mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-11-04 20:50:37 -08:00
207 lines
5.4 KiB
Lua
207 lines
5.4 KiB
Lua
local bin = require('bin')
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local getopt = require('getopt')
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local lib14a = require('read14a')
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local utils = require('utils')
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local ansicolors = require('ansicolors')
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copyright = ''
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author = 'Iceman'
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version = 'v1.0.2'
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desc = [[
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This script calculates mifare keys based on uid diversification for mizip.
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Algo not found by me.
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]]
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example = [[
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-- if called without, it reads tag uid
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script run hf_mf_uidkeycalc-mizip
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--
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script run hf_mf_uidkeycalc-mizip -u 11223344
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]]
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usage = [[
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script run hf_mf_uidkeycalc-mizip -h -u <uid>
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]]
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arguments = [[
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-h : this help
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-u <UID> : UID
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]]
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local DEBUG = true
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local bxor = bit32.bxor
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local _xortable = {
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--[[ sector key A/B, 6byte xor
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--]]
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{1, '09125a2589e5', 'F12C8453D821'},
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{2, 'AB75C937922F', '73E799FE3241'},
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{3, 'E27241AF2C09', 'AA4D137656AE'},
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{4, '317AB72F4490', 'B01327272DFD'},
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}
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---
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-- A debug printout-function
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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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-- 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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---
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-- Usage help
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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(ansicolors.cyan..'Usage'..ansicolors.reset)
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print(usage)
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print(ansicolors.cyan..'Arguments'..ansicolors.reset)
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print(arguments)
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print(ansicolors.cyan..'Example usage'..ansicolors.reset)
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print(example)
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end
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--
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-- Exit message
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local function exitMsg(msg)
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print( string.rep('--',20) )
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print( string.rep('--',20) )
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print(msg)
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print()
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end
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--
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-- dumps all keys to file
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local function dumptofile(uid, keys)
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dbg('dumping keys to file')
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if utils.confirm('Do you wish to save the keys to dumpfile?') then
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local filename = ('hf-mf-%s-key.bin'):format(uid);
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local destination = utils.input('Select a filename to store to', filename)
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local file = io.open(destination, 'wb')
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if file == nil then
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print('Could not write to file ', destination)
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return
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end
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-- Mifare Mini has 5 sectors,
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local key_a = ''
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local key_b = ''
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for sector = 0, #keys do
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local keyA, keyB = table.unpack(keys[sector])
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key_a = key_a .. bin.pack('H', keyA);
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key_b = key_b .. bin.pack('H', keyB);
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end
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file:write(key_a)
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file:write(key_b)
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file:close()
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end
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end
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---
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-- key bytes to string
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local function keyStr(p1, p2, p3, p4, p5, p6)
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return string.format('%02X%02X%02X%02X%02X%02X',p1, p2, p3, p4, p5, p6)
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end
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---
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-- create key
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local function calckey(uid, xorkey, keytype)
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local p1,p2,p3,p4,p5,p6
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print("calckey()")
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if keytype == 'A' then
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p1 = bxor( uid[1], xorkey[1])
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p2 = bxor( uid[2], xorkey[2])
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p3 = bxor( uid[3], xorkey[3])
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p4 = bxor( uid[4], xorkey[4])
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p5 = bxor( uid[1], xorkey[5])
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p6 = bxor( uid[2], xorkey[6])
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else
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p1 = bxor( uid[3], xorkey[1])
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p2 = bxor( uid[4], xorkey[2])
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p3 = bxor( uid[1], xorkey[3])
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p4 = bxor( uid[2], xorkey[4])
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p5 = bxor( uid[3], xorkey[5])
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p6 = bxor( uid[4], xorkey[6])
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end
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return keyStr(p1,p2,p3,p4,p5,p6)
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end
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---
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-- print keys
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local function printKeys(keys)
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print('|---|----------------|---|----------------|---|')
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print('|sec|key A |res|key B |res|')
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print('|---|----------------|---|----------------|---|')
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for sector = 0, #keys do
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local keyA, keyB = table.unpack(keys[sector])
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print(('|%03d| %s | %s | %s | %s |'):format(sector, keyA, 1, keyB, 1))
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end
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print('|---|----------------|---|----------------|---|')
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end
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---
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-- create a full set of keys
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local function createKeys(uid)
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local uidbytes = utils.ConvertHexToBytes(uid)
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local k = {}
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k[0] = { keyStr(0xA0,0xA1,0xA2,0xA3,0xA4,0xA5), keyStr(0xB4,0xC1,0x32,0x43,0x9e,0xef) }
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for _, v in pairs(_xortable) do
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local keyA = calckey(uidbytes, utils.ConvertHexToBytes(v[2]), 'A')
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local keyB = calckey(uidbytes, utils.ConvertHexToBytes(v[3]), 'B')
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k[v[1]] = { keyA, keyB }
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end
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return k
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end
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---
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-- main
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local function main(args)
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print( string.rep('==', 30) )
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print()
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local uid = '11223344'
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local useUID = false
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-- Arguments for the script
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for o, a in getopt.getopt(args, 'hu:') do
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if o == 'h' then return help() end
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if o == 'u' then uid = a ; useUID = true end
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end
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if useUID then
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-- uid string checks
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if uid == nil then return oops('empty uid string') end
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if #uid == 0 then return oops('empty uid string') end
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if #uid ~= 8 then return oops('uid wrong length. Should be 4 hex bytes') end
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else
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-- GET TAG UID
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local tag, err = lib14a.read(false, true)
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if not tag then return oops(err) end
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core.clearCommandBuffer()
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-- simple tag check
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if 0x09 ~= tag.sak then
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if 0x4400 ~= tag.atqa then
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return oops(('[!] found tag %s :: looking for Mifare Mini 0.3k'):format(tag.name))
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end
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end
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uid = tag.uid
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end
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print('|UID|', uid)
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local keys, err = createKeys( uid )
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printKeys( keys )
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dumptofile( uid, keys )
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end
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main(args)
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