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 (328 views/month).[1]

Key Facts

  • Playfair cipher is credited with the discovery of Charles Wheatstone[2].
  • Playfair cipher's image is recorded as Playfair Cipher 01 HI to BM (cropped).png[3].
  • Lyon Playfair, 1st Baron Playfair is named after Playfair cipher[4].
  • Playfair cipher's subclass of is recorded as substitution cipher[5].
  • Playfair cipher's Commons category is recorded as Playfair[6].
  • Playfair cipher's Freebase ID is recorded as /m/017dww[7].
  • Playfair cipher's described by source is recorded as Security Engineering: A Guide to Building Dependable Distributed Systems, 2nd edition[8].
  • Playfair cipher's Encyclopædia Britannica Online ID is recorded as topic/Playfair-cipher[9].
  • Playfair cipher's Microsoft Academic ID is recorded as 191066029[10].

Body

Works and Contributions

Playfair cipher is credited with the discovery of Charles Wheatstone[2].

Why It Matters

Playfair cipher ranks in the top 2% of general entities by monthly Wikipedia readership (328 views/month).[1] It has Wikipedia articles in 22 language editions, a strong signal of global cultural recognition.[11] It is known by 18 alternative names across languages and contexts.[12]

References

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

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [2] . wikidata.org.
  3. [4] . wikidata.org.
  4. [5] . wikidata.org.
  5. [6] . wikidata.org.
  6. [7] . Freebase Data Dumps. wikidata.org.
  7. [8] . wikidata.org.
  8. [9] . wikidata.org.
  9. [10] . wikidata.org.

Aggregate / graph-position facts

  1. [1] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [11] . Wikidata sitelinks. wikidata.org.
  3. [12] . 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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