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| 40
| 40
| Reserved
| Reserved
|-
| 0x220
| 4
| Modcrypt area 1 offset
|-
| 0x224
| 4
| Modcrypt area 1 size
|-
| 0x228
| 4
| Modcrypt area 2 offset
|-
| 0x22C
| 4
| Modcrypt area 2 size
|-
|-
| 0x230
| 0x230
The first 0xE00 bytes of the NDS header is signed with an 1024-bit RSA signature.
The first 0xE00 bytes of the NDS header is signed with an 1024-bit RSA signature.
= Modcrypt =
Modcrypt is a new additional way of encrypting parts of the NDS ROM using AES CTR. It is mostly being used to encrypt the DSi ARM9 and DSi ARM7 executable binaries. For example, DSi hybrid card-based games have only the DSi ARM9 binary encrypted, while nand-based applications have both the DSi ARM9 and DSi ARM7 binaries encrypted.
= Digests =
= Digests =