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Index Word Description
0 Header code [0x00450108]
1 Input buffer size
2 Output buffer size
3 IV size (0x10)
4 (u8) DSiWare section index
5 (Input buffer size << 8) | 0x6
6 Input buffer pointer
7 (IV size << 8) | 0x16
8 Input IV buffer pointer
9 (Output buffer size << 8) | 0x24
10 Output buffer pointer
11 (IV size << 8) | 0x34
12 Output IV buffer pointer


Index Word Description
0 Header code [0x00450041]
1 Result code


This is used during AM:ImportTwlBackup.

The input IV is gotten from the block metadata at the end of each section.

This command will decrypt the input buffer using the given IV, size and DSiWare section index, and outputs the resulting IV after the decryption to be reused with this command to decrypt all data until the entire section has been read.