Skip to content
This repository has been archived by the owner on Apr 25, 2022. It is now read-only.

JAST ver 1.00 English Song of Saya #175

Open
wants to merge 2 commits into
base: master
Choose a base branch
from

Conversation

deathzombee
Copy link

plugin added based on AES 256 observed in process
Compiled and decrypts

font.npk
script.npk
system.npk
voice.npk

Invalid byte sequence on all other .npk in folder

[000000000114EC20] Found AES-256 decryption key: d0b71f3c4e24cecfddeea91d24b0403229a3e5330d2951826051d6c94af5af54
[000000000356BABC] Found AES-128 encryption key: 300100000700000058ac000058ac0000
[000000000356BB5C] Found AES-128 decryption key: 300100000700000058ac000058ac0000
[000000000375BB0C] Found AES-128 encryption key: 300100000700000058ac000058ac0000
[000000000375BBAC] Found AES-128 decryption key: 300100000700000058ac000058ac0000
[000000000B77F390] Found AES-256 decryption key: d0b71f3c4e24cecfddeea91d24b0403229a3e5330d2951826051d6c94af5af54

This works on copies bought directly from JAST, the Steam release shows this aes 256 key, and did not decrypt when compiled. 
[00000000009DED50] Found AES-256 decryption key: 763a14338b0dac040accfc13851cfacbb20b000b01f868486b460f8c34d42a96
[0000000003C0419C] Found AES-128 encryption key: 300100000700000058ac000058ac0000
[0000000003C0423C] Found AES-128 decryption key: 300100000700000058ac000058ac0000
[00000000090471DC] Found AES-128 encryption key: 300100000700000058ac000058ac0000
[000000000904727C] Found AES-128 decryption key: 300100000700000058ac000058ac0000
[000000000C34F400] Found AES-256 decryption key: 763a14338b0dac040accfc13851cfacbb20b000b01f868486b460f8c34d42a96
Saya no Uta JAST English support added.
@deathzombee
Copy link
Author

at least as far as I have tested the files
font.npk
script.npk
system.npk
voice.npk
use the iv: 00000000000000000000000000000000
and the files
cg.npk
N4_sys.npk
sound.npk

they use the iv: 300100000700000058ac000058ac0000

Sign up for free to subscribe to this conversation on GitHub. Already have an account? Sign in.
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

1 participant