how can I find the Decrypt-Code if it's not in System.json

[frostylight]

it told me that "Please try to select the rpg_core(.js) file and try again" but it also told me that "Error: File-Content was invalid (Was not a JSON-File)"

[frostylight]

it seems that the Decrypt-Code isn't in rpg_core.js either

[Petschko]

It can vary from game to game... Please provide more information about the game such as name etc and send these both files, so we can ensure its not just a bug in my System.

Please Provide:

• Game Title
• Both files

[frostylight]

I read your scripts,and it's not a bug in your System. I just download a game that used different way to encrypt. I will try different methods later. Thanks for your reply,I am sorry to bother you

Now I know that the maker has hidden the key in a puzzle :)427 lines of codes

[Petschko]

If you want, you can give me the game and I debug this game for you, should be 2min then you get the key^^

I wonder why they put in so much effort to protect the files, since it's JavaScript its ultra easy to get the key anyway ^^

[frostylight]

I aslo wonder why this maker protect the files which he/she found on the Internet and consider
them as his/her own works. To my surprise,it seems that each file has different key. Look this

Decrypter.decryptImg = function(url, bitmap) {
    url = this.extToEncryptExt(url);
//Now,url=img/xxx/xxxx.rpgmvp
    var requestFile = new XMLHttpRequest();
    requestFile.open("GET", url);
    requestFile.responseType = "arraybuffer";
    requestFile.send();

    requestFile.onload = function () {
        if(this.status < Decrypter._xhrOk) {
            var arrayBuffer = Decrypter.decryptArrayBuffer(requestFile.response);
//For each file,the ArrayBuffer is different.
            bitmap._image.src = Decrypter.createBlobUrl(arrayBuffer);           
            bitmap._image.onload = Bitmap.prototype._onLoad.bind(bitmap);
            bitmap._image.onerror = Bitmap.prototype._onError.bind(bitmap);
        }
    };
};

Maybe I should learn JavaScript later

[Petschko]

Thats the normal decryption method (from RPG-Maker)

If you like me to check let me know the Name of the Game~ If you want to have it private you can also write me a E-Mail to peter@petschko.org ^^

//For each file,the ArrayBuffer is different.

Yes the Array-Buffer is the file content, its natural that it is different for each file =)

[frostylight]

Decrypter.decryptArrayBuffer = function(arrayBuffer) {
    if (!arrayBuffer) return null;
    var header = new Uint8Array(arrayBuffer, 0, this._headerlength);

    var i;
    var ref = this.SIGNATURE + this.VER + this.REMAIN;
    var refBytes = new Uint8Array(16);
    for (i = 0; i < this._headerlength; i++) {
        refBytes[i] = parseInt("0x" + ref.substr(i * 2, 2), 16);
    }
    for (i = 0; i < this._headerlength; i++) {
        if (header[i] !== refBytes[i]) {
            throw new Error("Header is wrong");
        }
    }

    arrayBuffer = this.cutArrayHeader(arrayBuffer, Decrypter._headerlength);
    var view = new DataView(arrayBuffer);

