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    Glossary
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Root Certificate Authority (CA)

Definitions:

  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.
Sources:
CNSSI 4009-2015 under root certificate authority
NIST SP 1800-21C

  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.
Sources:
NIST SP 1800-16B under Root certificate authority
NIST SP 1800-16C under Root Certificate Authority
NIST SP 1800-16D under Root certificate authority