Primary definition
Sequence of symbols (or their electrical or mechanical equivalents) produced in a machine or auto-manual cryptosystem to combine with plain text to produce cipher text, control transmission security processes, or produce key.
Also known askeystream · KS · cipher stream · stream key
2 sources cited4 related termsReviewed Aug 9, 2026
— Committee on National Security Systems Glossary CNSSI 4009-2015View source
Understand more election terms clearly
Get one important election term explained each week, with authoritative sources, practical context and related definitions.
Free. One useful email each week. Unsubscribe anytime.Learn more about the ESG newsletter →
CNSSGC
High consensus
Sequence of symbols (or their electrical or mechanical equivalents) produced in a machine or auto-manual cryptosystem to combine with plain text to produce cipher text, control transmission security processes, or produce key.
Committee on National Security Systems Glossary CNSSI 4009-2015 · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). Key Stream. In Election Security Glossary. Retrieved August 20, 2026, from https://electionsecurityglossary.com/glossary/key-stream
Sources
2 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
02
The Cyber Glossary
The Cyber Glossary
High consensus
Get the weekly election term
Receive one cited, source-backed election explanation in your inbox each week.
Get election terms explained weekly →
Free · Nonpartisan · Unsubscribe anytime.