Primary definition
Symbol or group of symbols in an off-line encrypted message identifying the specific cryptosystem or key used in the encryption.
Also known ascryptosystem identifier · key identifier · encryption system marker · system ID
2 sources cited4 related termsReviewed Aug 10, 2026
— Committee on National Security Systems Glossary CNSSI 4009-2015View source
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CNSSGC
Symbol or group of symbols in an off-line encrypted message identifying the specific cryptosystem or key used in the encryption.
Committee on National Security Systems Glossary CNSSI 4009-2015 · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). System Indicator. In Election Security Glossary. Retrieved August 20, 2026, from https://electionsecurityglossary.com/glossary/system-indicator
Sources
2 cited · last checked Aug 10, 2026
01
Committee on National Security Systems Glossary CNSSI 4009-2015
Committee on National Security Systems Glossary CNSSI 4009-2015
High consensus
02
The Cyber Glossary
The Cyber Glossary
Multi-source
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