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Download Area - How to install and use gpg-agent?

Depending on your GNU/Linux distribution, you can find precompiled packages.

• Debian GNU/Linux and derivates (Ubuntu, Knoppix...): gnupg-agent (install with Synaptic, apt-get or dkpg)
• Gentoo GNU/Linux: gpg-agent (install with emerge)
• RPM-based (RedHat, Fedora...): gnupg2 (install with yum, apt-get for RPM or rpm)

Here is how to use gpg-agent in a simple way:

eval `gpg-agent --daemon` # start the daemon
gpg --sign -b --use-agent file.tar.gz # asked passphrase
gpg --sign -b --use-agent file2.tar.gz # did not ask passphrase
# ...
killall gpg-agent # stop the daemon

And here are some details on how I (Sylvain) manually compiled it on my old laptop running Red Hat GNU/Linux 7.3:

1. First, I installed some dependencies. I installed them from source.
   • gettext v0.14.1 (ftp://ftp.gnu.org/gnu/gettext/gettext-0.14.1.tar.gz)
     Here is how I installed it. I will use a terser description in the rest of this document ('$' is the prompt):

     $ wget ftp://ftp.gnu.org/gnu/gettext/gettext-0.14.1.tar.gz
     $ tar zxf gettext-0.14.1.tar.gz
     $ cd gettext-0.14.1
     $ ./configure --prefix=/usr && make
     $ make install # as root
     

     I had to manually overwrite /bin/gettext:

     $ ln -fs /usr/bin/gettext /bin
     

     Also, note that I used the /usr prefix, so as to overwrite the previous version. That way, ./configure will not detect the old version instead of the old one.

   • libgpg-error-0.7 (ftp://ftp.gnupg.org/gcrypt/alpha/libgpg-error/libgpg-error-0.7.tar.gz)
   • libgcrypt-1.1.94 (ftp://ftp.gnupg.org/gcrypt/alpha/libgcrypt/libgcrypt-1.1.94.tar.gz)
   • libassuan-0.6.6 (ftp://ftp.gnupg.org/gcrypt/alpha/libassuan/libassuan-0.6.6.tar.gz)
   • libksba-0.9.7 (ftp://ftp.gnupg.org/gcrypt/alpha/libksba/libksba-0.9.7.tar.gz)

     ./configure && make && make install

   • pth-1.4.0 (ftp://ftp.gnu.org/gnu/pth/pth-1.4.0.tar.gz)

     ./configure --prefix=/usr && make && make install

2. Then I compiled gpg-agent:

   cvs -d:pserver:anoncvs@cvs.gnupg.org:/cvs/gnupg login # pass == anoncvs
   cvs -d:pserver:anoncvs@cvs.gnupg.org:/cvs/gnupg co -r V1-9-9 gnupg
   sh autogen.sh # maybe you will have to update your autotools
   ./configure
   make
   cd agent
   make install
   

3. Then I compiled pinentry:

   cvs -d:pserver:anoncvs@cvs.gnupg.org:/cvs/aegypten login # pass == anoncvs
   cvs -d:pserver:anoncvs@cvs.gnupg.org:/cvs/aegypten co pinentry
   sh autogen.sh
   ./configure && make && make install
   

4. Last, I configured gpg-agent:

   echo "default-cache-ttl 600" > ~/.gnupg/gpg-agent.conf # remembers the passphrase for 10mn (optional)
   echo "pinentry-program /usr/local/bin/pinentry-gtk" >> ~/.gnupg/gpg-agent.conf # uses the GTK mode, the ncurses mode did not work for me
   

Updated $Date: 2005/05/04 19:10:19 $

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