PASSWD
Section: OpenSSL (1)
Updated: 2019-02-26
Page Index
NAME
openssl-passwd,
passwd - compute password hashes
SYNOPSIS
openssl passwd
[
-crypt]
[
-1]
[
-apr1]
[
-salt string]
[
-in file]
[
-stdin]
[
-noverify]
[
-quiet]
[
-table]
{
password}
DESCRIPTION
The
passwd command computes the hash of a password typed at
run-time or the hash of each password in a list. The password list is
taken from the named file for option
-in file, from stdin for
option
-stdin, or from the command line, or from the terminal otherwise.
The Unix standard algorithm
crypt and the MD5-based
BSD password
algorithm
1 and its Apache variant
apr1 are available.
OPTIONS
- -crypt
-
Use the crypt algorithm (default).
- -1
-
Use the MD5 based BSD password algorithm 1.
- -apr1
-
Use the apr1 algorithm (Apache variant of the BSD algorithm).
- -salt string
-
Use the specified salt.
When reading a password from the terminal, this implies -noverify.
- -in file
-
Read passwords from file.
- -stdin
-
Read passwords from stdin.
- -noverify
-
Don't verify when reading a password from the terminal.
- -quiet
-
Don't output warnings when passwords given at the command line are truncated.
- -table
-
In the output list, prepend the cleartext password and a TAB character
to each password hash.
EXAMPLES
openssl passwd -crypt -salt xx password prints
xxj31ZMTZzkVA.
openssl passwd -1 -salt xxxxxxxx password prints $1$xxxxxxxx$UYCIxa628.9qXjpQCjM4a..
openssl passwd -apr1 -salt xxxxxxxx password prints $apr1$xxxxxxxx$dxHfLAsjHkDRmG83UXe8K0.