20875N/A - Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC") 20875N/A - Copyright (C) 2000-2003 Internet Software Consortium. 20875N/A - Permission to use, copy, modify, and distribute this software for any 20875N/A - purpose with or without fee is hereby granted, provided that the above 20875N/A - copyright notice and this permission notice appear in all copies. 20875N/A - THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 20875N/A - REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 20875N/A - AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 20875N/A - INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 20875N/A - LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 20875N/A - OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 20875N/A - PERFORMANCE OF THIS SOFTWARE. 20875N/A<
meta http-
equiv="Content-Type" content="text/html; charset=ISO-8859-1">
20875N/A<
meta name="generator" content="DocBook XSL Stylesheets V1.70.1">
20875N/A<
body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><
div class="refentry" lang="en">
20875N/A<
p><
span class="application">dnssec-keygen</
span> — DNSSEC key generation tool</
p>
20875N/A<
div class="cmdsynopsis"><
p><
code class="command">dnssec-keygen</
code> {-a <
em class="replaceable"><
code>algorithm</
code></
em>} {-b <
em class="replaceable"><
code>keysize</
code></
em>} {-n <
em class="replaceable"><
code>nametype</
code></
em>} [<
code class="option">-c <
em class="replaceable"><
code>class</
code></
em></
code>] [<
code class="option">-e</
code>] [<
code class="option">-f <
em class="replaceable"><
code>flag</
code></
em></
code>] [<
code class="option">-g <
em class="replaceable"><
code>generator</
code></
em></
code>] [<
code class="option">-h</
code>] [<
code class="option">-k</
code>] [<
code class="option">-p <
em class="replaceable"><
code>protocol</
code></
em></
code>] [<
code class="option">-r <
em class="replaceable"><
code>randomdev</
code></
em></
code>] [<
code class="option">-s <
em class="replaceable"><
code>strength</
code></
em></
code>] [<
code class="option">-t <
em class="replaceable"><
code>type</
code></
em></
code>] [<
code class="option">-v <
em class="replaceable"><
code>level</
code></
em></
code>] {name}</
p></
div>
20875N/A<
div class="refsect1" lang="en">
20875N/A<
a name="id2549531"></
a><
h2>DESCRIPTION</
h2>
20875N/A<
p><
span><
strong class="command">dnssec-keygen</
strong></
span>
20875N/A generates keys for DNSSEC (Secure DNS), as defined in RFC 2535
20875N/A and RFC <TBA\>. It can also generate keys for use with
20875N/A TSIG (Transaction Signatures), as defined in RFC 2845.
20875N/A<
div class="refsect1" lang="en">
20875N/A<
a name="id2549543"></
a><
h2>OPTIONS</
h2>
20875N/A<
dt><
span class="term">-a <
em class="replaceable"><
code>algorithm</
code></
em></
span></
dt>
20875N/A Selects the cryptographic algorithm. The value of
20875N/A <
code class="option">algorithm</
code> must be one of RSAMD5 (RSA) or RSASHA1,
20875N/A DSA, DH (Diffie Hellman), or HMAC-MD5. These values
20875N/A Note 1: that for DNSSEC, RSASHA1 is a mandatory to implement
20875N/A and DSA is recommended. For TSIG, HMAC-MD5 is mandatory.
20875N/A Note 2: HMAC-MD5 and DH automatically set the -k flag.
20875N/A<
dt><
span class="term">-b <
em class="replaceable"><
code>keysize</
code></
em></
span></
dt>
20875N/A Specifies the number of bits in the key. The choice of key
20875N/A size depends on the algorithm used. RSAMD5 / RSASHA1 keys must be
20875N/A 512 and 2048 bits. Diffie Hellman keys must be between
20875N/A 128 and 4096 bits. DSA keys must be between 512 and 1024
20875N/A bits and an exact multiple of 64. HMAC-MD5 keys must be
20875N/A<
dt><
span class="term">-n <
em class="replaceable"><
code>nametype</
code></
em></
span></
dt>
20875N/A Specifies the owner type of the key. The value of
20875N/A <
code class="option">nametype</
code> must either be ZONE (for a DNSSEC
20875N/A USER (for a key associated with a user(KEY)) or OTHER (DNSKEY).
20875N/A<
dt><
span class="term">-c <
em class="replaceable"><
code>class</
code></
em></
span></
dt>
20875N/A Indicates that the DNS record containing the key should have
20875N/A the specified class. If not specified, class IN is used.
20875N/A<
dt><
span class="term">-e</
span></
dt>
20875N/A<
dt><
span class="term">-f <
em class="replaceable"><
code>flag</
code></
em></
span></
dt>
20875N/A The only recognized flag is KSK (Key Signing Key) DNSKEY.
20875N/A<
dt><
span class="term">-g <
em class="replaceable"><
code>generator</
code></
em></
span></
dt>
20875N/A If generating a Diffie Hellman key, use this generator.
