local utils = require('utils')
local md5 = require('md5')
local dumplib = require('html_dumplib')
-local toyNames = require('default_toys')
+local toys = 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
+ script run tnp3dump
+ script run tnp3dump -n
+ script run tnp3dump -p
+ script run tnp3dump -k aabbccddeeff
+ script run tnp3dump -k aabbccddeeff -n
+ script run tnp3dump -o myfile
+ script run tnp3dump -n -o myfile
+ script run tnp3dump -p -o myfile
+ script run tnp3dump -k aabbccddeeff -n -o myfile
]]
author = "Iceman"
-usage = "script run tnp3dump -k <key> -n -o <filename>"
+usage = "script run tnp3dump -k <key> -n -p -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.
-h : this help
-k <key> : Sector 0 Key A.
-n : Use the nested cmd to find all keys
+ -p : Use the precalc to find all keys
-o : filename for the saved dumps
]]
-
-local HASHCONSTANT = '20436F707972696768742028432920323031302041637469766973696F6E2E20416C6C205269676874732052657365727665642E20'
-
+local RANDOM = '20436F707972696768742028432920323031302041637469766973696F6E2E20416C6C205269676874732052657365727665642E20'
local TIMEOUT = 2000 -- Shouldn't take longer than 2 seconds
local DEBUG = false -- the debug flag
local numBlocks = 64
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) )
local cmd
local err
local useNested = false
+ local usePreCalc = 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
+ for o, a in getopt.getopt(args, 'hk:npo:') do
if o == "h" then return help() end
if o == "k" then keyA = a end
if o == "n" then useNested = true end
+ if o == "p" then usePreCalc = true end
if o == "o" then outputTemplate = a end
end
-
+
-- validate input args.
keyA = keyA or '4b0b20107ccb'
if #(keyA) ~= 12 then
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))
+ print((' Found tag %s'):format(result.name))
+
+ dbg(('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)
+ local akeys = ''
+ if usePreCalc then
+ local pre = require('precalc')
+ akeys = pre.GetAll(result.uid)
+ else
+ print('Loading dumpkeys.bin')
+ local hex, err = utils.ReadDumpFile(input)
+ if not hex then
+ return oops(err)
+ end
+ akeys = hex:sub(0,12*16)
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())
local block1, err = waitCmd()
if err then return oops(err) end
+ local tmpHash = block0..block1..'%02x'..RANDOM
+
local key
local pos = 0
local blockNo
core.clearCommandBuffer()
-- main loop
- io.write('Decrypting blocks > ')
+ io.write('Reading blocks > ')
for blockNo = 0, numBlocks-1, 1 do
if core.ukbhit() then
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)
+ 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)
+ blocks[blockNo+1] = ('%02d :: %s'):format(blockNo,blockdata)
else
+ local baseStr = utils.ConvertHexToAscii(tmpHash:format(blockNo))
+ local key = md5.sumhexa(baseStr)
+ local aestest = core.aes128_decrypt(key, blockdata)
+ local hex = utils.ConvertAsciiToBytes(aestest)
+ hex = utils.ConvertBytesToHex(hex)
blocks[blockNo+1] = ('%02d :: %s'):format(blockNo,hex)
- io.write( blockNo..',')
+ io.write(blockNo..',')
end
end
else
emldata = emldata..slice..'\n'
for c in (str):gmatch('.') do
bindata[#bindata+1] = c
- end
+ end
end
+
+ print( string.rep('--',20) )
+
+ local uid = block0:sub(1,8)
+ local toytype = block1:sub(1,4)
+ local cardidLsw = block1:sub(9,16)
+ local cardidMsw = block1:sub(16,24)
+ local cardid = block1:sub(9,24)
+ local subtype = block1:sub(25,28)
-- 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))
+ local foo = dumplib.SaveAsBinary(bindata, outputTemplate..'-'..uid..'.bin')
+ print(("Wrote a BIN dump to: %s"):format(foo))
+ local bar = dumplib.SaveAsText(emldata, outputTemplate..'-'..uid..'.eml')
+ print(("Wrote a EML dump to: %s"):format(bar))
end
+
+ print( string.rep('--',20) )
+ -- Show info
- local uid = block0:sub(1,8)
- local itemtype = block1:sub(1,4)
- local cardid = block1:sub(9,24)
+ local item = toys.Find(toytype, subtype)
+ if item then
+ print((' ITEM TYPE : %s - %s (%s)'):format(item[6],item[5], item[4]) )
+ else
+ print((' ITEM TYPE : 0x%s 0x%s'):format(toytype, subtype))
+ end
- -- 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( (' UID : 0x%s'):format(uid) )
+ print( (' CARDID : 0x%s'):format(cardid ) )
print( string.rep('--',20) )
-
+
+ core.clearCommandBuffer()
end
main(args)
\ No newline at end of file
projects / proxmark3-svn / blobdiff