Import OpenSSL 1.0.2k (as of svn r86089)

apps/prime.c

@@ -0,0 +1,159 @@
+/* ====================================================================
+ * 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 "apps.h"
+#include <openssl/bn.h>
+
+#undef PROG
+#define PROG prime_main
+
+int MAIN(int, char **);
+
+int MAIN(int argc, char **argv)
+{
+    int hex = 0;
+    int checks = 20;
+    int generate = 0;
+    int bits = 0;
+    int safe = 0;
+    BIGNUM *bn = NULL;
+    BIO *bio_out;
+
+    apps_startup();
+
+    if (bio_err == NULL)
+        if ((bio_err = BIO_new(BIO_s_file())) != NULL)
+            BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
+
+    --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 = atoi(*++argv);
+        else if (!strcmp(*argv, "-safe"))
+            safe = 1;
+        else if (!strcmp(*argv, "-checks"))
+            if (--argc < 1)
+                goto bad;
+            else
+                checks = atoi(*++argv);
+        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);
+#ifdef OPENSSL_SYS_VMS
+        {
+            BIO *tmpbio = BIO_new(BIO_f_linebuffer());
+            bio_out = BIO_push(tmpbio, bio_out);
+        }
+#endif
+    }
+
+    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);
+        OPENSSL_free(s);
+    } else {
+        int r;
+
+        if (hex)
+            r = BN_hex2bn(&bn, argv[0]);
+        else
+            r = BN_dec2bn(&bn, argv[0]);
+
+        if(!r) {
+            BIO_printf(bio_err, "Failed to process value (%s)\n", argv[0]);
+            goto end;
+        }
+
+        BN_print(bio_out, bn);
+        BIO_printf(bio_out, " is %sprime\n",
+                   BN_is_prime_ex(bn, checks, NULL, NULL) ? "" : "not ");
+    }
+
+ end:
+    BN_free(bn);
+    BIO_free_all(bio_out);
+
+    return 0;
+
+ bad:
+    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;
+}