Editing EDAT files

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EDATA is a file format used on PSP and PS3 to store encrypted data. There is also on PS3 only the SDATA file format which is very similar to EDATA (to detail). This page is for now about PS3 EDATA/SDATA only.
[[Category:Software]]{{Wikify}}


= Info on the talk page =
=Info on the talk page=
'''Info on the talk page'''


'''Info on the talk page''': please digest the info and move it here'''
'''The info on this page is an extract of conversations and forum posts, please digest the info and move it this page'''


= Location =
===Decryption of EDATS===


EDAT files are stored under .edat extension. They are often packed in NPDRM [[PKG files]], downloaded from PS Store then extracted to the PS3 HDD. There are also PSP EDAT files which have a different format (to document).
Three ways to do it:
* act.dat,rif,idps combo
* rap
* free content (npdrm1 klic)


= Structure (Encrypted Format) =
====Free Content====


== Header ==
Simply decrypted with appldr keys and free klic


====Using RAP====
Overview of steps:
* Obtain rifkey from rap ([http://pastie.org/private/pmnmsnqg6zbfnk9xactbw flatz's rap2rifkey])
* Decrypt EDAT using corresponding klic (minis,psxclassics,etc) and rifkey
====='''Header Structure (Encrypted Format)'''=====
{| class="wikitable" style="text-align: center;"
{| class="wikitable" style="text-align: center;"
|-
|-
! style="background-color:#ffffff; border-left:1px solid #ffffff; border-top:1px solid #ffffff;" |
! style="background-color:#123EDA; color:#FFFFFF;" |Offset  || style="background-color:#123EDA; color:#FFFFFF;" |Description || style="background-color:#123EDA; color:#FFFFFF;" |Size || style="background-color:#123EDA; color:#FFFFFF;" |Type || style="background-color:#123EDA; color:#FFFFFF;" |Note
! Offset !! Name !! Size !! Type !! Notes
|-
|-
! rowspan="10" | Header
| 0x00  || magic      || 4      || uint32 ||"NPD" (4E 50 44 00)
|-
|-
| 0x0 || NPD || 0x80 || PS3_NPD || See [[NPD]].
| 0x04  || version    || 4      || uint32 ||
*01
*02
*03
*04
|-
|-
| 0x80 || Type || 1 || ?uint8_t? || (separated from Metadata type for wiki format)
| 0x08  || [[License_Types|License Types]]      || 4      || uint32 || for PS2 games, require to be with license.
*00: EDAT
*00 Debug / SDAT
*01: SDAT
*01 Network License: requires network authentification every time.
*80: Non Finalized (unsigned)
*02 Local License: requires first time activation online.
*03 Free License: without license check.
|-
|-
| 0x81 || Metadata type || 3 || ?uint8_t[3]? || (Outdated Flags description from talk page)
| 0x0B  || Application Type  || 4 || uint32 ||  
*00
*00
*01: Compressed?
*01 (only theme/avatar/activation key, come with only PS3LOGO.DAT. [[PKG_files#File_Header_2|PKG items count]] is 0x02) and PS2 EDAT ([http://www.ps3devwiki.com/ps3/Iso.bin.edat#About_PS2_Classics Iso.bin.edat])
*02: Plain text?
|-
*03: Compressed plain text?
| 0x10  || [[PARAM.SFO#CONTENT_ID|CONTENT ID]]    || 48 (0x30) || uint8 || Content Identificator
*05: Compressed?
|-
*06: Plain text?
| 0x40  || Digest        || 16 (0x10) || uint8 || QA digest (seems like to be a SHA-1 hash of the non-finalized file) : hash of the original data which is unknown until the whole file is read, can not be used as check. Used as watermark on custom edat.
*07: Compressed plain text?
|-
*0C: ?
| 0x50  || NPD hash 1    || 16 (0x10) || uint8 || CID-FN hash (an AES CMAC hash of concatenation of Content ID and File Name using the third [[Keys#NPDRM_OMAC_Keys|NPDRM OMAC key]] as CMAC key)
*0D: Compressed data?
*3C: Data/misc?
|-
|-
| 0x84 || Block size || 4 || uint32_t || Default block size is 16 KB (0x4000 bytes). Max block size is 32 KB (0x8000 bytes). Working block sizes are: 1, 2, 4, 8, 16, 32 KB.
| 0x60  || NPD hash 2    || 16 (0x10) || uint8 || header hash (an AES CMAC hash of the 0x60 bytes from the beginning of file using xored bytes of the first [[Keys#NPDRM_OMAC_Keys|NPDRM OMAC key]] and the second NPDRM OMAC key as CMAC key)
|-
|-
| 0x88 || Data size || 8 || uint64_t || Decoded data size.
| 0x70  || Activation dates || 8 || unkn || (Since and up to) filled with 00 if not used
|-
|-
| 0x90 || Metadata sections hash || 0x10 || uint8_t[0x10] ||  
| 0x78  || Activation dates || 8  || unkn || (Since and up to) filled with 00 if not used
|-
|-
| 0xA0 || Extended header hash || 0x10 || uint8_t[0x10] || AES-CMAC hash of 160 bytes from the beginning of EDAT file. It uses the hash key as AES-CMAC key and it depends on the file flags and keys. ?What does this mean, see make_npdata by Hykem?
| 0x80  || NPD type      || 1  || uint8 || (Separated from Metadata type for wiki format)
*00 Finalized EDAT
*01 Finalized SDAT
*80 Non Finalized EDAT
*81 Non Finalized SDAT
|-
|-
| 0xB0 || ECDSA Metadata signature || 0x28 || uint8_t[0x28] || ECDSA curve type is vsh type 2. ECDSA public key is vsh public key (to check). It can be zeroed on forged file.
| 0x83  || Metadata type      || 3 || uint8 || (Flags description from talk page)
*00
*01 Compressed?
*02 Plain text?
*03 Compressed plain text?
*05 Compressed?
*06 Plain text?
*07 Compressed plain text?
*0C ?
*0D Compressed data?
*3C data/misc?
|-
|-
| 0xD8 || ECDSA Header signature || 0x28) || uint8_t[0x28] || ECDSA curve type is vsh type 2. ECDSA public key is vsh public key (to check). Enabled (only?) for PS2 classic contents: all PS3 CFWs are patched to skip the ECDSA signature check. It can be zeroed on forged file.
| 0x84  || Segment size      || 4 || uint8 || default block is 16384 bytes = 0x4000. Seen also 0x8000.
|-
|-
! colspan=6 |    
| 0x88  || Data size        || 8  || uint8 || decoded data size
|-
|-
! rowspan="3" | Body
| 0x90  || Unknown hash?    || 16 (0x10)  ||  ||
|-
|-
| 0x100 || Encrypted file || Variable || uint8_t[variable] || The file is encrypted using AES128CBC.
| 0xA0  || Unknown hash?    || 16 (0x10)  || ||
|-
| 0xB0  || Unknown data?    || 40 (0x28)  ||  ||
|-
| 0xD8  || ECDSA signature  || 40 (0x28)  ||  || Enabled (only?) for PS2 classic: all custom firmwares are patched to skip the ECDSA check. Might also means than by forgering your ps2 game to match an original rif purchased on cfw and transfer it on ofw will not work.
|-
|-
| 0x** || Padding || Variable || uint8_t[variable] || Aligned on ?? bytes.
|}
|}


