2 .\" Title: amcryptsimple
3 .\" Author: Kevin Till <kevin.till@zmanda.com>
4 .\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>
6 .\" Manual: System Administration Commands
7 .\" Source: Amanda 3.3.2
10 .TH "AMCRYPTSIMPLE" "8" "07/25/2012" "Amanda 3\&.3\&.2" "System Administration Commands"
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12 .\" * Define some portability stuff
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15 .\" http://bugs.debian.org/507673
16 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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21 .\" * set default formatting
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28 .\" * MAIN CONTENT STARTS HERE *
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31 amcryptsimple \- reference simple crypt program for Amanda symmetric data encryption
33 .HP \w'\fBamcryptsimple\fR\ 'u
34 \fBamcryptsimple\fR to be called by Amanda only
41 to perform symmetric data encryption on Amanda backup\&.
43 will search for the gpg program in the following directories: /usr/local/bin:/usr/bin:/usr/sbin:/bin:/sbin
47 uses one passphrase to encrypt the Amanda data and uses the same passphrase to decrypt the Amanda backup data\&.
49 uses AES256 as the symmetric cipher\&.
50 .SH "HOW TO CREATE PASSPHRASE"
52 Store the passphrase inside the home\-directory of the Amanda user ($amanda_user) and protect it with proper permissions:
55 echo my_secret_passphrase > ~$amanda_user/\&.am_passphrase
56 chown $amanda_user:disk ~$amanda_user/\&.am_passphrase
57 chmod 700 ~$amanda_user/\&.am_passphrase
61 Choose a good passphrase and protect it properly\&. Backup data can only be restored with the passphrase\&. There is no backdoor\&.
63 If storing and securing passphrase in your environment presents challenges, Amanda provide public\-key data encryption through
64 \fBamgpgcrypt\fR\&. Public\-key encryption uses the public key to encrypt and uses the private key to decrypt\&.
75 : http://wiki.zmanda.com/
78 \fBKevin Till\fR <\&kevin\&.till@zmanda\&.com\&>
80 Zmanda, Inc\&. (http://www\&.zmanda\&.com)