PGP 7 and encrypted session key is bad

[Stefan H. Holek]

On Fri, 1 Dec 2000, Andreas Siegert wrote:

> I am using gpg 1.0.3 and 1.0.4 (Linux).
> I am trying to interoperate with PGP 7.0 (NT).
> 
> When encrypting messages to the PGP system, no matter if it is a gpg or pgp
> generated key, I always get the error "encrypted session key is bad". If I send
> signed messages (with a GPG key) then I get a "found detached sig, no
> callback" error from PGP. 
 
> escape-from-lines
> lock-once
> rfc1991

I don't know what rfc1991 actually does and I don't use it.
The manpage says: "Try to be more RFC1991 (PGP 2.x) compliant." 
???

> cipher-algo CAST5
> compress-algo 1
> no-comment

I also have 

digest-algo sha1	# gpg will otherwise use RIPE-MD-160

and, though you don't appear to have key problems

s2k-cipher-algo cast5	# gpg default for this is BLOWFISH
s2k-digest-algo sha1    # default RIPE-MD-160

There have also been some No Callback discussions on pgp-users; unresolved
AFAIK. Make sure it is not actually a problem with the plugin or the mail
client on the Windows side. Are you using PGP/MIME? Try without.

HTH,
Stefan

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