Posted on 2011-10-20
Last Modified: 2012-05-12

I'm begining with and i have one question please.

I was looking the source code of one page and one there is one image with src like this :

< img id="Logo" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEYAAAAcCAYAAADcO8kVAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAADHdJREFUeNrsWQl0VNUZvve9NzNJJpnsIkuEJMoqAVJAodCKoFUsAUFQqhig0npaRUE8Viv1FFtQWxSwLXVhEawbhOWobOICFCGiEIIQRGIgCSFjMslsb9567+1/Z+7gmIYKVivt6Ztzz5y5b+7yf//3f/9/38PoW7gYY+i7uDDG39heJfT/q91LGTiTIcWJkCxzxDmCCBGCkBEOFDCm5CPs+CGWYvcliRxEzDwgu9I/IzZClonQgT/jC9Eu3GFTz6sdKc57kIzHWKaFjIA2wz++ZhknyblMIDkAFIcDDFcQ+vtjGJuaOlKPkB2G4V4U9kcu8zfWlPtPVX/g9zZ7QwE03jDTqzWVndBUc57aUp91gToce0cf3R05El5u6gYyNQ0BKK/x...DZlQaK/ebpLV0miPmcCXs1xZySWC9JMA/Fz3/CeXZbgcTCIEVMqiSAkFguxQ0mX06IX9KueIuPpV/xPCS+ttQGnDMs6Tej8SaseF4LN9c9cnxNj6VxI8Q+3em9Hx+c3PmW1UDztMZtXVLEfdymbGAJ60kJGZQmtH99bE8YGN/wd/mgxdG7NFDb8/ZohryYA5HguHhI5uYO27vyoqtrmAiXr31JX/V48CuY8R8FJhxEeeEAQWk9HnYlFmMJoRKG03QLtUJ7/93FvpXXJ7wM/6Za4l71UEu5pWkoucv0Be0tm95vmUdy5t5ktpbPbe8B2vmsi7+rl2Nf4yVaUlLHSQXu7r8tw1JyT+ivhQBaAhZUxBSC5EPpPtMKVDzi3z/+HZHJ7K/7IvC/CRhZ6Ep6evGGyXJS3kAsp3SGcgLKc7uSktBhrW7ZFq32r/HHCVbb0P9fBSYOTpIoJ5SE7GUnpHbrbG8EzsfWfwgwAEfC/ToQIhkhAAAAAElFTkSuQmCC "/>

I know this is encrypted but . who is going to desencrypt this SRC ...the java script on client side to retrive the image or server side ?

Many Thanks
Question by:Mortarello

    Author Comment

    If i use some thing like this do I need another JavaScript function to decrypt and send to the server ? If I need to use another function on the client side, the user can see my function and will be able to decrypt too and find the real SCR.

    I'm a bit lost at this point.
    LVL 3

    Accepted Solution

    It's not encryption but Base64 encoding. You can decode the string into a byte array and get the image back. No decryption necessary.

    See for more information.

    Author Comment

    Thanks Touneh10. :)

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