20875N/A Allowed values are 2 and 5. If no generator
20875N/A is specified, a known prime from RFC 2539 will be used
20875N/A if possible; otherwise the default is 2.
20875N/A<
dt><
span class="term">-h</
span></
dt>
20875N/A Prints a short summary of the options and arguments to
20875N/A <
span><
strong class="command">dnssec-keygen</
strong></
span>.
20875N/A<
dt><
span class="term">-k</
span></
dt>
20875N/A Generate KEY records rather than DNSKEY records.
20875N/A<
dt><
span class="term">-p <
em class="replaceable"><
code>protocol</
code></
em></
span></
dt>
20875N/A Sets the protocol value for the generated key. The protocol
20875N/A is a number between 0 and 255. The default is 3 (DNSSEC).
20875N/A Other possible values for this argument are listed in
20875N/A<
dt><
span class="term">-r <
em class="replaceable"><
code>randomdev</
code></
em></
span></
dt>
20875N/A Specifies the source of randomness. If the operating
20875N/A or equivalent device, the default source of randomness
20875N/A is keyboard input. <
code class="filename">randomdev</
code>
20875N/A the name of a character device or file containing random
20875N/A data to be used instead of the default. The special value
20875N/A <
code class="filename">keyboard</
code> indicates that keyboard
20875N/A<
dt><
span class="term">-s <
em class="replaceable"><
code>strength</
code></
em></
span></
dt>
20875N/A Specifies the strength value of the key. The strength is
20875N/A a number between 0 and 15, and currently has no defined
20875N/A<
dt><
span class="term">-t <
em class="replaceable"><
code>type</
code></
em></
span></
dt>
20875N/A Indicates the use of the key. <
code class="option">type</
code> must be
20875N/A one of AUTHCONF, NOAUTHCONF, NOAUTH, or NOCONF. The default
20875N/A is AUTHCONF. AUTH refers to the ability to authenticate
20875N/A data, and CONF the ability to encrypt data.
20875N/A<
dt><
span class="term">-v <
em class="replaceable"><
code>level</
code></
em></
span></
dt>
20875N/A<
div class="refsect1" lang="en">
20875N/A<
a name="id2549946"></
a><
h2>GENERATED KEYS</
h2>
20875N/A When <
span><
strong class="command">dnssec-keygen</
strong></
span> completes
20875N/A it prints a string of the form <
code class="filename">Knnnn.+aaa+iiiii</
code>
20875N/A to the standard output. This is an identification string for
20875N/A<
div class="itemizedlist"><
ul type="disc">
20875N/A<
li><
p><
code class="filename">nnnn</
code> is the key name.
20875N/A<
li><
p><
code class="filename">aaa</
code> is the numeric representation
20875N/A<
li><
p><
code class="filename">iiiii</
code> is the key identifier (or
20875N/A<
p><
span><
strong class="command">dnssec-keygen</
strong></
span>
20875N/A creates two file, with names based
20875N/A The <
code class="filename">.key</
code> file contains a DNS KEY record
20875N/A can be inserted into a zone file (directly or with a $INCLUDE
20875N/A The <
code class="filename">.private</
code> file contains algorithm
20875N/A fields. For obvious security reasons, this file does not have
20875N/A Both <
code class="filename">.key</
code> and <
code class="filename">.private</
code>
20875N/A files are generated for symmetric encryption algorithm such as
20875N/A HMAC-MD5, even though the public and private key are equivalent.
20875N/A<
div class="refsect1" lang="en">
20875N/A<
a name="id2550028"></
a><
h2>EXAMPLE</
h2>
20875N/A To generate a 768-bit DSA key for the domain
20875N/A <
strong class="userinput"><
code>
example.com</
code></
strong>, the following command would be
20875N/A<
p><
strong class="userinput"><
code>dnssec-keygen -a DSA -b 768 -n ZONE
example.com</
code></
strong>
20875N/A The command would print a string of the form:
20875N/A In this example, <
span><
strong class="command">dnssec-keygen</
strong></
span> creates
20875N/A<
div class="refsect1" lang="en">
20875N/A<
a name="id2550072"></
a><
h2>SEE ALSO</
h2>
20875N/A<
p><
span class="citerefentry"><
span class="refentrytitle">dnssec-signzone</
span>(8)</
span>,
20875N/A <
em class="citetitle">BIND 9 Administrator Reference Manual</
em>,
20875N/A <
em class="citetitle">RFC 2535</
em>,
20875N/A <
em class="citetitle">RFC 2845</
em>,
20875N/A <
em class="citetitle">RFC 2539</
em>.
20875N/A<
div class="refsect1" lang="en">
20875N/A<
a name="id2550103"></
a><
h2>AUTHOR</
h2>
20875N/A<
p><
span class="corpauthor">Internet Systems Consortium</
span>