AW: Arithmetic error in SunEC

[Tobias Wagner]

Hi,

yes, from what we know your understanding is correct. The NIST curve secp384r1 is using these functions but seems not to be affected because of its prime. Any other curve will probably affected.

Regards
Tobias
 
-----Ursprüngliche Nachricht-----
> Von:Adam Petcher <adam.petcher at oracle.com>
> Gesendet: Die 17 Oktober 2017 22:26
> An: security-dev at openjdk.java.net
> Betreff: Re: Arithmetic error in SunEC
> 
> On 10/17/2017 4:55 AM, Tobias Wagner wrote:
> 
> > Hi,
> >
> > we found an error in the GF(p)-arithmetics of SunEC, while adding
> > support for brainpool-curves in ECDHE for TLS connections as
> > suggested in RFC 7027.
> <snip>
> 
> Thanks! I created JDK-8189594[1] to track this issue. My understanding 
> is that this error doesn't cause any bugs in the existing JDK code, but 
> it may cause bugs if we add new curves that use this optimization. If I 
> am wrong about this, please let me know.
> 
> [1] https://bugs.openjdk.java.net/browse/JDK-8189594
> 
> >
> > Regards
> > Tobias
> >
> 
>