String.i3pack encoding/encryption

[just_me]

just dump string.i3pack (Garena PBID GAME VER : 1.15.42.171114007) file to edit some text and found it was encoded/encrypted, if someone more familiar or experienced can tell what kind of encoding/encryption uses so it can read as plain text, that would be a big help

file attached:

[Sojang]

https://forum.zone-game.info/showthread.php?t=39792


This should help you.

[Awiion]

just_me,
Code Link

[just_me]

https://forum.zone-game.info/showthread.php?t=39792


This should help you.

just_me,
Code Link

thanks to both of you guys
took me a couple hours to understand, but it's worth it

[just_me]

ok i admit it... i need more help :redlol:
i'm too exited, but please "bear with me", im here to learn

i change my last code and use this

code

Код:

public static void Main(string[] args)
        {
                       // [color=Red]BAD CODE, DON'T TRY IT ![/color]

            byte[] bin;
            string inputFilename = @"E:\Goods_Indonesia.txt";
            using (FileStream fs = new FileStream(inputFilename,FileMode.Open))
            using (BinaryReader br = new BinaryReader(fs))
            {
                bin = br.ReadBytes(Convert.ToInt32(fs.Length));
            }

            for (var i = 0; i < bin.Length; i += 2048)
            {
                Unshift(bin, i, 3);
            }

            Process.GetCurrentProcess().WaitForExit();
        }

       public static void Unshift(byte[] buffer, int start, int bits)
       {
           int length = buffer.Length - start;
           byte last = buffer[length - 1];
           byte current;

           for (int i = length - 1; (i & 0x80000000) == 0; i--)
           {
               if (i <= 0)
               {
                   current = last;
               }
               else
               {
                   current = buffer[i - 1];
               }
               buffer[i] = (byte)(current << (8 - bits) | buffer[i] >> bits);
           }
              Console.WriteLine(Encoding.UTF8.GetString(buffer));
       }

hoping it would be faster than the last one, but same result and most of the times it freeze my computer if i open bigger file, googling for hours and can't find an answer (wrong keyword perhaps)

any advice is greatly appreciated,

[just_me]

UPDATE : save it as a file is more efficient rather than read it straight from console

[PROGRAMMATOR]

Try like this:

[SRC="csharp"]private static void Unshift(IList<byte> data, int start, int length, int bits)
{
var to = start + length;

if (data.Count < to) to = data.Count;

var last = data[to - 1];

for (var i = to - 1; i >= start; i--)
{
var current = i <= start ? last : data[i - 1];

data[i] = (byte) ((current << (8 - bits)) | (data[i] >> bits));
}
}
[/SRC]


And try:

[SRC="csharp"]// ...
Unshift(bin, i, 2048, 3);
// ...
[/SRC]


Goods_Indonesia.txt was proceed during 0,0524851s.

[just_me]

...

[just_me]

Try like this:

^thanks for the update

so i decide to share it here in case someone need it, add some "cosmetic" just to make it look more user friendly

virus scan : VirusTotal

[Lang]

thanks for the tools