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diff --git a/bin/dnssec/dnssec-keyfromlabel.rst b/bin/dnssec/dnssec-keyfromlabel.rst new file mode 100644 index 0000000..57ab9c8 --- /dev/null +++ b/bin/dnssec/dnssec-keyfromlabel.rst @@ -0,0 +1,262 @@ +.. Copyright (C) Internet Systems Consortium, Inc. ("ISC") +.. +.. SPDX-License-Identifier: MPL-2.0 +.. +.. 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 https://mozilla.org/MPL/2.0/. +.. +.. See the COPYRIGHT file distributed with this work for additional +.. information regarding copyright ownership. + +.. highlight: console + +.. _man_dnssec-keyfromlabel: + +dnssec-keyfromlabel - DNSSEC key generation tool +------------------------------------------------ + +Synopsis +~~~~~~~~ + +:program:`dnssec-keyfromlabel` {**-l** label} [**-3**] [**-a** algorithm] [**-A** date/offset] [**-c** class] [**-D** date/offset] [**-D** sync date/offset] [**-E** engine] [**-f** flag] [**-G**] [**-I** date/offset] [**-i** interval] [**-k**] [**-K** directory] [**-L** ttl] [**-n** nametype] [**-P** date/offset] [**-P** sync date/offset] [**-p** protocol] [**-R** date/offset] [**-S** key] [**-t** type] [**-v** level] [**-V**] [**-y**] {name} + +Description +~~~~~~~~~~~ + +``dnssec-keyfromlabel`` generates a pair of key files that reference a +key object stored in a cryptographic hardware service module (HSM). The +private key file can be used for DNSSEC signing of zone data as if it +were a conventional signing key created by ``dnssec-keygen``, but the +key material is stored within the HSM and the actual signing takes +place there. + +The ``name`` of the key is specified on the command line. This must +match the name of the zone for which the key is being generated. + +Options +~~~~~~~ + +``-a algorithm`` + This option selects the cryptographic algorithm. The value of ``algorithm`` must + be one of RSASHA1, NSEC3RSASHA1, RSASHA256, RSASHA512, + ECDSAP256SHA256, ECDSAP384SHA384, ED25519, or ED448. + + These values are case-insensitive. In some cases, abbreviations are + supported, such as ECDSA256 for ECDSAP256SHA256 and ECDSA384 for + ECDSAP384SHA384. If RSASHA1 is specified along with the ``-3`` + option, then NSEC3RSASHA1 is used instead. + + This option is mandatory except when using the + ``-S`` option, which copies the algorithm from the predecessory key. + + .. versionchanged:: 9.12.0 + The default value RSASHA1 for newly generated keys was removed. + +``-3`` + This option uses an NSEC3-capable algorithm to generate a DNSSEC key. If this + option is used with an algorithm that has both NSEC and NSEC3 + versions, then the NSEC3 version is used; for example, + ``dnssec-keygen -3a RSASHA1`` specifies the NSEC3RSASHA1 algorithm. + +``-E engine`` + This option specifies the cryptographic hardware to use. + + When BIND 9 is built with OpenSSL, this needs to be set to the OpenSSL + engine identifier that drives the cryptographic accelerator or + hardware service module (usually ``pkcs11``). 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``. + +``-l label`` + This option specifies the label for a key pair in the crypto hardware. + + When BIND 9 is built with OpenSSL-based PKCS#11 support, the label is + an arbitrary string that identifies a particular key. It may be + preceded by an optional OpenSSL engine name, followed by a colon, as + in ``pkcs11:keylabel``. + + When BIND 9 is built with native PKCS#11 support, the label is a + PKCS#11 URI string in the format + ``pkcs11:keyword\ =value[;\ keyword\ =value;...]``. Keywords + include ``token``, which identifies the HSM; ``object``, which identifies + the key; and ``pin-source``, which identifies a file from which the + HSM's PIN code can be obtained. The label is stored in the + on-disk ``private`` file. + + If the label contains a ``pin-source`` field, tools using the + generated key files are able to use the HSM for signing and other + operations without any need for an operator to manually enter a PIN. + Note: Making the HSM's PIN accessible in this manner may reduce the + security advantage of using an HSM; use caution + with this feature. + +``-n nametype`` + This option specifies the owner type of the key. The value of ``nametype`` 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. + +``-C`` + This option enables compatibility mode, which generates an old-style key, without any metadata. + By default, ``dnssec-keyfromlabel`` includes the key's creation + date in the metadata stored with the private key; other dates may + be set there as well, including publication date, activation date, etc. Keys + that include this data may be incompatible with older versions of + BIND; the ``-C`` option suppresses them. + +``-c class`` + This option indicates that the DNS record containing the key should have the + specified class. If not specified, class IN is used. + +``-f flag`` + This option sets the specified flag in the ``flag`` field of the KEY/DNSKEY record. + The only recognized flags are KSK (Key-Signing