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12779N/A<
tr><
th colspan="3" align="center"><
span class="application">dnssec-keygen</
span></
th></
tr>
12779N/A<
th width="60%" align="center">Manual pages</
th>
12779N/A<
div class="refentry" lang="en">
12779N/A<
p><
span class="application">dnssec-keygen</
span> — DNSSEC key generation tool</
p>
12779N/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>
12779N/A<
div class="refsect1" lang="en">
12779N/A<
a name="id2598784"></
a><
h2>DESCRIPTION</
h2>
12779N/A<
p><
span><
strong class="command">dnssec-keygen</
strong></
span>
12779N/A generates keys for DNSSEC (Secure DNS), as defined in RFC 2535
12779N/A and RFC 4034. It can also generate keys for use with
12779N/A TSIG (Transaction Signatures), as defined in RFC 2845.
12779N/A<
div class="refsect1" lang="en">
12779N/A<
a name="id2598797"></
a><
h2>OPTIONS</
h2>
12779N/A<
dt><
span class="term">-a <
em class="replaceable"><
code>algorithm</
code></
em></
span></
dt>
12779N/A Selects the cryptographic algorithm. The value of
12779N/A <
code class="option">algorithm</
code> must be one of RSAMD5 (RSA) or RSASHA1,
12779N/A DSA, DH (Diffie Hellman), or HMAC-MD5. These values
12779N/A Note 1: that for DNSSEC, RSASHA1 is a mandatory to implement
12779N/A and DSA is recommended. For TSIG, HMAC-MD5 is mandatory.
12779N/A Note 2: HMAC-MD5 and DH automatically set the -k flag.
12779N/A<
dt><
span class="term">-b <
em class="replaceable"><
code>keysize</
code></
em></
span></
dt>
12779N/A Specifies the number of bits in the key. The choice of key
12779N/A size depends on the algorithm used. RSAMD5 / RSASHA1 keys must be
12779N/A 512 and 2048 bits. Diffie Hellman keys must be between
12779N/A 128 and 4096 bits. DSA keys must be between 512 and 1024
12779N/A bits and an exact multiple of 64. HMAC-MD5 keys must be
12779N/A<
dt><
span class="term">-n <
em class="replaceable"><
code>nametype</
code></
em></
span></
dt>
12779N/A Specifies the owner type of the key. The value of
12779N/A <
code class="option">nametype</
code> must either be ZONE (for a DNSSEC
12779N/A USER (for a key associated with a user(KEY)) or OTHER (DNSKEY).
12779N/A These values are case insensitive. Defaults to ZONE for DNSKEY
12779N/A<
dt><
span class="term">-c <
em class="replaceable"><
code>class</
code></
em></
span></
dt>
12779N/A Indicates that the DNS record containing the key should have
12779N/A the specified class. If not specified, class IN is used.
12779N/A<
dt><
span class="term">-e</
span></
dt>
12779N/A<
dt><
span class="term">-f <
em class="replaceable"><
code>flag</
code></
em></
span></
dt>
12779N/A The only recognized flag is KSK (Key Signing Key) DNSKEY.
12779N/A<
dt><
span class="term">-g <
em class="replaceable"><
code>generator</
code></
em></
span></
dt>
12779N/A If generating a Diffie Hellman key, use this generator.
12779N/A Allowed values are 2 and 5. If no generator
12779N/A is specified, a known prime from RFC 2539 will be used
12779N/A if possible; otherwise the default is 2.
12779N/A<
dt><
span class="term">-h</
span></
dt>
12779N/A Prints a short summary of the options and arguments to
12779N/A <
span><
strong class="command">dnssec-keygen</
strong></
span>.
12779N/A<
dt><
span class="term">-k</
span></
dt>
12779N/A Generate KEY records rather than DNSKEY records.
12779N/A<
dt><
span class="term">-p <
em class="replaceable"><
code>protocol</
code></
em></
span></
dt>
12779N/A Sets the protocol value for the generated key. The protocol
12779N/A is a number between 0 and 255. The default is 3 (DNSSEC).
