Editing HDD Encryption

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[[Category:Software]]
=Introduction=
=Introduction=


* The following information was reverse engineered from LV1, Storage Manager in LPAR1 and sb_iso_spu_module.self.
* The following information was reverse engineered from LV1, Storage Manager in LPAR1 and sb_iso_spu_module.self.
* I'm able to decrypt/encrypt my PS3 HDD and VFLASH on PC now.
* I'm able to decrypt/encrypt my PS3 HDD and VFLASH on PC now.
* See also [[Mounting HDD on PC]]
* See also http://www.ps3devwiki.com/wiki/Mounting_HDD_on_PC


=HDD Encryption=
=HDD Encryption=
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* XTS-AES-128 is used to encrypt all data on PS3 HDD.
* XTS-AES-128 is used to encrypt all data on PS3 HDD.
* XTS is NOT CBC!!! It's AES-ECB with tweak XORing. AES-CBC is impractical for HDD encryption. Each sector can be encrypted/decrypted independently from other HDD sectors.
* XTS is NOT CBC!!! It's AES-ECB with tweak XORing. AES-CBC is impractical for HDD encryption. Each sector can be encrypted/decrypted independantly from other HDD sectors.
* Good paper about XTS-AES:  http://ntnu.diva-portal.org/smash/get/diva2:347753/FULLTEXT01
* Good paper about XTS-AES:  http://ntnu.diva-portal.org/smash/get/diva2:347753/FULLTEXT01
* VFLASH is encrypted twice. First with ENCDEC keys and then with ATA keys.
* VFLASH is encrypted twice. First with ENCDEC keys and then with ATA keys.
* Tweak and data XTS keys are of size 32 bytes but only the first 16 bytes are used.
* Tweak and data XTS keys are of size 32 bytes but only the first 16 bytes are used.
* '''You can set and clear ATA keys with my Linux ps3encdec device driver which I use to test HDD/VFLASH encryption. But be careful, never set/clear ATA keys while some HDD regions/partitions are mounted !!! You will corrupt your data on your HDD !!!'''
* '''You can set and clear ATA keys with my Linux ps3encdec device driver which i use to test HDD/VFLASH encryption. But be careful, never set/clear ATA keys while some HDD regions/partitions are mounted !!! You will corrupt your data on your HDD !!!'''


==Phat Consoles==
==Phat Consoles==


* On the PHAT consoles with NAND flash AES-CBC-192 is used for HDD encryption and AES-CBC-128 for VFLASH encryption.
* On the PHAT consoles AES-CBC-192 is used for HDD/VFLASH encryption.
* So no tweak and tweak key here. Each sector is encrypted with the same '''zeroed''' IV.
* So no tweak and tweak key here. Each sector is encrypted with the same '''zeroed''' IV.
* VFLASH is encrypted '''once''' with ENCDEC key and zeroed IV!
* VFLASH is encrypted '''once''' with ENCDEC key and zeroed IV!
* PHAT consoles are susceptible to the TLS CBC IV attack
* Data key is of size 32 bytes but only the first 24 bytes are used.
* On the PHAT consoles with NOR flash AES-CBC-192 is used for HDD encryption(as on FAT consoles with NAND) and XTS-AES-128 for VFLASH encryption(as on slim consoles).
* Data key is of size 32 bytes but only the first 24 bytes are used for HDD and 16 bytes for VFLASH.
* See also http://www.multiupload.nl/6PIFV4GKSH (contains scripts of ENCDEC emulator for both types of consoles).
* See also http://www.multiupload.nl/6PIFV4GKSH (contains scripts of ENCDEC emulator for both types of consoles).


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{{Reverse engineering}}<noinclude>[[Category:Main]]</noinclude>
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