Skip to main content

DNSSEC Key Signing Key Rollover

On October 11, 2018, the Internet Corporation for Assigned Names and Numbers (ICANN) will be changing the Root Zone Key Signing Key (KSK) used in the Domain Name System Security Extensions (DNSSEC) protocol.
Report a cyber attack: call 0300 303 5222 or email [email protected]

This content has been archived

This article no longer conforms to NHS Digital's standards for cyber alerts, and may contain outdated or inaccurate information. Use of this information contained in this page is at your own risk

Summary

On October 11, 2018, the Internet Corporation for Assigned Names and Numbers (ICANN) will be changing the Root Zone Key Signing Key (KSK) used in the Domain Name System Security Extensions (DNSSEC) protocol.

Threat details

DNSSEC is a set of protocol extensions used to digitally sign DNS information, an important part of preventing domain name hijacking. Updating DNSSEC KSK is a crucial security step in ensuring DNSSEC-validating DNS resolvers continue to function after the change.


Remediation steps

Type Step

Administrators are encouraged to update their DNSSEC KSK. Please see ICANN's Root Zone KSK Rollover resources site and the National Institute for Standard and Technology's (NIST) Roll Ready site for further information

Please note that organisations that do not use DNSSEC validation will not be affected by this change.


Last edited: 17 February 2020 12:42 pm