    if (arrayBuffer) {
this.f_DRILLup(view,arrayBuffer);
this.f_dRillUp(view,arrayBuffer);
this.f_dRilLup(view,arrayBuffer);
this.f_dRiLluP(view,arrayBuffer);
this.f_DriLLuP(view,arrayBuffer);
this.f_drIlLUp(view,arrayBuffer);
this.f_DRiLlUp(view,arrayBuffer);
this.f_DrILlup(view,arrayBuffer);
this.f_dRIllup(view,arrayBuffer);
this.f_DrilLup(view,arrayBuffer);
this.f_drilLup(view,arrayBuffer);
this.f_DrIllUp(view,arrayBuffer);
this.f_dRILLUp(view,arrayBuffer);
this.f_drillup(view,arrayBuffer);
this.f_dRiLLuP(view,arrayBuffer);
this.f_dRIlLup(view,arrayBuffer);
this.f_DrILluP(view,arrayBuffer);
this.f_DRiLLUp(view,arrayBuffer);
this.f_driLLUp(view,arrayBuffer);
this.f_DRilLup(view,arrayBuffer);
this.f_DrillUp(view,arrayBuffer);
this.f_drIlluP(view,arrayBuffer);
this.f_dRIlLUp(view,arrayBuffer);
this.f_DRiLLuP(view,arrayBuffer);
this.f_dRiLLUp(view,arrayBuffer);
this.f_drILLuP(view,arrayBuffer);
this.f_DRIlluP(view,arrayBuffer);
this.f_DRILlup(view,arrayBuffer);
this.f_dRiLLup(view,arrayBuffer);
this.f_driLlup(view,arrayBuffer);
this.f_drILLup(view,arrayBuffer);
this.f_DRiLluP(view,arrayBuffer);
this.f_driLLup(view,arrayBuffer);
this.f_drIllUp(view,arrayBuffer);
this.f_DRilluP(view,arrayBuffer);
this.f_DrILlUp(view,arrayBuffer);
this.f_DRIlLUp(view,arrayBuffer);
this.f_drillUp(view,arrayBuffer);
this.f_DrIllup(view,arrayBuffer);
this.f_DrILLUp(view,arrayBuffer);
this.f_DRIllup(view,arrayBuffer);
this.f_drIlLup(view,arrayBuffer);
this.f_dRILlup(view,arrayBuffer);
this.f_DrIlLuP(view,arrayBuffer);
this.f_drilLuP(view,arrayBuffer);
this.f_drIllup(view,arrayBuffer);
this.f_DrIlLUp(view,arrayBuffer);
this.f_DRiLlup(view,arrayBuffer);
this.f_DRilLUp(view,arrayBuffer);
this.f_dRIllUp(view,arrayBuffer);
this.f_dRiLlUp(view,arrayBuffer);
this.f_DrILLup(view,arrayBuffer);
this.f_DrilluP(view,arrayBuffer);
this.f_dRIlluP(view,arrayBuffer);
this.f_dRIlLuP(view,arrayBuffer);
this.f_drILluP(view,arrayBuffer);
this.f_DRiLLup(view,arrayBuffer);
this.f_DRILluP(view,arrayBuffer);
this.f_DrillUP(view,arrayBuffer);
this.f_DrILLuP(view,arrayBuffer);
this.f_DRILLUp(view,arrayBuffer);
this.f_Drillup(view,arrayBuffer);
this.f_drilluP(view,arrayBuffer);
this.f_dRillup(view,arrayBuffer);
this.f_DriLluP(view,arrayBuffer);
this.f_DriLLUp(view,arrayBuffer);
this.f_drIlLuP(view,arrayBuffer);
this.f_driLlUp(view,arrayBuffer);
this.f_DRillUP(view,arrayBuffer);
this.f_DrilLuP(view,arrayBuffer);
this.f_dRILlUp(view,arrayBuffer);
this.f_DRilLuP(view,arrayBuffer);
this.f_dRiLlup(view,arrayBuffer);
this.f_dRilLUp(view,arrayBuffer);
this.f_DrIlluP(view,arrayBuffer);
this.f_DRillup(view,arrayBuffer);
this.f_DRillUp(view,arrayBuffer);
this.f_DRIllUp(view,arrayBuffer);
this.f_dRILLuP(view,arrayBuffer);
this.f_drILLUp(view,arrayBuffer);
this.f_dRILluP(view,arrayBuffer);
this.f_driLLuP(view,arrayBuffer);
this.f_dRILLup(view,arrayBuffer);
this.f_DRIlLuP(view,arrayBuffer);
this.f_dRillUP(view,arrayBuffer);
this.f_DRILlUp(view,arrayBuffer);
this.f_DRILLuP(view,arrayBuffer);
this.f_DriLlup(view,arrayBuffer);
this.f_DriLLup(view,arrayBuffer);
this.f_DrilLUp(view,arrayBuffer);
this.f_dRilLuP(view,arrayBuffer);
this.f_dRilluP(view,arrayBuffer);
this.f_DrIlLup(view,arrayBuffer);
this.f_drillUP(view,arrayBuffer);
this.f_drILlUp(view,arrayBuffer);
this.f_drilLUp(view,arrayBuffer);
this.f_DRIlLup(view,arrayBuffer);
this.f_drILlup(view,arrayBuffer);
this.f_driLluP(view,arrayBuffer);
this.f_DriLlUp(view,arrayBuffer);

    }
    return arrayBuffer;
};

just like a puzzle

[frostylight]

For some difficult encrypt files,we could copy the function from rpg_core.js(game) to Decrypter.js. But it takes too long to decrypt files in each folders

[Petschko]

I cant help here since i dont have the game^^

[frostylight]

I cant help here since i dont have the game^^

I solve the problem by myself , just copy the funtion from the game but can we decrypt all files in different folders ? so that it would be more convenient

[Petschko]

You cant do this, a Website/HTML-Document doesn't have access to your File-System. You can only select multiple Files inside a Folder but can't process a File-Tree.

[frostylight]

what a pity. all in all ,thanks a lot.

[david12345-code]

hey can you decrypt this game for me? https://www.dropbox.com/s/itpz8bkupvzhlfz/STV_MonsterCards-DEMO.rar?dl=0&file_subpath=%2FSTV_MonsterCards-DEMO%2FMonsterCards+DEMO

[frostylight]

hey can you decrypt this game for me? https://www.dropbox.com/s/itpz8bkupvzhlfz/STV_MonsterCards-DEMO.rar?dl=0&file_subpath=%2FSTV_MonsterCards-DEMO%2FMonsterCards+DEMO

I can't visit the website because it's limited in my country,sorry maybe you should open a new issues or just send it to Petschko

[Petschko]

Please try the "No-Key" solution in my Website, if you are only interested in the images:

https://petschko.org/tools/mv_decrypter/#restore-images

If you can't visit my Website due to GEO-Restriction, you can also Download this Project and use it offline on your PC, it also has the No-Key solution (Images only)