Changes

== Encryption ==  

== Encryption ==  

The icon database is encrypted with AES128 CBC. There's a two byte header:

The icon database is encrypted with AES-128-CBC. There's a two byte header:

0: (unknown, usually zero?)

byte 0: always zero.

1: key index

byte 1: aes key index

followed by encrypted data.

followed by encrypted data.

nn_idbe contains hardcoded keys in one 0x50 sized block, consisting of the 16-byte hardcoded IV, and 4 hardcoded 16-byte AES128 keys.

nn_idbe contains hardcoded keys in one 0x50 sized block (0x10 * 5), consisting of the 16-byte hardcoded IV, and 4 hardcoded 16-byte AES-128 keys.

In version 11464 of OSv11 (000500101000400A), the keys are located at $DATA+0x4c of nn_idbe.rpl.

In OSv12 (000500101000400A), the keys are located at $.rodata+0x4c of nn_idbe.rpl.

 

 

 

== Decrypted icon format ==

== Decrypted icon format ==