mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-11-11 10:14:34 +08:00
277 lines
8.7 KiB
Lua
277 lines
8.7 KiB
Lua
---
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-- This Lua script is designed to run with Iceman/RRG Proxmark3 fork
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-- Just copy luxeodump.lua to client/luascripts/
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-- and run "script run luxeodump"
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-- requirements
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local cmds = require('commands')
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local getopt = require('getopt')
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local utils = require('utils')
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local lib14a = require('read14a')
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local ansicolors = require('ansicolors')
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copyright = ''
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author = '0xdrrb'
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version = 'v0.1.0'
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desc = [[
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This is a script to dump and decrypt the data of a specific type of Mifare laundromat token.
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]]
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example = [[
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script run luxeodump
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]]
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usage = [[
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script run luxeodump
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]]
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local PM3_SUCCESS = 0
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-- Some shortcuts
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local band = bit32.band
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local bor = bit32.bor
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local bnot = bit32.bnot
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local bxor = bit32.bxor
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local lsh = bit32.lshift
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local rsh = bit32.rshift
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local acgreen = ansicolors.bright..ansicolors.green
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local accyan = ansicolors.bright..ansicolors.cyan
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local acred = ansicolors.red
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local acyellow = ansicolors.bright..ansicolors.yellow
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local acblue = ansicolors.bright..ansicolors.blue
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local acmagenta = ansicolors.bright..ansicolors.magenta
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local acoff = ansicolors.reset
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-- This is only meant to be used when errors occur
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local function oops(err)
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print('ERROR: ', err)
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core.clearCommandBuffer()
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return nil, err
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end
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local function setdevicedebug( status )
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local c = 'hw dbg '
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if status then
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c = c..'1'
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else
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c = c..'0'
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end
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core.console(c)
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end
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local function xteaCrypt(num_rounds, v, key)
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local v0 = v[0]
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local v1 = v[1]
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local delta = 0x9E3779B9
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local sum = 0
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for i = 0, num_rounds-1 do
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-- v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + key[sum & 3]);
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v0 = band(bxor(bxor(lsh(v1,4), rsh(v1,5)) + v1, sum + key[band(sum,3)]) + v0, 0xFFFFFFFF)
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sum = band(sum + delta, 0xFFFFFFFF)
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-- v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + key[(sum>>11) & 3]);
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v1 = band(bxor(bxor(lsh(v0,4), rsh(v0,5)) + v0, sum + key[band(rsh(sum,11),3)]) + v1, 0xFFFFFFFF)
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end
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v[0]=v0
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v[1]=v1
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end
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local function xteaDecrypt(num_rounds, v, key)
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local v0 = v[0]
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local v1 = v[1]
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local delta = 0x9E3779B9
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local sum = band(delta * num_rounds, 0xFFFFFFFF)
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for i = 0, num_rounds-1 do
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-- v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + key[(sum>>11) & 3]);
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v1 = band(v1 - bxor(bxor(lsh(v0,4), rsh(v0,5)) + v0, sum + key[band(rsh(sum,11),3)]), 0xFFFFFFFF)
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sum = band(sum - delta, 0xFFFFFFFF)
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-- v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + key[sum & 3]);
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v0 = band(v0 - bxor(bxor(lsh(v1,4), rsh(v1,5)) + v1, sum + key[band(sum,3)]), 0xFFFFFFFF)
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end
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v[0]=v0
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v[1]=v1
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end
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local function createxteakey(mfuid)
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local xteakey = {}
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local buid = {}
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local tmpkey = {}
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local uid = {}
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-- Warning ! "it is customary in Lua to START ARRAYS WITH ONE"
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buid = utils.ConvertHexToBytes(mfuid)
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uid[0] = bor(buid[1], lsh(buid[2], 8))
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uid[1] = bor(buid[3], lsh(buid[4], 8))
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tmpkey[0] = 0x198B
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tmpkey[1] = uid[0]
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tmpkey[2] = 0x46D8
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tmpkey[3] = uid[1]
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tmpkey[4] = 0x5310
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tmpkey[5] = bxor(uid[0], 0xA312)
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tmpkey[6] = 0xFFCB
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tmpkey[7] = bxor(uid[1], 0x55AA)
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xteakey[0] = bor(lsh(tmpkey[1], 16), tmpkey[0])
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xteakey[1] = bor(lsh(tmpkey[3], 16), tmpkey[2])
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xteakey[2] = bor(lsh(tmpkey[5], 16), tmpkey[4])
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xteakey[3] = bor(lsh(tmpkey[7], 16), tmpkey[6])
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return xteakey
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end
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local function getblockdata(response)
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if not response then
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return nil, 'No response from device'
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end
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if response.Status == PM3_SUCCESS then
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return response.Data
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else
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return nil, "Couldn't read block.. ["..response.Status.."]"
