Revision as of 00:52, 9 February 2022

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.

Info on the talk page

Info on the talk page: please digest the info and move it here

Location

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).

Structure (Encrypted Format)

Header

	Offset	Name	Size	Type	Notes
Header
	0x0	NPD	0x80	PS3_NPD	See NPD.
	0x80	Type	1	?uint8_t?	(separated from Metadata type for wiki format) 00: Finalized EDAT 01: Finalized SDAT 80: Non Finalized EDAT 81: Non Finalized SDAT
	0x81	Metadata type	3	?uint8_t[3]?	(Outdated Flags description from talk page) 00 01: Compressed? 02: Plain text? 03: Compressed plain text? 05: Compressed? 06: Plain text? 07: Compressed plain text? 0C: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?
	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.
	0x88	Data size	8	uint64_t	Decoded data size.
	0x90	Metadata sections hash	0x10	uint8_t[0x10]
	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?
	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.
	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.

Body
	0x100	Encrypted file	Variable	uint8_t[variable]	The file is encrypted using AES128CBC.
	0x**	Padding	Variable	uint8_t[variable]	Aligned on ?? bytes.

Footer

Description	Size	Notes
Name	5	"EDATA" or "SDATA"
Space character	1	' ' = 0x20
Packager Version	8	Version 1: "packager" Version 2: "2.4.0.L " Version 2: "2.4.0.W " Version 2: "2.7.0.L " Version 3: "3.1.0.W " Version 3: "3.3.0.L " Version 3: "3.3.0.W " Version 4: "4.0.0.L " Version 4: "4.0.0.W "
Padding	2	00 00

EDAT Versions

There are 4 PS3 EDAT ?and NPD? format major versions:

1: compatible with SDK 2.1x or older
2: compatible with SDK 3.0x or older
3: compatible with SDK 3.7x or older
4: compatible with SDK ?.?? or older. Certainly supported since some 4.0x FW.

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 4.0.0.W

make_edata_npdrm version 4.0.0.W (2009-02-15)

Found in SCE PS3 SDK ?4.00?

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

Unofficial tools

make_npdata by Hykem

True Ancestor EDAT...

