Web and technology
KSK
Abbreviation for Key Signing Key
In short and in plain language
The KSK is a key that helps to secure domain names.
It is used to sign the other keys of a domain.
It forms the base of a chain of trust.
When it is replaced, everyone involved must put the new version in place in time. This has to be done without mistakes.
Definition
The KSK is the key that signs the other keys of a domain in DNSSEC. It forms the basis of the chain of trust. When it is replaced, all parties must publish the new version in time and without errors.