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end
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end
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local function readblock(blockno, key)
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-- Read block N
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local keytype = '01' -- key B
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local data = ('%02x%s%s'):format(blockno, keytype, key)
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local c = Command:newNG{cmd = cmds.CMD_HF_MIFARE_READBL, data = data}
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local b, err = getblockdata(c:sendNG(false))
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if not b then return oops(err) end
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return b
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end
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local function readtag(mfkey,xteakey)
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local tagdata = {}
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local cleardata = {}
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local v = {}
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local vv = {}
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-- Read 4 sectors and build table
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for sect = 8, 11 do
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for blockn = sect*4, (sect*4)+2 do
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local blockdata = readblock(blockn, mfkey)
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if not blockdata then return oops('[!] failed reading block') end
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table.insert(tagdata, blockdata)
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end
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end
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-- Decrypt data and build clear table
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for key,value in ipairs(tagdata) do
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local clearblockdata
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v[0]=utils.SwapEndianness(value:sub(1,8),32)
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v[1]=utils.SwapEndianness(value:sub(9,16),32)
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xteaDecrypt(16, v, xteakey)
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vv[0]=utils.SwapEndianness(value:sub(17,24),32)
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vv[1]=utils.SwapEndianness(value:sub(25,32),32)
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xteaDecrypt(16, vv, xteakey)
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clearblockdata=string.format("%08X%08X%08X%08X",
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utils.SwapEndianness(string.format("%08X", v[0]),32),
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utils.SwapEndianness(string.format("%08X", v[1]),32),
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utils.SwapEndianness(string.format("%08X", vv[0]),32),
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utils.SwapEndianness(string.format("%08X", vv[1]),32))
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table.insert(cleardata, clearblockdata)
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end
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return tagdata,cleardata
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end
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local function main(args)
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local xteakey = {}
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-- local v = {}
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local edata = {}
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local cdata = {}
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-- Turn off Debug
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setdevicedebug(false)
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-- GET TAG UID
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tag, err = lib14a.read(false, true)
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if err then
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lib14a.disconnect()
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return oops(err)
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end
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core.clearCommandBuffer()
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-- simple tag check
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if 0x08 ~= tag.sak then
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if 0x0400 ~= tag.atqa then
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return oops(('[fail] found tag %s :: looking for Mifare S50 1k'):format(tag.name))
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end
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end
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xteakey = createxteakey(tag.uid)
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print(acblue.."UID: "..tag.uid..acoff)
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print(acblue..string.format("XTEA key: %08X %08X %08X %08X", xteakey[0], xteakey[1], xteakey[2], xteakey[3])..acoff)
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edata, cdata = readtag("415A54454B4D",xteakey)
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if edata == nil or cdata == nil then
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print("ERROR Reading tag!")
