1.4.3 problem with decrypting pgp2.6.3 symmetrically encrypted

Johan Wevers johanw at vulcan.xs4all.nl
Mon May 29 20:57:40 CEST 2006

Hmmm, it indeed fails:

I wrote:

>I'll try to test this. You'll have to explicitly state the encryption algo
>used since the pgp 2 file format doesn't specify it anywhere (and assumes
>just IDEA).


vulcan:~> pgp-2.6.3ia-multi6 -jd -c vraag.txt
3DES chosen for conventional encryption.
Pretty Good Privacy(tm) 2.6.3ia-multi06 - Public-key encryption for the masses
(c) 1990-96 Philip Zimmermann, Phil's Pretty Good Software. 2002-04-22
International version - for use everywhere (including USA).
Current time: 2006/05/29 18:53 GMT

PGP is now using 3DES with MD5.

You need a pass phrase to encrypt the file.
Enter pass phrase:
Enter same pass phrase again: Just a moment....
Ciphertext file: vraag.txt.pgp

Decryption with gpg:

vulcan:~> gpg --cipher-algo=3des vraag.txt.pgp
gpg: assuming 3DES encrypted data
gpg: [don't know]: invalid packet (ctb=2b)
gpg: WARNING: message was not integrity protected
gpg: [don't know]: invalid packet (ctb=45)

ir. J.C.A. Wevers         //  Physics and science fiction site:
johanw at vulcan.xs4all.nl   //  http://www.xs4all.nl/~johanw/index.html
PGP/GPG public keys at http://www.xs4all.nl/~johanw/pgpkeys.html

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