encrypt with GPG 1.0.4 decrypt with ViaCrypt 4.0 problem

[Alex Frenklakh]

Len,

thanks for your suggestions,

It looks like Viacrypt 4.0 might be using a hybrid cipher of
RSA/IDEA and we'd have to modify our gnupg with the idea.c 
fix, which violates the US patent, as I understand.
Not sure whether it's the V3 RSA key problem .. have to look into
that.

--
Alex Frenklakh
Developer
GlobeOp Financial Services
afrenkla@globeop.com <mailto:afrenkla@globeop.com>


-----Original Message-----
From: Len Sassaman [mailto:rabbi@quickie.net]
Sent: Wednesday, October 03, 2001 3:08 PM
To: Alex Frenklakh
Cc: 'gnupg-users@gnupg.org'
Subject: Re: encrypt with GPG 1.0.4 decrypt with ViaCrypt 4.0 problem


Viacrypt 4.0 is basically PGP 2.x.

See: http://www.gnupg.org/gph/en/pgp2x.html

Note that there are currently problems doing encrypt+sign functions with
GnuPG using a v3 RSA key. (I don't believe this has been fixed ever.)

On Wed, 3 Oct 2001, Alex Frenklakh wrote:

> hi,
> A client is attempting to decrypt a message with ViaCrypt 4.0 that we
> encrypt
> with GPG 1.0.4 using the key they sent us..
>
> they get the following message:
>
> Unsupported packet format - you need a newer version of PGP for this file.
> Problem with pgp-fmt data from armored file.
> Cannot process input from:  datadump.pgp
> Error code =  8
>
> could this have to do with the single/double function key problem
described
> by ViaCrypt on
> alt.security.pgp newsgroup:
>
> are  there any other issues that you are aware of?
>
>
>
http://groups.google.com/groups?q=pgp+4.0+Unsupported+packet+format+-+you+ne
>
ed+a+newer+version+of+PGP+for+this+file+gpg&hl=en&rnum=1&selm=4j0r5v%241vg%4
> 0news2.cais.com
>
>
> thanks,
>
> --
> Alex Frenklakh
> Developer
> GlobeOp Financial Services
> afrenkla@globeop.com <mailto:afrenkla@globeop.com>
>
>
>
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--

Len Sassaman

Security Architect            |  "I must play their game, of
Technology Consultant         |   not seeing I see the game."
                              |
http://sion.quickie.net       |                --R. D. Laing










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