PSJailbreak Exploit Payload Reverse Engineering: Difference between revisions

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''' Source: http://ps3wiki.lan.st/index.php?title=PUP_File_Format '''
----
'''PUP''' (Playstation Update Package) files are packages which contain the files used to update a PSP or PS3 system.
 
The HMAC key used to verify the packages has been released. Look around for "pup-hmac"
 
= Header  =
 
{| border="1"
|-
! Offset
! Length
! Type
! Information
|-
| 0x0
| 0x8
| unsigned long
| Magic
|-
| 0x8
| 0x8
| unsigned long
| Package Version
|-
| 0x10
| 0x8
| unsigned long
| Image Version
|-
| 0x18
| 0x8
| unsigned long
| File Count
|-
| 0x20
| 0x8
| unsigned long
| Header Length
|-
| 0x28
| 0x8
| unsigned long
| File Length
|-
| 0x30
| 0x20 * '''File Count'''
| '''File Table'''
| File Table
|-
| 0x30 + (0x20 * '''File Count''')
| 0x20 * '''File Count'''
| '''Hash Table'''
| Hash Table
|-
| 0x30 + (0x40 * '''File Count''')
| 0x14
| bytes
| Header Hash
|-
| 0x44 + (0x40 * '''File Count''')
| 0xC
| bytes
| Unknown
|}
 
== File Table  ==
 
The file table consists of a number of file entries determined by '''File Count''', with the format below:
 
{| border="1"
|-
! Offset
! Length
! Type
! Information
|-
| 0x0
| 0x8
| unsigned long
| Entry ID
|-
| 0x8
| 0x8
| unsigned long
| Data Offset
|-
| 0x10
| 0x8
| unsigned long
| Data Length
|-
| 0x18
| 0x8
| unsigned long
| Unknown
|}
 
=== Filename IDs ===
 
{| border="1"
|-
! File Entry ID
! Filename
|-
| 0x100
| ps3version.txt
|-
| 0x101
| resource.txt
|-
| 0x102
| shop.txt
|-
| 0x103
| pup_data.txt
|-
| 0x104
| patch_build.txt
|-
| 0x200
| ps3swu.self
|-
| 0x201
| vsh.tar
|-
| 0x202
| dots.txt
|-
| 0x203
| patch_data.pkg
|-
| 0x300
| update_files.tar
|}
 
== Hash Table ==
The hash table contains a hash entry for every file inside the PUP.
 
The hash entry format is:
{| border="1"
|-
! Offset
! Length
! Type
! Information
|-
| 0x0
| 0x8
| unsigned long
| File Entry ID
|-
| 0x8
| 0x14
| bytes
| HMAC-SHA1 hash
|-
| 0x1C
| 0x4
| unsigned int
| Unknown
|}

Revision as of 01:20, 25 February 2011

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