Initial import of OpenSSL 0.9.4, sans IDEA and RSA code for patent

infringement reasons.

1 files changed, 1016 insertions, 0 deletions

diff --git a/crypto/openssl/crypto/bn/bntest.c b/crypto/openssl/crypto/bn/bntest.c
new file mode 100644
index 0000000..df4b81f
--- /dev/null
+++ b/crypto/openssl/crypto/bn/bntest.c
@@ -0,0 +1,1016 @@
+/* crypto/bn/bntest.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 <string.h>
+
+#include "openssl/e_os.h"
+
+#include <openssl/bio.h>
+#include <openssl/bn.h>
+#include <openssl/rand.h>
+#include <openssl/x509.h>
+#include <openssl/err.h>
+
+#ifdef WINDOWS
+#include "../bio/bss_file.c"
+#endif
+
+int test_add(BIO *bp);
+int test_sub(BIO *bp);
+int test_lshift1(BIO *bp);
+int test_lshift(BIO *bp,BN_CTX *ctx,BIGNUM *a_);
+int test_rshift1(BIO *bp);
+int test_rshift(BIO *bp,BN_CTX *ctx);
+int test_div(BIO *bp,BN_CTX *ctx);
+int test_div_recp(BIO *bp,BN_CTX *ctx);
+int test_mul(BIO *bp);
+int test_sqr(BIO *bp,BN_CTX *ctx);
+int test_mont(BIO *bp,BN_CTX *ctx);
+int test_mod(BIO *bp,BN_CTX *ctx);
+int test_mod_mul(BIO *bp,BN_CTX *ctx);
+int test_mod_exp(BIO *bp,BN_CTX *ctx);
+int test_exp(BIO *bp,BN_CTX *ctx);
+int rand_neg(void);
+static int results=0;
+
+#ifdef NO_STDIO
+#define APPS_WIN16
+#include "bss_file.c"
+#endif
+
+static unsigned char lst1[]="\xC6\x4F\x43\x04\x2A\xEA\xCA\x6E\x58\x36\x80\x5B\xE8\xC9"
+"\x9B\x04\x5D\x48\x36\xC2\xFD\x16\xC9\x64\xF0";
+
+int main(int argc, char *argv[])
+	{
+	BN_CTX *ctx;
+	BIO *out;
+	char *outfile=NULL;
+
+	argc--;
+	argv++;
+	while (argc >= 1)
+		{
+		if (strcmp(*argv,"-results") == 0)
+			results=1;
+		else if (strcmp(*argv,"-out") == 0)
+			{
+			if (--argc < 1) break;
+			outfile= *(++argv);
+			}
+		argc--;
+		argv++;
+		}
+
+
+	ctx=BN_CTX_new();
+	if (ctx == NULL) exit(1);
+
+	out=BIO_new(BIO_s_file());
+	if (out == NULL) exit(1);
+	if (outfile == NULL)
+		{
+		BIO_set_fp(out,stdout,BIO_NOCLOSE);
+		}
+	else
+		{
+		if (!BIO_write_filename(out,outfile))
+			{
+			perror(outfile);
+			exit(1);
+			}
+		}
+
+	if (!results)
+		BIO_puts(out,"obase=16\nibase=16\n");
+
+	fprintf(stderr,"test BN_add\n");
+	if (!test_add(out)) goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_sub\n");
+	if (!test_sub(out)) goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_lshift1\n");
+	if (!test_lshift1(out)) goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_lshift (fixed)\n");
+	if (!test_lshift(out,ctx,BN_bin2bn(lst1,sizeof(lst1)-1,NULL)))
+	    goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_lshift\n");
+	if (!test_lshift(out,ctx,NULL)) goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_rshift1\n");
+	if (!test_rshift1(out)) goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_rshift\n");
+	if (!test_rshift(out,ctx)) goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_sqr\n");
