Titles: Difference between revisions

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"'''<ContentID>.cmd'''" - (The Content ID is a u32, initially: '''00000001''' when the title is first installed. Changing by an increment of +'''0x1''' for each time the 3DS adds/removes '.app' files) This file contains data taken from the title's [[TMD]]. See the below table for the format of the cleartext .cmd file. The [[Title Database|Title.db]] contains the Content ID for the '.cmd' file, but does not contain a hash of the '.cmd' file. In addition it is also encrypted with a console-unique [[AES|keyslot]]. This acts as part of the DRM for installed titles, along with the [[Title Database|title.db]].

The below AES-MACs(including the last 0x10-bytes of the header) are only used for SD titles, and for NAND [[Title_list|download-play]] titles. For other titles, these MACs are set to all-zero.

{| class="wikitable" border="1"

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| 0x4

| 0x1C

| For NAND titles' .cmd these 2 words are usually value 1, the rest of the header is all-zero. ~~For SD titles the~~ last 0x10-bytes of this header is an AES MAC?

| For NAND titles' .cmd these 2 words are usually value 1, the rest of the header is all-zero. The last 0x10-bytes of this header is an AES MAC?

|-

| 0x20

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| 0x20+0x8*(No. of entries)

| 0x10*(No. of entries)

| These are MACs, one for each content~~. These MACs are only stored in .cmd for SD titles~~.

| These are MACs, one for each content.

|}

@@ Line 89: / Line 89: @@
 "'''<ContentID>.cmd'''" - (The Content ID is a u32, initially: '''00000001''' when the title is first installed. Changing by an increment of +'''0x1''' for each time the 3DS adds/removes '.app' files) This file contains data taken from the title's [[TMD]]. See the below table for the format of the cleartext .cmd file. The [[Title Database|Title.db]] contains the Content ID for the '.cmd' file, but does not contain a hash of the '.cmd' file. In addition it is also encrypted with a console-unique [[AES|keyslot]]. This acts as part of the DRM for installed titles, along with the [[Title Database|title.db]].
+The below AES-MACs(including the last 0x10-bytes of the header) are only used for SD titles, and for NAND [[Title_list|download-play]] titles. For other titles, these MACs are set to all-zero.
 {| class="wikitable" border="1"
@@ Line 102: / Line 104: @@
 | 0x4
 | 0x1C
-| For NAND titles' .cmd these 2 words are usually value 1, the rest of the header is all-zero. For SD titles the last 0x10-bytes of this header is an AES MAC?
+| For NAND titles' .cmd these 2 words are usually value 1, the rest of the header is all-zero. The last 0x10-bytes of this header is an AES MAC?
 |-
 | 0x20
@@ Line 110: / Line 112: @@
 | 0x20+0x8*(No. of entries)
 | 0x10*(No. of entries)
-| These are MACs, one for each content. These MACs are only stored in .cmd for SD titles.
+| These are MACs, one for each content.
 |}