Certificate

Primary definition

A digitally signed representation of information that 1) identifies the authority issuing it, 2) identifies the subscriber, 3) identifies its valid operational period (date issued / expiration date). In the information assurance (IA) community, certificate usually implies public key certificate and can have the following types: A digital representation of information which at least (1) identifies the certification authority (CA) issuing it, (2) names or identifies its subscriber, (3) contains the subscriber's public key, (4) identifies its operational period, and (5) is digitally signed by the certification authority issuing it. Source: NIST SP 800-32; CNSSI No. 1300 See cross certificate, encryption certificate, and identity certificate.

Also known asdigital certificate · public key certificate · PKC · X.509 certificate · SSL certificate · TLS certificate · identity certificate · encryption certificate · signing certificate · client certificate · server certificate · end-entity certificate · root certificate · intermediate certificate · cross certificate · CA certificate
3 sources cited4 related termsReviewed Aug 9, 2026
Committee on National Security Systems Glossary CNSSI 4009-2015View source

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CNSSGC

A digitally signed representation of information that 1) identifies the authority issuing it, 2) identifies the subscriber, 3) identifies its valid operational period (date issued / expiration date). In the information assurance (IA) community, certificate usually implies public key certificate and can have the following types: A digital representation of information which at least (1) identifies the certification authority (CA) issuing it, (2) names or identifies its subscriber, (3) contains the subscriber's public key, (4) identifies its operational period, and (5) is digitally signed by the certification authority issuing it. Source: NIST SP 800-32; CNSSI No. 1300 See cross certificate, encryption certificate, and identity certificate.

Committee on National Security Systems Glossary CNSSI 4009-2015 · 2024

Cite this term

Permanent URL · stable across revisions
Election Security Glossary. (2026). Certificate. In Election Security Glossary. Retrieved August 21, 2026, from https://electionsecurityglossary.com/glossary/certificate

Sources

3 cited · last checked Aug 9, 2026

01

Committee on National Security Systems Glossary CNSSI 4009-2015
Committee on National Security Systems Glossary CNSSI 4009-2015

High consensus

View source

02

EAC Glossary of Terms
EAC Glossary of Terms

Disputed

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03

The Cyber Glossary
The Cyber Glossary

Multi-source

View source

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