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Root Certificate Authority (CA)

Definition(s):

  In a hierarchical public key infrastructure (PKI), the certification authority (CA) whose public key serves as the most trusted datum (i.e., the beginning of trust paths) for a security domain.
Source(s):
NIST SP 1800-21C
CNSSI 4009-2015 [Superseded] under root certificate authority from NIST SP 800-32

  In a hierarchical public key infrastructure (PKI), the CA whose public key serves as the most trusted datum (i.e., the beginning of trust paths) for a security domain.
Source(s):
NIST SP 1800-16B under Root certificate authority from NIST SP 800-32
NIST SP 1800-16C under Root Certificate Authority from NIST SP 800-32
NIST SP 1800-16D under Root certificate authority from NIST SP 800-32