AMPXI:ValidateDSiWareSectionMAC

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Request

Index Word Description
0 Header code [0x005500C4]
1 Buf0 size, must be 0x10-bytes.
2 Buf1 size, must be 0x20-bytes.
3 u8 DSiWare section index
4 Buf0Size<<8 | 0x4
5 Buf0 ptr
6 Buf1Size<<8 | 0x14
7 Buf1 ptr

Response

Index Word Description
0 Header code
1 Result code

Description

This calculates an AES MAC over the 0x20-byte buf1 SHA-256 hash. When this MAC matches the MAC stored in buf0, result-code 0 is returned, otherwise an error is returned. This is used for verify the DSiWare section's metadata MAC after decrypting the payload data.