CA.pl revision 101613 
1#!/usr/local/bin/perl
2#
3# CA - wrapper around ca to make it easier to use ... basically ca requires
4#      some setup stuff to be done before you can use it and this makes
5#      things easier between now and when Eric is convinced to fix it :-)
6#
7# CA -newca ... will setup the right stuff
8# CA -newreq ... will generate a certificate request
9# CA -sign ... will sign the generated request and output
10#
11# At the end of that grab newreq.pem and newcert.pem (one has the key
12# and the other the certificate) and cat them together and that is what
13# you want/need ... I'll make even this a little cleaner later.
14#
15#
16# 12-Jan-96 tjh    Added more things ... including CA -signcert which
17#                  converts a certificate to a request and then signs it.
18# 10-Jan-96 eay    Fixed a few more bugs and added the SSLEAY_CONFIG
19#		   environment variable so this can be driven from
20#		   a script.
21# 25-Jul-96 eay    Cleaned up filenames some more.
22# 11-Jun-96 eay    Fixed a few filename missmatches.
23# 03-May-96 eay    Modified to use 'ssleay cmd' instead of 'cmd'.
24# 18-Apr-96 tjh    Original hacking
25#
26# Tim Hudson
27# tjh@cryptsoft.com
28#
29
30# 27-Apr-98 snh    Translation into perl, fix existing CA bug.
31#
32#
33# Steve Henson
34# shenson@bigfoot.com
35
36# default openssl.cnf file has setup as per the following
37# demoCA ... where everything is stored
38
39$SSLEAY_CONFIG=$ENV{"SSLEAY_CONFIG"};
40$DAYS="-days 365";
41$REQ="openssl req $SSLEAY_CONFIG";
42$CA="openssl ca $SSLEAY_CONFIG";
43$VERIFY="openssl verify";
44$X509="openssl x509";
45$PKCS12="openssl pkcs12";
46
47$CATOP="./demoCA";
48$CAKEY="cakey.pem";
49$CACERT="cacert.pem";
50
51$DIRMODE = 0777;
52
53$RET = 0;
54
55foreach (@ARGV) {
56	if ( /^(-\?|-h|-help)$/ ) {
57	    print STDERR "usage: CA -newcert|-newreq|-newca|-sign|-verify\n";
58	    exit 0;
59	} elsif (/^-newcert$/) {
60	    # create a certificate
61	    system ("$REQ -new -x509 -keyout newreq.pem -out newreq.pem $DAYS");
62	    $RET=$?;
63	    print "Certificate (and private key) is in newreq.pem\n"
64	} elsif (/^-newreq$/) {
65	    # create a certificate request
66	    system ("$REQ -new -keyout newreq.pem -out newreq.pem $DAYS");
67	    $RET=$?;
68	    print "Request (and private key) is in newreq.pem\n";
69	} elsif (/^-newca$/) {
70		# if explicitly asked for or it doesn't exist then setup the
71		# directory structure that Eric likes to manage things
72	    $NEW="1";
73	    if ( "$NEW" || ! -f "${CATOP}/serial" ) {
74		# create the directory hierarchy
75		mkdir $CATOP, $DIRMODE;
76		mkdir "${CATOP}/certs", $DIRMODE;
77		mkdir "${CATOP}/crl", $DIRMODE ;
78		mkdir "${CATOP}/newcerts", $DIRMODE;
79		mkdir "${CATOP}/private", $DIRMODE;
80		open OUT, ">${CATOP}/serial";
81		print OUT "01\n";
82		close OUT;
83		open OUT, ">${CATOP}/index.txt";
84		close OUT;
85	    }
86	    if ( ! -f "${CATOP}/private/$CAKEY" ) {
87		print "CA certificate filename (or enter to create)\n";
88		$FILE = <STDIN>;
89
90		chop $FILE;
91
92		# ask user for existing CA certificate
93		if ($FILE) {
94		    cp_pem($FILE,"${CATOP}/private/$CAKEY", "PRIVATE");
95		    cp_pem($FILE,"${CATOP}/$CACERT", "CERTIFICATE");
96		    $RET=$?;
97		} else {
98		    print "Making CA certificate ...\n";
99		    system ("$REQ -new -x509 -keyout " .
100			"${CATOP}/private/$CAKEY -out ${CATOP}/$CACERT $DAYS");
101		    $RET=$?;
102		}
103	    }
104	} elsif (/^-pkcs12$/) {
105	    my $cname = $ARGV[1];
106	    $cname = "My Certificate" unless defined $cname;
107	    system ("$PKCS12 -in newcert.pem -inkey newreq.pem " .
108			"-certfile ${CATOP}/$CACERT -out newcert.p12 " .
109			"-export -name \"$cname\"");
110	    $RET=$?;
111	    exit $RET;
112	} elsif (/^-xsign$/) {
113	    system ("$CA -policy policy_anything -infiles newreq.pem");
114	    $RET=$?;
115	} elsif (/^(-sign|-signreq)$/) {
116	    system ("$CA -policy policy_anything -out newcert.pem " .
117							"-infiles newreq.pem");
118	    $RET=$?;
119	    print "Signed certificate is in newcert.pem\n";
120	} elsif (/^(-signCA)$/) {
121	    system ("$CA -policy policy_anything -out newcert.pem " .
122					"-extensions v3_ca -infiles newreq.pem");
123	    $RET=$?;
124	    print "Signed CA certificate is in newcert.pem\n";
125	} elsif (/^-signcert$/) {
126	    system ("$X509 -x509toreq -in newreq.pem -signkey newreq.pem " .
127								"-out tmp.pem");
128	    system ("$CA -policy policy_anything -out newcert.pem " .
129							"-infiles tmp.pem");
130	    $RET = $?;
131	    print "Signed certificate is in newcert.pem\n";
132	} elsif (/^-verify$/) {
133	    if (shift) {
134		foreach $j (@ARGV) {
135		    system ("$VERIFY -CAfile $CATOP/$CACERT $j");
136		    $RET=$? if ($? != 0);
137		}
138		exit $RET;
139	    } else {
140		    system ("$VERIFY -CAfile $CATOP/$CACERT newcert.pem");
141		    $RET=$?;
142	    	    exit 0;
143	    }
144	} else {
145	    print STDERR "Unknown arg $_\n";
146	    print STDERR "usage: CA -newcert|-newreq|-newca|-sign|-verify\n";
147	    exit 1;
148	}
149}
150
151exit $RET;
152
153sub cp_pem {
154my ($infile, $outfile, $bound) = @_;
155open IN, $infile;
156open OUT, ">$outfile";
157my $flag = 0;
158while (<IN>) {
159	$flag = 1 if (/^-----BEGIN.*$bound/) ;
160	print OUT $_ if ($flag);
161	if (/^-----END.*$bound/) {
162		close IN;
163		close OUT;
164		return;
165	}
166}
167}
168
169