JavaScript emoticon package encryption

  • after reading this article you may feel that you know nothing about the power of JavaScript!
  • let’s see what kind of encryption this is!
  • is the author of the encryption: from Japan Yosuke HASEGAWA
  • his project address: http://utf-8.jp/public/aaencode.html

    we encrypt a string of JS code with this method: alert(” HelloWorld! );

    function aaencode( text )
    {
        var t;
        var b = [
    		"(c^_^o)",
    		"(゚Θ゚)",
    		"((o^_^o) - (゚Θ゚))",
    		"(o^_^o)",
    		"(゚ー゚)",
    		"((゚ー゚) + (゚Θ゚))",
    		"((o^_^o) +(o^_^o))",
    		"((゚ー゚) + (o^_^o))",
    		"((゚ー゚) + (゚ー゚))",
    		"((゚ー゚) + (゚ー゚) + (゚Θ゚))",
    		"(゚Д゚) .゚ω゚ノ",
    		"(゚Д゚) .゚Θ゚ノ",
    		"(゚Д゚) ['c']",
    		"(゚Д゚) .゚ー゚ノ",
    		"(゚Д゚) .゚Д゚ノ",
    		"(゚Д゚) [゚Θ゚]"
            ];
    	var r = "゚ω゚ノ= /`m´)ノ ~┻━┻   //*´∇`*/ ['_']; o=(゚ー゚)  =_=3; c=(゚Θ゚) =(゚ー゚)-(゚ー゚); "; 
    	
    	if( /ひだまりスケッチ×(365|356)\s*来週も見てくださいね[!!]/.test( text ) ){
    		r += "X=_=3; ";
    		r += "\r\n\r\n    X/_/X < \"来週も見てくださいね!\";\r\n\r\n";
    	}
        r += "(゚Д゚) =(゚Θ゚)= (o^_^o)/ (o^_^o);"+
            "(゚Д゚)={゚Θ゚: '_' ,゚ω゚ノ : ((゚ω゚ノ==3) +'_') [゚Θ゚] "+
            ",゚ー゚ノ :(゚ω゚ノ+ '_')[o^_^o -(゚Θ゚)] "+
            ",゚Д゚ノ:((゚ー゚==3) +'_')[゚ー゚] }; (゚Д゚) [゚Θ゚] =((゚ω゚ノ==3) +'_') [c^_^o];"+
            "(゚Д゚) ['c'] = ((゚Д゚)+'_') [ (゚ー゚)+(゚ー゚)-(゚Θ゚) ];"+
            "(゚Д゚) ['o'] = ((゚Д゚)+'_') [゚Θ゚];"+
            "(゚o゚)=(゚Д゚) ['c']+(゚Д゚) ['o']+(゚ω゚ノ +'_')[゚Θ゚]+ ((゚ω゚ノ==3) +'_') [゚ー゚] + "+
            "((゚Д゚) +'_') [(゚ー゚)+(゚ー゚)]+ ((゚ー゚==3) +'_') [゚Θ゚]+"+
            "((゚ー゚==3) +'_') [(゚ー゚) - (゚Θ゚)]+(゚Д゚) ['c']+"+
            "((゚Д゚)+'_') [(゚ー゚)+(゚ー゚)]+ (゚Д゚) ['o']+"+
            "((゚ー゚==3) +'_') [゚Θ゚];(゚Д゚) ['_'] =(o^_^o) [゚o゚] [゚o゚];"+
            "(゚ε゚)=((゚ー゚==3) +'_') [゚Θ゚]+ (゚Д゚) .゚Д゚ノ+"+
            "((゚Д゚)+'_') [(゚ー゚) + (゚ー゚)]+((゚ー゚==3) +'_') [o^_^o -゚Θ゚]+"+
            "((゚ー゚==3) +'_') [゚Θ゚]+ (゚ω゚ノ +'_') [゚Θ゚]; "+
            "(゚ー゚)+=(゚Θ゚); (゚Д゚)[゚ε゚]='\\\\'; "+
            "(゚Д゚).゚Θ゚ノ=(゚Д゚+ ゚ー゚)[o^_^o -(゚Θ゚)];"+ 
    		"(o゚ー゚o)=(゚ω゚ノ +'_')[c^_^o];"+//TODO
            "(゚Д゚) [゚o゚]='\\\"';"+ 
            "(゚Д゚) ['_'] ( (゚Д゚) ['_'] (゚ε゚+";
        r += "(゚Д゚)[゚o゚]+ ";
        for( var i = 0; i < text.length; i++ ){
            n = text.charCodeAt( i );
            t = "(゚Д゚)[゚ε゚]+";
    		if( n <= 127 ){
    			t += n.toString( 8 ).replace( /[0-7]/g, function(c){ return b[ c ] + "+ "; } );
    		}else{
    			var m = /[0-9a-f]{4}$/.exec( "000" + n.toString(16 ) )[0];
    			t += "(o゚ー゚o)+ " + m.replace( /[0-9a-f]/gi, function(c){ return b[ parseInt( c,16 ) ] + "+ "; } );
    		}
            r += t;
    
        }
        r += "(゚Д゚)[゚o゚]) (゚Θ゚)) ('_');";
        return r;
    }
    

    yes we got a bunch of cute memes!!

