--- /dev/null
+local cmds = require('commands')
+local getopt = require('getopt')
+local bin = require('bin')
+local lib14a = require('read14a')
+local utils = require('utils')
+local md5 = require('md5')
+local dumplib = require('html_dumplib')
+local toyNames = require('default_toys')
+
+example =[[
+ 1. script run tnp3dump
+ 2. script run tnp3dump -n
+ 3. script run tnp3dump -k aabbccddeeff
+ 4. script run tnp3dump -k aabbccddeeff -n
+ 5. script run tnp3dump -o myfile
+ 6. script run tnp3dump -n -o myfile
+ 7. script run tnp3dump -k aabbccddeeff -n -o myfile
+]]
+author = "Iceman"
+usage = "script run tnp3dump -k <key> -n -o <filename>"
+desc =[[
+This script will try to dump the contents of a Mifare TNP3xxx card.
+It will need a valid KeyA in order to find the other keys and decode the card.
+Arguments:
+ -h : this help
+ -k <key> : Sector 0 Key A.
+ -n : Use the nested cmd to find all keys
+ -o : filename for the saved dumps
+]]
+
+local HASHCONSTANT = '20436F707972696768742028432920323031302041637469766973696F6E2E20416C6C205269676874732052657365727665642E20'
+
+local TIMEOUT = 2000 -- Shouldn't take longer than 2 seconds
+local DEBUG = false -- the debug flag
+local numBlocks = 64
+local numSectors = 16
+---
+-- A debug printout-function
+function dbg(args)
+ if not DEBUG then
+ return
+ end
+
+ if type(args) == "table" then
+ local i = 1
+ while result[i] do
+ dbg(result[i])
+ i = i+1
+ end
+ else
+ print("###", args)
+ end
+end
+---
+-- This is only meant to be used when errors occur
+function oops(err)
+ print("ERROR: ",err)
+end
+---
+-- Usage help
+function help()
+ print(desc)
+ print("Example usage")
+ print(example)
+end
+--
+-- Exit message
+function ExitMsg(msg)
+ print( string.rep('--',20) )
+ print( string.rep('--',20) )
+ print(msg)
+ print()
+end
+
+local function readdumpkeys(infile)
+ t = infile:read("*all")
+ len = string.len(t)
+ local len,hex = bin.unpack(("H%d"):format(len),t)
+ return hex
+end
+
+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 computeCrc16(s)
+ local hash = core.crc16(utils.ConvertHexToAscii(s))
+ return hash
+end
+
+local function reverseCrcBytes(crc)
+ crc2 = crc:sub(3,4)..crc:sub(1,2)
+ return tonumber(crc2,16)
+end
+
+local function main(args)
+
+ print( string.rep('--',20) )
+ print( string.rep('--',20) )
+
+ local keyA
+ local cmd
+ local err
+ local useNested = false
+ local cmdReadBlockString = 'hf mf rdbl %d A %s'
+ local input = "dumpkeys.bin"
+ local outputTemplate = os.date("toydump_%Y-%m-%d_%H%M%S");
+
+ -- Arguments for the script
+ for o, a in getopt.getopt(args, 'hk:no:') do
+ if o == "h" then return help() end
+ if o == "k" then keyA = a end
+ if o == "n" then useNested = true end
+ if o == "o" then outputTemplate = a end
+ end
+
+ -- validate input args.
+ keyA = keyA or '4b0b20107ccb'
+ 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)
+
+ result, err = lib14a.read1443a(false)
+ if not result then
+ return oops(err)
+ end
+
+ core.clearCommandBuffer()
+
+ if 0x01 ~= result.sak then -- NXP MIFARE TNP3xxx
+ return oops('This is not a TNP3xxx tag. aborting.')
