On Monday 25 January 2016 10:29:18 Benjamin Kaduk wrote: > On 01/22/2016 01:14 PM, Hubert Kario wrote: > > On Friday 22 January 2016 10:39:26 Andrey Jivsov wrote: > >> On 01/22/2016 03:14 AM, Hubert Kario wrote: > >>>> The only solution that's available at this point is conditioning > >>>> TLS > >>>> 1.3 support on appropriate hardware. For this reason TLS 1.3 it > >>>> probably won't be enabled by default in the product I work on. I > >>>> would prefer for TLS 1.3 to be enabled by default and write the > >>>> code > >>>> to decide whether it does PSS or falls back to RSA PKCS1 1.5. > >>> > >>> Yes, it would be nice. But PKCS#1 v1.5 had it long coming. Not > >>> cutting it off now would be negligent. > >> > >> You mean for HS only, while leaving it for X.509 certs? > > > > If we don't do it for HS in TLS first, we'll never get rid of it in > > X.509 certs. > > > > We need to start somewhere, and it's more reasonable to expect that > > hardware with support for new protocols will get updated for RSA-PSS > > handling than that libraries and hardware will suddenly start > > implementing it in droves just in anticipation of the time when CAs > > _maybe_ will start issuing certificates signed with RSA-PSS. > > Isn't it more a matter of TLS being a consumer of external PKIX > infrastructure, the web PKI, etc.? They are out of the reach of the > IETF TLS working group; any requirements we attempted to impose would > be unenforceable, even if there was an Internet Police (which there > is not).
TLS will happily use PKCS#1 v1.5 signed X.509 certificates, so how exactly is creating a side effect of increasing the deployment rate of RSA-PSS _in TLS implementations_ an "overreach"?! -- Regards, Hubert Kario Senior Quality Engineer, QE BaseOS Security team Web: www.cz.redhat.com Red Hat Czech s.r.o., Purkyňova 99/71, 612 45, Brno, Czech Republic
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