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How to install GNUPG PHP Extension
GnuPG is the GNU project’s complete and free implementation of the OpenPGP standard as defined by RFC4880 . GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories. GnuPG, also known as GPG, is a command line tool with features for easy integration with other applications.
Installation process is very straightforward provided you met the requirements like php-pear, gnupg, libgpg-error, and gpgme. You can install it directly from WHM -> Module Installers -> PHP Pecl, enter gnupg and click the Install button.
You can do the same via shell with this command pecl install gnupg.
Then restart your Apache.
/etc/init.d/httpd restart
Be sure to double check if the extension was added to you php.ini.
cat /usr/local/lib/php.ini | grep gnupg.so
or
You can download and install it from source.
http://pecl.php.net/package/gnupg/docs
Install requirements
On Cpanel servers most of the requirements are present, like php-pear (if you compiled your apache/php with pear), gnupg, libgpg-error, etc, except for gpgme which is the main library used by gnupg extension.
Install gpgme
You can install gpgme from rpm packages.
Download rpm from mirrors.
http://pkgs.org/centos-6-rhel-6/centos-rhel-x86_64/
gpgme rpm location.
wget http://mirror.centos.org/centos/6/os/x86_64/Packages/gpgme-1.1.8-3.el6.x86_64.rpm
rpm -ivh gpgme-1.1.8-3.el6.x86_64.rpm
If you have any dependancy errors, download it from mirrors and install it.
If you have encountered an error library path when I check the extension,
error while loading shared libraries: libgpgme.so.11: cannot open shared object file: No such file or directory
add /usr/local/lib to /etc/ld.so.conf and run ldconfig, so that libraries in this directory are detected automatically.
Verify gnupg extension with php.
root@server [~]# php -i | grep gnupg
gnupg
gnupg support => enabled
