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supported_packets [2008/08/06 18:27] – created darkaudaxsupported_packets [2008/08/06 20:20] – darkaudax
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 ====== Tutorial: Packets Supported for the PTW Attack ====== ====== Tutorial: Packets Supported for the PTW Attack ======
-Version: 1.00 August 6, 2008\\+Version: 1.01 August 6, 2008\\
 By: darkAudax By: darkAudax
  
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 For PTW we need "key length plus 3 bytes" keystream length.  As an example: A 40 bit WEP key is 5 bytes long.  So we need "5 bytes plus 3 bytes", thus 8 keystream bytes.  Keystream bytes are bytes that we know the unencrypted value. For PTW we need "key length plus 3 bytes" keystream length.  As an example: A 40 bit WEP key is 5 bytes long.  So we need "5 bytes plus 3 bytes", thus 8 keystream bytes.  Keystream bytes are bytes that we know the unencrypted value.
  
-For ARP packets, we know 22 keystream bytes.  That is why ARP packets can be used to crack any length of WEP key.+For ARP packets, we know 22 keystream bytes.  ARPs can be used for 40 and 104 bit WEP cracking.
  
 For IP packets, we know 9 bytes for sure so 40 bit WEP is no problem.  For 104 bit WEP, there are 2 bytes which are completely unknown.  These are bruteforced.  And one final byte is guessed since there are only three possibilities. For IP packets, we know 9 bytes for sure so 40 bit WEP is no problem.  For 104 bit WEP, there are 2 bytes which are completely unknown.  These are bruteforced.  And one final byte is guessed since there are only three possibilities.
 +
 +
 +===== Handy URLs =====
 +
 +  * [[http://www.cavebear.com/archive/cavebear/Ethernet/multicast.html|Multicast Addresses]]
 +  * [[http://www.iana.org/assignments/ethernet-numbers|Ether Types]]
  
supported_packets.txt · Last modified: 2010/11/20 23:18 by sleek