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c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<div class="refentry">
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<a name="man.dnssec-keygen"></a><div class="titlepage"></div>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk
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c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <div class="refnamediv">
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<h2>Name</h2>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <span class="application">dnssec-keygen</span>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk &#8212; DNSSEC key generation tool
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk</div>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <div class="refsynopsisdiv">
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<h2>Synopsis</h2>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <div class="cmdsynopsis"><p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <code class="command">dnssec-keygen</code>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-a <em class="replaceable"><code>algorithm</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-b <em class="replaceable"><code>keysize</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-n <em class="replaceable"><code>nametype</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-3</code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-A <em class="replaceable"><code>date/offset</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-C</code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-c <em class="replaceable"><code>class</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-D <em class="replaceable"><code>date/offset</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-E <em class="replaceable"><code>engine</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-f <em class="replaceable"><code>flag</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-G</code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-g <em class="replaceable"><code>generator</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-h</code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-I <em class="replaceable"><code>date/offset</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-i <em class="replaceable"><code>interval</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-K <em class="replaceable"><code>directory</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-L <em class="replaceable"><code>ttl</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-k</code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-P <em class="replaceable"><code>date/offset</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-p <em class="replaceable"><code>protocol</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-q</code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-R <em class="replaceable"><code>date/offset</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-r <em class="replaceable"><code>randomdev</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-S <em class="replaceable"><code>key</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-s <em class="replaceable"><code>strength</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-t <em class="replaceable"><code>type</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-v <em class="replaceable"><code>level</code></em></code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-V</code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk [<code class="option">-z</code>]
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk {name}
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p></div>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </div>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <div class="refsection">
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<a name="id-1.14.10.7"></a><h2>DESCRIPTION</h2>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p><span class="command"><strong>dnssec-keygen</strong></span>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk generates keys for DNSSEC (Secure DNS), as defined in RFC 2535
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk and RFC 4034. It can also generate keys for use with
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk TSIG (Transaction Signatures) as defined in RFC 2845, or TKEY
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk (Transaction Key) as defined in RFC 2930.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk The <code class="option">name</code> of the key is specified on the command
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk line. For DNSSEC keys, this must match the name of the zone for
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk which the key is being generated.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </div>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <div class="refsection">
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<a name="id-1.14.10.8"></a><h2>OPTIONS</h2>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <div class="variablelist"><dl class="variablelist">
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dt><span class="term">-a <em class="replaceable"><code>algorithm</code></em></span></dt>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk Selects the cryptographic algorithm. For DNSSEC keys, the value
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk of <code class="option">algorithm</code> must be one of RSAMD5, RSASHA1,
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk DSA, NSEC3RSASHA1, NSEC3DSA, RSASHA256, RSASHA512, ECCGOST,
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk ECDSAP256SHA256 or ECDSAP384SHA384.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk For TSIG/TKEY, the value must
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk be DH (Diffie Hellman), HMAC-MD5, HMAC-SHA1, HMAC-SHA224,
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk HMAC-SHA256, HMAC-SHA384, or HMAC-SHA512. These values are
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk case insensitive.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk If no algorithm is specified, then RSASHA1 will be used by
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk default, unless the <code class="option">-3</code> option is specified,
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk in which case NSEC3RSASHA1 will be used instead. (If
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <code class="option">-3</code> is used and an algorithm is specified,
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk that algorithm will be checked for compatibility with NSEC3.)
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk Note 1: that for DNSSEC, RSASHA1 is a mandatory to implement
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk algorithm, and DSA is recommended. For TSIG, HMAC-MD5 is
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk mandatory.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk Note 2: DH, HMAC-MD5, and HMAC-SHA1 through HMAC-SHA512
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk automatically set the -T KEY option.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dt><span class="term">-b <em class="replaceable"><code>keysize</code></em></span></dt>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk Specifies the number of bits in the key. The choice of key
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk size depends on the algorithm used. RSA keys must be
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk between 512 and 2048 bits. Diffie Hellman keys must be between
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk 128 and 4096 bits. DSA keys must be between 512 and 1024
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk bits and an exact multiple of 64. HMAC keys must be
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk between 1 and 512 bits. Elliptic curve algorithms don't need
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk this parameter.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk The key size does not need to be specified if using a default
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk algorithm. The default key size is 1024 bits for zone signing
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk keys (ZSKs) and 2048 bits for key signing keys (KSKs,
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk generated with <code class="option">-f KSK</code>). However, if an
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk algorithm is explicitly specified with the <code class="option">-a</code>,
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk then there is no default key size, and the <code class="option">-b</code>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk must be used.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dt><span class="term">-n <em class="replaceable"><code>nametype</code></em></span></dt>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk Specifies the owner type of the key. The value of
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <code class="option">nametype</code> must either be ZONE (for a DNSSEC
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk zone key (KEY/DNSKEY)), HOST or ENTITY (for a key associated with
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk a host (KEY)),
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk USER (for a key associated with a user(KEY)) or OTHER (DNSKEY).
