Love Live School Idol Festival All Stars ラブライブ！スクールアイドルフェスティバルALL STARS decryption script Must use quickbms_4gb_files.exe also must use command line -n -C example c:\quickbms\quickbms_4gb_files.exe -n -C C:\LL.bms . C:\output_folder
# Love Live School Idol Festival All Stars (script 0.0.1) # by chrrox # script for QuickBMS http://quickbms.aluigi.org # original code from https://gist.github.com/esterTion/ff57aafd8dc950216041ac004fc25536
quickbmsver "0.8.0" set MEMORY_FILE10 string " typedef unsigned char uchar; typedef unsigned int uint;
int ll_decrypt(unsigned char *data, int size, int keys_0, int keys_1, int keys_2) { int i; for(i = 0; i < size; i++) { uchar c = data[i]; data[i] = data[i] ^ (((keys_1 ^ keys_0 ^ keys_2) >> 24) & 0xff); keys_0 = (0x343fd * keys_0 + 0x269ec3) & 0xFFFFFFFF; keys_1 = (0x343fd * keys_1 + 0x269ec3) & 0xFFFFFFFF; keys_2 = (0x343fd * keys_2 + 0x269ec3) & 0xFFFFFFFF; } } " comtype zlib_dynamic
set URLBASE string "https://jp-real-prod-v4tadlicuqeeumke.api.game25.klabgames.net/ep1002/static/f141c313a139e1e6/" open "." "https://jp-real-prod-v4tadlicuqeeumke.api.game25.klabgames.net/ep1002/static/f141c313a139e1e6/masterdata_a_ja" get SIZE asize log MEMORY_FILE 0 SIZE goto 0x14 MEMORY_FILE get NSIZE byte MEMORY_FILE getdstring VERSION NSIZE MEMORY_FILE get NSIZE byte MEMORY_FILE getdstring LANG NSIZE MEMORY_FILE get FILES byte MEMORY_FILE print "%VERSION% %LANG% %FILES%" for i = 0 < files math constKeys_0 = 0x3039 // 12345 math constKeys_1 = 0x10932 // 67890 math constKeys_2 = 0x7AB7 // 31415 set MEMORY_FILE2 "" get NSIZE byte MEMORY_FILE getdstring FNAME NSIZE MEMORY_FILE get NSIZE byte MEMORY_FILE getdstring KEY0 8 MEMORY_FILE getdstring KEY1 8 MEMORY_FILE getdstring KEY2 8 MEMORY_FILE getdstring CRC 16 MEMORY_FILE #print "%FNAME% %KEY0% %KEY1% %KEY2% %CRC%" set TMP string "$" string TMP += KEY0 set KEY0 long TMP
set TMP string "$" string TMP += KEY1 set KEY1 long TMP
set TMP string "$" string TMP += KEY2 set KEY2 long TMP #print "%FNAME% %KEY0% %KEY1% %KEY2% %CRC%" set URL URLBASE string URL + FNAME print "Downloading %URL%" xmath keys_0 "constKeys_0 ^ KEY0" xmath keys_1 "constKeys_1 ^ KEY1" xmath keys_2 "constKeys_2 ^ KEY2" open "." URL get SIZE asize log MEMORY_FILE2 0 SIZE calldll MEMORY_FILE10 "ll_decrypt" "tcc" RET MEMORY_FILE2 SIZE keys_0 keys_1 keys_2 string FNAME + ".sqlite" clog FNAME 0 SIZE SIZE MEMORY_FILE2 next i
I've gone through the .php file https://gist.github.com/esterTion/ff57aafd8dc950216041ac004fc25536 this script based on. If I didn't make it wrong, the .php file and this script ONLY decrypt the .db files of the game. it doesn't have the ability to extract the game assets.
The URL in script seemed not working, so I used the file I dumped from my phone instead. And pity thing is, seems that both the .php file and this script FAILED to decrypt the .db file. When opened them in HxD, the contents still didn't make sense. Is that they changed the encryption key? Or that the script still working but I made something wrong?
Last edited by 1160817830 on Fri Oct 25, 2019 11:10 am, edited 1 time in total.
1160817830 wrote:Thanks for your work on this scripts.
I've gone through the .php file https://gist.github.com/esterTion/ff57aafd8dc950216041ac004fc25536 this script based on. If I didn't make it wrong, the .php file and this script ONLY decrypt the .db files of the game, right? it doesn't have the ability to extract the game assets.
The URL in script seemed not working, so I used the file I dumped from my phone instead. And pity thing is, seems that both the .php file and this script FAILED to decrypt the .db file. When opened them in HxD, the contents still didn't make sense. Is that they changed the encryption key(I noticed constKey in script)? Or that the script still working but I made something wrong?
https://estertion.win/2019/09/sifas/ It seems that the author gave up the plan because of the key change. You are right. This is only applicable to *. DB files. But the author also said that "resource processing and DB are one method, only three manifestkeys ^ constkeys are here, and 12345, key1 and key2 are there, which is equivalent to fixing a key to 12345". I am just a useless person, still expecting to have Finally, please forgive my English, it is not my native language, which is also the credit of translation software.
