Cipher text generated by cryptographic logic to detect failures in cryptography.
What is check word?
The term Check Word refers to ciphertext or another cryptographically generated value used to detect failures, errors, or incorrect operation in cryptographic processing. It gives election, security, legal, or technical readers a specific label for the concept rather than a broader everyday meaning.
How is check word used in cryptography or COMSEC?
In practice, Check Word is applied to the technical or security purpose captured by its definition: ciphertext or another cryptographically generated value used to detect failures, errors, or incorrect operation in cryptographic processing. Organizations combine that function with documented procedures, authorized access, testing, monitoring, and controls appropriate to the system. The governing standard or security policy determines the exact implementation.
Why does check word need security controls?
Understanding Check Word matters because the concept can affect security, reliability, auditability, or trusted operation. In this glossary context, it refers to ciphertext or another cryptographically generated value used to detect failures, errors, or incorrect operation in cryptographic processing. Applying the term precisely helps teams choose controls.
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Cipher text generated by cryptographic logic to detect failures in cryptography.
Cite this term
Election Security Glossary. (2026). Check Word. In Election Security Glossary. Retrieved August 21, 2026, from https://electionsecurityglossary.com/glossary/check-word
Sources
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High consensus
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Multi-source
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