local utils = require('utils')
local md5 = require('md5')
local dumplib = require('html_dumplib')
-local toyNames = require('default_toys')
-
+local toys = require('default_toys')
example =[[
script run tnp3dump
-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
---
-- A debug printout-function
function dbg(args)
- if not DEBUG then
- return
- end
+ if not DEBUG then return end
if type(args) == "table" then
local i = 1
-- This is only meant to be used when errors occur
function oops(err)
print("ERROR: ",err)
+ return nil,err
end
---
-- Usage help
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) )
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))
local block0, err = waitCmd()
if err then return oops(err) end
+ core.clearCommandBuffer()
+
-- Read block 1
cmd = Command:new{cmd = cmds.CMD_MIFARE_READBL, arg1 = 1,arg2 = 0,arg3 = 0, data = keyA}
err = core.SendCommand(cmd:getBytes())
local block1, err = waitCmd()
if err then return oops(err) end
+ core.clearCommandBuffer()
+
+ local tmpHash = block0..block1..'%02x'..RANDOM
+
local key
local pos = 0
local blockNo
local blocks = {}
-
- print('Reading card data')
- core.clearCommandBuffer()
-
+
-- main loop
io.write('Reading blocks > ')
for blockNo = 0, numBlocks-1, 1 do
break
end
+ core.clearCommandBuffer()
+
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 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 = ConvertAsciiToHex(aestest)
+
blocks[blockNo+1] = ('%02d :: %s'):format(blockNo,hex)
- io.write( blockNo..',')
+ io.write(blockNo..',')
end
end
else
for _,s in pairs(blocks) do
local slice = s:sub(8,#s)
- local str = utils.ConvertBytesToAscii(
- utils.ConvertHexToBytes(slice)
- )
+ local str = utils.ConvertHexToAscii(slice)
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 itemtype = block1:sub(1,4)
+ 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 traptype = block1:sub(25,28)
+ local subtype = block1:sub(25,28)
-- Write dump to files
if not DEBUG then
- local foo = dumplib.SaveAsBinary(bindata, outputTemplate..'_uid_'..uid..'.bin')
+ local foo = dumplib.SaveAsBinary(bindata, outputTemplate..'-'..uid..'.bin')
print(("Wrote a BIN dump to: %s"):format(foo))
- local bar = dumplib.SaveAsText(emldata, outputTemplate..'_uid_'..uid..'.eml')
+ 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 itemtypename = toyNames[itemtype]
- if itemtypename == nil then
- itemtypename = toyNames[utils.SwapEndiannessStr(itemtype,16)]
+ 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, itemtypename) )
- print( (' Alter ego / traptype : 0x%s'):format(traptype) )
+
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