12779N/A Other possible values for this argument are listed in
12779N/A<
dt><
span class="term">-r <
em class="replaceable"><
code>randomdev</
code></
em></
span></
dt>
12779N/A Specifies the source of randomness. If the operating
12779N/A or equivalent device, the default source of randomness
12779N/A is keyboard input. <
code class="filename">randomdev</
code>
12779N/A the name of a character device or file containing random
12779N/A data to be used instead of the default. The special value
12779N/A <
code class="filename">keyboard</
code> indicates that keyboard
12779N/A<
dt><
span class="term">-s <
em class="replaceable"><
code>strength</
code></
em></
span></
dt>
12779N/A Specifies the strength value of the key. The strength is
12779N/A a number between 0 and 15, and currently has no defined
12779N/A<
dt><
span class="term">-t <
em class="replaceable"><
code>type</
code></
em></
span></
dt>
12779N/A Indicates the use of the key. <
code class="option">type</
code> must be
12779N/A one of AUTHCONF, NOAUTHCONF, NOAUTH, or NOCONF. The default
12779N/A is AUTHCONF. AUTH refers to the ability to authenticate
12779N/A data, and CONF the ability to encrypt data.
12779N/A<
dt><
span class="term">-v <
em class="replaceable"><
code>level</
code></
em></
span></
dt>
12779N/A<
div class="refsect1" lang="en">
12779N/A<
a name="id2599209"></
a><
h2>GENERATED KEYS</
h2>
12779N/A When <
span><
strong class="command">dnssec-keygen</
strong></
span> completes
12779N/A it prints a string of the form <
code class="filename">Knnnn.+aaa+iiiii</
code>
12779N/A to the standard output. This is an identification string for
12779N/A<
div class="itemizedlist"><
ul type="disc">
12779N/A<
li><
p><
code class="filename">nnnn</
code> is the key name.
12779N/A<
li><
p><
code class="filename">aaa</
code> is the numeric representation
12779N/A<
li><
p><
code class="filename">iiiii</
code> is the key identifier (or
12779N/A<
p><
span><
strong class="command">dnssec-keygen</
strong></
span>
12779N/A creates two files, with names based
12779N/A The <
code class="filename">.key</
code> file contains a DNS KEY record
12779N/A can be inserted into a zone file (directly or with a $INCLUDE
12779N/A The <
code class="filename">.private</
code> file contains
12779N/A fields. For obvious security reasons, this file does not have
12779N/A Both <
code class="filename">.key</
code> and <
code class="filename">.private</
code>
12779N/A files are generated for symmetric encryption algorithms such as
12779N/A HMAC-MD5, even though the public and private key are equivalent.
12779N/A<
div class="refsect1" lang="en">
12779N/A<
a name="id2600887"></
a><
h2>EXAMPLE</
h2>
12779N/A To generate a 768-bit DSA key for the domain
12779N/A <
strong class="userinput"><
code>
example.com</
code></
strong>, the following command would be
12779N/A<
p><
strong class="userinput"><
code>dnssec-keygen -a DSA -b 768 -n ZONE
example.com</
code></
strong>
12779N/A The command would print a string of the form:
12779N/A In this example, <
span><
strong class="command">dnssec-keygen</
strong></
span> creates
12779N/A<
div class="refsect1" lang="en">
12779N/A<
a name="id2600944"></
a><
h2>SEE ALSO</
h2>
12779N/A<
p><
span class="citerefentry"><
span class="refentrytitle">dnssec-signzone</
span>(8)</
span>,
12779N/A <
em class="citetitle">BIND 9 Administrator Reference Manual</
em>,
12779N/A <
em class="citetitle">RFC 2535</
em>,
12779N/A <
em class="citetitle">RFC 2845</
em>,
12779N/A <
em class="citetitle">RFC 2539</
em>.
12779N/A<
div class="refsect1" lang="en">
12779N/A<
a name="id2601316"></
a><
h2>AUTHOR</
h2>
12779N/A<
p><
span class="corpauthor">Internet Systems Consortium</
span>
12779N/A<
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12779N/A<
td width="40%" align="left" valign="top">host�</
td>
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td width="40%" align="right" valign="top">�<
span class="application">dnssec-signzone</
span>