question for nozzer

[michael1]

nozzer m8 have u any idea why toxic ,when it makes the bin file for u it also includes the rom 10 bin in the file ?. as it does not use it ?


thanks

michael1

ps the 24kb one rom 10 bin .?

 

[nozzer]

Its a historical thing !

One of the previous keyroll methods used random parts of the Rom code as DES keys which were then used to decrypt parts of the keyroll.

 

[nozzer]

After a little dig through past posts here is an example of the previous keyroll.

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This decodes to

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This effectively computes the signature of a chunk of Rom10 code starting at Rom address $5E94 and then uses this signature as the DES encrypt key to change the data in the bytes dump to the real key0/key1 used for video decrypt !

So, for this type of keyroll the whole ROM10 ROM code has to be available for reference !

 

[english]

After a little dig through past posts here is an example of the previous keyroll.

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This decodes to

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This effectively computes the signature of a chunk of Rom10 code starting at Rom address $5E94 and then uses this signature as the DES encrypt key to change the data in the bytes dump to the real key0/key1 used for video decrypt !

So, for this type of keyroll the whole ROM10 ROM code has to be available for reference !

but could you say that with a rowntrees fruit pastille in your mouth ?

 

[nozzer]

but could you say that with a rowntrees fruit pastille in your mouth ?

Maybe not, but they dont interfere with my typing in the slightest

 

[michael1]

thanks nozzer for your answer , it must have been the method they where useing before the bitflop .i was just wondering ....lol.