Primary definition
A family of functions and their inverses that is parameterized by a cryptographic key; the function maps bit strings of a fixed length to bit strings of the same length. (SP 800-67) (NISTIR)
Also known asblock cipher · block encryption algorithm · symmetric block cipher · block encryption cipher
1 sources cited4 related termsReviewed Aug 10, 2026
— The Cyber GlossaryView source
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TCG
A family of functions and their inverses that is parameterized by a cryptographic key; the function maps bit strings of a fixed length to bit strings of the same length. (SP 800-67) (NISTIR)
The Cyber Glossary · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). Block Cipher Algorithm. In Election Security Glossary. Retrieved August 21, 2026, from https://electionsecurityglossary.com/glossary/block-cipher-algorithm
Sources
1 cited · last checked Aug 10, 2026
01
The Cyber Glossary
The Cyber Glossary
Single-source
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