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WLFIRM is the firmware that runs on the WiFi chip. It is stored as title HNCA.
Format
Start
|
Length
|
Description
|
0x00
|
0x80
|
RSA signature over the rest of the signed header
|
0x80
|
20
|
SHA-1 over the entry header + entries
|
0x94
|
4
|
Length of the entry header + entries
|
0x98
|
8
|
Padding to 0xa0
|
Start
|
Length
|
Description
|
0xa0
|
2
|
Unknown
|
0xa2
|
1
|
Number of entries
|
0xa3
|
1
|
Unknown
|
Entry
Start
|
Length
|
Description
|
0x00
|
4
|
Offset in file
|
0x04
|
4
|
Length
|
0x08
|
4
|
ID
|
0x0c
|
20
|
SHA-1 hash
|