hash_password - Calculate the hash of a new password, so that passwords can be reset
hash_password [-p|--password [password]] [-c|--config file]
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.
A sample YAML file accepted by hash_password is described below:
bcrypt_rounds: 17 password_config: pepper: "random hashing pepper"
- -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.
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
This man page was written by Rahul De <firstname.lastname@example.org> for Debian GNU/Linux distribution.