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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /openssl/demos/prime
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Checked in the following released items:
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Diffstat (limited to 'openssl/demos/prime')
-rw-r--r--openssl/demos/prime/Makefile20
-rw-r--r--openssl/demos/prime/prime.c101
2 files changed, 121 insertions, 0 deletions
diff --git a/openssl/demos/prime/Makefile b/openssl/demos/prime/Makefile
new file mode 100644
index 000000000..0166cd46f
--- /dev/null
+++ b/openssl/demos/prime/Makefile
@@ -0,0 +1,20 @@
+CC=cc
+CFLAGS= -g -I../../include -Wall
+LIBS= -L../.. -lcrypto
+EXAMPLES=prime
+
+all: $(EXAMPLES)
+
+prime: prime.o
+ $(CC) -o prime prime.o $(LIBS)
+
+clean:
+ rm -f $(EXAMPLES) *.o
+
+test: all
+ @echo Test creating a 128-bit prime
+ ./prime 128
+ @echo Test creating a 256-bit prime
+ ./prime 256
+ @echo Test creating a 512-bit prime
+ ./prime 512
diff --git a/openssl/demos/prime/prime.c b/openssl/demos/prime/prime.c
new file mode 100644
index 000000000..103e0efc0
--- /dev/null
+++ b/openssl/demos/prime/prime.c
@@ -0,0 +1,101 @@
+/* demos/prime/prime.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * 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 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 acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS 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 AUTHOR OR 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.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <openssl/bn.h>
+
+void callback(type,num)
+int type,num;
+ {
+ if (type == 0)
+ fprintf(stderr,".");
+ else if (type == 1)
+ fprintf(stderr,"+");
+ else if (type == 2)
+ fprintf(stderr,"*");
+ fflush(stderr);
+ }
+
+int main(argc,argv)
+int argc;
+char *argv[];
+ {
+ BIGNUM *rand;
+ int num=256;
+
+ /* we should really call RAND_seed(char *bytes,int num);
+ * to fully initalise the random number generator */
+ if (argc >= 2)
+ {
+ num=atoi(argv[1]);
+ if (num == 0) num=256;
+ }
+
+ fprintf(stderr,"generate a strong prime\n");
+ rand=BN_generate_prime(NULL,num,1,NULL,NULL,callback,NULL);
+ /* change the third parameter to 1 for a strong prime */
+ fprintf(stderr,"\n");
+
+ BN_print_fp(stdout,rand);
+ fprintf(stdout,"\n");
+ BN_free(rand);
+ exit(0);
+ return(0);
+ }
+