ArrayBuffer and createBuffer

[mixxr]

Hello

'm trying to read a file, encrypt it and send it.
The file is read via FileReader that returns a ArrayBuffer. When I try to pass it to forge.util.createBuffer(), it reads the content not like an octet stream but always returns "[object ArrayBuffer]" as a string.
I tried to convert it to Uint8Array but the result was the same (e.g. "[object Uint8Array]").
Here my code:

            mcipher.start(iv);
            var byteArray = new Uint8Array(evt.target.result)
    var buf = forge.util.createBuffer(byteArray);
    mcipher.update(buf);
    mcipher.finish();
    var encrypted = mcipher.output.data;

encrypted is always 32bytes in length (because it encrypts the string "[object Uint8Array]").

How can I convert the evt.target.result into a byte array?

many thx
mike

[dlongley]

@mixxr, forge was written before Typed Array support was available in every major browser. It uses a special string encoding internally to handle binary data. We do plan on switching forge's internals and APIs over to using Typed Arrays/ArrayBuffers (see: #60), we just haven't gotten around to it yet.

For now, I've added some quick support that will convert an ArrayBuffer or any ArrayBufferView (Typed array) to a forge buffer. The code snippet you have above should do what you were expecting with the latest release w/respect to converting a Uint8Array to a forge buffer.