[dns-operations] .NET Zone DNSSEC Operational Update -- ZSK length change

Y. peng ypeng at gmx.net
Wed Jul 10 02:28:07 UTC 2019

what should we do as ISP cache DNS server operator?

> Verisign is in the process of increasing the size and strength of
> the DNSSEC Zone Signing Keys (ZSKs) for the top-level domains that
> it operates.  As part of this process, the ZSK for the .NET zone
> will be increased in size from 1024 to 1280 bits.
> On July 10, 2019 the 1280 bit ZSK will be pre-published in the .NET
> zone.  On July 15, the .NET zone will be signed with the 1280 bit
> ZSK.  On July 20, the 1024 bit ZSK will be removed from the zone.
> We do not anticipate any problems from this upgrade.  In accordance
> with our normal operating procedures we have a rollback process
> should it become necessary to revert to the 1024 bit ZSK.

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