passwd.pod revision 59191 
1=pod
2
3=head1 NAME
4
5passwd - compute password hashes
6
7=head1 SYNOPSIS
8
9B<openssl passwd>
10[B<-crypt>]
11[B<-apr1>]
12[B<-salt> I<string>]
13[B<-in> I<file>]
14[B<-stdin>]
15[B<-quiet>]
16[B<-table>]
17{I<password>}
18
19=head1 DESCRIPTION
20
21The B<passwd> command computes the hash of a password typed at
22run-time or the hash of each password in a list.  The password list is
23taken from the named file for option B<-in file>, from stdin for
24option B<-stdin>, and from the command line otherwise.
25The Unix standard algorithm B<crypt> and the MD5-based B<apr1> algorithm
26are available.
27
28=head1 OPTIONS
29
30=over 4
31
32=item B<-crypt>
33
34Use the B<crypt> algorithm (default).
35
36=item B<-apr1>
37
38Use the B<apr1> algorithm.
39
40=item B<-salt> I<string>
41
42Use the specified salt.
43
44=item B<-in> I<file>
45
46Read passwords from I<file>.
47
48=item B<-stdin>
49
50Read passwords from B<stdin>.
51
52=item B<-quiet>
53
54Don't output warnings when passwords given at the command line are truncated.
55
56=item B<-table>
57
58In the output list, prepend the cleartext password and a TAB character
59to each password hash.
60
61=back
62
63=head1 EXAMPLES
64
65B<openssl passwd -crypt -salt xx password> prints B<xxj31ZMTZzkVA>.
66
67B<openssl passwd -apr1 -salt xxxxxxxx password> prints B<$apr1$xxxxxxxx$dxHfLAsjHkDRmG83UXe8K0>.
68
69=cut
70