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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 18:37:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 18:37:14 +0000 |
| commit | ea648e70a989cca190cd7403fe892fd2dcc290b4 (patch) | |
| tree | e2b6b1c647da68b0d4d66082835e256eb30970e8 /bin/dnssec/dnssec-keygen.html | |
| parent | Initial commit. (diff) | |
| download | bind9-upstream.tar.xz bind9-upstream.zip | |
Adding upstream version 1:9.11.5.P4+dfsg.upstream/1%9.11.5.P4+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'bin/dnssec/dnssec-keygen.html')
| -rw-r--r-- | bin/dnssec/dnssec-keygen.html | 545 |
1 files changed, 545 insertions, 0 deletions
diff --git a/bin/dnssec/dnssec-keygen.html b/bin/dnssec/dnssec-keygen.html new file mode 100644 index 0000000..4cdeca6 --- /dev/null +++ b/bin/dnssec/dnssec-keygen.html @@ -0,0 +1,545 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<!-- + - Copyright (C) 2000-2005, 2007-2012, 2014-2019 Internet Systems Consortium, Inc. ("ISC") + - + - This Source Code Form is subject to the terms of the Mozilla Public + - License, v. 2.0. If a copy of the MPL was not distributed with this + - file, You can obtain one at http://mozilla.org/MPL/2.0/. +--> +<html lang="en"> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>dnssec-keygen</title> +<meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> +</head> +<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry"> +<a name="man.dnssec-keygen"></a><div class="titlepage"></div> + + + + + + <div class="refnamediv"> +<h2>Name</h2> +<p> + <span class="application">dnssec-keygen</span> + — DNSSEC key generation tool + </p> +</div> + + + + <div class="refsynopsisdiv"> +<h2>Synopsis</h2> + <div class="cmdsynopsis"><p> + <code class="command">dnssec-keygen</code> + [<code class="option">-a <em class="replaceable"><code>algorithm</code></em></code>] + [<code class="option">-b <em class="replaceable"><code>keysize</code></em></code>] + [<code class="option">-n <em class="replaceable"><code>nametype</code></em></code>] + [<code class="option">-3</code>] + [<code class="option">-A <em class="replaceable"><code>date/offset</code></em></code>] + [<code class="option">-C</code>] + [<code class="option">-c <em class="replaceable"><code>class</code></em></code>] + [<code class="option">-D <em class="replaceable"><code>date/offset</code></em></code>] + [<code class="option">-D sync <em class="replaceable"><code>date/offset</code></em></code>] + [<code class="option">-E <em class="replaceable"><code>engine</code></em></code>] + [<code class="option">-f <em class="replaceable"><code>flag</code></em></code>] + [<code class="option">-G</code>] + [<code class="option">-g <em class="replaceable"><code>generator</code></em></code>] + [<code class="option">-h</code>] + [<code class="option">-I <em class="replaceable"><code>date/offset</code></em></code>] + [<code class="option">-i <em class="replaceable"><code>interval</code></em></code>] + [<code class="option">-K <em class="replaceable"><code>directory</code></em></code>] + [<code class="option">-k</code>] + [<code class="option">-L <em class="replaceable"><code>ttl</code></em></code>] + [<code class="option">-P <em class="replaceable"><code>date/offset</code></em></code>] + [<code class="option">-P sync <em class="replaceable"><code>date/offset</code></em></code>] + [<code class="option">-p <em class="replaceable"><code>protocol</code></em></code>] + [<code class="option">-q</code>] + [<code class="option">-R <em class="replaceable"><code>date/offset</code></em></code>] + [<code class="option">-r <em class="replaceable"><code>randomdev</code></em></code>] + [<code class="option">-S <em class="replaceable"><code>key</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</code>] + [<code class="option">-v <em class="replaceable"><code>level</code></em></code>] + [<code class="option">-z</code>] + {name} + </p></div> + </div> + + <div class="refsection"> +<a name="id-1.7"></a><h2>DESCRIPTION</h2> + + <p><span class="command"><strong>dnssec-keygen</strong></span> + generates keys for DNSSEC (Secure DNS), as defined in RFC 2535 + and RFC 4034. It can also generate keys for use with + TSIG (Transaction Signatures) as defined in RFC 2845, or TKEY + (Transaction Key) as defined in RFC 2930. + </p> + <p> + The <code class="option">name</code> of the key is specified on the command + line. For DNSSEC keys, this must match the name of the zone for + which the key is being generated. + </p> + </div> + + <div class="refsection"> +<a name="id-1.8"></a><h2>OPTIONS</h2> + + + <div class="variablelist"><dl class="variablelist"> +<dt><span class="term">-a <em class="replaceable"><code>algorithm</code></em></span></dt> +<dd> + <p> + Selects the cryptographic algorithm. For DNSSEC keys, the value + of <code class="option">algorithm</code> must be one of RSAMD5, RSASHA1, + DSA, NSEC3RSASHA1, NSEC3DSA, RSASHA256, RSASHA512, ECCGOST, + ECDSAP256SHA256, ECDSAP384SHA384, ED25519 or ED448. + For TSIG/TKEY, the value must + be DH (Diffie Hellman), HMAC-MD5, HMAC-SHA1, HMAC-SHA224, + HMAC-SHA256, HMAC-SHA384, or