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0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User<a name="man.dnssec-dsfromkey"></a><div class="titlepage"></div>
0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User<p><span class="application">dnssec-dsfromkey</span> — DNSSEC DS RR generation tool</p>
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User<div class="cmdsynopsis"><p><code class="command">dnssec-dsfromkey</code> [<code class="option">-v <em class="replaceable"><code>level</code></em></code>] [<code class="option">-1</code>] [<code class="option">-2</code>] [<code class="option">-a <em class="replaceable"><code>alg</code></em></code>] [<code class="option">-l <em class="replaceable"><code>domain</code></em></code>] {keyfile}</p></div>
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt<div class="cmdsynopsis"><p><code class="command">dnssec-dsfromkey</code> {-s} [<code class="option">-1</code>] [<code class="option">-2</code>] [<code class="option">-a <em class="replaceable"><code>alg</code></em></code>] [<code class="option">-K <em class="replaceable"><code>directory</code></em></code>] [<code class="option">-l <em class="replaceable"><code>domain</code></em></code>] [<code class="option">-s</code>] [<code class="option">-c <em class="replaceable"><code>class</code></em></code>] [<code class="option">-f <em class="replaceable"><code>file</code></em></code>] [<code class="option">-A</code>] [<code class="option">-v <em class="replaceable"><code>level</code></em></code>] {dnsname}</p></div>
fd2597f75693a2279fdf588bd40dfe2407c42028Tinderbox User<p><span><strong class="command">dnssec-dsfromkey</strong></span>
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt outputs the Delegation Signer (DS) resource record (RR), as defined in
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt RFC 3658 and RFC 4509, for the given key(s).
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User Use SHA-1 as the digest algorithm (the default is to use
0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User both SHA-1 and SHA-256).
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User Use SHA-256 as the digest algorithm.
8a48b6b9b6fa8486f24b22d1972b2b6ebb36a4a4Tinderbox User<dt><span class="term">-a <em class="replaceable"><code>algorithm</code></em></span></dt>
8a48b6b9b6fa8486f24b22d1972b2b6ebb36a4a4Tinderbox User Select the digest algorithm. The value of
8a48b6b9b6fa8486f24b22d1972b2b6ebb36a4a4Tinderbox User <code class="option">algorithm</code> must be one of SHA-1 (SHA1) or
8a48b6b9b6fa8486f24b22d1972b2b6ebb36a4a4Tinderbox User SHA-256 (SHA256). These values are case insensitive.
8a48b6b9b6fa8486f24b22d1972b2b6ebb36a4a4Tinderbox User<dt><span class="term">-K <em class="replaceable"><code>directory</code></em></span></dt>
8a48b6b9b6fa8486f24b22d1972b2b6ebb36a4a4Tinderbox User Look for key files (or, in keyset mode,
8a48b6b9b6fa8486f24b22d1972b2b6ebb36a4a4Tinderbox User <code class="filename">keyset-</code> files) in
8a48b6b9b6fa8486f24b22d1972b2b6ebb36a4a4Tinderbox User<dt><span class="term">-f <em class="replaceable"><code>file</code></em></span></dt>
8a48b6b9b6fa8486f24b22d1972b2b6ebb36a4a4Tinderbox User Zone file mode: in place of the keyfile name, the argument is
8a48b6b9b6fa8486f24b22d1972b2b6ebb36a4a4Tinderbox User the DNS domain name of a zone master file, which can be read
8a48b6b9b6fa8486f24b22d1972b2b6ebb36a4a4Tinderbox User from <code class="option">file</code>. If the zone name is the same as
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User <code class="option">file</code>, then it may be omitted.
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt Include ZSK's when generating DS records. Without this option,
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User only keys which have the KSK flag set will be converted to DS
801d3c8888d6026eb1fd31c23e51e4f54dbc317eTinderbox User records and printed. Useful only in zone file mode.
801d3c8888d6026eb1fd31c23e51e4f54dbc317eTinderbox User<dt><span class="term">-l <em class="replaceable"><code>domain</code></em></span></dt>
801d3c8888d6026eb1fd31c23e51e4f54dbc317eTinderbox User Generate a DLV set instead of a DS set. The specified
801d3c8888d6026eb1fd31c23e51e4f54dbc317eTinderbox User <code class="option">domain</code> is appended to the name for each
801d3c8888d6026eb1fd31c23e51e4f54dbc317eTinderbox User record in the set.
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User The DNSSEC Lookaside Validation (DLV) RR is described
0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User Keyset mode: in place of the keyfile name, the argument is
0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User the DNS domain name of a keyset file.
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User<dt><span class="term">-c <em class="replaceable"><code>class</code></em></span></dt>
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User Specifies the DNS class (default is IN). Useful only
0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User in keyset or zone file mode.
0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User<dt><span class="term">-v <em class="replaceable"><code>level</code></em></span></dt>
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User Sets the debugging level.
14a656f94b1fd0ababd84a772228dfa52276ba15Evan Hunt To build the SHA-256 DS RR from the
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User <strong class="userinput"><code>Kexample.com.+003+26160</code></strong>
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User keyfile name, the following command would be issued:
0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User<p><strong class="userinput"><code>dnssec-dsfromkey -2 Kexample.com.+003+26160</code></strong>
0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User The command would print something like:
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User<p><strong class="userinput"><code>example.com. IN DS 26160 5 2 3A1EADA7A74B8D0BA86726B0C227AA85AB8BBD2B2004F41A868A54F0 C5EA0B94</code></strong>
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User The keyfile can be designed by the key identification
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User <code class="filename">Knnnn.+aaa+iiiii</code> or the full file name
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User <code class="filename">Knnnn.+aaa+iiiii.key</code> as generated by
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User <span class="refentrytitle">dnssec-keygen</span>(8).
0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User The keyset file name is built from the <code class="option">directory</code>,
0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User the string <code class="filename">keyset-</code> and the
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User A keyfile error can give a "file not found" even if the file exists.
3cdd0f1bc921f19e790b4f795b90eabc94e9a74aTinderbox User<p><span class="citerefentry"><span class="refentrytitle">dnssec-keygen</span>(8)</span>,
7911e6f9de303bca5a3d8b34f4330c8f7cecffaeTinderbox User <span class="citerefentry"><span class="refentrytitle">dnssec-signzone</span>(8)</span>,
0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User <em class="citetitle">BIND 9 Administrator Reference Manual</em>,
0da02c26a6631c25f075a8e4ac6de9e58f49a0c2Tinderbox User<p><span class="corpauthor">Internet Systems Consortium</span>