Content License: Difference between revisions

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(Created page with "The PS4 content license files are like on PSP, PS3 and PS4 the .rif files.<br /> But for the first time, the format has been a lot changed: * There is only 1 .rif file (and .i...")
 
 
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The PS4 content license files are like on PSP, PS3 and PS4 the .rif files.<br />
The PS4 content license files are like on PSP, PS3 and PSVita the .rif files.
But for the first time, the format has been a lot changed:
 
* There is only 1 .rif file (and .idx) per game/app. On PSP, PS3 and PSVita, there were 1 .rif per content (1 for the game + 1 for each DLC)
But for the first time, the format has been changed a lot:
* There is only one .rif file (and .idx) per game/app. On PSP, PS3 and PSVita, there were 1 .rif per content (1 for the game + 1 for each DLC)
* This is handled by adding each DLC license to the game .rif. To know where the license is in the .rif, PS4 generates a .idx file (RIF index).
* This is handled by adding each DLC license to the game .rif. To know where the license is in the .rif, PS4 generates a .idx file (RIF index).
* When the .rif is downloaded from PSN by SceShellcore, it is added to the current .rif file of the game (if existing).<br />Then the .idx is generated. ShellCore calls npdrm_ioctl to get a 0x10 bytes HMAC-SHA256 per console key from SAMU.<br />The HMAC is computed over the RIF data and is written to the .idx entry.<br />The aim is both to ensure .rif integrity and to make sure the .rif and .idx can't be copied to another PS4 console.
* When the .rif is downloaded from PSN by SceShellcore, it is added to the current .rif file of the game (if existing).<br />Then the .idx is generated. ShellCore calls npdrm_ioctl to get a 0x10 bytes HMAC-SHA256 per console key from SAMU.<br />The HMAC is computed over the RIF data and is written to the .idx entry.<br />The aim is both to ensure .rif integrity and to make sure the .rif and .idx can't be copied to another PS4 console.
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The .rif file embeds one or more [[RIF Entry|RIF entry]].
The .rif file embeds one or more [[RIF Entry|RIF entry]].
[[Rif/samples|Sample disc rif files]].


=== RIF Entry ===
=== RIF Entry ===
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| Version || <code>0x004</code> || 2 || <code>00 01</code>, <code>00 02</code> || See [[#RIF Type|RIF Type]]
| Version || <code>0x004</code> || 2 || <code>00 01</code>, <code>00 02</code> || See [[#RIF Type|RIF Type]]
|-
|-
| Unknown || <code>0x006</code> || 2 || <code>00 02</code>, <code>FF FF</code> || ?Finalized flag? ?DRM Type?
| ?DRM Type? || <code>0x006</code> || 2 || <code>00 02</code> for KDS, <code>FF FF</code> for disc ||
|-
|-
| PSN Account ID || <code>0x008</code> || 8 || <code>AB CD EF 01 02 34 78 91</code> || zeroed if not KDS RIF
| PSN Account ID || <code>0x008</code> || 8 || <code>AB CD EF 01 02 34 78 91</code> || zeroed if not KDS RIF
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| Unknown || <code>0x00</code> || 0x10 || - ||  
| Unknown || <code>0x00</code> || 0x10 || - ||  
|-
|-
| Unknown || <code>0x10</code> || 0x10 || - ||  
| Zeroes? || <code>0x10</code> || 0x10 || - ||  
|-
|-
| Unknown || <code>0x20</code> || 0x10 || - ||  
| Zeroes? || <code>0x20</code> || 0x10 || - ||  
|-
|-
| Content Key Seed || <code>0x30</code> || 0x10 || - || Used to generate PFS key
| Content Key Seed || <code>0x30</code> || 0x10 || - || Used to generate PFS key
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| Unknown || <code>0x60</code> || 0x10 || - ||  
| Unknown || <code>0x60</code> || 0x10 || - ||  
|-
|-
| Entitlement Key || <code>0x70</code> || 0x10 || - ||  
| Entitlement Key || <code>0x70</code> || 0x10 || - || Usually zeroes
|-
|-
| Unknown || <code>0x80</code> || 0x10 || - ||  
| Zeroes? || <code>0x80</code> || 0x10 || - ||  
|}
|}


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This RIF form is paired with a .idx file.
This RIF form is paired with a .idx file.


When in this form, contrarly to [[RIF File|RIF files]] a [[#RIFA Header|RIFA header]] is present, followed by sequential [[#RIF Entry|RIF entries]].
When in this form, contrarly to [[#RIF File|RIF files]] a [[#RIFA Header|RIFA header]] is present, followed by sequential [[#RIF Entry|RIF entries]].


See also [[#RIF IDX|IDX structure]] for the paired .idx file.
See also [[#RIF IDX|IDX structure]] for the paired .idx file.

Latest revision as of 14:31, 24 November 2022

The PS4 content license files are like on PSP, PS3 and PSVita the .rif files.

But for the first time, the format has been changed a lot:

  • There is only one .rif file (and .idx) per game/app. On PSP, PS3 and PSVita, there were 1 .rif per content (1 for the game + 1 for each DLC)
  • This is handled by adding each DLC license to the game .rif. To know where the license is in the .rif, PS4 generates a .idx file (RIF index).
  • When the .rif is downloaded from PSN by SceShellcore, it is added to the current .rif file of the game (if existing).
    Then the .idx is generated. ShellCore calls npdrm_ioctl to get a 0x10 bytes HMAC-SHA256 per console key from SAMU.
    The HMAC is computed over the RIF data and is written to the .idx entry.
    The aim is both to ensure .rif integrity and to make sure the .rif and .idx can't be copied to another PS4 console.

