CECDU:WriteMessageWithHMAC

Request

Index Word	Description
0	Header code [0x00070106]
1	NCCH Program ID
2	bool is_out_box?
3	message ID size (unused, always 8)
4	buffer size (unused)
5	Descriptor for mapping a read-only buffer in the target process
6	buffer address
7	Descriptor for mapping a read-only buffer in the target process
8	HMAC key address
9	Descriptor for mapping a read/write buffer in the target process
10	message ID address

Response

Index Word	Description
0	Header code [0x00070046]
1	Result code
2	Descriptor for mapping a read-only buffer in the target process
3	buffer address
4	Descriptor for mapping a read-only buffer in the target process
5	HMAC key address
6	Descriptor for mapping a read/write buffer in the target process
7	message ID address