Talk:HDD Encryption

Getting keys the easier way

First you need to get the sb_iso_spu_module.self individuals seed that can be found in the metadata header:

D9 2D 65 DB 05 7D 49 E1 A6 6F 22 74 B8 BA C5 08
83 84 4E D7 56 CA 79 51 63 62 EA 8A DA C6 03 26
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
C3 B3 B5 AA CC 74 CD 6A 48 EF AB F4 4D CD F1 6E
37 9F 55 F5 77 7D 09 FB EE DE 07 05 8E 94 BE 08
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

also found in lv1ldr

Using your console specific eid_root_key/iv (e.g. from metldr dump) and libeeid you can then generate the keys directly by calling

u8 indivs[0x100];
u8 chunk1[0x40] = {0xD9, 0x2D, /*...*/, 0x00};
u8 chunk2[0x40] = {0xC3, 0xB3, /*...*/, 0x00};
indiv_gen(chunk1, chunk2, NULL, NULL, indivs);

Now you have your console specific ATA data key in indivs[0x00-0x20] and the ATA tweak key in indivs[0x40-0x60] :)

About "ENCDEC IV and key"

This key/iv pair set by metldr is your eid_root_key, it's not just used for one purpose. (-> https://nwert.wordpress.com/2012/07/11/eeid-cryptography/)