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return nil
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end
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print("Ciphered data:")
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for key,value in ipairs(edata) do
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print(value)
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if key % 3 == 0 then print("") end
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end
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-- compute CRC for each segment
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crcH = utils.SwapEndianness(core.reveng_runmodel("CRC-16/ARC", cdata[1]..cdata[2]..cdata[3]:sub(1,28), false, '0'),16)
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crcA = utils.SwapEndianness(core.reveng_runmodel("CRC-16/ARC", cdata[4]..cdata[5]..cdata[6]..cdata[7]:sub(1,28), false, '0'),16)
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crcB = utils.SwapEndianness(core.reveng_runmodel("CRC-16/ARC", cdata[8]..cdata[9]..cdata[10]..cdata[11]:sub(1,28), false, '0'),16)
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print("\nHeader:")
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for key,value in ipairs(cdata) do
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if key == 3 then
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print(value:sub(1,28)..acmagenta..value:sub(29,32)..acoff)
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if utils.SwapEndianness(value:sub(29,32),16) == crcH then strcrc = " OK" else strcrc = acred.." CRCERROR !!" end
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print(acmagenta.."CRC16/ARC = "..string.format("0x%04X", crcH)..strcrc..acoff)
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print("\nDataA:")
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elseif key == 4 then
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print(acgreen..value:sub(1,4)..acoff..value:sub(5,16)..accyan..value:sub(17,24)..acoff..value:sub(25,26)..accyan..value:sub(27,28)..acoff..value:sub(29,32))
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versionA = utils.SwapEndianness(value:sub(1,4),16)
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dateA = string.format("%d/%02d/%02d %02d:%02d", tonumber(value:sub(17,18),10)+2000, tonumber(value:sub(19,20),10),
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tonumber(string.format("%02X", band(tonumber(value:sub(21,22),16),0x3f)),10),
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tonumber(value:sub(23,24),10), tonumber(value:sub(27,28),10))
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elseif key == 8 then
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print(acgreen..value:sub(1,4)..acoff..value:sub(5,16)..accyan..value:sub(17,24)..acoff..value:sub(25,26)..accyan..value:sub(27,28)..acoff..value:sub(29,32))
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versionB = utils.SwapEndianness(value:sub(1,4),16)
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dateB = string.format("%d/%02d/%02d %02d:%02d", tonumber(value:sub(17,18),10)+2000, tonumber(value:sub(19,20),10),
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tonumber(string.format("%02X", band(tonumber(value:sub(21,22),16),0x3f)),10),
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tonumber(value:sub(23,24),10), tonumber(value:sub(27,28),10))
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elseif key == 5 then
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print(acyellow..value:sub(1,4)..acoff..value:sub(5,32))
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creditA = utils.SwapEndianness(value:sub(1,4),16)/100
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elseif key == 9 then
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print(acyellow..value:sub(1,4)..acoff..value:sub(5,32))
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creditB = utils.SwapEndianness(value:sub(1,4),16)/100
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elseif key == 7 then
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print(value:sub(1,28)..acmagenta..value:sub(29,32)..acoff)
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print(acgreen.."Version "..string.format("0x%04X", versionA)..acoff)
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print(acyellow.."Credit : "..creditA..acoff)
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if utils.SwapEndianness(value:sub(29,32),16) == crcA then strcrc = " OK" else strcrc = acred.." CRCERROR !!" end
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print(acmagenta.."CRC16/ARC = "..string.format("0x%04X", crcA)..strcrc..acoff)
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print(accyan.."Date: "..dateA..acoff)
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print("\nDataB:")
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elseif key == 11 then
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print(value:sub(1,28)..acmagenta..value:sub(29,32)..acoff)
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print(acgreen.."Version "..string.format("0x%04X", versionB)..acoff)
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print(acyellow.."Credit : "..creditB..acoff)
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if utils.SwapEndianness(value:sub(29,32),16) == crcB then strcrc = " OK" else strcrc = acred.." CRCERROR !!" end
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print(acmagenta.."CRC16/ARC = "..string.format("0x%04X", crcB)..strcrc..acoff)
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print(accyan.."Date: "..dateB..acoff)
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print("\nFooter:")
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else
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print(value)
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end
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end
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return
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end
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main(args)
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