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk These values are case insensitive. Defaults to ZONE for DNSKEY
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk generation.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dt><span class="term">-3</span></dt>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk Use an NSEC3-capable algorithm to generate a DNSSEC key.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk If this option is used and no algorithm is explicitly
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk set on the command line, NSEC3RSASHA1 will be used by
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk default. Note that RSASHA256, RSASHA512, ECCGOST,
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk ECDSAP256SHA256 and ECDSAP384SHA384 algorithms
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk are NSEC3-capable.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dt><span class="term">-C</span></dt>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk Compatibility mode: generates an old-style key, without
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk any metadata. By default, <span class="command"><strong>dnssec-keygen</strong></span>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk will include the key's creation date in the metadata stored
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk with the private key, and other dates may be set there as well
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk (publication date, activation date, etc). Keys that include
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk this data may be incompatible with older versions of BIND; the
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <code class="option">-C</code> option suppresses them.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dt><span class="term">-c <em class="replaceable"><code>class</code></em></span></dt>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk Indicates that the DNS record containing the key should have
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk the specified class. If not specified, class IN is used.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dt><span class="term">-E <em class="replaceable"><code>engine</code></em></span></dt>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk Specifies the cryptographic hardware to use, when applicable.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk When BIND is built with OpenSSL PKCS#11 support, this defaults
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk to the string "pkcs11", which identifies an OpenSSL engine
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk that can drive a cryptographic accelerator or hardware service
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk module. When BIND is built with native PKCS#11 cryptography
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk (--enable-native-pkcs11), it defaults to the path of the PKCS#11
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk provider library specified via "--with-pkcs11".
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dt><span class="term">-f <em class="replaceable"><code>flag</code></em></span></dt>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk Set the specified flag in the flag field of the KEY/DNSKEY record.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk The only recognized flags are KSK (Key Signing Key) and REVOKE.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dt><span class="term">-G</span></dt>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk<dd>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk <p>
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk Generate a key, but do not publish it or sign with it. This
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk option is incompatible with -P and -A.
c1350cf5bc50458ba79cc93ff9e0e5fe3f1aeeb0jeff.schenk </p>
</dd>
<dt><span class="term">-g <em class="replaceable"><code>generator</code></em></span></dt>
<dd>
<p>
If generating a Diffie Hellman key, use this generator.
Allowed values are 2 and 5. If no generator
is specified, a known prime from RFC 2539 will be used
if possible; otherwise the default is 2.
</p>
</dd>
<dt><span class="term">-h</span></dt>
<dd>
<p>
Prints a short summary of the options and arguments to
<span class="command"><strong>dnssec-keygen</strong></span>.
</p>
</dd>
<dt><span class="term">-K <em class="replaceable"><code>directory</code></em></span></dt>
<dd>
<p>
Sets the directory in which the key files are to be written.
</p>
</dd>
<dt><span class="term">-k</span></dt>
<dd>
<p>
Deprecated in favor of -T KEY.
</p>
</dd>
<dt><span class="term">-L <em class="replaceable"><code>ttl</code></em></span></dt>
<dd>
<p>
Sets the default TTL to use for this key when it is converted
into a DNSKEY RR. If the key is imported into a zone,
this is the TTL that will be used for it, unless there was
already a DNSKEY RRset in place, in which case the existing TTL
would take precedence. If this value is not set and there
is no existing DNSKEY RRset, the TTL will default to the
SOA TTL. Setting the default TTL to <code class="literal">0</code>
or <code class="literal">none</code> is the same as leaving it unset.
</p>
</dd>
<dt><span class="term">-p <em class="replaceable"><code>protocol</code></em></span></dt>
<dd>
<p>
Sets the protocol value for the generated key. The protocol
is a number between 0 and 255. The default is 3 (DNSSEC).
