[openpgp] [Technical Errata Reported] RFC9580 (8814)

RFC Errata System <[email protected]> Sun, 8 Mar 2026 15:42:09 -0700 (PDT)
Newsgroups gmane.ietf.openpgp
Message-ID <[email protected]>
The following errata report has been submitted for RFC9580,
"OpenPGP".

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You may review the report below and at:
https://www.rfc-editor.org/errata/eid8814

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Type: Technical
Reported by: Daphne Shaw <[email protected]>

Section: 5.6

Original Text
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A ZLIB-compressed series of packets is compressed with raw ZLIB-style
blocks [RFC1950].

Corrected Text
--------------
A ZLIB-compressed series of packets is compressed using the ZLIB
compressed data format [RFC1950].

or

A ZLIB-compressed series of packets is compressed with ZLIB-style
blocks [RFC1950].

(Or other words to that effect — the intent is to remove the
word "raw").

Notes
-----
In OpenPGP, only ZIP compression uses raw blocks. The ZLIB and BZip2 algorithms both have headers present. A ZLIB stream without headers would be noncompliant to RFC-1950, section 2.3 ("A compliant compressor must produce streams with correct CMF, FLG and ADLER32...").

The "raw" was not present in RFC-4880. I believe it came in via https://gitlab.com/openpgp-wg/rfc4880bis/-/commit/c326b8d4b946b2d51eb9885677e0521fb0ecf1a9

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RFC9580 (draft-ietf-openpgp-crypto-refresh-13)
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Title               : OpenPGP
Publication Date    : July 2024
Author(s)           : P. Wouters, Ed., D. Huigens, J. Winter, Y. Niibe
Category            : PROPOSED STANDARD
Source              : Open Specification for Pretty Good Privacy
Stream              : IETF
Verifying Party     : IESG

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