Add new 'spkac' utility and several SPKAC utility functions.
diff --git a/apps/spkac.c b/apps/spkac.c
new file mode 100644
index 0000000..74bdae7
--- /dev/null
+++ b/apps/spkac.c
@@ -0,0 +1,255 @@
+/* apps/spkac.c */
+
+/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+ * project 1999. Based on an original idea by Massimiliano Pala
+ * (madwolf@openca.org).
+ */
+/* ====================================================================
+ * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "apps.h"
+#include <openssl/bio.h>
+#include <openssl/err.h>
+#include <openssl/rsa.h>
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+#include <openssl/pem.h>
+
+#undef PROG
+#define PROG spkac_main
+
+/* -in arg - input file - default stdin
+ * -out arg - output file - default stdout
+ */
+
+int MAIN(int argc, char **argv)
+ {
+ int i,badops=0, ret = 1;
+ BIO *in = NULL,*out = NULL, *key = NULL;
+ int verify=0,noout=0;
+ char *infile = NULL,*outfile = NULL,*prog;
+ char *spkac = "SPKAC", *spksect = "default", *spkstr = NULL;
+ char *challenge = NULL, *keyfile = NULL;
+ LHASH *conf;
+ NETSCAPE_SPKI *spki = NULL;
+ EVP_PKEY *pkey = NULL;
+
+ apps_startup();
+
+ if (!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
+
+ prog=argv[0];
+ argc--;
+ argv++;
+ while (argc >= 1)
+ {
+ if (strcmp(*argv,"-in") == 0)
+ {
+ if (--argc < 1) goto bad;
+ infile= *(++argv);
+ }
+ else if (strcmp(*argv,"-out") == 0)
+ {
+ if (--argc < 1) goto bad;
+ outfile= *(++argv);
+ }
+ else if (strcmp(*argv,"-key") == 0)
+ {
+ if (--argc < 1) goto bad;
+ keyfile= *(++argv);
+ }
+ else if (strcmp(*argv,"-challenge") == 0)
+ {
+ if (--argc < 1) goto bad;
+ challenge= *(++argv);
+ }
+ else if (strcmp(*argv,"-spkac") == 0)
+ {
+ if (--argc < 1) goto bad;
+ spkac= *(++argv);
+ }
+ else if (strcmp(*argv,"-spksect") == 0)
+ {
+ if (--argc < 1) goto bad;
+ spksect= *(++argv);
+ }
+ else if (strcmp(*argv,"-noout") == 0)
+ noout=1;
+ else if (strcmp(*argv,"-verify") == 0)
+ verify=1;
+ else badops = 1;
+ argc--;
+ argv++;
+ }
+
+ if (badops)
+ {
+bad:
+ BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog);
+ BIO_printf(bio_err,"where options are\n");
+ BIO_printf(bio_err," -in arg input file\n");
+ BIO_printf(bio_err," -out arg output file\n");
+ BIO_printf(bio_err," -spkac arg alternative SPKAC name\n");
+ BIO_printf(bio_err," -noout don't print SPKAC\n");
+ BIO_printf(bio_err," -verify verify SPKAC signature\n");
+ goto end;
+ }
+
+ ERR_load_crypto_strings();
+
+ if(keyfile) {
+ if(strcmp(keyfile, "-")) key = BIO_new_file(keyfile, "r");
+ else key = BIO_new_fp(stdin, BIO_NOCLOSE);
+ if(!key) {
+ BIO_printf(bio_err, "Error opening key file\n");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ pkey = PEM_read_bio_PrivateKey(key, NULL, NULL, NULL);
+ if(!pkey) {
+ BIO_printf(bio_err, "Error reading private key\n");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ spki = NETSCAPE_SPKI_new();
+ if(challenge) ASN1_STRING_set(spki->spkac->challenge,
+ challenge, strlen(challenge));
+ NETSCAPE_SPKI_set_pubkey(spki, pkey);
+ NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
+ spkstr = NETSCAPE_SPKI_b64_encode(spki);
+
+ if (outfile) out = BIO_new_file(outfile, "w");
+ else out = BIO_new_fp(stdout, BIO_NOCLOSE);
+
+ if(!out) {
+ BIO_printf(bio_err, "Error opening output file\n");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ BIO_printf(out, "SPKAC=%s\n", spkstr);
+ ret = 0;
+ goto end;
+ }
+
+
+
+ if (infile) in = BIO_new_file(infile, "r");
+ else in = BIO_new_fp(stdin, BIO_NOCLOSE);
+
+ if(!in) {
+ BIO_printf(bio_err, "Error opening input file\n");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+
+ conf = CONF_load_bio(NULL, in, NULL);
+
+ if(!conf) {
+ BIO_printf(bio_err, "Error parsing config file\n");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+
+ spkstr = CONF_get_string(conf, spksect, spkac);
+
+ if(!spkstr) {
+ BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+
+ spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
+ if(!spki) {
+ BIO_printf(bio_err, "Error loading SPKAC\n");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+
+ if (outfile) out = BIO_new_file(outfile, "w");
+ else out = BIO_new_fp(stdout, BIO_NOCLOSE);
+
+ if(!out) {
+ BIO_printf(bio_err, "Error opening output file\n");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+
+ if(!noout) NETSCAPE_SPKI_print(out, spki);
+ if(verify) {
+ EVP_PKEY *pktmp;
+ pktmp = NETSCAPE_SPKI_get_pubkey(spki);
+ i = NETSCAPE_SPKI_verify(spki, pktmp);
+ EVP_PKEY_free(pktmp);
+ if(i) BIO_printf(bio_err, "Signature OK\n");
+ else {
+ BIO_printf(bio_err, "Signature Failure\n");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ }
+
+ ret = 0;
+
+end:
+ NETSCAPE_SPKI_free(spki);
+ BIO_free(in);
+ BIO_free(out);
+ BIO_free(key);
+ EVP_PKEY_free(pkey);
+ if(spkstr) Free(spkstr);
+ EXIT(ret);
+ }
