tag:blogger.com,1999:blog-10457042.post116937754701213882..comments2023-03-26T13:50:14.297+02:00Comments on Nicola's MAME Ramblings: CPS2 Key Bit OrderNicolahttp://www.blogger.com/profile/08907289982537901905noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-10457042.post-1169820506920503802007-01-26T15:08:00.000+01:002007-01-26T15:08:00.000+01:00Nic,It looks as though you're doing a great job wi...Nic,<BR/><BR/>It looks as though you're doing a great job with the keys. I know alot of this is over my head but it's fascinating what you and the team are able to provide to the end-users after the big fight.<BR/><BR/>Blessed Be Nic. Sending energies your way to you and the rest of the MAMEdevsAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-10457042.post-1169488583613899092007-01-22T18:56:00.000+01:002007-01-22T18:56:00.000+01:00What about those games with revisions with differe...What about those games with revisions with different number of 1s ?Parthorishttps://www.blogger.com/profile/07896760345402274542noreply@blogger.comtag:blogger.com,1999:blog-10457042.post-1169402697804268412007-01-21T19:04:00.000+01:002007-01-21T19:04:00.000+01:00No, not every key has 32 1s. But all the keys for ...No, not every key has 32 1s. But all the keys for SOME games, like ssf2, have 32 1s. ssf2 was the first game made for this hardware, and it seems to use particularly simple keys. The other games don't.Nicolahttps://www.blogger.com/profile/08907289982537901905noreply@blogger.comtag:blogger.com,1999:blog-10457042.post-1169398477309627862007-01-21T17:54:00.000+01:002007-01-21T17:54:00.000+01:00I remember alot of "random" number generators for ...I remember alot of "random" number generators for early cpu's needed a seed. Perhaps when you think you are seeing dates or possible other paterns you're just seeing the seed?<BR/><BR/>Thanks for documenting all this Nicola. I must admidt that 90% flies over my head, but it still damned interesting reading!blibhttps://www.blogger.com/profile/09153857524097003160noreply@blogger.comtag:blogger.com,1999:blog-10457042.post-1169397714698460362007-01-21T17:41:00.000+01:002007-01-21T17:41:00.000+01:00I know squat about encryption, so pardon my ignora...I know squat about encryption, so pardon my ignorance. Are you saying EVERY key has 32/32 1/0's? Could that be part of the suicide routines? IE if a key is encountered that isn't 32/32 the board instantly suicides itself? Perhaps the numbers are still random, but simply created with an absolute rule that they must be 32/32?blibhttps://www.blogger.com/profile/09153857524097003160noreply@blogger.comtag:blogger.com,1999:blog-10457042.post-1169381161859095172007-01-21T13:06:00.000+01:002007-01-21T13:06:00.000+01:00The other keys don't look much better. The problem...The other keys don't look much better. The problem is that there are countless permutations that would produce similar effects on those 6 keys, so no way to tell which one is correct.Nicolahttps://www.blogger.com/profile/08907289982537901905noreply@blogger.comtag:blogger.com,1999:blog-10457042.post-1169381003535017572007-01-21T13:03:00.000+01:002007-01-21T13:03:00.000+01:00I was thinking the same thing about 0123456789ABC...I was thinking the same thing about 0123456789ABCDEF, but I didn't realize so many keys had exactly 31 ones. Do any of the other keys look better with this same permutation? I wondered if any "birthdays" or whatever pop out.Knarfianhttps://www.blogger.com/profile/14149452918414200882noreply@blogger.com