Nand/private/movable.sed
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| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x4 | Magic "SEED" |
| 0x4 | 0x4 | This u8 must be zero |
| 0x8 | 0x100 | RSA-2048 signature over the 0x10-byte data at 0x108 |
| 0x108 | 0x10 | ? |
| 0x118 | 0x8 | Last 8-bytes of an AES engine keyY for 3 keyslots |
This file is transferred to the destination 3DS during a System Transfer, the source 3DS then uses a new file retrieved from the shop server. The keyslots this keyY is loaded to is the keyslots used for SD data. This keyY is the console-unique portion of these 3 keyslots. The 16-character sub-directories under the SD card "/Nintendo 3DS" directory have their directory names generated using this file.