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Re: [openpgp] Deprecating compression support

Ronald Tse <tse@ribose.com> Fri, 22 March 2019 10:33 UTC

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From: Ronald Tse <tse@ribose.com>
To: "openpgp@ietf.org" <openpgp@ietf.org>, Werner Koch <wk@gnupg.org>
Thread-Topic: [openpgp] Deprecating compression support
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Date: Fri, 22 Mar 2019 10:32:55 +0000
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Subject: Re: [openpgp] Deprecating compression support
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Agree. Thanks Werner!

_____________________________________

Ronald Tse
Ribose Inc.

On Mar 22, 2019, at 5:19 PM, Werner Koch <wk@gnupg.org<mailto:wk@gnupg.org>> wrote:

On Wed, 20 Mar 2019 18:47, bartbutler=40protonmail.com@dmarc.ietf.org<mailto:bartbutler=40protonmail.com@dmarc.ietf.org>
said:

One thing we could add to the compression section would be a SHOULD
for ZLIB as opposed to the legacy ZIP and bzip2, which is slow and
doesn't have much of a reason to exist in my opinion. There's no real

So what about this minor change:

@@ -3322,8 +3321,9 @@ ## Compression Algorithms
 100--110  Private/Experimental algorithm

Implementations MUST implement uncompressed data.  Implementations
-SHOULD implement ZIP.  Implementations MAY implement any other
-algorithm.
+SHOULD implement ZLIB.  For interoperability reasons implementations
+SHOULD be able to decompress using ZIP.  Implementations MAY implement
+any other algorithm.

## Hash Algorithms



Salam-Shalom,

  Werner

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