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Main - ROM Hacking - Potential D411 SNES CIC lock-out chip crack | New thread | New reply |
jargon |
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Ninji Banned until 2010-10-15 for an utterly psychedelic posting style Level: 36 Posts: 186/247 EXP: 299540 Next: 8570 Since: 12-10-07 From: 480/85260 Last post: 4921 days Last view: 4579 days |
Potential D411 SNES CIC lock-out chip crack:
http://retromachineshop.com/dl/consoledev/ Only reason I am taking the time to crack this is: I was promised lots of free SNES carts. First off, "./readme.txt":
Next, "D411_ROM.txt":
Now, disclaimer: This is 100% untested. This is just an intuitive wild guess that I pulled out of my ass. This is the only surefire way to encrypt data without using seeds. (There doesn't seem to be any seeds in the D411 CIC chip.) This "d411crack.exe" simply only does the raw ROM directly and back. I have no idea what the bit alignment is (I used zero bit offset per every bit), what the "addressing bswap" bit-depth is (I used 12bit to fit the entire ROM at once.) And I have no idea what direction each bank counts the clock cycles and whether each clock is 128bit for a full bank or not. (I assume there are thirty-two 128bit clocks, with the ROM giving starting values in each bank.) I have no idea if the addressing values are cycled by a clock, nor if the addressing values are mutated further somehow. Nor do I have any clue at all whether how multiple bits per input/output are used. ..I am flying by the seat of my ass, and not a damn person seems to be willing to help me learn how to mod a Super Nintendo in-order to sample the D411 SNES CIC lock-out chip input/output/clock traffic myself. The floor is now open for discussion. ____________________ NIHYFDTTMWTMR |
jargon |
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Ninji Banned until 2010-10-15 for an utterly psychedelic posting style Level: 36 Posts: 188/247 EXP: 299540 Next: 8570 Since: 12-10-07 From: 480/85260 Last post: 4921 days Last view: 4579 days |
Download at:
http://retromachineshop.com/dl/consoledev/d411crack-fbc004.200909252248.LZMA.7z "readme.txt":
"D411_ROM.txt" (D411 WROM dump):
"d411crack.bas":
Sample "d411crack.exe" 0x004 test dump:
The floor is now open for discussion. Posted by KP9000 Posted by NightKev (Merged new thread having two replies with this thread.) ____________________ NIHYFDTTMWTMR |
magno |
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Newcomer Level: 3 Posts: 1/1 EXP: 72 Next: 56 Since: 10-28-09 Last post: 5265 days Last view: 5032 days |
This is great!! What a job you are doing!!!
Maybe you could fin useful information about Tengen CIC chip (which was used on NES) that was some time ago "reversed ingenieered"... ROM content and source code are available in NesDev Forum. Please, keep us updated about any news. |
Main - ROM Hacking - Potential D411 SNES CIC lock-out chip crack | New thread | New reply |
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