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$Id: dnssec-dsfromkey.8,v 1.2 2008/11/07 02:28:49 marka Exp $
Title: dnssec-dsfromkey
Author:
Generator: DocBook XSL Stylesheets v1.73.2 <http://docbook.sf.net/>
Date: november 29, 2008
Manual: BIND9
Source: BIND9
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17 dnssec-dsfromkey [-v level] [-1] [-2] [-a alg] {keyfile}
17 dnssec-dsfromkey {-s} [-v level] [-1] [-2] [-a alg] [-c class] [-d dir] {dnsname}
dnssec-dsfromkey outputs the DS RR for the given key(s) as defined in RFC 3658 and RFC 4509\.
-1
Use SHA-1 as the digest algorithm (the default is to use both SHA-1 and SHA-256)\.
-2
Use SHA-256 as the digest algorithm\.
-a algorithm
Select the digest algorithm\. The value of algorithm must be one of SHA-1 (SHA1) or SHA-256 (SHA256)\. These values are case insensitive\.
-v level
Sets the debugging level\.
-s
Keyset mode: in place of the keyfile name, the argument is the DNS domain name of a keyset file\. Following options make sense only in this mode\.
-c class
Specifies the DNS class (default is IN), useful only in the keyset mode\.
-d directory
Look for keyset files in directory as the directory, ignored when not in the keyset mode\.
To build the SHA-256 DS RR from the Kexample\.com\.+003+26160 keyfile name, the following command would be issued:
dnssec-dsfromkey -2 Kexample\.com\.+003+26160
The command would print something like:
example\.com\. IN DS 26160 5 2 3A1EADA7A74B8D0BA86726B0C227AA85AB8BBD2B2004F41A868A54F0 C5EA0B94
The keyfile can be designed by the key identification Knnnn\.+aaa+iiiii or the full file name Knnnn\.+aaa+iiiii\.key\.
The keyset file name is built from the directory, the string keyset- and the dnsname with a trailing dot\.
A keyfile error can give a "file not found" even the file exists\.
dnssec-keygen(8), dnssec-signzone(8), BIND 9 Administrator Reference Manual, RFC 3658, RFC 4509\.
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