8
edits
Changes
→footer block
|-
|-
| 0x00
| 0x00
| 80
| 20
| Unknown
| SHA1 of banner
|-
|-
| 0x50
| 0x14
| 150*2
| 20
| Producer Company (UCS-2)
| SHA1 of tna4
|-
|-
| 0xDC
| 0x28
| 20
| 20
| SHA-1 of (?)
| SHA1 of tmd
|-
|-
| 0x100
| 0x3c
| 0x1c0
| 20*8
| ECC signature (by console)
| SHA1 of up to 8 contents [if unused, can be whatever happened to be in memory before]
|-
| 0xdc
| 20
| SHA-1 of save data
|-
| 0xf0
| 20
| SHA-1 of ?
|-
| 0x104
| 0x3c
| ECC signature of previous 0x104 bytes with AP cert
|-
| 0x140
| 0x180
| AP cert, signed by TW cert
|-
|-
| 0x2C0
| 0x2c0
| 0x180
| 0x180
| Console signature (see dev.kp)
| TW cert, specific to a console (see dev.kp)
|}
|}
It is assumed that this block contains an ECC signature, aswell as the console id and serial of the DSi that exported the file, as part of a Nintendo cert. Much like the Wii, the DSi carries with it a private ECC key that it can use to sign things, and a certificate signed by Nintendo that attests to the fact that the public ECC key belongs to a genuine DSi.
It is assumed that this block contains an ECC signature, aswell as the console id and serial of the DSi that exported the file, as part of a Nintendo cert. Much like the Wii, the DSi carries with it a private ECC key that it can use to sign things, and a certificate signed by Nintendo that attests to the fact that the public ECC key belongs to a genuine DSi.