Root Certificate Authority

Root Certificate Authority definition in Computer Security terms:

Acronym(s): None

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): CNSSI 4009-2015 (NIST SP 800-32)

Synonym(s): None


reference: CSRC Glossary