+ end
+
+ -- Show tag info
+ print((' Found tag : %s'):format(result.name))
+ print(('Using keyA : %s'):format(keyA))
+
+ --Trying to find the other keys
+ if useNested then
+ core.console( ('hf mf nested 1 0 A %s d'):format(keyA) )
+ end
+
+ core.clearCommandBuffer()
+
+ -- Loading keyfile
+ print('Loading dumpkeys.bin')
+ local hex, err = utils.ReadDumpFile(input)
+ if not hex then
+ return oops(err)
+ end
+
+ local akeys = hex:sub(0,12*16)
+
+ -- Read block 0
+ cmd = Command:new{cmd = cmds.CMD_MIFARE_READBL, arg1 = 0,arg2 = 0,arg3 = 0, data = keyA}
+ err = core.SendCommand(cmd:getBytes())
+ if err then return oops(err) end
+ local block0, err = waitCmd()
+ if err then return oops(err) end
+
+ -- Read block 1
+ cmd = Command:new{cmd = cmds.CMD_MIFARE_READBL, arg1 = 1,arg2 = 0,arg3 = 0, data = keyA}
+ err = core.SendCommand(cmd:getBytes())
+ if err then return oops(err) end
+ local block1, err = waitCmd()
+ if err then return oops(err) end
+
+ local key
+ local pos = 0
+ local blockNo
+ local blocks = {}
+
+ print('Reading card data')
+ core.clearCommandBuffer()
+
+ -- main loop
+ io.write('Decrypting blocks > ')
+ for blockNo = 0, numBlocks-1, 1 do
+
+ if core.ukbhit() then
+ print("aborted by user")
+ break
+ end
+
+ pos = (math.floor( blockNo / 4 ) * 12)+1
+ key = akeys:sub(pos, pos + 11 )
+ cmd = Command:new{cmd = cmds.CMD_MIFARE_READBL, arg1 = blockNo ,arg2 = 0,arg3 = 0, data = key}
+ 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
+ if blockNo < 8 then
+ -- Block 0-7 not encrypted
+ blocks[blockNo+1] = ('%02d :: %s'):format(blockNo,blockdata)
+ else
+ local base = ('%s%s%02x%s'):format(block0, block1, blockNo, HASHCONSTANT)
+ local baseStr = utils.ConvertHexToAscii(base)
+ local md5hash = md5.sumhexa(baseStr)
+ local aestest = core.aes(md5hash, blockdata)
+
+ local hex = utils.ConvertAsciiToBytes(aestest)
+ hex = utils.ConvertBytesToHex(hex)
+
+ -- blocks with zero not encrypted.
+ if string.find(blockdata, '^0+$') then
+ blocks[blockNo+1] = ('%02d :: %s'):format(blockNo,blockdata)
+ else
+ blocks[blockNo+1] = ('%02d :: %s'):format(blockNo,hex)
+ io.write( blockNo..',')
+ end
+ end
+ else
+ -- Sectorblocks, not encrypted
+ blocks[blockNo+1] = ('%02d :: %s%s'):format(blockNo,key,blockdata:sub(13,32))
+ end
+ end
+ io.write('\n')
+
+ core.clearCommandBuffer()
+
+ -- Print results
+ local bindata = {}
+ local emldata = ''
+
+ for _,s in pairs(blocks) do
+ local slice = s:sub(8,#s)
+ local str = utils.ConvertBytesToAscii(
+ utils.ConvertHexToBytes(slice)
+ )
+ emldata = emldata..slice..'\n'
+ for c in (str):gmatch('.') do
+ bindata[#bindata+1] = c
+ end
+ end
+
+ -- Write dump to files
+ if not DEBUG then
+ local foo = dumplib.SaveAsBinary(bindata, outputTemplate..'.bin')
+ print(("Wrote a BIN dump to the file %s"):format(foo))
+ local bar = dumplib.SaveAsText(emldata, outputTemplate..'.eml')
+ print(("Wrote a EML dump to the file %s"):format(bar))
+ end
+
+ local uid = block0:sub(1,8)
+ local itemtype = block1:sub(1,4)
+ local cardid = block1:sub(9,24)
+
+ -- Show info
+ print( string.rep('--',20) )
+ print( (' ITEM TYPE : 0x%s - %s'):format(itemtype, toyNames[itemtype]) )
+ print( (' UID : 0x%s'):format(uid) )
+ print( (' CARDID : 0x%s'):format(cardid ) )
+ print( string.rep('--',20) )
+
+end
+main(args)
\ No newline at end of file
projects / proxmark3-svn / blobdiff