09-09-2017
It is possible, but that solution wouldn't lend itself naturally. You'd need to suck in the entire first file - which I presume is larger - into RAM and either store it in two arrays (key and entire record) or have an algorithm search the key later. Then, for every line in file two, you'd need to run through ALL keys to find ALL occurrences of the key for printout. All that can become lengthy for huge files.
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LEARN ABOUT DEBIAN
ldns-keygen
ldns-keygen(1) General Commands Manual ldns-keygen(1)
NAME
ldns-keygen - generate a DNSSEC key pair
SYNOPSIS
ldns-keygen [ OPTION ] DOMAIN
DESCRIPTION
ldns-keygen is used to generate a private/public keypair. When run, it will create 3 files; a .key file with the public DNSKEY, a .private
file with the private keydata and a .ds with the DS record of the DNSKEY record.
It prints out the basename for these files: K<name>+<alg>+<id>
OPTIONS
-a <algorithm>
Create a key with this algorithm. Specifying 'list' here gives a list of supported algorithms. Several alias names are also
accepted (from older versions and other software), the list gives names from the RFC. Also the plain algo number is accepted.
-b <bits>
Use this many bits for the key length.
-k When given, generate a key signing key. This just sets the flag field to 257 instead of 256 in the DNSKEY RR in the .key file.
-r device
Make ldns-keygen use this file to seed the random generator with. This will default to /dev/random.
-v Show the version and exit
AUTHOR
Written by the ldns team as an example for ldns usage.
REPORTING BUGS
Report bugs to <ldns-team@nlnetlabs.nl>.
COPYRIGHT
Copyright (C) 2005-2008 NLnet Labs. This is free software. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
27 May 2008 ldns-keygen(1)