1 files changed, 147 insertions, 0 deletions

diff --git a/src/usr.bin/openssl/prime.c b/src/usr.bin/openssl/prime.c
new file mode 100644
index 0000000000..e7fb3257d8
--- /dev/null
+++ b/src/usr.bin/openssl/prime.c
@@ -0,0 +1,147 @@
+/* $OpenBSD: prime.c,v 1.1 2014/08/26 17:47:25 jsing Exp $ */
+/* ====================================================================
+ * Copyright (c) 2004 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
+ *    openssl-core@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.
+ *
+ */
+
+#include <string.h>
+#include <limits.h>
+
+#include "apps.h"
+
+#include <openssl/bn.h>
+
+int prime_main(int, char **);
+
+int
+prime_main(int argc, char **argv)
+{
+        int hex = 0;
+        int checks = 20;
+        int generate = 0;
+        int bits = 0;
+        int safe = 0;
+        BIGNUM *bn = NULL;
+        const char *errstr = NULL;
+        BIO *bio_out;
+
+        --argc;
+        ++argv;
+        while (argc >= 1 && **argv == '-') {
+                if (!strcmp(*argv, "-hex"))
+                        hex = 1;
+                else if (!strcmp(*argv, "-generate"))
+                        generate = 1;
+                else if (!strcmp(*argv, "-bits")) {
+                        if (--argc < 1)
+                                goto bad;
+                        else
+                                bits = strtonum(*(++argv), 0, INT_MAX, &errstr);
+                        if (errstr)
+                                goto bad;
+                } else if (!strcmp(*argv, "-safe"))
+                        safe = 1;
+                else if (!strcmp(*argv, "-checks")) {
+                        if (--argc < 1)
+                                goto bad;
+                        else
+                                checks = strtonum(*(++argv), 0, INT_MAX, &errstr);
+                        if (errstr)
+                                goto bad;
+                } else {
+                        BIO_printf(bio_err, "Unknown option '%s'\n", *argv);
+                        goto bad;
+                }
+                --argc;
+                ++argv;
+        }
+
+        if (argv[0] == NULL && !generate) {
+                BIO_printf(bio_err, "No prime specified\n");
+                goto bad;
+        }
+        if ((bio_out = BIO_new(BIO_s_file())) != NULL) {
+                BIO_set_fp(bio_out, stdout, BIO_NOCLOSE);
+        }
+        if (generate) {
+                char *s;
+
+                if (!bits) {
+                        BIO_printf(bio_err, "Specifiy the number of bits.\n");
+                        return 1;
+                }
+                bn = BN_new();
+                BN_generate_prime_ex(bn, bits, safe, NULL, NULL, NULL);
+                s = hex ? BN_bn2hex(bn) : BN_bn2dec(bn);
+                BIO_printf(bio_out, "%s\n", s);
+                free(s);
+        } else {
+                if (hex)
+                        BN_hex2bn(&bn, argv[0]);
+                else
+                        BN_dec2bn(&bn, argv[0]);
+
+                BN_print(bio_out, bn);
+                BIO_printf(bio_out, " is %sprime\n",
+                    BN_is_prime_ex(bn, checks, NULL, NULL) ? "" : "not ");
+        }
+
+        BN_free(bn);
+        BIO_free_all(bio_out);
+
+        return 0;
+
+bad:
+        if (errstr)
+                BIO_printf(bio_err, "invalid argument %s: %s\n", *argv, errstr);
+        else {
+                BIO_printf(bio_err, "options are\n");
+                BIO_printf(bio_err, "%-14s hex\n", "-hex");
+                BIO_printf(bio_err, "%-14s number of checks\n", "-checks <n>");
+        }
+        return 1;
+}