Compression compatability [was Re: 10x compression factor]

[Maxine Brandt]

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On Mon, 9 Feb 2004  David Shaw wrote
Subject: Re: 10x compression factor

> If they are compressing within PGP, then it's ZIP compression, as
> that's the only compression algorithm that PGP supports.  

This raises a point about compatability of GPG keys with PGP 8.x. The default 
compression preferences in GPG are Z2 Z1 (ZLIB ZIP) and decompression 
failures with GPG-encrypted messages were reported by PGP 8.0.3 users in a 
recent thread on the PGP-Basics list.

PGP keys have no compression (or hash) preferences as far as I can see by 
importing a PGP key and doing gpg --pref, so it seems GPG uses ZLIB even if 
PGP 8 can't handle it, and apparently has no way of finding from the PGP key 
that it shouldn't.

Salut
Maxine
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