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58 lines
2.1 KiB
58 lines
2.1 KiB
.\" generated with Ronn-NG/v0.8.0
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.\" http://github.com/apjanke/ronn-ng/tree/0.8.0
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.TH "HASH_PASSWORD" "1" "July 2021" "" ""
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.SH "NAME"
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\fBhash_password\fR \- Calculate the hash of a new password, so that passwords can be reset
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.SH "SYNOPSIS"
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\fBhash_password\fR [\fB\-p\fR|\fB\-\-password\fR [password]] [\fB\-c\fR|\fB\-\-config\fR \fIfile\fR]
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.SH "DESCRIPTION"
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\fBhash_password\fR calculates the hash of a supplied password using bcrypt\.
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.P
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\fBhash_password\fR takes a password as an parameter either on the command line or the \fBSTDIN\fR if not supplied\.
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.P
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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 \fBbcrypt_rounds\fR is set to \fB12\fR\.
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.P
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The hashed password is written on the \fBSTDOUT\fR\.
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.SH "FILES"
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A sample YAML file accepted by \fBhash_password\fR is described below:
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.P
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bcrypt_rounds: 17 password_config: pepper: "random hashing pepper"
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.SH "OPTIONS"
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.TP
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\fB\-p\fR, \fB\-\-password\fR
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Read the password form the command line if [password] is supplied\. If not, prompt the user and read the password form the \fBSTDIN\fR\. It is not recommended to type the password on the command line directly\. Use the STDIN instead\.
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.TP
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\fB\-c\fR, \fB\-\-config\fR
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Read the supplied YAML \fIfile\fR containing the options \fBbcrypt_rounds\fR and the \fBpassword_config\fR section containing the \fBpepper\fR value\.
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.SH "EXAMPLES"
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Hash from the command line:
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.IP "" 4
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.nf
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$ hash_password \-p "p@ssw0rd"
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$2b$12$VJNqWQYfsWTEwcELfoSi4Oa8eA17movHqqi8\.X8fWFpum7SxZ9MFe
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.fi
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.IP "" 0
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.P
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Hash from the STDIN:
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.IP "" 4
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.nf
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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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.fi
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.IP "" 0
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.P
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Using a config file:
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.IP "" 4
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.nf
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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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.fi
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.IP "" 0
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.SH "COPYRIGHT"
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This man page was written by Rahul De <\fI\%mailto:rahulde@swecha\.net\fR> for Debian GNU/Linux distribution\.
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.SH "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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