Jakob's right. If I understand question correctly, you always need two KSK RRSIGs to be able to simultaneously validate with either TA. I learned that when I was testing ksrsigner.c for key rolls. -Rick -----Original Message----- From: ksk-rollover-bounces@icann.org [mailto:ksk-rollover-bounces@icann.org] On Behalf Of Jakob Schlyter Sent: Thursday, October 09, 2014 11:06 PM To: Paul Hoffman Cc: ksk-rollover@icann.org Subject: Re: [ksk-change] Testing new keys added On 10 okt 2014, at 04:19, Paul Hoffman <paul.hoffman@vpnc.org> wrote:
Assuming that a rollover uses the Double-KSK method described previously, is there an intention to test systems for the new SEP key before removing the old one? That is, if A is the current KSK and IANA adds B, after the 30-day hold-down time, either key could be used to sign zones in the root.
No, both keys needs to sign the ZSK that signs the DS records in the root zone. And that invalidates the rest of your (otherwise interesting) proposal. Sorry :-/ jakob _______________________________________________ ksk-rollover mailing list ksk-rollover@icann.org https://mm.icann.org/mailman/listinfo/ksk-rollover