@@ Line 1: / Line 1: @@
+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.
 = Info on the talk page =
@@ Line 14: / Line 16: @@
 |-
 ! style="background-color:#ffffff; border-left:1px solid #ffffff; border-top:1px solid #ffffff;" |
-! Offset
+! Offset !! Name !! Size !! Type !! Notes
-! Name
-! Size
-! Type
-! Notes
-|-
-! rowspan="19" | Header
-|-
-| 0x00 || Magic || 4 || char[4] ||"NPD\0" (4E 50 44 00)
-|-
-| 0x04 || Version || 4 || uint32_t || ex: 1, 2, 3, 4. See [[#Footer]] for the precise packager version.
-|-
-| 0x08 || [[DRM Type]] || 4 || uint32_t || For PS2 EDAT, PS3 FW requires it to be with activation (also a.k.a. Paid content paired with your individual data) for [[PKG_files#Misc.2FNote|PS1 PKG]], PS3 FW 4.00 introduced some changes for installing them with regard to the EDAT DRM type.
-|-
-| 0x0C || [[App Types|Application Type]] || 4 || uint32_t ||
-|-
-| 0x10 || [[PARAM.SFO#CONTENT_ID|CONTENT ID]] || 0x30 || uint8_t[0x30] || Content ID (with padding to fit 48 bytes)
-|-
-| 0x40 || Digest || 0x10 || uint8[0x10] || 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, so it cannot be used as a check, however it can be used as watermark or zeroed on forged file.
-|-
-| 0x50 || NPD CID-FN Hash || 0x10 || uint8_t[0x10] || CID-FN hash. AES-CMAC hash of concatenation of Content ID (48 bytes) and EDAT file name (eg MINIS.EDAT) using the third [[Keys#NPDRM_OMAC_Keys|NPDRM OMAC key]] as AES-CMAC key. Example: aes_cmac(55 50 30 35 37 36 2D 4E 50 55 5A 30 30 31 34 39 5F 30 30 2D 56 41 4E 47 55 41 52 44 32 30 30 30 30 30 30 31 00 00 00 00 00 00 00 00 00 00 00 00 4D 49 4E 49 53 2E 45 44 41 54, npd_cid_fn_hash_omac_key).
-|-
-| 0x60 || NPD Header hash || 0x10 || uint8_t[0x10] || Header hash. AES CMAC hash of the 0x60 bytes from the beginning of the file using (klicensee XOR [[Keys#NPDRM_OMAC_Keys|second NPDRM OMAC key]] as AES-CMAC key.
 |-
-| 0x70 || Activation time || 8 || ?64-bit time or 32-bit padding? || Start of the validity period, filled with 00 if not used.
+! rowspan="10" | Header
 |-
-| 0x78 || Expiration time || 8 || ?64-bit time or 32-bit padding? || End of the validity period, filled with 00 if not used.
+| 0x0 || NPD || 0x80 || PS3_NPD || See [[NPD]].
 |-
-| 0x80 || NPD type || 1 || ?uint8_t? || (separated from Metadata type for wiki format)
+| 0x80 || Type || 1 || ?uint8_t? || (separated from Metadata type for wiki format)
 *00: Finalized EDAT
 *01: Finalized SDAT
@@ Line 60: / Line 40: @@
 *3C: Data/misc?
 |-
-| 0x84 || Segment size || 4 || uint32_t || Default block is 16 KB (16384 bytes) = 0x4000, max is 0x8000.
+| 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.
 |-
 | 0x88 || Data size || 8 || uint64_t || Decoded data size.
 |-
-| 0x90 || Meta data sections hash || 0x10 || uint8_t[0x10] ||
+| 0x90 || Metadata sections hash || 0x10 || uint8_t[0x10] ||
 |-
-| 0xA0 || Extended header hash || 0x10 || uint8_t[0x10] || AES-CMAC hash of 160 bytes from the beginning of file. It uses the hash key as AES-CMAC key and it depends on the file flags and keys. ?What does this mean?
+| 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?
 |-
-| 0xB0 || ECDSA Metadata signature || 0x28 || uint8_t[0x28] || Can be zeroed on forged file. curve_type is vsh type 0x02, pub is vsh public key,
+| 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.
 |-
-| 0xD8 || ECDSA Header signature || 0x28) || uint8_t[0x28] || Enabled (only?) for PS2 classic: all PS3 CFWs are patched to skip the ECDSA check. Can be zeroed on forged file. curve_type is vsh type 2, pub is vsh public key.
+| 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.
 |-
 ! colspan=6 |
@@ Line 76: / Line 56: @@
 ! rowspan="3" | Body
 |-
-| 0x100 || Encrypted file || Variable || uint8_t[variable] || The file is encrypted using an AES algorithm in CBC mode.
+| 0x100 || Encrypted file || Variable || uint8_t[variable] || The file is encrypted using AES128CBC.
 |-
 | 0x** || Padding || Variable || uint8_t[variable] || Aligned on ?? bytes.
@@ Line 107: / Line 87: @@
 = EDAT Versions =
-There are 4 PS3 EDAT format major versions:
+There are 4 PS3 EDAT ?and NPD? format major versions:
 * 1: compatible with SDK 2.1x or older
 * 2: compatible with SDK 3.0x or older
@@ Line 113: / Line 93: @@
 * 4: compatible with SDK ?.?? or older. Certainly supported since some 4.0x FW.
-= EDAT Decryption =
+= EDAT Extraction =
+EDAT decryption, and complete verification, requires Klicensee. See [[NPDRM]].
+= EDAT Generation =
-EDAT decryption requires a key, the licensee key or klicensee. Depending on the DRM type, klicensee is got in different ways:
+To document.
-* DRM type Network: klicensee is generated using rif + ?to detail?
-* DRM type Local: klicensee is generated using act.dat + associated rif + console's IDPS
-* DRM type Free: klicensee is the constant PS3 Free klicensee (see NPDRM [[Keys]] and appldr keys)
 = Tools =

EDAT files: Difference between revisions

Revision as of 00:52, 9 February 2022

Contents

Info on the talk page

Location

Structure (Encrypted Format)

Header

Footer

EDAT Versions

EDAT Extraction

EDAT Generation

Tools

Official tools

make_edata_npdrm version 1.0.0

make_edata_npdrm version 4.0.0.W

Unofficial tools

Navigation menu

EDAT files: Difference between revisions

Revision as of 00:52, 9 February 2022

Info on the talk page

Location

Structure (Encrypted Format)

Header

Footer

EDAT Versions

EDAT Extraction

EDAT Generation

Tools

Official tools

make_edata_npdrm version 1.0.0

make_edata_npdrm version 4.0.0.W

Unofficial tools

Navigation menu

Search