    ゚ω゚ノ= /`m´)ノ ~┻━┻   //*´∇`*/ ['_']; o=(゚ー゚)  =_=3; c=(゚Θ゚) =(゚ー゚)-(゚ー゚); (゚Д゚) =(゚Θ゚)= (o^_^o)/ (o^_^o);(゚Д゚)={゚Θ゚: '_' ,゚ω゚ノ : ((゚ω゚ノ==3) +'_') [゚Θ゚] ,゚ー゚ノ :(゚ω゚ノ+ '_')[o^_^o -(゚Θ゚)] ,゚Д゚ノ:((゚ー゚==3) +'_')[゚ー゚] }; (゚Д゚) [゚Θ゚] =((゚ω゚ノ==3) +'_') [c^_^o];(゚Д゚) ['c'] = ((゚Д゚)+'_') [ (゚ー゚)+(゚ー゚)-(゚Θ゚) ];(゚Д゚) ['o'] = ((゚Д゚)+'_') [゚Θ゚];(゚o゚)=(゚Д゚) ['c']+(゚Д゚) ['o']+(゚ω゚ノ +'_')[゚Θ゚]+ ((゚ω゚ノ==3) +'_') [゚ー゚] + ((゚Д゚) +'_') [(゚ー゚)+(゚ー゚)]+ ((゚ー゚==3) +'_') [゚Θ゚]+((゚ー゚==3) +'_') [(゚ー゚) - (゚Θ゚)]+(゚Д゚) ['c']+((゚Д゚)+'_') [(゚ー゚)+(゚ー゚)]+ (゚Д゚) ['o']+((゚ー゚==3) +'_') [゚Θ゚];(゚Д゚) ['_'] =(o^_^o) [゚o゚] [゚o゚];(゚ε゚)=((゚ー゚==3) +'_') [゚Θ゚]+ (゚Д゚) .゚Д゚ノ+((゚Д゚)+'_') [(゚ー゚) + (゚ー゚)]+((゚ー゚==3) +'_') [o^_^o -゚Θ゚]+((゚ー゚==3) +'_') [゚Θ゚]+ (゚ω゚ノ +'_') [゚Θ゚]; (゚ー゚)+=(゚Θ゚); (゚Д゚)[゚ε゚]='\\'; (゚Д゚).゚Θ゚ノ=(゚Д゚+ ゚ー゚)[o^_^o -(゚Θ゚)];(o゚ー゚o)=(゚ω゚ノ +'_')[c^_^o];(゚Д゚) [゚o゚]='\"';(゚Д゚) ['_'] ( (゚Д゚) ['_'] (゚ε゚+(゚Д゚)[゚o゚]+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ (゚ー゚)+ (゚Θ゚)+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ ((゚ー゚) + (゚Θ゚))+ (゚ー゚)+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ (゚ー゚)+ ((゚ー゚) + (゚Θ゚))+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ ((o^_^o) +(o^_^o))+ ((o^_^o) - (゚Θ゚))+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ ((o^_^o) +(o^_^o))+ (゚ー゚)+ (゚Д゚)[゚ε゚]+((゚ー゚) + (゚Θ゚))+ (c^_^o)+ (゚Д゚)[゚ε゚]+(゚ー゚)+ ((o^_^o) - (゚Θ゚))+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ (゚Θ゚)+ (c^_^o)+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ (゚ー゚)+ ((゚ー゚) + (゚Θ゚))+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ ((゚ー゚) + (゚Θ゚))+ (゚ー゚)+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ ((゚ー゚) + (゚Θ゚))+ (゚ー゚)+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ ((゚ー゚) + (゚Θ゚))+ ((゚ー゚) + (o^_^o))+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ ((o^_^o) - (゚Θ゚))+ ((゚ー゚) + (o^_^o))+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ ((゚ー゚) + (゚Θ゚))+ ((゚ー゚) + (o^_^o))+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ ((o^_^o) +(o^_^o))+ ((o^_^o) - (゚Θ゚))+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ ((゚ー゚) + (゚Θ゚))+ (゚ー゚)+ (゚Д゚)[゚ε゚]+(゚Θ゚)+ (゚ー゚)+ (゚ー゚)+ (゚Д゚)[゚ε゚]+(゚ー゚)+ (゚Θ゚)+ (゚Д゚)[゚ε゚]+(゚ー゚)+ ((o^_^o) - (゚Θ゚))+ (゚Д゚)[゚ε゚]+((゚ー゚) + (゚Θ゚))+ (゚Θ゚)+ (゚Д゚)[゚ε゚]+((゚ー゚) + (o^_^o))+ (o^_^o)+ (゚Д゚)[゚o゚]) (゚Θ゚)) ('_');
    

    however, these memes are not as cute as you might think, and they are just as damaging!!

    his corresponding decryption method is

    function decrypt (text) {
    	var evalPreamble = "(\uFF9F\u0414\uFF9F) ['_'] ( (\uFF9F\u0414\uFF9F) ['_'] (";
    	var decodePreamble = "( (\uFF9F\u0414\uFF9F) ['_'] (";
    	var evalPostamble = ") (\uFF9F\u0398\uFF9F)) ('_');";
    	var decodePostamble = ") ());";
    
    	// strip beginning/ending space.
    	text = text.replace(/^\s*/, "").replace(/\s*$/, "");
    
    	// returns empty text for empty input.
    	if (/^\s*$/.test(text)) {
    		return "";
    	}
    	// check if it is encoded.
    	if (text.lastIndexOf(evalPreamble) < 0) {
    		throw new Error("Given code is not encoded as aaencode.");
    	}
    	if (text.lastIndexOf(evalPostamble) != text.length - evalPostamble.length) {
    		throw new Error("Given code is not encoded as aaencode.");
    	}
    
    	var decodingScript = text.replace(evalPreamble, decodePreamble)
    							 .replace(evalPostamble, decodePostamble);
    	return eval(decodingScript);
    }
    

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