HMAC-SHA512. These values are + case insensitive. + </p> + <p> + If no algorithm is specified, then RSASHA1 will be used by + default, unless the <code class="option">-3</code> option is specified, + in which case NSEC3RSASHA1 will be used instead. (If + <code class="option">-3</code> is used and an algorithm is specified, + that algorithm will be checked for compatibility with NSEC3.) + </p> + <p> + Note 1: that for DNSSEC, RSASHA1 is a mandatory to implement + algorithm, and DSA is recommended. For TSIG, HMAC-MD5 is + mandatory. + </p> + <p> + Note 2: DH, HMAC-MD5, and HMAC-SHA1 through HMAC-SHA512 + automatically set the -T KEY option. + </p> + </dd> +<dt><span class="term">-b <em class="replaceable"><code>keysize</code></em></span></dt> +<dd> + <p> + Specifies the number of bits in the key. The choice of key + size depends on the algorithm used. RSA keys must be + between 512 and 2048 bits. Diffie Hellman keys must be between + 128 and 4096 bits. DSA keys must be between 512 and 1024 + bits and an exact multiple of 64. HMAC keys must be + between 1 and 512 bits. Elliptic curve algorithms don't need + this parameter. + </p> + <p> + The key size does not need to be specified if using a default + algorithm. The default key size is 1024 bits for zone signing + keys (ZSKs) and 2048 bits for key signing keys (KSKs, + generated with <code class="option">-f KSK</code>). However, if an + algorithm is explicitly specified with the <code class="option">-a</code>, + then there is no default key size, and the <code class="option">-b</code> + must be used. + </p> + </dd> +<dt><span class="term">-n <em class="replaceable"><code>nametype</code></em></span></dt> +<dd> + <p> + Specifies the owner type of the key. The value of + <code class="option">nametype</code> must either be ZONE (for a DNSSEC + zone key (KEY/DNSKEY)), HOST or ENTITY (for a key associated with + a host (KEY)), + USER (for a key associated with a user(KEY)) or OTHER (DNSKEY). + These values are case insensitive. Defaults to ZONE for DNSKEY + generation. + </p> + </dd> +<dt><span class="term">-3</span></dt> +<dd> + <p> + Use an NSEC3-capable algorithm to generate a DNSSEC key. + If this option is used and no algorithm is explicitly + set on the command line, NSEC3RSASHA1 will be used by + default. Note that RSASHA256, RSASHA512, ECCGOST, + ECDSAP256SHA256, ECDSAP384SHA384, ED25519 and ED448 + algorithms are NSEC3-capable. + </p> + </dd> +<dt><span class="term">-C</span></dt> +<dd> + <p> + Compatibility mode: generates an old-style key, without + any metadata. By default, <span class="command"><strong>dnssec-keygen</strong></span> + will include the key's creation date in the metadata stored + with the private key, and other dates may be set there as well + (publication date, activation date, etc). Keys that include + this data may be incompatible with older versions of BIND; the + <code class="option">-C</code> option suppresses them. + </p> + </dd> +<dt><span class="term">-c <em class="replaceable"><code>class</code></em></span></dt> +<dd> + <p> + Indicates that the DNS record containing the key should have + the specified class. If not specified, class IN is used. + </p> + </dd> +<dt><span class="term">-E <em class="replaceable"><code>engine</code></em></span></dt> +<dd> + <p> + Specifies the cryptographic hardware to use, when applicable. + </p> + <p> + When BIND is built with OpenSSL PKCS#11 support, this defaults + to the string "pkcs11", which identifies an OpenSSL engine + that can drive a cryptographic accelerator or hardware service + module. When BIND is built with native PKCS#11 cryptography + (--enable-native-pkcs11), it defaults to the path of the PKCS#11 + provider library specified via "--with-pkcs11". + </p> + </dd> +<dt><span class="term">-f <em class="replaceable"><code>flag</code></em></span></dt> +<dd> + <p> + Set the specified flag in the flag field of the KEY/DNSKEY record. + The only recognized flags are KSK (Key Signing Key) and REVOKE. + </p> + </dd> +<dt><span class="term">-G</span></dt> +<dd> + <p> + Generate a key, but do not publish it or sign with it. This + option is incompatible with -P and -A. + </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-1.9"></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">-P sync <em class="replaceable"><code>date/offset</code></em></span></dt> +<dd> + <p> + Sets the date on which CDS and CDNSKEY records that match this + key are to be published to the zone. + </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">-D sync <em class="replaceable"><code>date/offset</code></em></span></dt> +<dd> + <p> + Sets the date on which the CDS and CDNSKEY records that match this + key are to be deleted. + </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-1.10"></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 cryptography algorithms such as + HMAC-MD5, even though the public and private key are equivalent. + </p> + </div> + + <div class="refsection"> +<a name="id-1.11"></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-1.12"></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></body> +</html> |