GPG - Invalid packet

David Shaw dshaw at
Fri Apr 2 16:29:04 CEST 2004

On Fri, Apr 02, 2004 at 08:56:10AM -0500, Harper, Jason (GE Consumer Finance) wrote:

> I've been using gpg to do file encryption with partners of ours, but we
> just ran into two odd issues:
> 1. a GPG "don't know: invalid packet (ctb-1f) & (ctb-40)
> 2. a GPG "problem reading source"
> I've done the google thing on this, but I'm not making much progress.
> Does the list have any pointers for me to look at? We've not run into
> this before. 
> The source file is being encrypted, and compressed and signed by an NAI
> 7.11 Business PGP system, and we are opening on a Solaris 8 box with gpg
> 1.2.3.  I've sanitized some of the data to protect the innocent..

Could you run 'gpg --list-packets' on those files?  It might shed some

How large are the files (both input, and expected output sizes) ?

Are the input files ASCII armor ("---BEGIN PGP MESSAGE---", etc) or


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