+	if (!test_sqr(out,ctx)) goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_mul\n");
+	if (!test_mul(out)) goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_div\n");
+	if (!test_div(out,ctx)) goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_div_recp\n");
+	if (!test_div_recp(out,ctx)) goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_mod\n");
+	if (!test_mod(out,ctx)) goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_mod_mul\n");
+	if (!test_mod_mul(out,ctx)) goto err;
+	fflush(stdout);
+
+/*
+	fprintf(stderr,"test BN_mont\n");
+	if (!test_mont(out,ctx)) goto err;
+	fflush(stdout);
+*/
+	fprintf(stderr,"test BN_mod_exp\n");
+	if (!test_mod_exp(out,ctx)) goto err;
+	fflush(stdout);
+
+	fprintf(stderr,"test BN_exp\n");
+	if (!test_exp(out,ctx)) goto err;
+	fflush(stdout);
+
+/**/
+	exit(0);
+err:
+	BIO_puts(out,"1\n"); /* make sure bc fails if we are piping to it */
+	ERR_load_crypto_strings();
+	ERR_print_errors(out);
+	exit(1);
+	return(1);
+	}
+
+int test_add(BIO *bp)
+	{
+	BIGNUM a,b,c;
+	int i;
+	int j;
+
+	BN_init(&a);
+	BN_init(&b);
+	BN_init(&c);
+
+	BN_rand(&a,512,0,0);
+	for (i=0; i<100; i++)
+		{
+		BN_rand(&b,450+i,0,0);
+		a.neg=rand_neg();
+		b.neg=rand_neg();
+		if (bp == NULL)
+			for (j=0; j<10000; j++)
+				BN_add(&c,&a,&b);
+		BN_add(&c,&a,&b);
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,&a);
+				BIO_puts(bp," + ");
+				BN_print(bp,&b);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,&c);
+			BIO_puts(bp,"\n");
+			}
+		a.neg=!a.neg;
+		b.neg=!b.neg;
+		BN_add(&c,&c,&b);
+		BN_add(&c,&c,&a);
+		if(!BN_is_zero(&c))
+		    {
+		    BIO_puts(bp,"Add test failed!\n");
+		    return 0;
+		    }
+		}
+	BN_free(&a);
+	BN_free(&b);
+	BN_free(&c);
+	return(1);
+	}
+
+int test_sub(BIO *bp)
+	{
+	BIGNUM a,b,c;
+	int i;
+	int j;
+
+	BN_init(&a);
+	BN_init(&b);
+	BN_init(&c);
+
+	BN_rand(&a,512,0,0);
+	for (i=0; i<100; i++)
+		{
+		BN_rand(&b,400+i,0,0);
+		a.neg=rand_neg();
+		b.neg=rand_neg();
+		if (bp == NULL)
+			for (j=0; j<10000; j++)
+				BN_sub(&c,&a,&b);
+		BN_sub(&c,&a,&b);
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,&a);
+				BIO_puts(bp," - ");
+				BN_print(bp,&b);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,&c);
+			BIO_puts(bp,"\n");
+			}
+		BN_add(&c,&c,&b);
+		BN_sub(&c,&c,&a);
+		if(!BN_is_zero(&c))
+		    {
+		    BIO_puts(bp,"Subtract test failed!\n");
+		    return 0;
+		    }
+		}
+	BN_free(&a);
+	BN_free(&b);
+	BN_free(&c);
+	return(1);
+	}
+
+int test_div(BIO *bp, BN_CTX *ctx)
+	{
+	BIGNUM a,b,c,d,e;
+	int i;
+	int j;
+
+	BN_init(&a);
+	BN_init(&b);
+	BN_init(&c);
+	BN_init(&d);
+	BN_init(&e);
+
+	BN_rand(&a,400,0,0);
+	for (i=0; i<100; i++)
+		{
+		BN_rand(&b,50+i,0,0);
+		a.neg=rand_neg();
+		b.neg=rand_neg();
+		if (bp == NULL)
+			for (j=0; j<100; j++)
+				BN_div(&d,&c,&a,&b,ctx);
+		BN_div(&d,&c,&a,&b,ctx);
