Latest revision as of 15:16, 27 October 2020

The main loader of the Secure Kernel. The header contained in it contains the following information:

Header Info[edit | edit source]

Offset	Size	Description	Notes
0x0	4	Magic	E5 C8 B2 64
0x4	4	Header Size	Little Endian (0x2C0)
0x8	4	Entry Point	Little Endian (0x100)
0xC	4	Padding	Zeroes
0x10	0x10	Payload Size	Little Endian (e.g 0xCE00)
0x20	0x20	SHA256 of the decrypted payload
0x40	0x10	Versioning	Ascii 0000360000000000
0x50	0x90	Padding	Zeroes
0xE0	0xE0	MetaData
0x1C0	0x100	RSA Header Signature
0x2C0	0xCE00	Payload
0xD0C0	0x100	RSA Footer Signature
0xD1C0	0x140	Random Padding	Must be filled to multiple of 0x200 bytes

Offset	Size	Description	Notes
0x0	0xC0	MetaData Body	Contains Keyslot Fail Keys up to certain point (3.69), Non Fail Keys afterwards (3.70+)
0xC0	0x20	HDR+ MetaData SHA256HMAC	SHA256 of hdr plus metadata (HMAC)

Offset	Size	Description
0x0	0x20	KeySlot 1
0x20	0x20	Keyslot 2
0x40	0x20	Keyslot 3
0x60	0x20	Keyslot 4
0x80	0x20	Keyslot 5
0xA0	0x20	Keyslot 6

@@ Line 32: / Line 32: @@
 |-
 | 0xD1C0 || 0x140 || Random Padding || Must be filled to multiple of 0x200 bytes
+|-
+|}
+= MetaData Info =
+{| class="wikitable"
+! Offset !! Size !! Description !! Notes
+|-
+| 0x0 || 0xC0 || MetaData Body || Contains Keyslot Fail Keys up to certain point (3.69), Non Fail Keys afterwards (3.70+)
+|-
+| 0xC0 || 0x20 || HDR+ MetaData SHA256HMAC || SHA256 of hdr plus metadata (HMAC)
+|-
+|}
+= MetaData Body =
+{| class="wikitable"
+! Offset !! Size !! Description !! Notes
+|-
+| 0x0 || 0x20 || KeySlot 1 ||
+|-
+| 0x20 || 0x20 || Keyslot 2 ||
+|-
+| 0x40 || 0x20 || Keyslot 3 ||
+|-
+| 0x60 || 0x20 || Keyslot 4 ||
+|-
+| 0x80 || 0x20 || Keyslot 5 ||
+|-
+| 0xA0 || 0x20 || Keyslot 6 ||
 |-
 |}