Wow, thanks a lot! I don't know how I could miss that...
Paulina.
W dniu wtorek, 11 września 2012 15:53:25 UTC+2 użytkownik Ben Noordhuis
napisał:
>
> On Tue, Sep 11, 2012 at 9:42 AM, Paulina Budzoń
> <paulina...@gmail.com <javascript:>> wrote:
> > Hello everyone,
> >
> > Recently I've upgraded my node to v0.8.8 and I encountered this strange
> > error (I'm not sure if it was present in previous node versions,
> though).
> > I have two functions for crypting and decrypting data in my application:
> >
> > var cc_key = fs.readFileSync(path_to_key_file);
> >
> > crypt = function(val){
> > var c = crypto.createCipher('aes256', cc_key.toString());
> > c.update(val, 'utf8');
> > return c.final('hex')
> > }
> >
> > decrypt = function(val){
> > var c = crypto.createDecipher('aes256', cc_key.toString());
> > c.update(val, 'hex');
> > return c.final('utf8');
> > }
> >
> > Both work just fine, unless I try to crypt and decrypt strings longer
> than
> > 15 characters.
> >
> > For example, doing:
> >
> > var a = crypt("123456789012345");
> > console.log(decrypt(a))
> >
> > works perfectly.
> > But doing:
> >
> > var a = crypt("1234567890123456");
> > --- in here a = "694e42d3af6bd12b6fb6d165ca702e30" - so it's not empty
> and
> > seem to be ok ---
> > console.log(decrypt(a));
> >
> > Throws: TypeError: DecipherFinal fail.
> >
> > I'm not sure if I'm doing something wrong or there is a bug in crypto
> module
> > in node? I looked over the internet and it seems like a lot of people
> have
> > similar problems, but no-one knows the answer why is this happening.
>
> You need to concatenate the return values of update() and final(),
> both when encrypting and decrypting.
>
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