X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/c70cef9734647bed49c76a78f5a10c086e0f2ffc..22f1c57786097d373e6d4706588b5d9e9a09e8e5:/client/scripts/tnp3.lua diff --git a/client/scripts/tnp3.lua b/client/scripts/tnp3.lua index ea7c3a23..56d0b486 100644 --- a/client/scripts/tnp3.lua +++ b/client/scripts/tnp3.lua @@ -4,21 +4,27 @@ local bin = require('bin') local lib14a = require('read14a') local utils = require('utils') local md5 = require('md5') +local toyNames = require('default_toys') example =[[ 1. script run tnp3 - 2. script run tnp3 -k aabbccddeeff + 2. script run tnp3 -n + 3. script run tnp3 -k aabbccddeeff + 4. script run tnp3 -k aabbccddeeff -n ]] author = "Iceman" -usage = "script run tnp3 -k " +usage = "script run tnp3 -k -n" 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 - Sector 0 Key A. + -h : this help + -k : Sector 0 Key A. + -n : Use the nested cmd to find all keys ]] +-- AES konstant? LEN 0x24 36, +-- I dekompilen är det för internal static array = 0x36 54 local hashconstant = '20436F707972696768742028432920323031302041637469766973696F6E2E20416C6C205269676874732052657365727665642E20' local TIMEOUT = 2000 -- Shouldn't take longer than 2 seconds @@ -63,19 +69,10 @@ function ExitMsg(msg) print() end -local function show(data) - if DEBUG then - local formatString = ("H%d"):format(string.len(data)) - local _,hexdata = bin.unpack(formatString, data) - dbg("Hexdata" , hexdata) - end -end - local function readdumpkeys(infile) t = infile:read("*all") len = string.len(t) local len,hex = bin.unpack(("H%d"):format(len),t) - --print(len,hex) return hex end @@ -96,19 +93,21 @@ end local function main(args) print( string.rep('--',20) ) - print( string.rep('--',20) ) - print() + --print( string.rep('--',20) ) + --print() local keyA local cmd local err + local useNested = false local cmdReadBlockString = 'hf mf rdbl %d A %s' local input = "dumpkeys.bin" -- Arguments for the script - for o, a in getopt.getopt(args, 'hk:') do + for o, a in getopt.getopt(args, 'hk:n') do if o == "h" then return help() end if o == "k" then keyA = a end + if o == "n" then useNested = true end end -- validate input args. @@ -116,38 +115,40 @@ local function main(args) 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 - print(err) - return + return oops(err) end - print((' Found tag : %s'):format(result.name)) core.clearCommandBuffer() if 0x01 ~= result.sak then -- NXP MIFARE TNP3xxx - print('This is not a TNP3xxx tag. aborting.') - return + return oops('This is not a TNP3xxx tag. aborting.') end + print((' Found tag : %s'):format(result.name)) + -- Show info print(('Using keyA : %s'):format(keyA)) print( string.rep('--',20) ) - print('Trying to find other keys. ') - --core.console( ('hf mf nested 1 0 A %s d'):format(keyA) ) + --Trying to find the other keys + if useNested then + core.console( ('hf mf nested 1 0 A %s d'):format(keyA) ) + end - -- Reading found keys file + -- Loading keyfile + print('Loading dumpkeys.bin') local infile = io.open(input, "rb") if infile == nil then return oops('Could not read file ', input) end local akeys = readdumpkeys(infile):sub(0,12*16) - - --print( ('KEYS: %s'):format(akeys)) - - print('Reading data need to dump data') -- Read block 0 cmd = Command:new{cmd = cmds.CMD_MIFARE_READBL, arg1 = 0,arg2 = 0,arg3 = 0, data = keyA} @@ -158,52 +159,78 @@ local function main(args) -- Read block 1 cmd = Command:new{cmd = cmds.CMD_MIFARE_READBL, arg1 = 1,arg2 = 0,arg3 = 0, data = keyA} - local err = core.SendCommand(cmd:getBytes()) + err = core.SendCommand(cmd:getBytes()) if err then return oops(err) end local block1, err = waitCmd() if err then return oops(err) end - print('Dumping data') + local key + local pos = 0 + local blockNo + local blocks = {} + print('Reading card data') + -- main loop - print('BLOCK MD5 DECRYPTED ASCII' ) + for blockNo = 0, numBlocks-1, 1 do - local key - local keyPosStart = 0 - local block - for block = 0, numBlocks-1, 1 do - local b = (block+1)%4 - if b ~= 0 then - keyPosStart = (math.floor( block / 4 ) * 12)+1 - key = akeys:sub(keyPosStart, keyPosStart + 12 ) - --print( ('%02d %s'):format(block, key)) - - cmd = Command:new{cmd = cmds.CMD_MIFARE_READBL, arg1 = block ,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 core.ukbhit() then + print("aborted by user") + break + end - local base = ('%s%s%02d%s'):format(block0, block1, block, hashconstant) - local md5hash = md5.sumhexa(base) - local aestest = core.aes(md5hash, blockdata) - - local _,hex = bin.unpack(("H%d"):format(16),aestest) - - local hexascii = string.gsub(hex, '(%x%x)', - function(value) - return string.char(tonumber(value, 16)) - end - ) - - print( ('%02d :: %s :: %s :: %s :: %s'):format(block,key,md5hash,hex,hexascii) ) - - if core.ukbhit() then - print("aborted by user") - break + 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 + + local b = blockNo%4 + + if b ~= 3 then + if blockNo < 8 then + -- Block 0-7 not encrypted + blocks[blockNo+1] = ('%02d :: %s :: %s'):format(blockNo,blockdata,blockdata) + else + local base = ('%s%s%d%s'):format(block0, block1, blockNo, hashconstant) local md5hash = md5.sumhexa(base) + local aestest = core.aes(md5hash, blockdata) + + local _,hex = bin.unpack(("H%d"):format(16),aestest) + + -- local hexascii = string.gsub(hex, '(%x%x)', + -- function(value) + -- return string.char(tonumber(value, 16)) + -- end + -- ) + + if string.find(blockdata, '^0+$') then + blocks[blockNo+1] = ('%02d :: %s :: %s'):format(blockNo,blockdata,blockdata) + else + --blocks[blockNo+1] = ('%02d :: %s :: %s :: %s '):format(blockNo,key,md5hash,hex) + blocks[blockNo+1] = ('%02d :: %s :: %s'):format(blockNo,blockdata,hex) + end end + + else + -- Sectorblocks, not encrypted + blocks[blockNo+1] = ('%02d :: %s :: %s'):format(blockNo,blockdata,blockdata) end end + + -- Print results + local uid = block0:sub(1,8) + local itemtype = block1:sub(1,4) + local cardid = block1:sub(9,24) + print( (' UID : %s'):format(uid) ) + print( (' ITEM TYPE : %s - %s'):format(itemtype, toyNames[itemtype]) ) + print( (' CARDID : %s'):format(cardid ) ) + print('BLK :: DATA DECRYPTED' ) + print( string.rep('--',36) ) + for _,s in pairs(blocks) do + print( s ) + end end main(args) \ No newline at end of file