96
edits
Changes
Jump to navigation
Jump to search
Line 77:
Line 77: − +
→New_3DS FIRM
* Reads [[Flash_Filesystem|NAND]] sector 0x96(NAND image offset 0x12C00), with size 0x200-bytes. Decrypts the first 0x10-byte block in that sector with keyslot 0x11 using AES-ECB. Then the normalkey, keyX, and keyY, for keyslot 0x11 are cleared to zero. Then it uses the output block to set the normalkey for keyslot 0x11.
* Reads [[Flash_Filesystem|NAND]] sector 0x96(NAND image offset 0x12C00), with size 0x200-bytes. Decrypts the first 0x10-byte block in that sector with keyslot 0x11 using AES-ECB. Then the normalkey, keyX, and keyY, for keyslot 0x11 are cleared to zero. Then it uses the output block to set the normalkey for keyslot 0x11.
* Decrypts arm9_bin_buf+0 using keyslot 0x11 with AES-ECB, and initialises keyX for keyslot 0x15 with it.
* Decrypts arm9_bin_buf+0 using keyslot 0x11 with AES-ECB, and initialises keyX for keyslot 0x15 with it.
* Initialises KeyX for keyslots 0x18..0x1F with the output of decrypting a 0x10-byte block with AES-ECB using keyslot 0x11. The last byte in this 0x10-byte input block is increased by 0x01 after initializing each keyslot. These are New3DS-specific keys.
* Initialises KeyX for keyslots 0x18..0x1F with the output of decrypting a 0x10-byte block with AES-ECB using keyslot 0x11. This block sits 0xA0 before the end of the ARM9 binary, and has a SHA-256 of 219DA61289A1D8A85F403A8BC6EBA635269D72FE592EF97DED1D4F7BBDC789E6. The last byte in this 0x10-byte input block is increased by 0x01 after initializing each keyslot. These are New3DS-specific keys.
* [[9.5.0-22|9.5.0-X]]: Decrypts the 0x10-byte block at arm9binhdr+0x60 with AES-ECB using keyslot 0x11, then sets the keyX for keyslot 0x16 to the output data. The normalkey, keyX, and keyY, for keyslot 0x11 are cleared to zero.
* [[9.5.0-22|9.5.0-X]]: Decrypts the 0x10-byte block at arm9binhdr+0x60 with AES-ECB using keyslot 0x11, then sets the keyX for keyslot 0x16 to the output data. The normalkey, keyX, and keyY, for keyslot 0x11 are cleared to zero.