Other possible values for this argument are listed in
RFC 2535 and its successors.
</p>
</dd>
<dt><span class="term">-q</span></dt>
<dd>
<p>
Quiet mode: Suppresses unnecessary output, including
progress indication. Without this option, when
<span class="command"><strong>dnssec-keygen</strong></span> is run interactively
to generate an RSA or DSA key pair, it will print a string
of symbols to <code class="filename">stderr</code> indicating the
progress of the key generation. A '.' indicates that a
random number has been found which passed an initial
sieve test; '+' means a number has passed a single
round of the Miller-Rabin primality test; a space
means that the number has passed all the tests and is
a satisfactory key.
</p>
</dd>
<dt><span class="term">-r <em class="replaceable"><code>randomdev</code></em></span></dt>
<dd>
<p>
Specifies the source of randomness. If the operating
system does not provide a <code class="filename">/dev/random</code>
or equivalent device, the default source of randomness
is keyboard input. <code class="filename">randomdev</code>
specifies
the name of a character device or file containing random
data to be used instead of the default. The special value
<code class="filename">keyboard</code> indicates that keyboard
input should be used.
</p>
</dd>
<dt><span class="term">-S <em class="replaceable"><code>key</code></em></span></dt>
<dd>
<p>
Create a new key which is an explicit successor to an
existing key. The name, algorithm, size, and type of the
key will be set to match the existing key. The activation
date of the new key will be set to the inactivation date of
the existing one. The publication date will be set to the
activation date minus the prepublication interval, which
defaults to 30 days.
</p>
</dd>
<dt><span class="term">-s <em class="replaceable"><code>strength</code></em></span></dt>
<dd>
<p>
Specifies the strength value of the key. The strength is
a number between 0 and 15, and currently has no defined
purpose in DNSSEC.
</p>
</dd>
<dt><span class="term">-T <em class="replaceable"><code>rrtype</code></em></span></dt>
<dd>
<p>
Specifies the resource record type to use for the key.
<code class="option">rrtype</code> must be either DNSKEY or KEY. The
default is DNSKEY when using a DNSSEC algorithm, but it can be
overridden to KEY for use with SIG(0).
</p>
<p>
</p>
<p>
Using any TSIG algorithm (HMAC-* or DH) forces this option
to KEY.
</p>
</dd>
<dt><span class="term">-t <em class="replaceable"><code>type</code></em></span></dt>
<dd>
<p>
Indicates the use of the key. <code class="option">type</code> must be
one of AUTHCONF, NOAUTHCONF, NOAUTH, or NOCONF. The default
is AUTHCONF. AUTH refers to the ability to authenticate
data, and CONF the ability to encrypt data.
</p>
</dd>
<dt><span class="term">-v <em class="replaceable"><code>level</code></em></span></dt>
<dd>
<p>
Sets the debugging level.
</p>
</dd>
<dt><span class="term">-V</span></dt>
<dd>
<p>
Prints version information.
</p>
</dd>
</dl></div>
</div>
<div class="refsection">
<a name="id-1.14.10.9"></a><h2>TIMING OPTIONS</h2>
<p>
Dates can be expressed in the format YYYYMMDD or YYYYMMDDHHMMSS.
If the argument begins with a '+' or '-', it is interpreted as
an offset from the present time. For convenience, if such an offset
is followed by one of the suffixes 'y', 'mo', 'w', 'd', 'h', or 'mi',
then the offset is computed in years (defined as 365 24-hour days,
ignoring leap years), months (defined as 30 24-hour days), weeks,
days, hours, or minutes, respectively. Without a suffix, the offset
is computed in seconds. To explicitly prevent a date from being
set, use 'none' or 'never'.
</p>
<div class="variablelist"><dl class="variablelist">
<dt><span class="term">-P <em class="replaceable"><code>date/offset</code></em></span></dt>
<dd>
<p>
Sets the date on which a key is to be published to the zone.
After that date, the key will be included in the zone but will
not be used to sign it. If not set, and if the -G option has
not been used, the default is "now".
</p>
</dd>
<dt><span class="term">-A <em class="replaceable"><code>date/offset</code></em></span></dt>
<dd>
<p>
Sets the date on which the key is to be activated. After that
date, the key will be included in the zone and used to sign
it. If not set, and if the -G option has not been used, the
default is "now". If set, if and -P is not set, then
the publication date will be set to the activation date
minus the prepublication interval.
