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20 <title>dnssec-dsfromkey</title>
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23 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en">
24 <a name="man.dnssec-dsfromkey"></a><div class="titlepage"></div>
25 <div class="refnamediv">
27 <p><span class="application">dnssec-dsfromkey</span> — DNSSEC DS RR generation tool</p>
29 <div class="refsynopsisdiv">
31 <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>
32 <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>
34 <div class="refsect1" lang="en">
35 <a name="id2543427"></a><h2>DESCRIPTION</h2>
36 <p><span><strong class="command">dnssec-dsfromkey</strong></span>
37 outputs the Delegation Signer (DS) resource record (RR), as defined in
38 RFC 3658 and RFC 4509, for the given key(s).
41 <div class="refsect1" lang="en">
42 <a name="id2543438"></a><h2>OPTIONS</h2>
43 <div class="variablelist"><dl>
44 <dt><span class="term">-1</span></dt>
46 Use SHA-1 as the digest algorithm (the default is to use
47 both SHA-1 and SHA-256).
49 <dt><span class="term">-2</span></dt>
51 Use SHA-256 as the digest algorithm.
53 <dt><span class="term">-a <em class="replaceable"><code>algorithm</code></em></span></dt>
55 Select the digest algorithm. The value of
56 <code class="option">algorithm</code> must be one of SHA-1 (SHA1) or
57 SHA-256 (SHA256). These values are case insensitive.
59 <dt><span class="term">-v <em class="replaceable"><code>level</code></em></span></dt>
61 Sets the debugging level.
63 <dt><span class="term">-s</span></dt>
65 Keyset mode: in place of the keyfile name, the argument is
66 the DNS domain name of a keyset file. Following options make sense
69 <dt><span class="term">-c <em class="replaceable"><code>class</code></em></span></dt>
71 Specifies the DNS class (default is IN), useful only
74 <dt><span class="term">-d <em class="replaceable"><code>directory</code></em></span></dt>
76 Look for <code class="filename">keyset</code> files in
77 <code class="option">directory</code> as the directory, ignored when
78 not in the keyset mode.
82 <div class="refsect1" lang="en">
83 <a name="id2543566"></a><h2>EXAMPLE</h2>
85 To build the SHA-256 DS RR from the
86 <strong class="userinput"><code>Kexample.com.+003+26160</code></strong>
87 keyfile name, the following command would be issued:
89 <p><strong class="userinput"><code>dnssec-dsfromkey -2 Kexample.com.+003+26160</code></strong>
92 The command would print something like:
94 <p><strong class="userinput"><code>example.com. IN DS 26160 5 2 3A1EADA7A74B8D0BA86726B0C227AA85AB8BBD2B2004F41A868A54F0 C5EA0B94</code></strong>
97 <div class="refsect1" lang="en">
98 <a name="id2543596"></a><h2>FILES</h2>
100 The keyfile can be designed by the key identification
101 <code class="filename">Knnnn.+aaa+iiiii</code> or the full file name
102 <code class="filename">Knnnn.+aaa+iiiii.key</code> as generated by
103 <span class="refentrytitle">dnssec-keygen</span>(8).
106 The keyset file name is built from the <code class="option">directory</code>,
107 the string <code class="filename">keyset-</code> and the
108 <code class="option">dnsname</code>.
111 <div class="refsect1" lang="en">
112 <a name="id2543632"></a><h2>CAVEAT</h2>
114 A keyfile error can give a "file not found" even if the file exists.
117 <div class="refsect1" lang="en">
118 <a name="id2543641"></a><h2>SEE ALSO</h2>
119 <p><span class="citerefentry"><span class="refentrytitle">dnssec-keygen</span>(8)</span>,
120 <span class="citerefentry"><span class="refentrytitle">dnssec-signzone</span>(8)</span>,
121 <em class="citetitle">BIND 9 Administrator Reference Manual</em>,
122 <em class="citetitle">RFC 3658</em>,
123 <em class="citetitle">RFC 4509</em>.
126 <div class="refsect1" lang="en">
127 <a name="id2543677"></a><h2>AUTHOR</h2>
128 <p><span class="corpauthor">Internet Systems Consortium</span>