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ObsoletedINFORMATIONALLegacy stream

RFC 1991: PGP Message Exchange Formats

This RFC has been replaced. Do not implement against it for new work — it was formally obsoleted by RFC 4880.

Current document in this lineage: RFC 9580 — OpenPGP

In plain English — editorial summary, not part of the RFC

This document describes the format of "PGP files", i.e., messages that have been encrypted and/or signed with PGP. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.

Document record

Document ID
RFC1991
Published
August 1996
Authors
D. Atkins; W. Stallings; P. Zimmermann
Status
INFORMATIONAL
Stream
Legacy
Area
—
Pages
21
Also known as
—
Obsoleted by:
RFC 4880

Topics

Standards lineage

This document is one revision in a chain of 6 RFCs, each formally replacing the one before it.

  1. RFC 1991 (1996)
  2. RFC 2440 (1998)
  3. RFC 4880 (2007)
  4. RFC 5581 (2009)
  5. RFC 6637 (2012)
  6. RFC 9580 (2024) ✓

Read the full history of OpenPGP →

Referenced by

One later RFC formally updates or obsoletes part of this document.

Related documents

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About this page

The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/1991-pgp-message-exchange-formats