The files an be found in:

  • For disc licenses: /mnt/disc/license/rif (on the BluRay) and /preinst2/app/CUSA00001/app.rif (on the HDD)
  • For digital content licenses: /user/license/*.rif, /user/license/*.idx
  • For another type of digital content licenses: /user/home/*/license/*.rif, /user/home/*/license/*.idx

RIF File[edit | edit source]

This is a .rif that is not paired with a .idx file.

For a rif file that is paired with a .idx file, see RIFA file.

The .rif file embeds one or more RIF entry.

Sample disc rif files.

RIF Entry[edit | edit source]

Fields are big-endian. Each RIF entry is 0x400 bytes sized.

Name Offset Size Example Remark
Magic 0x000 4 52 49 46 00 ('RIF\0')
Version 0x004 2 00 01, 00 02 See RIF Type
?DRM Type? 0x006 2 00 02 for KDS, FF FF for disc
PSN Account ID 0x008 8 AB CD EF 01 02 34 78 91 zeroed if not KDS RIF
Start Timestamp 0x010 8 00 00 00 00 52 85 64 00 Start timestamp (unix/epoch)
End Timestamp 0x018 8 7F FF FF FF FF FF FF FF End timestamp (unix/epoch), typically INT64_MAX
Content ID 0x020 0x30 IP9100-CUSA00001_00-PLAYROOM00000000
RIF Type 0x050 2 01 01 See RIF Type
Unknown 0x052 2 00 0F
Unknown 0x054 2 00 1A
SKU Flag 0x056 2 00 01
Extra Flags 0x058 4 00 00 00 00
Unknown 0x060 4 00 02 00 00
Unknown 0x064 4 00 00 00 01
?RIF format revision? 0x068 4 00 00 00 02, 00 00 00 03 2 on old rifs (3.55), 3 on new rifs (5.00)
Unknown 0x06C 2 00 02
Unknown 0x06E 0x1D2 -
Disc Key 0x240 0x20 - Not present in KDS RIFs
Secret Encryption IV 0x260 0x10 -
Encrypted Secret 0x270 0x90 - See Secret for when decrypted
RSA Signature 0x300 0x100 - Verified using public key depending on type

RIF Type[edit | edit source]

Type FW Type Min Ver Max Ver Name Description Remarks
0x000 All 1 1 KDS Used for digital content Revoked in at least 4.05
0x001 All 2 2
0x002 All 3 3
0x101 All 1 1 Isolated Used for truly free content (Playroom, Vue, Spotify)
0x302
0x102 All 1 1 Disc Used for Blu-ray content
0x200 DEX/TEST 1 1 Fake/Debug Used for testing/debugging
0x201
0x202
0x303 CEX 1 1 ?
0x304 ? (not CEX) 1 1 ?
0x305 DEX/TEST 1 1 ?

Secret[edit | edit source]

This structure corresponds to the decrypted form. Size is 0x90 bytes.

Name Offset Size Example Remark
Unknown 0x00 0x10 -
Zeroes? 0x10 0x10 -
Zeroes? 0x20 0x10 -
Content Key Seed 0x30 0x10 - Used to generate PFS key
SELF Key Seed 0x40 0x10 - Used to generate SELF key
Unknown 0x50 0x10 -
Unknown 0x60 0x10 -
Entitlement Key 0x70 0x10 - Usually zeroes
Zeroes? 0x80 0x10 -

RIFA File[edit | edit source]

This RIF form is paired with a .idx file.

When in this form, contrarly to RIF files a RIFA header is present, followed by sequential RIF entries.

See also IDX structure for the paired .idx file.

RIFA Header[edit | edit source]

Fields are big-endian. Size is 0x400 bytes.

Name Offset Size Example Remark
Magic 0x000 4 72 69 66 61 ("rifa")
Service ID 0x004 0x14 IP9100-CUSA00001_00\0 Size assumed
Unknown 0x018 0x3D8 full of zeroes

IDX File[edit | edit source]

This is the RIF index file. It is used in pair with RIFA files.

RIF IDX[edit | edit source]

Fields are little-endian. Size is 0x20 bytes (header) + entries_count * 0x30 bytes (entry_size).

Name Offset Size Example Remark
Magic 0x00 4 72 69 64 78 ("ridx")
Entries count 0x04 4 01 00 00 00, 03 00 00 00
Version 0x08 1 01 1 (current)
Service ID 0x09 19 IP9100-CUSA00001_00
Unknown 0x1C 4 01 00 00 00, 00 00 00 00
Entries 0x20 0x30 * Entries Count See RIF IDX entry

RIF IDX Entry[edit | edit source]

Fields are little-endian. Size is 0x30 bytes.

Name Offset Size Example Remark
Entitlement label 0x00 16 PLAYROOM00000000
RIF Offset 0x10 8 00 04 00 00 00 00 00 00 Offset into RIFA file
RIF Size 0x18 8 00 04 00 00 00 00 00 00
Unknown 0x20 1 01
Unknown 0x21 1 00
RIF data HMAC-SHA256 0x22 8 - First 8 bytes of HMAC-SHA256 of RIF data using per-console data as key
Unknown 0x2A 6 -
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