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#!/usr/bin/perl
#
# CA - wrapper around ca to make it easier to use ... basically ca requires
# some setup stuff to be done before you can use it and this makes
# things easier between now and when Eric is convinced to fix it :-)
#
# CA -newca ... will setup the right stuff
# CA -newreq[-nodes] ... will generate a certificate request
# CA -sign ... will sign the generated request and output
#
# At the end of that grab newreq.pem and newcert.pem (one has the key
# and the other the certificate) and cat them together and that is what
# you want/need ... I'll make even this a little cleaner later.
#
#
# 12-Jan-96 tjh Added more things ... including CA -signcert which
# converts a certificate to a request and then signs it.
# 10-Jan-96 eay Fixed a few more bugs and added the SSLEAY_CONFIG
# environment variable so this can be driven from
# a script.
# 25-Jul-96 eay Cleaned up filenames some more.
# 11-Jun-96 eay Fixed a few filename missmatches.
# 03-May-96 eay Modified to use 'ssleay cmd' instead of 'cmd'.
# 18-Apr-96 tjh Original hacking
#
# Tim Hudson
# tjh@cryptsoft.com
#
# 27-Apr-98 snh Translation into perl, fix existing CA bug.
#
#
# Steve Henson
# shenson@bigfoot.com
# default openssl.cnf file has setup as per the following
# demoCA ... where everything is stored
my $openssl;
if(defined $ENV{OPENSSL}) {
$openssl = $ENV{OPENSSL};
} else {
$openssl = "openssl";
$ENV{OPENSSL} = $openssl;
}
$SSLEAY_CONFIG=$ENV{"SSLEAY_CONFIG"};
$DAYS="-days 365"; # 1 year
$CADAYS="-days 1095"; # 3 years
$REQ="$openssl req $SSLEAY_CONFIG";
$CA="$openssl ca $SSLEAY_CONFIG";
$VERIFY="$openssl verify";
$X509="$openssl x509";
$PKCS12="$openssl pkcs12";
$CATOP="./demoCA";
$CAKEY="cakey.pem";
$CAREQ="careq.pem";
$CACERT="cacert.pem";
$DIRMODE = 0777;
$RET = 0;
foreach (@ARGV) {
if ( /^(-\?|-h|-help)$/ ) {
print STDERR "usage: CA -newcert|-newreq|-newreq-nodes|-newca|-sign|-verify\n";
print STDERR "usage: CA -signcert certfile keyfile|-newcert|-newreq|-newca|-sign|-verify\n";
exit 0;
} elsif (/^-newcert$/) {
# create a certificate
system ("$REQ -new -x509 -keyout newkey.pem -out newcert.pem $DAYS");
$RET=$?;
print "Certificate is in newcert.pem, private key is in newkey.pem\n"
} elsif (/^-newreq$/) {
# create a certificate request
system ("$REQ -new -keyout newkey.pem -out newreq.pem $DAYS");
$RET=$?;
print "Request is in newreq.pem, private key is in newkey.pem\n";
} elsif (/^-newreq-nodes$/) {
# create a certificate request
system ("$REQ -new -nodes -keyout newkey.pem -out newreq.pem $DAYS");
$RET=$?;
print "Request is in newreq.pem, private key is in newkey.pem\n";
} elsif (/^-newca$/) {
# if explicitly asked for or it doesn't exist then setup the
# directory structure that Eric likes to manage things
$NEW="1";
if ( "$NEW" || ! -f "${CATOP}/serial" ) {
# create the directory hierarchy
mkdir $CATOP, $DIRMODE;
mkdir "${CATOP}/certs", $DIRMODE;
mkdir "${CATOP}/crl", $DIRMODE ;
mkdir "${CATOP}/newcerts", $DIRMODE;
mkdir "${CATOP}/private", $DIRMODE;
open OUT, ">${CATOP}/index.txt";
close OUT;
open OUT, ">${CATOP}/crlnumber";
print OUT "01\n";
close OUT;
}
if ( ! -f "${CATOP}/private/$CAKEY" ) {
print "CA certificate filename (or enter to create)\n";
$FILE = <STDIN>;
chop $FILE;
# ask user for existing CA certificate
if ($FILE) {
cp_pem($FILE,"${CATOP}/private/$CAKEY", "PRIVATE");
cp_pem($FILE,"${CATOP}/$CACERT", "CERTIFICATE");
$RET=$?;
} else {
print "Making CA certificate ...\n";
system ("$REQ -new -keyout " .
"${CATOP}/private/$CAKEY -out ${CATOP}/$CAREQ");
system ("$CA -create_serial " .
"-out ${CATOP}/$CACERT $CADAYS -batch " .
"-keyfile ${CATOP}/private/$CAKEY -selfsign " .
"-extensions v3_ca " .
"-infiles ${CATOP}/$CAREQ ");
$RET=$?;
}
}
} elsif (/^-pkcs12$/) {
my $cname = $ARGV[1];
$cname = "My Certificate" unless defined $cname;
system ("$PKCS12 -in newcert.pem -inkey newkey.pem " .
"-certfile ${CATOP}/$CACERT -out newcert.p12 " .
"-export -name \"$cname\"");
$RET=$?;
print "PKCS #12 file is in newcert.p12\n";
exit $RET;
} elsif (/^-xsign$/) {
system ("$CA -policy policy_anything -infiles newreq.pem");
$RET=$?;
} elsif (/^(-sign|-signreq)$/) {
system ("$CA -policy policy_anything -out newcert.pem " .
"-infiles newreq.pem");
$RET=$?;
print "Signed certificate is in newcert.pem\n";
} elsif (/^(-signCA)$/) {
system ("$CA -policy policy_anything -out newcert.pem " .
"-extensions v3_ca -infiles newreq.pem");
$RET=$?;
print "Signed CA certificate is in newcert.pem\n";
} elsif (/^-signcert$/) {
system ("$X509 -x509toreq -in newreq.pem -signkey newreq.pem " .
"-out tmp.pem");
system ("$CA -policy policy_anything -out newcert.pem " .
"-infiles tmp.pem");
$RET = $?;
print "Signed certificate is in newcert.pem\n";
} elsif (/^-verify$/) {
if (shift) {
foreach $j (@ARGV) {
system ("$VERIFY -CAfile $CATOP/$CACERT $j");
$RET=$? if ($? != 0);
}
exit $RET;
} else {
system ("$VERIFY -CAfile $CATOP/$CACERT newcert.pem");
$RET=$?;
exit 0;
}
} else {
print STDERR "Unknown arg $_\n";
print STDERR "usage: CA -newcert|-newreq|-newreq-nodes|-newca|-sign|-verify\n";
print STDERR "usage: CA -signcert certfile keyfile|-newcert|-newreq|-newca|-sign|-verify\n";
exit 1;
}
}
exit $RET;
sub cp_pem {
my ($infile, $outfile, $bound) = @_;
open IN, $infile;
open OUT, ">$outfile";
my $flag = 0;
while (<IN>) {
$flag = 1 if (/^-----BEGIN.*$bound/) ;
print OUT $_ if ($flag);
if (/^-----END.*$bound/) {
close IN;
close OUT;
return;
}
}
}
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