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libaibaba, posted Sun Nov 03, 2019 5:23 am (51853)

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First of all, the script in this link is wrong. It doesn't apply to current assetshttps://zenhax.com/viewtopic.php?f=9&t=12638&p=51441&hilit=Project Tokyo Dolls#p51441
When I look at the article, I see this https://estertion.win/2019/03/project-tokyo-dolls-????/
https://gist.github.com/esterTion/6b3fd18e2f67d72fdb6d28c5fe195e8a

This works well, but you need to install related tools that support php7.2 or below, such as wampserver.
Because it only deals with one asset, I made a small change

Code:

//Come from https://gist.github.com/esterTion/6b3fd18e2f67d72fdb6d28c5fe195e8a
$dir = "G://prim/*";
foreach(glob($dir) as $file)
{

$dat = file_get_contents($file);

$key = implode('', array_reverse(str_split(base64_decode('Y2VJOCQpWSNZcyRyNVJGNVd8NFctXzE7Kkw7KVZVenc='), 1)));
$iv  = implode('', array_reverse(str_split(base64_decode('ZTBnJDJuUnAmIWRBUVJXP2pxeCxXPn1FI2ZKRzFEKkw='), 1)));

$head = substr($dat, 0, 0x400);
$body = substr($dat, 0x400);

$headdec = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $head, MCRYPT_MODE_CBC, $iv);

file_put_contents($file, $headdec.$body);
}

I still don't make BMS scripts as usual, sorry?
Finally, as I have always stated, English is not my native language, which depends on translation software. Please forgive me for my English

aluigi, posted Sat Mar 21, 2020 10:00 pm (54910)

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I don't have samples for testing the script but I guess this one may work:

Code:

set KEY string "Y2VJOCQpWSNZcyRyNVJGNVd8NFctXzE7Kkw7KVZVenc="
set IV  string "ZTBnJDJuUnAmIWRBUVJXP2pxeCxXPn1FI2ZKRzFEKkw="

string KEY U KEY
string IV  U IV

get NAME basename

encryption "mcrypt rijndael-256_cbc" KEY IV 0 32
log NAME 0 0x400
get SIZE asize
math SIZE - 0x400
encryption "" ""
append
log NAME 0x400 SIZE
append