Key) and REVOKE. + +``-G`` + This option generates a key, but does not publish it or sign with it. This option is + incompatible with ``-P`` and ``-A``. + +``-h`` + This option prints a short summary of the options and arguments to + ``dnssec-keyfromlabel``. + +``-K directory`` + This option sets the directory in which the key files are to be written. + +``-k`` + This option generates KEY records rather than DNSKEY records. + +``-L`` ttl + This option sets the default TTL to use for this key when it is converted into a + DNSKEY RR. This is the TTL used when the key is imported into a zone, + unless there was already a DNSKEY RRset in + place, in which case the existing TTL would take precedence. Setting + the default TTL to ``0`` or ``none`` removes it. + +``-p protocol`` + This option sets the protocol value for the 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. + +``-S key`` + This option generates a key as an explicit successor to an existing key. The name, + algorithm, size, and type of the key are set to match the + predecessor. The activation date of the new key is set to the + inactivation date of the existing one. The publication date is + set to the activation date minus the prepublication interval, which + defaults to 30 days. + +``-t type`` + This option indicates the type of the key. ``type`` must be one of AUTHCONF, + NOAUTHCONF, NOAUTH, or NOCONF. The default is AUTHCONF. AUTH refers + to the ability to authenticate data, and CONF to the ability to encrypt + data. + +``-v level`` + This option sets the debugging level. + +``-V`` + This option prints version information. + +``-y`` + This option allows DNSSEC key files to be generated even if the key ID would + collide with that of an existing key, in the event of either key + being revoked. (This is only safe to enable if + :rfc:`5011` trust anchor maintenance is not used with either of the keys + involved.) + +Timing Options +~~~~~~~~~~~~~~ + +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 date/offset`` + This option sets the date on which a key is to be published to the zone. After + that date, the key is included in the zone but is not used + to sign it. If not set, and if the ``-G`` option has not been used, the + default is the current date. + +``-P sync date/offset`` + This option sets the date on which CDS and CDNSKEY records that match this key + are to be published to the zone. + +``-A date/offset`` + This option sets the date on which the key is to be activated. After that date, + the key is included in the zone and used to sign it. If not set, + and if the ``-G`` option has not been used, the default is the current date. + +``-R date/offset`` + This option sets the date on which the key is to be revoked. After that date, the + key is flagged as revoked. It is included in the zone and + is used to sign it. + +``-I date/offset`` + This option sets the date on which the key is to be retired. After that date, the + key is still included in the zone, but it is not used to + sign it. + +``-D date/offset`` + This option sets the date on which the key is to be deleted. After that date, the + key is no longer included in the zone. (However, it may remain in the key + repository.) + +``-D sync date/offset`` + This option sets the date on which the CDS and CDNSKEY records that match this + key are to be deleted. + +``-i interval`` + This option 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 is not, the publication date defaults to this much time + before the activation date; conversely, if the publication date is + specified but not the activation date, activation is set to + this much time after publication. + + 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. + + As with date offsets, if the argument is followed by one of the + suffixes ``y``, ``mo``, ``w``, ``d``, ``h``, or ``mi``, the interval is + measured in years, months, weeks, days, hours, or minutes, + respectively. Without a suffix, the interval is measured in seconds. + +Generated Key Files +~~~~~~~~~~~~~~~~~~~ + +When ``dnssec-keyfromlabel`` completes successfully, it prints a string +of the form ``Knnnn.+aaa+iiiii`` to the standard output. This is an +identification string for the key files it has generated. + +- ``nnnn`` is the key name. + +- ``aaa`` is the numeric representation of the algorithm. + +- ``iiiii`` is the key identifier (or footprint). + +``dnssec-keyfromlabel`` creates two files, with names based on the +printed string. ``Knnnn.+aaa+iiiii.key`` contains the public key, and +``Knnnn.+aaa+iiiii.private`` contains the private key. + +The ``.key`` file contains a DNS KEY record that can be inserted into a +zone file (directly or with an $INCLUDE statement). + +The ``.private`` file contains algorithm-specific fields. For obvious +security reasons, this file does not have general read permission. + +See Also +~~~~~~~~ + +:manpage:`dnssec-keygen(8)`, :manpage:`dnssec-signzone(8)`, BIND 9 Administrator Reference Manual, +:rfc:`4034`, :rfc:`7512`. |