Silly question... Are you using the same salt each time? It looks here
like you're randomly generating it and not saving it.
On Thursday, July 19, 2012, kyogron wrote:
> Hello,
>
> I use following snippet to hash a user password:
>
> crypto.randomBytes(32, function(err, buf) {
> if (err) throw err;
> user.salt = buf;
> crypto.pbkdf2(req.body.password, user.salt, 25000, 512, function(err,
> encodedPassword) {
> if (err) throw err;
> user.password = encodedPassword;
> user.save(function(err, user) {
> if (!err) return res.send(err, 500);
> return res.json(user);
> });
> }.bind(this));
> });
>
>
> With buf.toString('base64') I can successfully encode the salt from a bin
> buffer object to a string. The same unfortunatly doesn't work on the
> derivedKey of pbkdf2.
> This is some binary string which i can save to mongodb but I can't rebuilt
> it (hashing the user's login password gets always a different key).
>
> So how can I encode the derivedKey of pbkd2 to a in javascript usable
> string (e.g. base64 or utf-8)?
>
> Regards
>
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