X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/c15d2bdc9b25da89931c767902639fa7e8c9b764..8aa79dee20c4df50734897c979b17bcf387c77f6:/client/scripts/tnp3.lua diff --git a/client/scripts/tnp3.lua b/client/scripts/tnp3.lua index 3eb5af1c..ebe1c6db 100644 --- a/client/scripts/tnp3.lua +++ b/client/scripts/tnp3.lua @@ -7,18 +7,23 @@ local md5 = require('md5') 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 @@ -63,15 +68,14 @@ 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 +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 -function waitCmd() +local function waitCmd() local response = core.WaitForResponseTimeout(cmds.CMD_ACK,TIMEOUT) if response then local count,cmd,arg0 = bin.unpack('LL',response) @@ -94,12 +98,15 @@ local function main(args) 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. @@ -110,29 +117,33 @@ local function main(args) result, err = lib14a.read1443a(false) if not result then - print(err) - return + return oops(err) end - print((" Found tag : %s"):format(result.name)) + + 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 -- Show info print(('Using keyA : %s'):format(keyA)) print( string.rep('--',20) ) - local cmdNestedString = 'hf mf nested 1 0 A %s d' - local cmdDumpString = 'hf mf dump' - --core.console(cmdNestedString.format(keyA) ) - --core.console(cmdDumpString) - - print('Reading data need to dump data') + print('Trying to find other keys.') + if useNested then + core.console( ('hf mf nested 1 0 A %s d'):format(keyA) ) + end + -- Loading keyfile + 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) + -- Read block 0 cmd = Command:new{cmd = cmds.CMD_MIFARE_READBL, arg1 = 0,arg2 = 0,arg3 = 0, data = keyA} err = core.SendCommand(cmd:getBytes()) @@ -142,48 +153,60 @@ 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 + local key + local pos = 0 + local blockNo + local blocks = {} - -- Read block 9 - cmd = Command:new{cmd = cmds.CMD_MIFARE_READBL, arg1 = 9,arg2 = 0,arg3 = 0, data = '56f6313550f9'} - local err = core.SendCommand(cmd:getBytes()) - if err then return oops(err) end - local block9, err = waitCmd() - if err then return oops(err) end - -- main loop - print('BLOCK MD5 DECRYPTED ASCII' ) - - for block=0,numBlocks-1,1 do + for blockNo = 8, numBlocks-1, 1 do + local b = blockNo%4 + if b ~= 3 then + pos = (math.floor( blockNo / 4 ) * 12)+1 + key = akeys:sub(pos, pos + 12 ) + 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 math.fmod(block,4) then - - end + local base = ('%s%s%d%s'):format(block0, block1, blockNo, hashconstant) + local md5hash = md5.sumhexa(base) + local aestest = core.aes(md5hash, blockdata) - local base = ('%s%s%02d%s'):format(block0, block1, block, hashconstant) - local md5hash = md5.sumhexa(base) - local aestest = core.aes(md5hash, block9 ) + local _,hex = bin.unpack(("H%d"):format(16),aestest) - 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 - ) + -- local hexascii = string.gsub(hex, '(%x%x)', + -- function(value) + -- return string.char(tonumber(value, 16)) + -- end + -- ) - print( block .. ' :: ' .. md5hash .. ' :: ' .. hex .. ' :: ' .. hexascii ) + if string.find(blockdata, '^0+$') then + blocks[blockNo] = ('%02d :: %s :: %s'):format(blockNo,blockdata,blockdata) + else + --blocks[blockNo] = ('%02d :: %s :: %s :: %s '):format(blockNo,key,md5hash,hex) + blocks[blockNo] = ('%02d :: %s :: %s'):format(blockNo,blockdata,blockdata) + end - -- if core.ukbhit() then - -- print("aborted by user") - -- break - -- end + if core.ukbhit() then + print("aborted by user") + break + end + end end + + -- Print results + 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