PGP 6.5.8 - PGP 7.7.4 compatability with gpg 1.4.2

[Vidas Makauskas]

Hi,
I've been crypting files with gpg 1.2.2 on SUSE8.2 distribution.
Partners use PGP 6.5.8 - PGP 7.7.4 for decrypting.

I need transfer crypting to SuseEnterpriseServer10 with gpg 1.4.2 by default
in distribution.
Problem is, that partners can't decrypt my files now.

Before encryption i export secret key from SUSE8.2:
gpg --armor --export-secret-keys SECRET >SECRET.ASC

and import to SLES10.
gpg --import SECRET.ASC
gpg --import PARTNER.PKR - public key

Our partners cant't decrypt my files now.
PGP use DH/DSS 1024-4096
GPG use DSA and ElGamal 1024-2048
How can I check used key formats and change by default?
How can I be sure what i use DSA and ElGamal 1024-2048 by default?

I check ability to uninstall gpg1.4.2 and install gpg1.2.2, And get many
affected SLES10 packets by requirements:
pattern:base-10-51.20.i586 has missing dependencies
pattern:gnome-10-51.20.i586 has missing dependencies
pattern:apparmor-10-51.20.i586 has missing dependencies
pattern:SUSE-Linux-Enterprise-Server-i386-10-0.i686 has missing dependencies
pattern:x11-10-51.20.i586 has missing dependencies
pattern:print-server-10-51.20.i586 has missing dependencies
yast2-xml-2.13.2-1.3.i586 has missing dependencies
cups-1.1.23-40.6.i586 has missing dependencies
rpm-4.4.2-43.4.i586 has missing dependencies
kernel-smp-2.6.16.21-0.8.i586 has missing dependencies
libzypp-1.2.0-1.21.i586 has missing dependencies
ghostscripts-library-8.15.2rc1-20.4.i586 has missing dependencies
rug-7.1.1.0-18.23.i586 has missing dependencies
gpg2-1.9.18-17.2.i586 has missing dependencies
net-snmp-5.3.0.1-25.2.i586 has missing dependencies
gpgme-1.0.3-16.2.i586 has missing dependencies
hplip-hpijs-0.9.7-19.2.i586 has missing dependencies and many many yast2
packets

There fore I'm affraid downgrade gpg.
Does I break system if uninstall 1.4.2 and install 1.2.2 packets only.

How can i resolve compatability?

Vidas Makauskas
Programuotojas, IT departamentas
Tel.:(5)2490920