X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/4888b2819574627efea9bd7d23444d785c5a2077..7f9e4c257f2209cf1b748b85eb85d7cf07eb86cd:/client/scripts/mifare_autopwn.lua?ds=inline diff --git a/client/scripts/mifare_autopwn.lua b/client/scripts/mifare_autopwn.lua index eb98ffbf..e68f7a75 100644 --- a/client/scripts/mifare_autopwn.lua +++ b/client/scripts/mifare_autopwn.lua @@ -8,7 +8,7 @@ author = "Martin Holst Swende" desc = [[ -This is a which automates cracking and dumping mifare classic cards. It sets itself into +This is a script which automates cracking and dumping mifare classic cards. It sets itself into 'listening'-mode, after which it cracks and dumps any mifare classic card that you place by the device. @@ -63,66 +63,6 @@ function wait_for_mifare() return nil, "Aborted by user" end -function mfcrack() - core.clearCommandBuffer() - -- Build the mifare-command - local cmd = Command:new{cmd = cmds.CMD_READER_MIFARE, arg1 = 1} - - local retry = true - while retry do - core.SendCommand(cmd:getBytes()) - local key, errormessage = mfcrack_inner() - -- Success? - if key then return key end - -- Failure? - if errormessage then return nil, errormessage end - -- Try again..set arg1 to 0 this time. - - cmd = Command:new{cmd = cmds.CMD_READER_MIFARE, arg1 = 0} - end - return nil, "Aborted by user" -end - - -function mfcrack_inner() - while not core.ukbhit() do - local result = core.WaitForResponseTimeout(cmds.CMD_ACK,1000) - if result then - -- Unpacking the three arg-parameters - local count,cmd,isOK = bin.unpack('LL',result) - - if isOK ~= 1 then return nil, "Error occurred" end - - - -- The data-part is left - -- Starts 32 bytes in, at byte 33 - local data = result:sub(33) - - -- A little helper - local get = function(num) - local x = data:sub(1,num) - data = data:sub(num+1) - return x - end - - local uid,nt,pl = get(4),get(4),get(8) - local ks,nr = get(8),get(4) - - local status, key = core.nonce2key(uid,nt, nr, pl,ks) - if not status then return status,key end - - if status > 0 then - print("Key not found (lfsr_common_prefix problem)") - -- try again - return nil,nil - else - return key - end - end - end - return nil, "Aborted by user" -end - function nested(key,sak) local typ = 1 if 0x18 == sak then --NXP MIFARE Classic 4k | Plus 4k @@ -184,8 +124,15 @@ function main(args) print("Card found, commencing crack", uid) -- Crack it local key, cnt - res,err = mfcrack() - if not res then return oops(err) end + err, res = core.mfDarkside() + if err == -1 then return oops("Button pressed. Aborted.") + elseif err == -2 then return oops("Card is not vulnerable to Darkside attack (doesn't send NACK on authentication requests).") + elseif err == -3 then return oops("Card is not vulnerable to Darkside attack (its random number generator is not predictable).") + elseif err == -4 then return oops([[ +Card is not vulnerable to Darkside attack (its random number generator seems to be based on the wellknown +generating polynomial with 16 effective bits only, but shows unexpected behaviour.]]) + elseif err == -5 then return oops("Aborted via keyboard.") + end -- The key is actually 8 bytes, so a -- 6-byte key is sent as 00XXXXXX -- This means we unpack it as first