2 .\" Title: amcryptsimple
3 .\" Author: Kevin Till <kevin.till@zmanda.com>
4 .\" Generator: DocBook XSL Stylesheets vsnapshot_8273 <http://docbook.sf.net/>
6 .\" Manual: System Administration Commands
7 .\" Source: Amanda 3.2.1
10 .TH "AMCRYPTSIMPLE" "8" "12/14/2010" "Amanda 3\&.2\&.1" "System Administration Commands"
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22 amcryptsimple \- reference simple crypt program for Amanda symmetric data encryption
24 .HP \w'\fBamcryptsimple\fR\ 'u
25 \fBamcryptsimple\fR to be called by Amanda only
32 to perform symmetric data encryption on Amanda backup\&.
34 will search for the gpg program in the following directories: /usr/local/bin:/usr/bin:/usr/sbin:/bin:/sbin
38 uses one passphrase to encrypt the Amanda data and uses the same passphrase to decrypt the Amanda backup data\&.
40 uses AES256 as the symmetric cipher\&.
41 .SH "HOW TO CREATE PASSPHRASE"
43 Store the passphrase inside the home\-directory of the Amanda user ($amanda_user) and protect it with proper permissions:
46 echo my_secret_passphrase > ~$amanda_user/\&.am_passphrase
47 chown $amanda_user:disk ~$amanda_user/\&.am_passphrase
48 chmod 700 ~$amanda_user/\&.am_passphrase
52 Choose a good passphrase and protect it properly\&. Backup data can only be restored with the passphrase\&. There is no backdoor\&.
54 If storing and securing passphrase in your environment presents challenges, Amanda provide public\-key data encryption through
55 \fBamgpgcrypt\fR\&. Public\-key encryption uses the public key to encrypt and uses the private key to decrypt\&.
66 : http://wiki.zmanda.com/
69 \fBKevin Till\fR <\&kevin\&.till@zmanda\&.com\&>
71 Zmanda, Inc\&. (http://www\&.zmanda\&.com)