IDBE
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IDBE is Nintendo's title icon database. Entries contain title icon, region, and name (in various languages). Similar to the SMDH. All game titles are on the server (excluding DSiWare?), including demos and updates.
URLs
https://idbe-ctr.cdn.nintendo.net/icondata/%02X/%016llX.idbe
https://idbe-ctr.cdn.nintendo.net/icondata/%02X/%016llX-%d.idbe
%02X seems to always be 0x10 (?)
%016llX is the title id.
%d is an optional title version.
Encryption
The icon database is encrypted with AES-128 CBC. All icons use the same IV and one of 4 possible keys (as specified by the key index in the header).
The IV/keys are hardcoded in the friend list applet. They are also on the WiiU.
Data
| Offset | Size | Description |
| 0x0 | 0x1 | ? (usually zero) |
| 0x1 | 0x1 | Key index |
| 0x2 | 0x36D0 | Encrypted data |
Encrypted Data
Icon data is uncompressed RGB565.
| Offset | Size | Description |
| 0x0 | 0x20 | SHA256 hash |
| 0x20 | 0x10 | ? |
| 0x30 | 0x4 | Region lockout (u32 little endian) |
| 0x34 | 0x1C | ? |
| 0x50 + i * 0x200 | 0x200 | Title struct where i = language index |
| 0x2050 | 0x480 | 24x24 Icon data |
| 0x24D0 | 0x1200 | 48x48 Icon data |