Request[edit]
| Index Word
|
Description
|
| 0
|
Header code [0x004301C8]
|
| 1-2
|
u64, TWL Title ID (from header)
|
| 3
|
Data size
|
| 4
|
ECDSA signature size (must be 0x3C)
|
| 5
|
CTCert size (must be 0x180)
|
| 6
|
APCert size (must be 0x180)
|
| 7
|
u8, DSiWare export section index
|
| 8
|
(DataSize << 8) | 0x6
|
| 9
|
Data pointer (contains hashes from footer)
|
| 10
|
(ECDSASignatureSize << 8) | 0x16
|
| 11
|
ECDSA signature pointer (signs data)
|
| 12
|
(CTCertSize << 8) | 0x26
|
| 13
|
CTCert pointer (from footer)
|
| 14
|
(APCertSize << 8) | 0x36
|
| 15
|
APCert pointer (from footer)
|
Response[edit]
| Index Word
|
Description
|
| 0
|
Header code [0x00430040]
|
| 1
|
Result code
|
Description[edit]
This verifies the ECDSA signature and certificates from the DSiWare export footer. The input CTCert is verified with a DER stored in NATIVE_FIRM, separate DERs are used for retail and dev/debug.
When the running NATIVE_FIRM only supports DSiWare exports format v1, the max data size is 0xC0, otherwise the max size is 0x1C0.