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trapdoor function

type of function that is easy to compute in one direction, yet difficult to compute in the opposite direction without special information
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trapdoor function

Summary

trapdoor function ranks in the top 2% of general entities by monthly Wikipedia readership (102 views/month).[1]

Key Facts

  • trapdoor function's subclass of is recorded as function[2].
  • trapdoor function's has use is recorded as cryptography[3].
  • trapdoor function's Freebase ID is recorded as /m/01dbp_[4].
  • trapdoor function's described by source is recorded as Security Engineering: A Guide to Building Dependable Distributed Systems, 2nd edition[5].
  • trapdoor function's defining formula is recorded as f(x) = x^e \mod n[6].
  • trapdoor function's maintained by WikiProject is recorded as WikiProject Mathematics[7].
  • trapdoor function's Microsoft Academic ID is recorded as 113132151[8].

Why It Matters

trapdoor function ranks in the top 2% of general entities by monthly Wikipedia readership (102 views/month).[1] It has Wikipedia articles in 13 language editions, a strong signal of global cultural recognition.[9] It is known by 10 alternative names across languages and contexts.[10]

Related Entities

cryptography

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] ↑ . Freebase Data Dumps. wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [9] ↑ . Wikidata sitelinks. wikidata.org.
  3. [10] ↑ . 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). trapdoor function. Retrieved April 10, 2026, from https://4ort.xyz/entity/trapdoor-function
MLA “trapdoor function.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/trapdoor-function.
BibTeX @misc{4ortxyz_trapdoor-function_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{trapdoor function}}, year = {2026}, url = {https://4ort.xyz/entity/trapdoor-function}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): trapdoor function — https://4ort.xyz/entity/trapdoor-function (retrieved 2026-04-10)

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