Nand/private/movable.sed
| 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 likely transferred to the destination 3DS during a System Transfer, since SD data from the source 3DS is immediately usable on that 3DS once the transfer is complete. Therefore, the keyslots this keyY is loaded to is presumably the keyslots used for SD data.