</p>
</dd>
<dt><span class="term">-R <em class="replaceable"><code>date/offset</code></em></span></dt>
<dd>
<p>
Sets the date on which the key is to be revoked. After that
date, the key will be flagged as revoked. It will be included
in the zone and will be used to sign it.
</p>
</dd>
<dt><span class="term">-I <em class="replaceable"><code>date/offset</code></em></span></dt>
<dd>
<p>
Sets the date on which the key is to be retired. After that
date, the key will still be included in the zone, but it
will not be used to sign it.
</p>
</dd>
<dt><span class="term">-D <em class="replaceable"><code>date/offset</code></em></span></dt>
<dd>
<p>
Sets the date on which the key is to be deleted. After that
date, the key will no longer be included in the zone. (It
may remain in the key repository, however.)
</p>
</dd>
<dt><span class="term">-i <em class="replaceable"><code>interval</code></em></span></dt>
<dd>
<p>
Sets the prepublication interval for a key. If set, then
the publication and activation dates must be separated by at least
this much time. If the activation date is specified but the
publication date isn't, then the publication date will default
to this much time before the activation date; conversely, if
the publication date is specified but activation date isn't,
then activation will be set to this much time after publication.
</p>
<p>
If the key is being created as an explicit successor to another
key, then the default prepublication interval is 30 days;
otherwise it is zero.
</p>
<p>
As with date offsets, if the argument is followed by one of
the suffixes 'y', 'mo', 'w', 'd', 'h', or 'mi', then the
interval is measured in years, months, weeks, days, hours,
or minutes, respectively. Without a suffix, the interval is
measured in seconds.
</p>
</dd>
</dl></div>
</div>
<div class="refsection">
<a name="id-1.14.10.10"></a><h2>GENERATED KEYS</h2>
<p>
When <span class="command"><strong>dnssec-keygen</strong></span> completes
successfully,
it prints a string of the form <code class="filename">Knnnn.+aaa+iiiii</code>
to the standard output. This is an identification string for
the key it has generated.
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
<p><code class="filename">nnnn</code> is the key name.
</p>
</li>
<li class="listitem">
<p><code class="filename">aaa</code> is the numeric representation
of the
algorithm.
</p>
</li>
<li class="listitem">
<p><code class="filename">iiiii</code> is the key identifier (or
footprint).
</p>
</li>
</ul></div>
<p><span class="command"><strong>dnssec-keygen</strong></span>
creates two files, with names based
on the printed string. <code class="filename">Knnnn.+aaa+iiiii.key</code>
contains the public key, and
<code class="filename">Knnnn.+aaa+iiiii.private</code> contains the
private
key.
</p>
<p>
The <code class="filename">.key</code> file contains a DNS KEY record
that
can be inserted into a zone file (directly or with a $INCLUDE
statement).
</p>
<p>
The <code class="filename">.private</code> file contains
algorithm-specific
fields. For obvious security reasons, this file does not have
general read permission.
</p>
<p>
Both <code class="filename">.key</code> and <code class="filename">.private</code>
files are generated for symmetric encryption algorithms such as
HMAC-MD5, even though the public and private key are equivalent.
</p>
</div>
<div class="refsection">
<a name="id-1.14.10.11"></a><h2>EXAMPLE</h2>
<p>
To generate a 768-bit DSA key for the domain
<strong class="userinput"><code>example.com</code></strong>, the following command would be
issued:
</p>
<p><strong class="userinput"><code>dnssec-keygen -a DSA -b 768 -n ZONE example.com</code></strong>
</p>
<p>
The command would print a string of the form:
</p>
<p><strong class="userinput"><code>Kexample.com.+003+26160</code></strong>
</p>
<p>
In this example, <span class="command"><strong>dnssec-keygen</strong></span> creates
the files <code class="filename">Kexample.com.+003+26160.key</code>
and
<code class="filename">Kexample.com.+003+26160.private</code>.
</p>
</div>
<div class="refsection">
<a name="id-1.14.10.12"></a><h2>SEE ALSO</h2>
<p><span class="citerefentry">
<span class="refentrytitle">dnssec-signzone</span>(8)
</span>,
<em class="citetitle">BIND 9 Administrator Reference Manual</em>,
<em class="citetitle">RFC 2539</em>,
<em class="citetitle">RFC 2845</em>,
<em class="citetitle">RFC 4034</em>.
</p>
</div>
</div>
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