[dns-operations] Aging TLD RSA DNSKEYs...

Florian Weimer fweimer at redhat.com
Mon Jan 21 09:11:05 UTC 2019

* Paul Hoffman:

> Great for whom? This is a serious question. Given that there is no
> indication that RSA-1024 can be broken in a few years without hundreds
> of millions of dollars worth of work (unless TWIRL chips exist, and
> there is no indication that they do), what is the value to the DNS of
> rolling based on your calculations?

The DNS community assumes that each RSA signature weakens the public key
slightly, so that keys which create many signatures need to be replaced


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