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5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<p><span class="application">dnssec-dsfromkey</span> — DNSSEC DS RR generation tool</p>
6f1205897504b8f50b1785975482c995888dd630Tinderbox 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>] {keyfile}</p></div>
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<div class="cmdsynopsis"><p><code class="command">dnssec-dsfromkey</code> {-s} [<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">-c <em class="replaceable"><code>class</code></em></code>] [<code class="option">-d <em class="replaceable"><code>dir</code></em></code>] {dnsname}</p></div>
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<p><span><strong class="command">dnssec-dsfromkey</strong></span>
d71e2e0c61df16ff37c9934c371a4a60c08974f7Mark Andrews outputs the Delegation Signer (DS) resource record (RR), as defined in
0a7ed88633a680bb881868b75ded4d09a7bbbc50Automatic Updater RFC 3658 and RFC 4509, for the given key(s).
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews Use SHA-1 as the digest algorithm (the default is to use
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews both SHA-1 and SHA-256).
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews Use SHA-256 as the digest algorithm.
0a7ed88633a680bb881868b75ded4d09a7bbbc50Automatic Updater<dt><span class="term">-a <em class="replaceable"><code>algorithm</code></em></span></dt>
cd791043c8a6edbcacc2392575a9816d19b8157cTinderbox User Select the digest algorithm. The value of
cd791043c8a6edbcacc2392575a9816d19b8157cTinderbox User <code class="option">algorithm</code> must be one of SHA-1 (SHA1) or
8e821eea5f57ac47a94305aa7ab0c3570d92a311Automatic Updater SHA-256 (SHA256). These values are case insensitive.
0a7ed88633a680bb881868b75ded4d09a7bbbc50Automatic Updater<dt><span class="term">-v <em class="replaceable"><code>level</code></em></span></dt>
0a7ed88633a680bb881868b75ded4d09a7bbbc50Automatic Updater Sets the debugging level.
8e821eea5f57ac47a94305aa7ab0c3570d92a311Automatic Updater Keyset mode: in place of the keyfile name, the argument is
8e821eea5f57ac47a94305aa7ab0c3570d92a311Automatic Updater the DNS domain name of a keyset file. Following options make sense
8e821eea5f57ac47a94305aa7ab0c3570d92a311Automatic Updater only in this mode.
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<dt><span class="term">-c <em class="replaceable"><code>class</code></em></span></dt>
731cc132f22dbc9e0ecd7035dce314a61076d31bAutomatic Updater Specifies the DNS class (default is IN), useful only
731cc132f22dbc9e0ecd7035dce314a61076d31bAutomatic Updater in the keyset mode.
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews<dt><span class="term">-d <em class="replaceable"><code>directory</code></em></span></dt>
0a7ed88633a680bb881868b75ded4d09a7bbbc50Automatic Updater Look for <code class="filename">keyset</code> files in
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews <code class="option">directory</code> as the directory, ignored when
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews not in the keyset mode.
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews To build the SHA-256 DS RR from the
8e821eea5f57ac47a94305aa7ab0c3570d92a311Automatic Updater <strong class="userinput"><code>Kexample.com.+003+26160</code></strong>
cd791043c8a6edbcacc2392575a9816d19b8157cTinderbox User keyfile name, the following command would be issued:
ca67ebfe9eef0b8f04179f7e511a19e0337a5422Automatic Updater<p><strong class="userinput"><code>dnssec-dsfromkey -2 Kexample.com.+003+26160</code></strong>
0a7ed88633a680bb881868b75ded4d09a7bbbc50Automatic Updater The command would print something like:
0a7ed88633a680bb881868b75ded4d09a7bbbc50Automatic Updater<p><strong class="userinput"><code>example.com. IN DS 26160 5 2 3A1EADA7A74B8D0BA86726B0C227AA85AB8BBD2B2004F41A868A54F0 C5EA0B94</code></strong>
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews The keyfile can be designed by the key identification
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews <code class="filename">Knnnn.+aaa+iiiii</code> or the full file name
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews <code class="filename">Knnnn.+aaa+iiiii.key</code> as generated by
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews <span class="refentrytitle">dnssec-keygen</span>(8).
5a4557e8de2951a2796676b5ec4b6a90caa5be14Mark Andrews The keyset file name is built from the <code class="option">directory</code>,
2f8d63983c297c62630044d28a6f66676b4d339dMark Andrews the string <code class="filename">keyset-</code> and the
0a7ed88633a680bb881868b75ded4d09a7bbbc50Automatic Updater A keyfile error can give a "file not found" even if the file exists.
0a7ed88633a680bb881868b75ded4d09a7bbbc50Automatic Updater<p><span class="citerefentry"><span class="refentrytitle">dnssec-keygen</span>(8)</span>,
0a7ed88633a680bb881868b75ded4d09a7bbbc50Automatic Updater <span class="citerefentry"><span class="refentrytitle">dnssec-signzone</span>(8)</span>,
0a7ed88633a680bb881868b75ded4d09a7bbbc50Automatic Updater <em class="citetitle">BIND 9 Administrator Reference Manual</em>,
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