Home › Entities › request_for_comments › RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures

RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures

request for comments publication
Place request_for_comments Q47468186
Press Enter · cited answer in seconds

RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures

Summary

RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures is a Request for Comments[1].

Key Facts

  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's instance of is recorded as Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures — instance of (P31): Request for Comments[2].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's publisher is recorded as Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures — publisher (P123): Internet Engineering Task Force[3].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's DOI is recorded as 10.17487/RFC1421[4].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's language of work or name is recorded as Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures — language of work or name (P407): English[5].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's publication date is recorded as +1993-02-01T00:00:00Z[6].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's RfC ID is recorded as 1421[7].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's work available at URL is recorded as https://tools.ietf.org/html/rfc1421[8].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's work available at URL is recorded as https://tools.ietf.org/rfc/rfc1421.txt[9].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's work available at URL is recorded as https://www.rfc-editor.org/rfc/rfc1421.txt[10].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's work available at URL is recorded as https://www.rfc-editor.org/pdfrfc/rfc1421.txt.pdf[11].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's number of pages is recorded as {'unit': '1', 'amount': '+42'}[12].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's replaces is recorded as Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures — replaces (P1365): RFC 1113: Privacy enhancement for Internet electronic mail: Part I - message encipherment and authentication procedures[13].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's title is recorded as Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures[14].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's author name string is recorded as J. Linn[15].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's DBLP publication ID is recorded as journals/rfc/rfc1421[16].
  • RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's GitLab topic ID is recorded as RFC+1421[17].

Body

Designation and Status

RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures's instance of is recorded as Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures — instance of (P31): Request for Comments[2].

References

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

Direct Wikidata claims

  1. [2] ↑ . RFC Index. Retrieved . wikidata.org.
  2. [3] ↑ . RFC Index. Retrieved . wikidata.org.
  3. [4] ↑ . RFC Index. Retrieved . wikidata.org.
  4. [5] ↑ . RFC Index. Retrieved . wikidata.org.
  5. [6] ↑ . RFC Index. Retrieved . wikidata.org.
  6. [7] ↑ . RFC Index. Retrieved . wikidata.org.
  7. [8] ↑ . RFC Index. Retrieved . wikidata.org.
  8. [9] ↑ . RFC Index. Retrieved . wikidata.org.
  9. [10] ↑ . RFC Index. Retrieved . wikidata.org.
  10. [11] ↑ . RFC Index. Retrieved . wikidata.org.
  11. [12] ↑ . RFC Index. Retrieved . wikidata.org.
  12. [13] ↑ . RFC Index. Retrieved . wikidata.org.
  13. [14] ↑ . RFC Index. Retrieved . wikidata.org.
  14. [15] ↑ . RFC Index. Retrieved . wikidata.org.
  15. [16] ↑ . DBLP Dataset 2021-01-02. Retrieved . wikidata.org.
  16. [17] ↑ . wikidata.org.

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). RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures. Retrieved May 3, 2026, from https://4ort.xyz/entity/rfc-1421-privacy-enhancement-for-internet-electronic-mail-part-i-message-encryption-and-authentication-procedures
MLA “RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/rfc-1421-privacy-enhancement-for-internet-electronic-mail-part-i-message-encryption-and-authentication-procedures.
BibTeX @misc{4ortxyz_rfc-1421-privacy-enhancement-for-internet-electronic-mail-part-i-message-encryption-and-authentication-procedures_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures}}, year = {2026}, url = {https://4ort.xyz/entity/rfc-1421-privacy-enhancement-for-internet-electronic-mail-part-i-message-encryption-and-authentication-procedures}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): RFC 1421: Privacy Enhancement for Internet Electronic Mail: Part I: Message Encryption and Authentication Procedures — https://4ort.xyz/entity/rfc-1421-privacy-enhancement-for-internet-electronic-mail-part-i-message-encryption-and-authentication-procedures (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/rfc-1421-privacy-enhancement-for-internet-electronic-mail-part-i-message-encryption-and-authentication-procedures · Last refreshed: