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Line 311: − + + + + + + + + + + + + + + + + + + + + + + + + + + + + + − + − + − + − + − + − + − + − Note that a particular flashcard vendor puts what many refer to as "private headers" here in place of actual development card information. This header is constituted by a cartridge-unique Id obtained from [[Process_Services_PXI|pxi:ps9::GetRomId]] and the title-unique cart ID (identical for all carts of the same title; can be retrieved using the NTR gamecard protocol command 0x90 or through the CTR protocol commands 0x90 or 0xA2).+
no edit summary
|-
|-
| 0x208
| 0x208
| 0x108
| 0xF8
| Reserved1
| Reserved
|-
| 0x300
| 4
| Filled size of cartridge
|-
| 0x304
| 0xC
| Reserved
|-
|-
| 0x310
| 0x310
| Card revision
| Card revision
|-
|-
| 0x208
| 0x314
| 0xCEE
| 0xC
| Reserved2
| Reserved
|-
| 0x320
| 8
| Title ID of [[CVer]] in included update partition
|-
| 0x328
| 2
| Version number of [[CVer]] in included update partition
|-
| 0x32A
| 0xCD6
| Reserved
|}
== Development Card Info Header Extension ==
{| class="wikitable" border="1"
|-
! OFFSET
! SIZE
! DESCRIPTION
|-
|-
| 0x1000
| 0x1000
| 0x200
| InitialData
|-
| 0x1200
| 0x200
| CardDeviceReserved1
|-
| 0x1400
| 0x10
| TitleKeyData
|-
| 0x1410
| 0x1BF0
| CardDeviceReserved2
|-
| 0x3000
| 0x1000
| TestData
|}
TitleKeyData contains the decrypted version of the title key found in the InitialData. This field appears to be what development--and maybe production?--cards read to know what card encryption seed to use in the CTR protocol.
The CardDeviceReserved areas have random-looking data whose purpose is unknown, other than perhaps to hide the TitleKey.
Note that a particular flashcard vendor puts what many refer to as "private headers" here in place of actual development card information. This header is constituted by a cartridge-unique ID obtained from [[Process_Services_PXI|pxi:ps9::GetRomId]] and the title-unique cart ID (identical for all carts of the same title; can be retrieved using the NTR gamecard protocol command 0x90 or through the CTR protocol commands 0x90 or 0xA2).
=== InitialData ===
{| class="wikitable" border="1"
|-
! OFFSET
! SIZE
! DESCRIPTION
|-
| 0x0
| 0x10
| 0x10
| Card seed keyY (first u64 is Media ID (same as first NCCH partitionId))
| Seed (keyY used to decrypt the title key - keyX is keyslot 0x3B for production cards, or a key of all zeroes for development cards)
|-
|-
| 0x10
| 0x10
| Encrypted card seed (AES-CCM, keyslot 0x3B for retail cards, see [[CTRCARD_Registers|CTRCARD_SECSEED]])
| 0x10
| TitleKey (AES-CCM encrypted)
|-
|-
| 0x1020
| 0x20
| 0x10
| 0x10
| Card seed AES-MAC
| Mac
|-
|-
| 0x1030
| 0x30
| 0xC
| 0xC
| Card seed nonce
| Nonce
|-
|-
| 0x103C
| 0x3C
| 0xC4
| 0xC4
| Reserved3
| Reserved
|-
|-
| 0x100
| 0x100
| Copy of first NCCH header (excluding RSA signature)
| 0x100
| NcchHeader (copy of the first NCCH header, excluding the RSA signature)
|}
|}
== Development Card Info Header Extension ==
=== TestData ===
The test data is the same one encountered in development DS/DSi cartridges. Its layout is as follows:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
! DESCRIPTION
! DESCRIPTION
|-
|-
| 0x1200
| 0x0
| 0x8
| The bytes FF 00 FF 00 AA 55 AA 55.
|-
| 0x8
| 0x1F8
| An ascending byte sequence equal to the offset mod 256 (08 09 0A ... FE FF 00 01 ... FF).
|-
| 0x200
| 0x200
| A descending byte sequence equal to 255 minus the offset mod 256 (FF FE FD ... 00 FF DE ... 00).
|-
| 0x400
| 0x200
| Filled with 00 (0b00000000) bytes.
|-
| 0x600
| 0x200
| Filled with FF (0b11111111) bytes.
|-
| 0x800
| 0x200
| Filled with 0F (0b00001111) bytes.
|-
| 0xA00
| 0x200
| Filled with F0 (0b11110000) bytes.
|-
| 0xC00
| 0x200
| 0x200
| CardDeviceReserved1
| Filled with 55 (0b01010101) bytes.
|-
|-
| 0x1400
| 0xE00
| 0x10
| 0x1FF
| TitleKey
| Filled with AA (0b10101010) bytes.
|-
|-
| 0x1410
| 0xFFF
| 0xF0
| 0x1
| CardDeviceReserved2
| The final byte is 00 (0b00000000).
|}
|}
Production cards always return FF when attempting to read 0x1200-0x3FFF. They probably actually have the same data as development cards, but there's no way to read it.
== Tools ==
== Tools ==