NAME

       hash_password - Calculate the hash of a new password, so that passwords can be reset

SYNOPSIS

       hash_password [-p|--password [password]] [-c|--config file]

DESCRIPTION

       hash_password calculates the hash of a supplied password using bcrypt.

       hash_password  takes a password as an parameter either on the command line or the STDIN if
       not supplied.

       It accepts an YAML file which can be used to specify parameters like the number of  rounds
       for  bcrypt  and  password_config section having the pepper value used for the hashing. By
       default bcrypt_rounds is set to 10.

       The hashed password is written on the STDOUT.

FILES

       A sample YAML file accepted by hash_password is described below:

       bcrypt_rounds: 17 password_config: pepper: "random hashing pepper"

OPTIONS

       -p, --password
              Read the password form the command line if [password] is supplied. If  not,  prompt
              the  user  and  read the password form the STDIN. It is not recommended to type the
              password on the command line directly. Use the STDIN instead.

       -c, --config
              Read  the  supplied  YAML  file  containing  the  options  bcrypt_rounds  and   the
              password_config section containing the pepper value.

EXAMPLES

       Hash from the command line:

           $ hash_password -p "p@ssw0rd"
           $2b$12$VJNqWQYfsWTEwcELfoSi4Oa8eA17movHqqi8.X8fWFpum7SxZ9MFe

       Hash from the STDIN:

           $ hash_password
           Password:
           Confirm password:
           $2b$12$AszlvfmJl2esnyhmn8m/kuR2tdXgROWtWxnX.rcuAbM8ErLoUhybG

       Using a config file:

           $ hash_password -c config.yml
           Password:
           Confirm password:
           $2b$12$CwI.wBNr.w3kmiUlV3T5s.GT2wH7uebDCovDrCOh18dFedlANK99O

COPYRIGHT

       This  man  page  was  written  by  Rahul  De  <rahulde@swecha.net>  for  Debian  GNU/Linux
       distribution.

SEE ALSO

       synctl(1), synapse_port_db(1), register_new_matrix_user(1)

                                          February 2017                          HASH_PASSWORD(1)