[messaging] Do quantum attacks/algos also lead to compromise of PFS?

[U.Mutlu]

Tao Effect wrote, On 01/24/2015 10:07 PM:
> Just realized that this also seems on topic for this list (since it's
> directly relevant to e2e messaging, especially forms like OTR).
>
> So, I understand that QM algos can pretty much dismantle all popular
> asymmetric encryption algos with enough q-bits, but I haven't thought hard
> enough to see if they also can be used to compromise communications that
> used DH to do PFS underneath the initial handshake.
>
> Thanks, Greg

 From my practical experience:

DH-with-Authentication, if done right, is 100% secure against all attacks.

QM crypto is nothing but BS from some snake-oil-sellers.
I mean for online-authentication there is no need for QM crypto.

But, it might be different for cracking PKI, ie. the RSA trash.

cu
Uenal