Extdata: Difference between revisions

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This page describes the format and crypto of extdata, "extra data" and StreetPass data stored on [[SD_Filesystem|SD card]].

At /Nintendo 3DS/<SomeID>/<SomeID>/extdata/00000000 is directories for each title~~, with~~ Quota.~~dat inside each~~ dir~~. Quota.dat doesn't exist for~~ all titles. Then there's a sub-directory 00000000, which contains the actual extdata. Size and number of files in this dir varies per title.

At /Nintendo 3DS/<SomeID>/<SomeID>/extdata/00000000 is directories for each title. Some titles have Quota.dir is stored in these directories, not all titles use it. Then there's a sub-directory 00000000, which contains the actual extdata. Size and number of files in this dir varies per title.

=== Encryption ===

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Most extdata uses the same FS as [[savegames]], except extdata uses [[Savegames|DIFF]] instead of DISA. However some extdata files are raw, without any FS.

Quota.dat ~~seems to use~~ the same ~~FS and~~ encryption as the ~~actual~~ extdata?

Quota.dat uses the same encryption as extdata, but it's unknown whether data is stored raw or with the FS extdata uses.

'''QUOT'''

* This seems to be stored in ~~the~~ Quota.dat ~~FS image~~ somewhere?

* This seems to be stored in Quota.dat somewhere?

{| class="wikitable"

@@ Line 1: / Line 1: @@
 This page describes the format and crypto of extdata, "extra data" and StreetPass data stored on [[SD_Filesystem|SD card]].
-At /Nintendo 3DS/<SomeID>/<SomeID>/extdata/00000000 is directories for each title, with Quota.dat inside each dir. Quota.dat doesn't exist for all titles. Then there's a sub-directory 00000000, which contains the actual extdata. Size and number of files in this dir varies per title.
+At /Nintendo 3DS/<SomeID>/<SomeID>/extdata/00000000 is directories for each title. Some titles have Quota.dir is stored in these directories, not all titles use it. Then there's a sub-directory 00000000, which contains the actual extdata. Size and number of files in this dir varies per title.
 === Encryption ===
@@ Line 9: / Line 9: @@
 Most extdata uses the same FS as [[savegames]], except extdata uses [[Savegames|DIFF]] instead of DISA. However some extdata files are raw, without any FS.
-Quota.dat seems to use the same FS and encryption as the actual extdata?
+Quota.dat uses the same encryption as extdata, but it's unknown whether data is stored raw or with the FS extdata uses.
 '''QUOT'''
-* This seems to be stored in the Quota.dat FS image somewhere?
+* This seems to be stored in Quota.dat somewhere?
 {| class="wikitable"