Primary definition
In a hierarchical PKI, a Certification Authority whose certificate signature key is certified by another CA, and whose activities are constrained by that other CA. (SP 800-32; CNSSI-4009) (NISTIR)
Also known asIntermediate CA · Issuing CA · Sub CA
1 sources cited4 related termsReviewed Aug 10, 2026
— The Cyber GlossaryView source
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TCG
In a hierarchical PKI, a Certification Authority whose certificate signature key is certified by another CA, and whose activities are constrained by that other CA. (SP 800-32; CNSSI-4009) (NISTIR)
The Cyber Glossary · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). Subordinate Certification Authority. In Election Security Glossary. Retrieved August 20, 2026, from https://electionsecurityglossary.com/glossary/subordinate-certification-authority
Sources
1 cited · last checked Aug 10, 2026
01
The Cyber Glossary
The Cyber Glossary
Single-source
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