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I want to know how can I create an encrypted password in Ubuntu 14.04 LTS. Tried this:
makepasswd --crypt-md5 password_here
It did not work for me. It is throwing this Error:
sysadmin@localhost:~$ makepasswd --crypt-md5 admin123
makepasswd: Non-argument options specified: admin123
makepasswd: For more information, type: makepasswd --help
I want to add those encrypted password in one of the installation so I need the way of doing it.
Another way is this: openssl passwd -1 -stdin <<< password_here
This does not show the password on the process list. For more options see openssl passwd --help
read -p "Enter password: " -s PASSWORD; echo; openssl passwd -1 -stdin <<< $PASSWORD.
# echo -n admin123 | makepasswd --crypt-md5 --clearfrom -
admin123 $1$ZUNNSLzQ$XsViFC1bhucsr3f8AzMPt/
As commented bellow this command is unsecure. True method - write password in file with text editor, and read password from file.
makepasswd doesn't read the password as an argument is that arguments are visible to anyone with access to the server, simply by running ps. Thus by putting it as an argument to echo, you're making it visible.
makepasswd would expose it to other users via ps, but not passing it to echo. echo is a builtin in all contemporary shells. Command history, on the other hand, is a good reason not to do it this way — alternatively, you can disable command history for the duration.
Jun 6, 2014 at 22:58
Your method doesn't work because makepasswd doesn't accept a password as argument, you should create a temporary clear text file instead to make the password if you want to generate the hash based on a password:
➜ ~ makepasswd --crypt-md5 --clearfrom file
admin123 $1$iQd/ujH.$rMXZiYwQC1Rc/rgO3.FeX/
Of course, do not use the command line to store the password as it will be accessible by anyone that can read your command history or process arguments.
Just run:
openssl passwd -6 -stdin
and then type/paste your password, then ENTER, then Ctrl+D ("end of file"). No password will be seen in process list and no password will be saved into shell history.
See more password algorithms with:
% openssl passwd -help
Usage: passwd [options]
Valid options are:
-help Display this summary
-in infile Read passwords from file
-noverify Never verify when reading password from terminal
-quiet No warnings
-table Format output as table
-reverse Switch table columns
-salt val Use provided salt
-stdin Read passwords from stdin
-6 SHA512-based password algorithm
-5 SHA256-based password algorithm
-apr1 MD5-based password algorithm, Apache variant
-1 MD5-based password algorithm
-aixmd5 AIX MD5-based password algorithm
-crypt Standard Unix password algorithm (default)
-rand val Load the file(s) into the random number generator
-writerand outfile Write random data to the specified file
You can instead use AES(Advanced Enryption Standard) Algorithm, which is open source and comparatively much secured to encrypt your password.
references: https://www.aescrypt.com/
