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+'\" t
+.\"     Title: nvme-gen-dhchap-key
+.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\"      Date: 11/25/2021
+.\"    Manual: NVMe Manual
+.\"    Source: NVMe
+.\"  Language: English
+.\"
+.TH "NVME\-GEN\-DHCHAP\-K" "1" "11/25/2021" "NVMe" "NVMe Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+nvme-gen-dhchap-key \- Generate a host DH\-HMAC\-CHAP key
+.SH "SYNOPSIS"
+.sp
+.nf
+\fInvme gen\-dhchap\-key\fR [\-\-hmac=<hmac\-id> | \-h <hmac\-id>]
+                      [\-\-secret=<secret> | \-s <secret> ]
+                      [\-\-key\-length=<len> | \-l <len> ]
+                      [\-\-nqn=<host\-nqn> | \-n <host\-nqn> ]
+.fi
+.SH "DESCRIPTION"
+.sp
+Generate a base64\-encoded DH\-HMAC\-CHAP host key in the form: DHHC\-1:00:ia6zGodOr4SEG0Zzaw398rpY0wqipUWj4jWjUh4HWUz6aQ2n: and prints it to stdout\&.
+.SH "OPTIONS"
+.PP
+\-h <hmac\-id>, \-\-hmac=<hmac\-id>
+.RS 4
+Select a HMAC algorithm to use\&. Possible values are: 0 \- No HMAC algorithm 1 \- SHA\-256 2 \- SHA\-384 3 \- SHA\-512
+.RE
+.PP
+\-s <secret>, \-\-secret=<secret>
+.RS 4
+Secret value (in hexadecimal) to be used for the key\&. If none are provided a random value is used\&.
+.RE
+.PP
+\-l <len>, \-\-key\-length=<len>
+.RS 4
+Length of the resulting key\&. Possible values are 32, 48, or 64\&.
+.RE
+.PP
+\-n <hostnqn>, \-\-nqn=<hostnqn>
+.RS 4
+Host\-NQN to be used for the transformation\&. This parameter is only valid if a non\-zero HMAC function has been specified\&.
+.RE
+.SH "EXAMPLES"
+.sp
+No Examples
+.SH "NVME"
+.sp
+Part of the nvme\-user suite