1AMCRYPTSIMPLE(8)        System Administration Commands        AMCRYPTSIMPLE(8)
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NAME

6       amcryptsimple - reference simple crypt program for Amanda symmetric
7       data encryption
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SYNOPSIS

10       amcryptsimple  to be called by Amanda only
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DESCRIPTION

13       amcryptsimple calls gpg to perform symmetric data encryption on Amanda
14       backup.  amcryptsimple will search for the gpg program in the following
15       directories: /usr/local/bin:/usr/bin:/usr/sbin:/bin:/sbin
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17       amcryptsimple uses one passphrase to encrypt the Amanda data and uses
18       the same passphrase to decrypt the Amanda backup data.  amcryptsimple
19       uses AES256 as the symmetric cipher.
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HOW TO CREATE PASSPHRASE

22       Store the passphrase inside the home-directory of the Amanda user
23       ($amanda_user) and protect it with proper permissions:
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25       echo my_secret_passphrase > ~$amanda_user/.am_passphrase
26       chown $amanda_user:disk ~$amanda_user/.am_passphrase
27       chmod 700 ~$amanda_user/.am_passphrase
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NOTES

30       Choose a good passphrase and protect it properly. Backup data can only
31       be restored with the passphrase. There is no backdoor.
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33       If storing and securing passphrase in your environment presents
34       challenges, Amanda provide public-key data encryption through
35       amgpgcrypt. Public-key encryption uses the public key to encrypt and
36       uses the private key to decrypt.
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SEE ALSO

39       amanda(8), amanda.conf(5), amcrypt(8), amgpgcrypt(8), amrestore(8),
40       gpg(1)
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42       The Amanda Wiki: : http://wiki.zmanda.com/
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AUTHOR

45       Kevin Till <kevin.till@zmanda.com>
46           Zmanda, Inc. (http://www.zmanda.com)
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50Amanda 3.5.4                      07/27/2023                  AMCRYPTSIMPLE(8)