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???
05/06/05 13:22
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#93056 - what i want, Dan
Responding to: ???'s previous message
Hi dan,
I need to convert a Hex file to scrambled format and at the mcu back to the real data to be placed on the right adress inside the flash. I does not need to be Intel hex format. One can also implement such a protcol which does:
1- convert it back to hex format, but the adress and data scrambled
2-once inside the mcu, the mcu's encryption algorithm converts it back to the original data and the correct adresses and then it should work as normal.

No that i can implement TEA encryption in the 8051, i am going to work on a program which can communicate with 8051 mcu and which implements the protocol for flashing the mcu.

Best regards,

Khaled

List of 46 messages in thread
TopicAuthorDate
ISP-AES(or other tiny encryption)for LPC            01/01/70 00:00      
   so it works?            01/01/70 00:00      
      re so it works?            01/01/70 00:00      
         could it be            01/01/70 00:00      
   TEA            01/01/70 00:00      
      re could it be?            01/01/70 00:00      
         double-xor            01/01/70 00:00      
            LPC935            01/01/70 00:00      
      TEA            01/01/70 00:00      
         Tea time!            01/01/70 00:00      
            TEA time ;)            01/01/70 00:00      
            More tea            01/01/70 00:00      
         Please clarify requirements            01/01/70 00:00      
            what i want, Dan            01/01/70 00:00      
               Looks like you are set then            01/01/70 00:00      
                  to Dan            01/01/70 00:00      
                     Re: to Dan            01/01/70 00:00      
                        Mode of operation            01/01/70 00:00      
                        I underdstand now., thanks            01/01/70 00:00      
   better done in hardware            01/01/70 00:00      
      what about this?            01/01/70 00:00      
         what are you making            01/01/70 00:00      
            theft has to be prevented            01/01/70 00:00      
               either or            01/01/70 00:00      
                  FM is just a "vehicle"...            01/01/70 00:00      
                     but a diesel            01/01/70 00:00      
                        it's easy            01/01/70 00:00      
                           again, why            01/01/70 00:00      
                              unsecure?            01/01/70 00:00      
                                 yes            01/01/70 00:00      
                                    Individual sector security bits removal            01/01/70 00:00      
                           lockbits            01/01/70 00:00      
                              Now i understand!            01/01/70 00:00      
                                 same thing            01/01/70 00:00      
                                    what am i making?            01/01/70 00:00      
                                       be careful            01/01/70 00:00      
                                          why GSM?            01/01/70 00:00      
                                 FM            01/01/70 00:00      
                                    FM            01/01/70 00:00      
   for the xor method to work            01/01/70 00:00      
      RC4            01/01/70 00:00      
         RC4            01/01/70 00:00      
   A reminder            01/01/70 00:00      
      encryption            01/01/70 00:00      
   pgpi.org            01/01/70 00:00      
      ok thanks jez            01/01/70 00:00      

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