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https://github.com/RfidResearchGroup/proxmark3.git
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Moving mfc_gen3_writer.lua to a branch till it becomes useable
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Winds
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390
client/luascripts/mfc_gen3_writer.lua
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390
client/luascripts/mfc_gen3_writer.lua
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@ -0,0 +1,390 @@
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local utils = require('utils')
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local getopt = require('getopt')
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local cmds = require('commands')
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local read14a = require('read14a')
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--
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---
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-------------------------------
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-- Notes
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-------------------------------
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---
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--
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--[[
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---Suggestions of improvement:
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--- Add support another types of dumps: BIN, JSON
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--- Maybe it will be not only as `mfc_gen3_writer`, like a universal dump manager.
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--- Add undependence from the operation system. At the moment code not working in Linux.
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--- Add more chinesse backdoors RAW commands for UID changing (find RAW for the 4 byte familiar chinese card, from native it soft: http://bit.ly/39VIDsU)
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--- Hide system messages when you writing a dumps, replace it to some of like [#####----------] 40%
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-- iceman notes:
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-- doesn't take consideration filepaths for dump files.
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-- doesn't allow A keys for authenticating when writing
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-- doesn't verify that card is magic gen3.
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-- doesn't take several versions of same dump ( -1, -2, -3 ) styles.
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--]]
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--
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---
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-------------------------------
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-- Script hat
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-------------------------------
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---
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--
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copyright = ''
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author = 'Winds'
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version = 'v1.0.0'
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desc = [[
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The script gives you a easy way to write your *.eml dumps onto normal MFC and magic Gen3 cards.
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Works with both 4 and 7 bytes NXP MIFARE Classic 1K cards.
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The script also has the possibility to change UID and permanent lock uid on magic Gen3 cards.
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It supports the following functionality.
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1. Write it to the same of current card UID.
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2. Write it to magic Gen3 card.
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3. Change uid to match dump on magic Gen3 card.
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4. Permanent lock UID on magic Gen3 card.
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5. Erase all data at the card and set the FF FF FF FF FF FF keys, and Access Conditions to 78778800.
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Script works in a wizard styled way.
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]]
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example = [[
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1. script run mfc_gen3_writer
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]]
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usage = [[
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Select your *.eml dump from list to write to the card.
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]]
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--
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---
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-------------------------------
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-- Global variables
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-------------------------------
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---
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--
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local DEBUG = false -- the debug flag
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local files = {} -- Array for eml files
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local b_keys = {} -- Array for B keys
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local eml = {} -- Array for data in block 32
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local num_dumps = 0 -- num of found eml dump files
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local tab = string.rep('-', 64)
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local empty = string.rep('0', 32) -- Writing blocks
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local default_key = 'FFFFFFFFFFFF' -- Writing blocks
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local default_key_type = '01' --KeyA: 00, KeyB: 01
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local default_key_blk = 'FFFFFFFFFFFF78778800FFFFFFFFFFFF' -- Writing blocks
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local piswords_uid_lock = 'hf 14a raw -s -c -t 2000 90fd111100'
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local piswords_uid_change = 'hf 14a raw -s -c -t 2000 90f0cccc10'
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local cmd_wrbl = 'hf mf wrbl %d B %s %s' -- Writing blocks
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--
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---
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-------------------------------
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-- A debug printout-function
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-------------------------------
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---
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--
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local function dbg(args)
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if not DEBUG then return end
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if type(args) == 'table' then
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local i = 1
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while args[i] do
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dbg(args[i])
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i = i+1
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end
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else
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print('###', args)
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end
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end
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--
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---
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-------------------------------
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-- This is only meant to be used when errors occur
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-------------------------------
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---
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--
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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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--
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---
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-------------------------------
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-- Usage help
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-------------------------------
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---
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--
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local function help()
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print(copyright)
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print(author)
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print(version)
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print(desc)
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print('Example usage')
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print(example)
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print(usage)
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end
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--
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---
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-------------------------------
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-- GetUID
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-------------------------------
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---
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--
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local function GetUID()
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return read14a.read(true, true).uid
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end
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--
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local function dropfield()
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read14a.disconnect()
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core.clearCommandBuffer()
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end
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--
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---
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-------------------------------
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-- Wait for tag (MFC)
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-------------------------------
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---
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--
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local function wait()
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read14a.waitFor14443a()
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end
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--
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---
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-------------------------------
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-- Return key code 00/01 to string
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-------------------------------
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---
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--
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local function KeyAB()
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if default_key_type == '00' then
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return 'KeyA'
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else
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return 'KeyB'
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end
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end
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--
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---
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-------------------------------
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-- Check response from Proxmark
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-------------------------------
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---
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--
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local function getblockdata(response)
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if response.Status == 0 then
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return true
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else
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return false
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end
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end
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--
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---
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-------------------------------
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-- Check 0xFFFFFFFFFFFF key for tag (MFC)
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-------------------------------
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---
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--
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local function checkkey()
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local status = 0
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for i = 1, #eml do
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cmd = Command:newNG{cmd = cmds.CMD_HF_MIFARE_READBL, data = ('%02x%02x%s'):format((i-1), default_key_type, default_key)}
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if (getblockdata(cmd:sendNG(false)) == true) then
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status = status + 1
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print(('%s %02s %s %s %s'):format(' ', (i-1), KeyAB(), default_key, 'OK'))
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else
