AVIRA ANTIVIR VIRUS SCAN ADAPTER FOR SAP SOLUTIONS Manuale Utente Scaricare il pdf (Pagina 28)

28 Avira AntiVir Virus Scan Adapter Avira GmbH

Verifying Updates Authenticity with GnuPG

GnuPG is a free alternative to the encryption program PGP (Pretty Good Privacy). Using

GnuPG you can verify the authenticity of the AntiVir Updates.

Follow these steps to activate GnuPG support:

 Download GnuPG from the website http://www.gnupg.org. Here you can also find

the manual with further information on GnuPG and its features.

 Generate your own PGP key pair, as described in the documentation.

 Import the AntiVir public PGP key to your key-ring:

gpg --import antivir.gpg

– OR –

Import the AntiVir public key directly from the key server:

gpg --keyserver=wwwkeys.pgp.net --recv-keys 0F821C2E

 Display the fingerprint of the key to check if it really is the AntiVir PGP key:

gpg --fingerprint build@avira.com

 The 40-character fingerprint is displayed.

 Check whether the fingerprint corresponds with the one on the AntiVir website

(http://www.avira.com).

 Sign the AntiVir public key in order to certify its validity:

 Change to the /bin sub-directory of the AntiVir installation directory (example):

cd /tmp/antivir-vsa-prof-<version>/bin

 Here you can find the files antivir and antivir.asc.

 Check the signature with:

gpg --verify antivir.asc antivir

 If you do not get any error message, you can use GnuPG for AntiVir updates.

 Activate GnuPG for AntiVir. In /etc/avupdater.conf enter the path to GnuPG binaries,

using the option GnuPGBinary:

GnuPGBinary /usr/local/bin/gpg

 Restart Internet Update Daemon to activate the new settings in avupdater.conf:

/usr/lib/AntiVir/avupdater restart

 From now on, GnuPG authenticates the updates.

It is highly recommended to use GnuPG.

However, this procedure requires extensive knowledge of UNIX and

GnuPG. In the event of configuration errors, there is the danger of

deactivating AntiVir updates.

The user running updates on the computer has to perform these

steps. Usually it has to be a user with administrator rights.

You can find more details of GnuPG at http://www.gnupg.org

You can only edit this option in avupdater.conf manually. Setting in

the configuration script is not possible in order to avoid the danger of

configuration errors.

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AVIRA ANTIVIR VIRUS SCAN ADAPTER FOR SAP SOLUTIONS Manuale Utente Pagina 28