5 passwd - compute password hashes
23 The B<passwd> command computes the hash of a password typed at
24 run-time or the hash of each password in a list. The password list is
25 taken from the named file for option B<-in file>, from stdin for
26 option B<-stdin>, or from the command line, or from the terminal otherwise.
27 The Unix standard algorithm B<crypt> and the MD5-based BSD password
28 algorithm B<1> and its Apache variant B<apr1> are available.
36 Use the B<crypt> algorithm (default).
40 Use the MD5 based BSD password algorithm B<1>.
44 Use the B<apr1> algorithm (Apache variant of the BSD algorithm).
46 =item B<-salt> I<string>
48 Use the specified salt.
49 When reading a password from the terminal, this implies B<-noverify>.
53 Read passwords from I<file>.
57 Read passwords from B<stdin>.
61 Don't verify when reading a password from the terminal.
65 Don't output warnings when passwords given at the command line are truncated.
69 In the output list, prepend the cleartext password and a TAB character
70 to each password hash.
76 B<openssl passwd -crypt -salt xx password> prints B<xxj31ZMTZzkVA>.
78 B<openssl passwd -1 -salt xxxxxxxx password> prints B<$1$xxxxxxxx$UYCIxa628.9qXjpQCjM4a.>.
80 B<openssl passwd -apr1 -salt xxxxxxxx password> prints B<$apr1$xxxxxxxx$dxHfLAsjHkDRmG83UXe8K0>.