When you've successfully installed gnupg, you should define the GNUPGHOME environment variable and make sure the directory is writeable by the Apache user.
<?php
putenv("GNUPGHOME=/var/www/example.com/.gnupg");
?>
(PECL gnupg >= 0.5)
gnupg_addencryptkey — Añade una clave para cifrado
identifier
El identificador gnupg, generado por una llamada a la función gnupg_init() o a la función gnupg.
fingerprint
La huella de la clave.
Ejemplo #1 Ejemplo con gnupg_addencryptkey() (Estilo procedimental)
<?php
$res = gnupg_init();
gnupg_addencryptkey($res,"8660281B6051D071D94B5B230549F9DC851566DC");
?>
Ejemplo #2 Ejemplo con gnupg_addencryptkey() (Estilo orientado a objetos)
<?php
$gpg = new gnupg();
$gpg->addencryptkey("8660281B6051D071D94B5B230549F9DC851566DC");
?>
When you've successfully installed gnupg, you should define the GNUPGHOME environment variable and make sure the directory is writeable by the Apache user.
<?php
putenv("GNUPGHOME=/var/www/example.com/.gnupg");
?>
In this case, $fingerprint is the fingerprint of the public key whose private key shall be able to decrypt the text. The private key that you want to encrypt the text with has to be loaded via gnupg_addsignkey().