Browse Prior Art Database

PGP Message Exchange Formats (RFC1991)

IP.com Disclosure Number: IPCOM000004268D
Original Publication Date: 1996-Aug-01
Included in the Prior Art Database: 2019-Feb-14
Document File: 21 page(s) / 28K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

D. Atkins: AUTHOR [+2]

Related Documents

10.17487/RFC1991: DOI

Abstract

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.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 8% of the total text.

Network Working Group D. Atkins Request for Comments: 1991 MIT Category: Informational W. Stallings Comp-Comm Consulting P. Zimmermann Boulder Software Engineering August 1996

PGP Message Exchange Formats

Status of This Memo

This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind. Distribution of this memo is unlimited.

Table of Contents

1. Introduction............................................2 2. PGP Services............................................2 2.1 Digital signature.......................................3 2.2 Confidentiality.........................................3 2.3 Compression.............................................4 2.4 Radix-64 conversion.....................................4 2.4.1 ASCII Armor Formats.....................................5 3. Data Element Formats....................................6 3.1 Byte strings............................................6 3.2 Whole number fields.....................................7 3.3 Multiprecision fields...................................7 3.4 String fields...........................................8 3.5 Time fields.............................................8 4. Common Fields...........................................8 4.1 Packet structure fields.................................8 4.2 Number ID fields.......................................10 4.3 Version fields.........................................10 5. Packets................................................10 5.1 Overview...............................................10 5.2 General Packet Structure...............................11 5.2.1 Message component......................................11 5.2.2 Signature component....................................11 5.2.3 Session key component..................................11 6. PGP Packet Types.......................................12 6.1 Literal data packets...................................12 6.2 Signature packets......................................13 6.2.1 Message-digest-related fields..........................14 6.2.2 Public-key-related fields..............................15 6.2.3 RSA signatures.........................................16

Atkins, et. al. Informational [Page 1]

RFC 1991 PGP Message Exchange Formats August 1996

6.2.4 Miscellaneous fields...................................16 6.3 Compressed data packets................................17 6.4 Conventional-key-encrypted data packets................17 6.4.1 Conventional-encryption type byte......................18 6.5 Public-key-encrypted packets...........................18 6.5.1 RSA-encrypted data encryption key (DEK)................19 6.6 Public-key Packets.....................................19 6.7 User ID packets........................................20 7. Transferable Public Keys...............................20 8. Acknowledgments........................................20 9. Security Considerations................................21 10. Authors’...

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