X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/5d8f664d7abbd18bb60da2f11a2d5e8bcd29bdb6..351d6d17b3fa82a82b2205c69dcc024884d0b146:/client/scripts/mfkeys.lua diff --git a/client/scripts/mfkeys.lua b/client/scripts/mfkeys.lua index 8e54f908..e8abd0b9 100644 --- a/client/scripts/mfkeys.lua +++ b/client/scripts/mfkeys.lua @@ -1,11 +1,11 @@ --[[ This is an example of Lua-scripting within proxmark3. This is a lua-side - implementation of hf mf chk + implementation of hf mf chk This code is licensed to you under the terms of the GNU GPL, version 2 or, at your option, any later version. See the LICENSE.txt file for the text of the license. - + Copyright (C) 2013 m h swende --]] -- Loads the commands-library @@ -14,49 +14,15 @@ local cmds = require('commands') local keys = require('mf_default_keys') -- Ability to read what card is there local reader = require('read14a') +-- Asks the user for input +local utils = require('utils') -local desc = -("This script implements check keys. It utilises a large list of default keys (currently %d keys).\ +local desc = ("This script implements check keys. \ +It utilises a large list of default keys (currently %d keys).\ If you want to add more, just put them inside mf_default_keys.lua. "):format(#keys) local TIMEOUT = 10000 -- 10 seconds - ---[[This may be moved to a separate library at some point]] -local utils = -{ - --- - -- Asks the user for Yes or No - confirm = function(message, ...) - local answer - message = message .. " [y]/[n] ?" - repeat - io.write(message) - io.flush() - answer=io.read() - if answer == 'Y' or answer == "y" then - return true - elseif answer == 'N' or answer == 'n' then - return false - end - until false - end, - --- - -- Asks the user for input - input = function (message , default) - local answer - if default ~= nil then - message = message .. " (default: ".. default.. " )" - end - message = message .." \n > " - io.write(message) - io.flush() - answer=io.read() - if answer == '' then answer = default end - - return answer - end, -} local function checkCommand(command) @@ -83,7 +49,7 @@ end function checkBlock(blockNo, keys, keyType) - -- The command data is only 512 bytes, each key is 6 bytes, meaning that we can send max 85 keys in one go. + -- The command data is only 512 bytes, each key is 6 bytes, meaning that we can send max 85 keys in one go. -- If there's more, we need to split it up local start, remaining= 1, #keys local arg1 = bit32.bor(bit32.lshift(keyType, 8), blockNo) @@ -91,18 +57,18 @@ function checkBlock(blockNo, keys, keyType) while remaining > 0 do local n,data = remaining, nil if remaining > 85 then n = 85 end - local data = table.concat(keys,"",start,n) + local data = table.concat(keys, "", start, start + n - 1) --print("data",data) --print("data len", #data) print(("Testing block %d, keytype %d, with %d keys"):format(blockNo, keyType, n)) - local command = Command:new{cmd = cmds.CMD_MIFARE_CHKKEYS, - arg1 = arg1, - arg2 = 1, - arg3 = n, + local command = Command:new{cmd = cmds.CMD_MIFARE_CHKKEYS, + arg1 = arg1, + arg2 = 1, + arg3 = n, data = data} local status = checkCommand(command) if status then return status, blockNo end - start = start+n+1 + start = start + n remaining = remaining - n end return nil @@ -119,41 +85,43 @@ local function displayresults(results) for sector,_ in pairs(results) do blockNo, keyA, keyB = unpack(_) - print(("| %3d | %3d |%s|%s|"):format(sector, blockNo, keyA, keyB )) + print(("| %3d | %3d |%12s|%12s|"):format(sector, blockNo, keyA, keyB)) end print("|--------------------------------------|") end + -- A little helper to place an item first in the list local function placeFirst(akey, list) - akey = akey:lower() - if list[1] == akey then + akey = akey:lower() + if list[1] == akey then -- Already at pole position return list end local result = {akey} --print(("Putting '%s' first"):format(akey)) for i,v in ipairs(list) do - if v ~= akey then + if v ~= akey then result[#result+1] = v end end return result end + local function dumptofile(results) local sector, blockNo, keyA, keyB,_ - if utils.confirm("Do you wish to save the keys to dumpfile?") then + if utils.confirm("Do you wish to save the keys to dumpfile?") then local destination = utils.input("Select a filename to store to", "dumpkeys.bin") local file = io.open(destination, "w") - if file == nil then + if file == nil then print("Could not write to file ", destination) return end local key_a = "" local key_b = "" - + for sector,_ in pairs(results) do blockNo, keyA, keyB = unpack(_) key_a = key_a .. bin.pack("H",keyA); @@ -166,11 +134,11 @@ local function dumptofile(results) end -local function main( args) +local function main(args) print(desc); - result, err = reader.read1443a(false, true) + result, err = reader.read14443a(false, true) if not result then print(err) return @@ -181,11 +149,11 @@ local function main( args) core.clearCommandBuffer() local blockNo local keyType = 0 -- A=0, B=1 - local numSectors = 16 + local numSectors = 16 - if 0x18 == result.sak then --NXP MIFARE Classic 4k | Plus 4k - -- IFARE Classic 4K offers 4096 bytes split into forty sectors, - -- of which 32 are same size as in the 1K with eight more that are quadruple size sectors. + if 0x18 == result.sak then -- NXP MIFARE Classic 4k | Plus 4k + -- IFARE Classic 4K offers 4096 bytes split into forty sectors, + -- of which 32 are same size as in the 1K with eight more that are quadruple size sectors. numSectors = 40 elseif 0x08 == result.sak then -- NXP MIFARE CLASSIC 1k | Plus 2k -- 1K offers 1024 bytes of data storage, split into 16 sector @@ -193,7 +161,7 @@ local function main( args) elseif 0x09 == result.sak then -- NXP MIFARE Mini 0.3k -- MIFARE Classic mini offers 320 bytes split into five sectors. numSectors = 5 - elseif 0x10 == result.sak then-- "NXP MIFARE Plus 2k" + elseif 0x10 == result.sak then -- NXP MIFARE Plus 2k numSectors = 32 else print("I don't know how many sectors there are on this type of card, defaulting to 16") @@ -203,25 +171,25 @@ local function main( args) for sector=1,numSectors,1 do --[[ - The mifare Classic 1k card has 16 sectors of 4 data blocks each. + The mifare Classic 1k card has 16 sectors of 4 data blocks each. The first 32 sectors of a mifare Classic 4k card consists of 4 data blocks and the remaining - 8 sectors consist of 16 data blocks. + 8 sectors consist of 16 data blocks. --]] - local blockNo = sector * 4 -1 - + local blockNo = sector * 4 - 1 + if sector > 32 then - blockNo = 32*4+ (sector-32)*16 -1 + blockNo = 32*4 + (sector-32)*16 - 1 end local keyA = checkBlock(blockNo, keys, 0) - if keyA then keys = placeFirst(keyA, keys) end + if keyA then keys = placeFirst(keyA, keys) end keyA = keyA or "" local keyB = checkBlock(blockNo, keys, 1) - if keyB then keys = placeFirst(keyB, keys) end + if keyB then keys = placeFirst(keyB, keys) end keyB = keyB or "" - result[sector] = {blockNo, keyA, keyB } + result[sector] = {blockNo, keyA, keyB} -- Check if user aborted if core.ukbhit() then @@ -233,5 +201,4 @@ local function main( args) dumptofile(result) end -main( args) - +main(args)