mirror of
https://github.com/Yubico/yubikey-ksm.git
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118 lines
3.6 KiB
Perl
Executable File
118 lines
3.6 KiB
Perl
Executable File
#!/usr/bin/perl
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# Written by Simon Josefsson <simon@josefsson.org>.
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# Copyright (c) 2009 Yubico AB
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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use strict;
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use POSIX qw(strftime);
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sub usage {
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print "Usage: ykksm-gen-keys.pl [--verbose] [--help]\n";
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print " [--urandom] [--progflags PROGFLAGS] START [END]\n";
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print "\n";
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print " Tool to generate keys on the YKKSM-KEYPROV format.\n";
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print "\n";
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print " START: Decimal start point.\n";
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print "\n";
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print " END: Decimal end point, if absent START is used as END.\n";
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print "\n";
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print " --urandom: Use /dev/urandom instead of /dev/random as entropy source.\n";
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print "\n";
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print " --progflags PROGFLAGS: Add a final personalization configuration string.\n";
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print "\n";
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print "Usage example:\n";
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print "\n";
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print " ./ykksm-gen-keys.pl --urandom 1 10 |\n";
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print " gpg -a --sign --encrypt -r 1D2F473E > keys.txt\n";
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print "\n";
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exit 1;
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}
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if ($#ARGV==-1) {
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usage();
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}
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my $verbose = 0;
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my $device = "/dev/random";
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my $progflags;
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while ($ARGV[0] =~ m/^-(.*)/) {
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my $cmd = shift @ARGV;
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if (($cmd eq "-v") || ($cmd eq "--verbose")) {
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$verbose = 1;
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} elsif (($cmd eq "-h") || ($cmd eq "--help")) {
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usage();
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} elsif ($cmd eq "--urandom") {
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$device = "/dev/urandom";
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} elsif ($cmd eq "--progflags") {
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$progflags = "," . shift;
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}
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}
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sub hex2modhex {
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my $_ = shift;
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tr/0123456789abcdef/cbdefghijklnrtuv/;
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return $_;
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}
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sub gethexrand {
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my $cnt = shift;
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my $buf;
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open (FH, $device) or die "Cannot open $device for reading";
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read (FH, $buf, $cnt) or die "Cannot read from $device";
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close FH;
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return lc(unpack("H*", $buf));
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}
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# main
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my $now = strftime "%Y-%m-%dT%H:%M:%S", localtime;
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my $start = shift @ARGV;
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my $end = shift @ARGV || $start;
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my $ctr;
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print "# ykksm 1\n";
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print "# start $start end $end device $device\n" if ($verbose);
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print "# serialnr,identity,internaluid,aeskey,lockpw,created,accessed[,progflags]\n";
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$ctr = $start;
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while ($ctr <= $end) {
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my $hexctr = sprintf "%012x", $ctr;
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my $modhexctr = hex2modhex($hexctr);
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my $internaluid = gethexrand(6);
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my $aeskey = gethexrand(16);
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my $lockpw = gethexrand(6);
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print "# hexctr $hexctr modhexctr $modhexctr\n" if ($verbose);
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printf "$ctr,$modhexctr,$internaluid,$aeskey,$lockpw,$now,$progflags\n";
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$ctr++;
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}
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exit 0;
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