 24 hex digits )
+-- returns: string, (data concat new checksum)
+local function updateChecksum(data)
+ local part = data:sub(1,24)
+ local chksum = calculateChecksum( utils.ConvertHexToBytes(part))
+ return string.format("%s%X", part, chksum)
+end
+---
+-- receives the answer from deviceside, used with a readblock command
+local function waitCmd()
+ local response = core.WaitForResponseTimeout(cmds.CMD_ACK,TIMEOUT)
+ if response then
+ local count,cmd,arg0 = bin.unpack('LL',response)
+ if(arg0==1) then
+ local count,arg1,arg2,data = bin.unpack('LLH511',response,count)
+ return data:sub(1,32)
+ else
+ return nil, "Couldn't read block.."
+ end
+ end
+ return nil, "No response from device"
+end
+
+local function selftest()
+ local testdata = '000F42430D0A14000001D11F'..'5D738517'
+ local chksum = getChecksum(testdata)
+ local calc = calculateChecksum( utils.ConvertHexToBytes(testdata:sub(1,24)))
+ print ('TESTDATA :: '..testdata)
+ print ('DATA :: '..testdata:sub(1,24))
+ print (('CHKSUM :: %X'):format(chksum))
+ print (('CHKSUM CALC :: %X'):format(calc))
+ print ('UPDATE CHKSUM :: '..updateChecksum(testdata))
+
+
+end
+---
+-- The main entry point
+-- -d decrypt
+-- -e encrypt
+-- -v validate
+function main(args)
+
+ local cmd, result, err, blockNo, keyA
+ local blocks = {}
+ local decryptkey = ''
+
+ -- Read the parameters
+ for o, a in getopt.getopt(args, 'hk:') do
+ if o == "h" then help() return end
+ if o == "k" then keyA = a end
+ end
+
+ selftest()
+
+ local tst2 = '00100100030209094312356432324E34B79A349B'
+
+ -- validate input args.
+ keyA = keyA or '6dd747e86975'
+ if #(keyA) ~= 12 then
+ return oops( string.format('Wrong length of write key (was %d) expected 12', #keyA))
+ end
+
+ -- Turn off Debug
+ local cmdSetDbgOff = "hf mf dbg 0"
+ core.console( cmdSetDbgOff)
+
+ -- GET TAG UID
+
+ result, err = lib14a.read1443a(false)
+ if not result then
+ return oops(err)
+ end
+
+ core.clearCommandBuffer()
+
+ print(result.uid, keyA)
+
+ local my = result.uid
+ if 1 == 1 then
+ return
+ end
+
+ -- Show tag info
+ print((' Found tag %s'):format(result.name))
+
+ local longrandom = RANDOM..result.uid
+ local res = utils.Sha1Hex(longrandom)
+ res = utils.ConvertBytesToHex(utils.ConvertAsciiToBytes(res:sub(1,16)))
+ decryptkey = utils.SwapEndiannessStr(res:sub(1,8) , 32)
+ decryptkey = decryptkey..utils.SwapEndiannessStr( res:sub(9,16),32)
+ decryptkey = decryptkey..utils.SwapEndiannessStr( res:sub(17,24),32)
+ decryptkey = decryptkey..utils.SwapEndiannessStr( res:sub(25,32),32)
+ print('Decrypt key::',decryptkey)
+ print('Reading card data')
+ print('Raw','Decrypted')
+ for blockNo = 0, numBlocks-1, 1 do
+
+ if core.ukbhit() then
+ print("aborted by user")
+ break
+ end
+
+ cmd = Command:new{cmd = cmds.CMD_MIFARE_READBL, arg1 = blockNo ,arg2 = 0,arg3 = 0, data = keyA}
+ local err = core.SendCommand(cmd:getBytes())
+ if err then return oops(err) end
+ local blockdata, err = waitCmd()
+ if err then return oops(err) end
+
+ if blockNo%4 ~= 3 then
+
+ -- blocks with zero not encrypted.
+ if string.find(blockdata, '^0+$') then
+ print(blockdata, blockdata)
+ else
+ local aes = core.aes128_decrypt_ecb(decryptkey, blockdata)
+ local bytes = utils.ConvertAsciiToBytes(aes)
+ local hex = utils.ConvertBytesToHex(bytes)
+ print(blockdata , hex)
+ end
+ elseif blockNo == 0 then
+ print(blockdata,blockdata)
+ else
+ -- Sectorblocks, not encrypted
+ local sectortrailer = keyA..blockdata:sub(13,20)..keyA
+ print(sectortrailer, sectortrailer, blockdata:sub(13,20))
+ end
+ end
+ -- checksum fyra sista bytes i varje rad. (kanske inte för s0)
+ -- s0b1,s1b0,s2b0,s3b0
+ --
+end
+
+main(args)