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Playfair cipher

early block substitution cipher
Thing general Q829915
Playfair cipher
Davidtheterp · Public Domain · Wikimedia
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Playfair cipher

Summary

Playfair cipher ranks in the top 2% of general entities by monthly Wikipedia readership (185 views/month).[1]

Key Facts

  • Playfair cipher is credited with the discovery of Charles Wheatstone[2].
  • Lyon Playfair, 1st Baron Playfair is named after Playfair cipher[3].
  • Playfair cipher is a type of substitution cipher[4].
  • Playfair cipher's Commons category is recorded as Playfair[5].
  • Playfair cipher's described by source is recorded as Security Engineering: A Guide to Building Dependable Distributed Systems, 2nd edition[6].

Body

Definition and Type

Playfair cipher is a type of substitution cipher[4].

Origins

Lyon Playfair, 1st Baron Playfair is named after Playfair cipher[3].

Why It Matters

Playfair cipher ranks in the top 2% of general entities by monthly Wikipedia readership (185 views/month).[1] It has Wikipedia articles in 22 language editions, a strong signal of global cultural recognition.[7] It is known by 18 alternative names across languages and contexts.[8]

Related Entities

Charles Wheatstone

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [7] ↑ . Wikidata sitelinks. wikidata.org.
  3. [8] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Playfair cipher. Retrieved April 10, 2026, from https://4ort.xyz/entity/playfair-cipher
MLA “Playfair cipher.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/playfair-cipher.
BibTeX @misc{4ortxyz_playfair-cipher_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Playfair cipher}}, year = {2026}, url = {https://4ort.xyz/entity/playfair-cipher}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Playfair cipher — https://4ort.xyz/entity/playfair-cipher (retrieved 2026-04-10)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 4w ago · PBot bot · 2026-06-01 view diff on Wikidata ↗
    Subclass of → —
    Aliases → —
    Named after → —
    Described by source → Security Engineering: A Guide to Building Dependable Distributed Systems, 2nd edition
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ Add GA badge for ruwiki"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.