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<?php
putenv("GNUPGHOME=~/.gnupg");
$pubkey = "-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.13 (FreeBSD)
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=aUru
-----END PGP PUBLIC KEY BLOCK-----";

    # Crypt functions



    function encrypt_string($str,$pubkey) {
        $res = gnupg_init();
        $pubkey = gnupg_import($res, $pubkey);
        $fingerprint = $pubkey['fingerprint'];
        gnupg_addencryptkey($res,$fingerprint);
        $enc = gnupg_encrypt($res, $str);
        gnupg_deletekey($res,$fingerprint,TRUE);
        return $enc;
    }

    function decrypt_string($str,$privkey,$passphrase) {
        $res = gnupg_init();
        $privkey = gnupg_import($res, $privkey);
        $fingerprint = $privkey['fingerprint'];
        gnupg_adddecryptkey($res,$fingerprint,$passphrase);
        $dec = gnupg_decrypt($res, $str);
        gnupg_deletekey($res,$fingerprint,TRUE);
        return $dec;
    }



echo encrypt_string('312', $pubkey);

?>