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69 lines
1.9 KiB
Markdown
69 lines
1.9 KiB
Markdown
hash_password(1) -- Calculate the hash of a new password, so that passwords can be reset
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========================================================================================
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## SYNOPSIS
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`hash_password` [`-p`|`--password` [password]] [`-c`|`--config` <file>]
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## DESCRIPTION
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**hash_password** calculates the hash of a supplied password using bcrypt.
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`hash_password` takes a password as an parameter either on the command line
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or the `STDIN` if not supplied.
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It accepts an YAML file which can be used to specify parameters like the
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number of rounds for bcrypt and password_config section having the pepper
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value used for the hashing. By default `bcrypt_rounds` is set to **12**.
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The hashed password is written on the `STDOUT`.
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## FILES
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A sample YAML file accepted by `hash_password` is described below:
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bcrypt_rounds: 17
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password_config:
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pepper: "random hashing pepper"
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## OPTIONS
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* `-p`, `--password`:
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Read the password form the command line if [password] is supplied.
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If not, prompt the user and read the password form the `STDIN`.
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It is not recommended to type the password on the command line
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directly. Use the STDIN instead.
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* `-c`, `--config`:
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Read the supplied YAML <file> containing the options `bcrypt_rounds`
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and the `password_config` section containing the `pepper` value.
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## EXAMPLES
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Hash from the command line:
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$ hash_password -p "p@ssw0rd"
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$2b$12$VJNqWQYfsWTEwcELfoSi4Oa8eA17movHqqi8.X8fWFpum7SxZ9MFe
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Hash from the STDIN:
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$ hash_password
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Password:
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Confirm password:
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$2b$12$AszlvfmJl2esnyhmn8m/kuR2tdXgROWtWxnX.rcuAbM8ErLoUhybG
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Using a config file:
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$ hash_password -c config.yml
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Password:
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Confirm password:
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$2b$12$CwI.wBNr.w3kmiUlV3T5s.GT2wH7uebDCovDrCOh18dFedlANK99O
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## COPYRIGHT
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This man page was written by Rahul De <<rahulde@swecha.net>>
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for Debian GNU/Linux distribution.
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## SEE ALSO
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synctl(1), synapse_port_db(1), register_new_matrix_user(1), synapse_review_recent_signups(1)
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