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Off-the-Record Messaging

cryptographic protocol for instant messaging providing forward secrecy and malleable encryption using 128-bit AES, 1536-bit Diffie–Hellman, and SHA-1
Thing cryptographic_protocol Q512063

Facts

11 properties
Instance of
cryptographic protocol
Country
Canada[4]
Official website
otr.cypherpunks.ca[8]
License
GNU Lesser General Public License
Website
otr.cypherpunks.ca
Programming language
C
Has use
end-to-end encryption[7]
Copyright license
GNU Lesser General Public License[5]
Copyright status
copyrighted[9]
Creator
Ian Goldberg, Nikita Borisov[2][3]
Programmed in
C[6]
🏷️ Also known as
en Off-the-Record Messaging en OTR es Off the record messaging ko 오프 더 레코드 메시징
🔖 Identifiers · 3
AlternativeTo software ID
off-the-record-messaging-otr
Freebase ID
/m/065w2c
Microsoft Academic ID (discontinued)
68675126

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Creator 2
Ian Goldberg, Nikita Borisov
Copyright license 1
GNU Lesser General Public License
Country 1
Canada
Created notable works 1
Ian Goldberg
Has use 1
end-to-end encryption
Instance of 1
cryptographic protocol
← Based on 1
Signal Protocol
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Summary

Off-the-Record Messaging is a cryptographic protocol[1].

Body

Works and Contributions

Created works include Ian Goldberg[2], a cryptographer[10], b. 1973[11], of Canada[12], awarded the EFF Award[13] and Nikita Borisov[3], a cryptographer[14], b. 1977[15], of Soviet Union[16].

Related Entities

Canada Ian Goldberg Nikita Borisov

References

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

Direct Wikidata claims

  1. [4] ↑ . wikidata.org.
  2. [2] ↑ . Retrieved . wikidata.org.
  3. [3] ↑ . Retrieved . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.

Inline context (facts about related entities)

  1. [10] ↑ . Wikidata. wikidata.org. → on this site
  2. [11] ↑ . Wikidata. wikidata.org. → on this site
  3. [12] ↑ . Wikidata. wikidata.org. → on this site
  4. [13] ↑ . Wikidata. wikidata.org. → on this site
  5. [14] ↑ . Wikidata. wikidata.org. → on this site
  6. [15] ↑ . Wikidata. wikidata.org. → on this site
  7. [16] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. 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). Off-the-Record Messaging. Retrieved November 3, 2026, from https://4ort.xyz/entity/off-the-record-messaging
MLA “Off-the-Record Messaging.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 Nov. 2026, https://4ort.xyz/entity/off-the-record-messaging.
BibTeX @misc{4ortxyz_off-the-record-messaging_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Off-the-Record Messaging}}, year = {2026}, url = {https://4ort.xyz/entity/off-the-record-messaging}, note = {Accessed: 2026-11-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Off-the-Record Messaging — https://4ort.xyz/entity/off-the-record-messaging (retrieved 2026-11-03)

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