== Footer ==
====='''Footer Structure (Encrypted Format)'''=====
 
{| class="wikitable" style="text-align: center;"
{| class="wikitable" style="text-align: center;"
|-
|-
! Description || Size || Notes
! style="background-color:#123EDA; color:#FFFFFF;" |Description || style="background-color:#123EDA; color:#FFFFFF;" |Size || style="background-color:#123EDA; color:#FFFFFF;" |Note
|-
|-
| Name || 5 || "EDATA" or "SDATA"
| Name   || 5 || "EDATA" or "SDATA"
|-
|-
| Space character || 1 || ' ' = 0x20
| Space   || 1 || 0x20
|-
|-
| Packager Version || 8 ||
| Revision Version? || 8 ||
*Version 1: "packager"
*Version 1: "packager"
*Version 2: "2.4.0.L "
*Version 2: "2.4.0.L "
*Version 2: "2.4.0.W "
*Version 2: "2.4.0.W "
*Version 2: "2.7.0.W "
*Version 2: "2.7.0.L "
*Version 2: "2.7.0.L "
*Version 3: "3.1.0.W "
*Version 3: "3.3.0.L "
*Version 3: "3.3.0.L "
*Version 3: "3.3.0.W "
*Version 3: "3.3.0.W "
*Version 4: "4.0.0.L "
*Version 4: "4.4.0.L "
*Version 4: "4.0.0.W "
*Version 4: "4.4.0.W "
|-
|-
| Padding || 2 || 00 00
| End of the file || 2 || 00 00
|}
|}


The footer is plaintext. It seems that the footer is not present in some EDAT files version 1 (e.g. in some Ridge Racer 7 additional contents) although it should theoretically be present with version = "packager".
Note: Applied for normal ps3 edats and minis.edat
 
= EDAT Versions =
 
There are 4 PS3 EDAT (and NPD) format major versions:
* 1: compatible with SDK 2.1x or older. Supported since at least PS3 System Software version 1.01.
* 2: compatible with SDK 3.0x or older
* 3: compatible with SDK 3.7x or older
* 4: compatible with SDK ?.?? or older. Supported since certainly some 4.0x System Software version.
 
= EDAT Extraction =
 
EDAT decryption, and complete verification, requires Klicensee. See [[NPDRM]].
 
= EDAT Generation =
 
To document.
 
= Tools =
 
== Official tools ==
 
=== make_edata_npdrm version 1.0.0 ===
 
Found in SCE PS3 SDK 1.92.
 
=== make_edata_npdrm version 2.7.0.W ===
 
make_edata_npdrm version 2.7.0.W (2009-08-18)
 
Found in SCE PS3 SDK 3.00.
 
=== make_edata_npdrm version 3.3.0.W ===
 
make_edata_npdrm version 3.3.0.W (2011-03-04)
 
Found in SCE PS3 SDK 3.60.
 
=== make_edata_npdrm version 4.0.0.W ===
 
make_edata_npdrm version 4.0.0.W (?date?)
 
Found in SCE PS3 SDK 4.75.
 
<pre>
make_edata_npdrm -h
make_edata_npdrm: version 4.0.0.W
usage:
  make_edata_npdrm [-options] <input file> <output file>
 
options:
  -h, --help    : print this usage and exit
  -v, --version  : print program version and exit
  -p, --progress : print progress [%]
 
  [create option]
  -b <size(KB)>  : block size (default 16, max 32)
  -z, --compress : data compress
 
  --format1      : old format (compatible with SDK 2.1x or older)
  --format2      : old format (compatible with SDK 3.0x or older)
  --format3      : old format (compatible with SDK 3.7x or older)
 
  [extract/check option]
  -x, --extract  : extract raw image from developing EDATA
  -i, --info    : print file information
</pre>
 
== Unofficial tools ==
 
=== make_npdata by Hykem ===
 
* [https://github.com/ErikPshat/make_npdata-hykem make_npdata by Hykem]
 
=== True Ancestor EDAT Rebuilder by JjKkYu ===
 
To document.
 
{{File Formats}}<noinclude>[[Category:Main]]</noinclude>
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