Node.js's crypto.randomBytes() accepts size 0

[Mickael-van-der-Beek]

The following code:

var size = 0;
crypto.randomBytes(size, function (e, buffer) {
    if (e) {
        return callback(e);
    }

    callback(e, buffer.toString('hex'));
});

will return an empty (length of 0) SlowBuffer.

This is a bug in Node.js's core module crypto.
The similar crypto.pseudoRandomBytes() method would return the same value.

[Mickael-van-der-Beek]

The following issue:

• Domain fails to catch when error thrown inside crypto.pbkdf2 nodejs/node-v0.x-archive#5801

and it's corresponding commit:

• nodejs/node-v0.x-archive@6e689ec

might fix this.

It still needs to be tested though.