McDougall, Marshall (STEM) wrote:
Hi All.
First postbe gentle :-}
I have a RHEL server and I am having difficulty decrypting a pgp
encrypted file. Near as I can tell, I need the IDEA cipher.
[EMAIL PROTECTED] gpg --decrypt myfile.txt
gpg: protection algorithm 1 (IDEA) is not supported
gpg: the IDEA cipher plugin is not present
gpg: please see http://www.gnupg.org/why-not-idea.html for more
information
gpg: encrypted with 1024-bit RSA key, ID C0A298D3, created 2004-07-13
one_of_my_keys
gpg: public key decryption failed: unknown cipher algorithm
gpg: decryption failed: secret key not available
I roamed around the GNUPG site and found the idea.c.gz downloads, but
the instructions allude to directories that don't exist on my server.
Has anyone added IDEA to an existing canned redhat installation? I am
open to any suggestion. Thanks.
You can rebuild the gnupg srpm and add idea. A few small changes to
the spec file (like in the attached diff) should do what you want.
A better solution would be to have sender encrypt the file to you
using a cipher that you can use without any patents or other
encumbrances. Does your key have a cipher pref for IDEA? If so, you
should fix that so other people don't encrypt things to you that you
can't easily decrypt. You can view your prefs with:
$ gpg --edit-key C0A298D3 showpref quit
--
ToddOpenPGP - KeyID: 0xBEAF0CE3 | URL: www.pobox.com/~tmz/pgp
~~
I never met a morphosis I didn't like.
--- gnupg.spec~ 2007-03-01 07:47:37.0 -0500
+++ gnupg.spec 2008-01-23 14:40:16.0 -0500
@@ -1,12 +1,13 @@
Summary: A GNU utility for secure communication and data storage.
Name: gnupg
Version: 1.4.5
-Release: 13
+Release: 13.1
License: GPL
Group: Applications/System
Source0: ftp://ftp.gnupg.org/gcrypt/gnupg/gnupg-%{version}.tar.bz2
Source1: ftp://ftp.gnupg.org/gcrypt/gnupg/gnupg-%{version}.tar.bz2.sig
Source2: gnupg-shm-coprocessing.expect
+Source3: ftp://ftp.gnupg.dk/pub/contrib-dk/idea.c.gz
Patch0: gnupg-1.4.1-gcc.patch
Patch1: gnupg-1.4.2-curl.patch
Patch2: gnupg-1.4.5-CVE-2006-6169.patch
@@ -42,6 +43,7 @@
%patch4 -p0 -b .CVE-2006-6235
popd
%patch5 -p2 -b .multiple-message
+gunzip -c %{SOURCE3} cipher/idea.c
autoreconf
%build
@@ -109,6 +111,9 @@
%{_mandir}/man7/*
%changelog
+* Wed Jan 23 2008 Todd Zullinger [EMAIL PROTECTED] - 1.4.5-13.1
+- include the IDEA cipher
+
* Thu Mar 1 2007 Nalin Dahyabhai [EMAIL PROTECTED] - 1.4.5-13
- incorporate patch from Werner to work around clients which
can't tell that multiple plain messages have been processed (#230457)
pgpR8n9YbbxWy.pgp
Description: PGP signature
___
Gnupg-users mailing list
Gnupg-users@gnupg.org
http://lists.gnupg.org/mailman/listinfo/gnupg-users
