Computer Security Resource Center

Computer Security Resource Center

Computer Security
Resource Center

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Key Signing Key (KSK)

Abbreviation(s) and Synonym(s):

KSK

Definition(s):

  An authentication key that corresponds to a private key used to sign one or more other authentication keys for a given zone. Typically, the private key corresponding to a key signing key will sign a zone signing key, which in turn has a corresponding private key that will sign other zone data. See also “zone signing key.”
Source(s):
NIST SP 800-81-2