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CHG: added key gen algo. removed inparameter.

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iceman1001 2017-04-29 01:08:19 +02:00
commit e093a375ef
1 changed files with 24 additions and 12 deletions
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36
client/scripts/didump.lua
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@ -5,17 +5,16 @@ local lib14a = require('read14a')
example =[[ example =[[
script run didump script run didump
script run didump -k aabbccddeeff script run didump -t
]] ]]
author = "Iceman" author = "Iceman"
usage = "script run didump -k <key> " usage = "script run didump -h -t"
desc = [[ desc = [[
This is a script to dump and decrypt the data of a specific type of Mifare Mini token. This is a script to dump and decrypt the data of a specific type of Mifare Mini token.
Arguments: Arguments:
-h : this help -h : this help
-t : selftest -t : selftest
-k <key> : Mifare Key A.
]] ]]
local band=bit32.band local band=bit32.band
@ -27,6 +26,7 @@ local rshift=bit32.rshift
local FOO = 'AF62D2EC0491968CC52A1A7165F865FE' local FOO = 'AF62D2EC0491968CC52A1A7165F865FE'
local BAR = '286329204469736E65792032303133' local BAR = '286329204469736E65792032303133'
local MIS = '0A14FD0507FF4BCD026BA83F0A3B89A9'
local RANDOM = FOO..BAR local RANDOM = FOO..BAR
local outputTemplate = os.date("toydump_%Y-%m-%d_%H%M%S"); local outputTemplate = os.date("toydump_%Y-%m-%d_%H%M%S");
local TIMEOUT = 2000 local TIMEOUT = 2000
@ -362,6 +362,19 @@ local function waitCmd()
return nil, "No response from device" return nil, "No response from device"
end end
local function keygen(uid)
local data = MIS..uid..BAR
local hash = utils.ConvertAsciiToBytes(utils.Sha1Hex(data))
return string.format("%02X%02X%02X%02X%02X%02X",
hash[3+1],
hash[2+1],
hash[1+1],
hash[0+1],
hash[7+1],
hash[6+1]
)
end
local function selftest() local function selftest()
local testdata = '000F42430D0A14000001D11F'..'5D738517' local testdata = '000F42430D0A14000001D11F'..'5D738517'
local chksum = getChecksum(testdata) local chksum = getChecksum(testdata)
@ -381,6 +394,10 @@ local function selftest()
print ('DATA :: '..testdata:sub(1,24)) print ('DATA :: '..testdata:sub(1,24))
print (('VALID CHKSUM :: %s'):format(validStr )) print (('VALID CHKSUM :: %s'):format(validStr ))
print (('UPDATE CHKSUM :: %s'):format(revalidated)) print (('UPDATE CHKSUM :: %s'):format(revalidated))
local testkey = keygen('0456263a873a80')
print ('TEST KEY :: '..testkey)
print ('VALID KEY :: 29564af75805')
end end
--- ---
-- The main entry point -- The main entry point
@ -394,18 +411,11 @@ function main(args)
local magic = '' local magic = ''
-- Read the parameters -- Read the parameters
for o, a in getopt.getopt(args, 'hk:t') do for o, a in getopt.getopt(args, 'ht') do
if o == "h" then help() return end if o == "h" then help() return end
if o == "k" then keyA = a end
if o == "t" then return selftest() end if o == "t" then return selftest() end
end end
-- validate input args.
keyA = keyA or '6dd747e86975'
if #(keyA) ~= 12 then
return oops( string.format('Wrong length of write key (was %d) expected 12', #keyA))
end
-- Turn off Debug -- Turn off Debug
local cmdSetDbgOff = "hf mf dbg 0" local cmdSetDbgOff = "hf mf dbg 0"
core.console( cmdSetDbgOff) core.console( cmdSetDbgOff)
@ -418,6 +428,8 @@ function main(args)
end end
core.clearCommandBuffer() core.clearCommandBuffer()
local keyA = keygen(result.uid)
-- Show tag info -- Show tag info
print((' Found tag %s'):format(result.name)) print((' Found tag %s'):format(result.name))