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  1. #31
    Banned User DSpider's Avatar
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    Quote Originally Posted by CJPC View Post
    I suppose you could decrypt your retail PS3's HDD, fiddle with the SFO, put it back - but its pretty much pointless - there is nothing to accomplish by doing it.
    Pointless ? No, not necessarily. If developers could have access to save games... Maybe a buffer overflow in a certain game could result in running unsigned code. Remember GTA: LCS or Lumines on the PSP ? Gripshift ?
    Quote Originally Posted by Mathieulh View Post
    2. Since 2.80 there is a nice new protection added called DRMDIR, basically they add a directory under the titleid folder (on the hdd) called DRMDIR which contains hashes of the PARAM.SFO and EBOOT.BIN files) This folder is created upon package install and will of course prevent you from replacing the PARAM.SFO (which is too bad since the database issue could have been bypassed after rebuilding it)
    Well, we could use that Infectus something-something to go back to 2.70 or similar and replace .sfo files at will !
    Quote Originally Posted by Mathieulh View Post
    UPDATE: For those who wonder why not just replace the DRMDIR folder, its content is not viewable under user/game priviledges, also the hashes stored there are not the standard md5 or sha1 you are used to see but based on a hmac algorithm.
    Could it be viewable with kernel privileges ? Once we do something with those modified .sfo files, of course.
    Quote Originally Posted by Mathieulh View Post
    Anyway this idea is stupid and wont work. (not to mention you would need to go through the hassle of decrypting, encrypting your hdd (which would take hours for each step) etc etc each time you want to change your game. Not worth the trouble, you are better off purchasing your games than doing this.
    Not if you buy an external HDD (which are pretty cheap now). You could transfer the backups to the internal HDD and let the PS3 encrypt the data on the fly. But my best bet would be a "redirection" of the BluRay drive to an SSD (1ms access time). Even tho their a bit pricey, they will probably provide much much better loading speeds than the BR drive. Again, kinda like the PSP with the UMD format. Games would load faster and perform better.

  2. #32
    Banned User Mathieulh's Avatar
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    Quote Originally Posted by DSpider View Post
    Pointless ? No, not necessarily. If developers could have access to save games... Maybe a buffer overflow in a certain game could result in running unsigned code. Remember GTA: LCS or Lumines on the PSP ? Gripshift ?
    The ps3 is not a psp, period.
    Quote Originally Posted by DSpider View Post
    Well, we could use that Infectus something-something to go back to 2.70 or similar and replace .sfo files at will !
    No you could not, ever since 2.10 you can no longer use infectus to downgrade even if you possess a nand dump from your own ps3 (not to mention that the new ps3s have /dev_flash stored on the hdd), beside even if you could, can you imagine the hassle it would be to do that all the time ?
    Quote Originally Posted by DSpider View Post
    Could it be viewable with kernel privileges ? Once we do something with those modified .sfo files, of course.
    Yes you could but then what would be the point ? There would be more efficient ways of running backups then.
    Quote Originally Posted by DSpider View Post
    Not if you buy an external HDD (which are pretty cheap now). You could transfer the backups to the internal HDD and let the PS3 encrypt the data on the fly. But my best bet would be a "redirection" of the BluRay drive to an SSD (1ms access time). Even tho their a bit pricey, they will probably provide much much better loading speeds than the BR drive. Again, kinda like the PSP with the UMD format. Games would load faster and perform better.
    Aren't you forgetting something ? The bluray disc binaries aren't signed to run from the hard disc and even if they were, the paths still point to dev_bdvd
    beside the loading speed wouldn't be that better considering most games sport hdd installs, so that excuse holds on psp but certainly not on ps3.
    Quote Originally Posted by DemonHades
    u have documents certified it?always talk but never with documents
    A log is worth more than a thousand words (see below), but perhaps you could just install something on 2.80+ and decrypt the harddrive, then you will figure it out. And of course there are not any kind of public documentation regarding this point. It is not like sony is handling a ps3 wiki.

    [Register or Login to view code]

    Last edited by CJPC; 10-16-2009 at 03:00 PM Reason: Fixed bad quote tag

  3. #33
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    thx math, how tell you from msn sorry for the coments, that explanation is best and good words

    1saludo

  4. #34
    Registered User mob1's Avatar
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    Friends I can not use the program, it only stays on the screen of application error.

    Does not run, I downloaded and always the same error. Using windows XP 2002 service pack 3. Precisdo program to edit the GTA 4 and other jgos to work on my TV is old. Sorry for bad English!

 
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