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break
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end
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end
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if status == #eml then
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return true
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end
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end
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--
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---
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-------------------------------
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-- Check Pissword backdor
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-------------------------------
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---
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--
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local function checkmagic()
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--Have no RAW ISO14443A command in appmain.c
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cmd = Command:newNG{cmd = cmds.CMD_HF_ISO14443A_READER, data = piswords_uid_change .. GetUID()} -- sample check to pull the same UID to card and check response
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if (getblockdata(cmd:sendNG(false)) == true) then
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print('Magic')
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else
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print('Not magic')
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end
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end
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--
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---
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-------------------------------
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-- Main function
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-------------------------------
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---
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--
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local function main(args)
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--
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---
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-------------------------------
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-- Arguments for script
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-------------------------------
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---
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--
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for o, a in getopt.getopt(args, 'hd') do
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if o == 'h' then return help() end
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if o == 'd' then DEBUG = true end
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end
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--
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wait()
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print(tab)
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--
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---
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-------------------------------
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-- Detect 7/4 byte card
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-------------------------------
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---
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--
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if string.len(GetUID()) == 14 then
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eml_file_uid_start = 18 -- For windows with '---------- ' prefix
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eml_file_uid_end = 31
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eml_file_lengt = 40
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else
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eml_file_uid_start = 18 -- For windows with '---------- ' prefix
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eml_file_uid_end = 25
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eml_file_lengt = 34
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end
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dropfield()
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--
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---
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-------------------------------
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-- List all EML files in /client
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-------------------------------
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---
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--
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local dumpEML = 'find "." "*dump.eml"' -- Fixed for windows
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local p = assert(io.popen(dumpEML))
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for _ in p:lines() do
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-- The length of eml file
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if string.len(_) == eml_file_lengt then
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num_dumps = num_dumps + 1
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-- cut UID from eml file
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files[num_dumps] = string.sub(_, eml_file_uid_start, eml_file_uid_end) -- cut numeretic UID
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print(' '..num_dumps..' | '..files[num_dumps])
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end
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end
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--
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p.close()
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--
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if num_dumps == 0 then return oops("Didn't find any dump files") end
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--
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print(tab)
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print(' Your card has UID '..GetUID())
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print('')
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print(' Select which dump to write (1 until '..num_dumps..')')
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print(tab)
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io.write(' --> ')
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--
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local uid_no = tonumber(io.read())
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print(tab)
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print(' You have been selected card dump No ' .. uid_no .. ', with UID: ' .. files[uid_no] .. '. Your card UID: ' .. GetUID())
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--
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--
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---
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-------------------------------
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-- Load eml file
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-------------------------------
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---
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--
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local dumpfile = assert(io.open('./hf-mf-' .. files[uid_no] .. '-dump.eml', 'r'))
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for _ in dumpfile:lines() do table.insert(eml, _); end
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dumpfile.close()
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--
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---
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-------------------------------
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-- Extract B key from EML file
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-------------------------------
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---
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--
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local b = 0
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for i = 1, #eml do
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if (i % 4 == 0) then
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repeat
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b = b + 1
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-- Cut key from block
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b_keys[b] = string.sub(eml[i], (#eml[i] - 11), #eml[i])
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until b % 4 == 0
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end
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end
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print(tab)
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dbg(b_keys)
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dbg(eml)
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--
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---
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-------------------------------
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-- Change UID on certain version of magic Gen3 card.
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-------------------------------
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---
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--
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if (utils.confirm(' Change UID ?') == true) then
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wait()
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core.console(piswords_uid_change .. tostring(eml[1]))
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print(tab)
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print(' The new card UID : ' .. GetUID())
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end
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print(tab)
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--checkmagic()
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--
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---
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-------------------------------
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-- Lock UID
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-------------------------------
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---
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--
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if (utils.confirm(' Permanent lock UID ? (card can never change uid again) ') == true) then
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wait()
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core.console(piswords_uid_lock)
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end
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--
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print(tab)
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print(' Going to check the all ' .. KeyAB() .. ' by ' .. default_key)
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print(tab)
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--
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if checkkey() == true then
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print(tab)
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if (utils.confirm(' Card is Empty. Write selected dump to card ?') == true) then
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for i = 1, #eml do
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core.console(string.format(cmd_wrbl, (i-1), default_key, eml[i]))
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end
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end
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else
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print(tab)
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if (utils.confirm(' Delete ALL data and write all keys to 0x' .. default_key .. ' ?') == true) then
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wait()
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for i = 1, #eml do
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if (i % 4 == 0) then
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core.console(string.format(cmd_wrbl, (i-1), b_keys[i], default_key_blk))
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else
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core.console(string.format(cmd_wrbl, (i-1), b_keys[i], empty))
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end
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end
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else
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print(tab)
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if (utils.confirm(' Write selected dump to card ?') == true) then
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print(tab)
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wait()
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for i = 1, #eml do
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core.console(string.format(cmd_wrbl, (i-1), b_keys[i], eml[i]))
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end
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end
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end
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end
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dropfield()
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print(tab)
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print('You are welcome')
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end
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--
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---
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-------------------------------
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-- Start Main function
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-------------------------------
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---
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--
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main(args)
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