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Per Westermark
06/04/12 13:54
Read: 433 times
Sweden


 
#187613 - Don't think so much about modification as in extraction
Responding to: Andy Peters's previous message
Andy Peters said:
What's the intent? It's not like the hacker can remotely reprogram the FPGA to have to do some evil thing (like bring down a plane or focus a laser beam on the White House).

You are thinking about changing the logic in an existing chip for use in a specific unit installed at a specific place. But if the FPGA have memory, that memory can contain encryption keys that are stored unencrypted - and extraction of these keys can allow someone to do a lot of interesting thing remotely.

The hacker needs to have access to the JTAG port in order to do anything malicious. Even if the hacker wanted to clone the device, he needs access to it.

And the JTAG port is normally available as a connector or test pads on the PCB - so someone who steals/loans such a box and opens it will have access to the JTAG port.

List of 17 messages in thread
TopicAuthorDate
have you seen this?      Richard Erlacher      05/30/12 22:31      
   Backdoor access      Oliver Sedlacek      05/31/12 05:15      
      What's the big deal?      Richard Erlacher      05/31/12 06:35      
      Crypto keys      Per Westermark      05/31/12 06:42      
         High security chips      Oliver Sedlacek      05/31/12 07:28      
            IP theft      Maarten Brock      06/01/12 07:20      
               as far as IP theft is concerned ...      Richard Erlacher      06/01/12 09:47      
   Its really      Jez Smith      06/01/12 09:22      
      Biggest problems is still processor copy-protection      Per Westermark      06/01/12 09:43      
         so Mr Evil Hacker gets his keys      Jez Smith      06/01/12 16:25      
            Mr Evil Hacker is most definitely busy      Per Westermark      06/02/12 10:33      
   Who writes that crap?      Andy Peters      06/04/12 10:32      
      Don't think so much about modification as in extraction      Per Westermark      06/04/12 13:54      
      The people who write that crap...      Jez Smith      06/04/12 15:08      
         c'mon, Jez!      Andy Peters      06/06/12 15:12      
      Never mind who writes it ....      Andy Neil      06/05/12 05:27      
         Right on!      Richard Erlacher      06/05/12 09:46      

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