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,&a);
+				BIO_puts(bp," / ");
+				BN_print(bp,&b);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,&d);
+			BIO_puts(bp,"\n");
+
+			if (!results)
+				{
+				BN_print(bp,&a);
+				BIO_puts(bp," % ");
+				BN_print(bp,&b);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,&c);
+			BIO_puts(bp,"\n");
+			}
+		BN_mul(&e,&d,&b,ctx);
+		BN_add(&d,&e,&c);
+		BN_sub(&d,&d,&a);
+		if(!BN_is_zero(&d))
+		    {
+		    BIO_puts(bp,"Division test failed!\n");
+		    return 0;
+		    }
+		}
+	BN_free(&a);
+	BN_free(&b);
+	BN_free(&c);
+	BN_free(&d);
+	BN_free(&e);
+	return(1);
+	}
+
+int test_div_recp(BIO *bp, BN_CTX *ctx)
+	{
+	BIGNUM a,b,c,d,e;
+	BN_RECP_CTX recp;
+	int i;
+	int j;
+
+	BN_RECP_CTX_init(&recp);
+	BN_init(&a);
+	BN_init(&b);
+	BN_init(&c);
+	BN_init(&d);
+	BN_init(&e);
+
+	BN_rand(&a,400,0,0);
+	for (i=0; i<100; i++)
+		{
+		BN_rand(&b,50+i,0,0);
+		a.neg=rand_neg();
+		b.neg=rand_neg();
+		BN_RECP_CTX_set(&recp,&b,ctx);
+		if (bp == NULL)
+			for (j=0; j<100; j++)
+				BN_div_recp(&d,&c,&a,&recp,ctx);
+		BN_div_recp(&d,&c,&a,&recp,ctx);
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,&a);
+				BIO_puts(bp," / ");
+				BN_print(bp,&b);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,&d);
+			BIO_puts(bp,"\n");
+
+			if (!results)
+				{
+				BN_print(bp,&a);
+				BIO_puts(bp," % ");
+				BN_print(bp,&b);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,&c);
+			BIO_puts(bp,"\n");
+			}
+		BN_mul(&e,&d,&b,ctx);
+		BN_add(&d,&e,&c);
+		BN_sub(&d,&d,&a);
+		if(!BN_is_zero(&d))
+		    {
+		    BIO_puts(bp,"Reciprocal division test failed!\n");
+		    return 0;
+		    }
+		}
+	BN_free(&a);
+	BN_free(&b);
+	BN_free(&c);
+	BN_free(&d);
+	BN_free(&e);
+	BN_RECP_CTX_free(&recp);
+	return(1);
+	}
+
+int test_mul(BIO *bp)
+	{
+	BIGNUM a,b,c,d,e;
+	int i;
+	int j;
+	BN_CTX ctx;
+
+	BN_CTX_init(&ctx);
+	BN_init(&a);
+	BN_init(&b);
+	BN_init(&c);
+	BN_init(&d);
+	BN_init(&e);
+
+	BN_rand(&a,200,0,0);
+	for (i=0; i<100; i++)
+		{
+		BN_rand(&b,250+i,0,0);
+		BN_rand(&b,200,0,0);
+		a.neg=rand_neg();
+		b.neg=rand_neg();
+		if (bp == NULL)
+			for (j=0; j<100; j++)
+				BN_mul(&c,&a,&b,&ctx);
+		BN_mul(&c,&a,&b,&ctx);
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,&a);
+				BIO_puts(bp," * ");
+				BN_print(bp,&b);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,&c);
+			BIO_puts(bp,"\n");
+			}
+		BN_div(&d,&e,&c,&a,&ctx);
+		BN_sub(&d,&d,&b);
+		if(!BN_is_zero(&d) || !BN_is_zero(&e))
+		    {
+		    BIO_puts(bp,"Multiplication test failed!\n");
+		    return 0;
+		    }
+		}
+	BN_free(&a);
+	BN_free(&b);
+	BN_free(&c);
+	BN_free(&d);
+	BN_free(&e);
+	BN_CTX_free(&ctx);
+	return(1);
+	}
+
+int test_sqr(BIO *bp, BN_CTX *ctx)
+	{
+	BIGNUM a,c,d,e;
+	int i;
+	int j;
+
+	BN_init(&a);
+	BN_init(&c);
+	BN_init(&d);
+	BN_init(&e);
+
+	for (i=0; i<40; i++)
+		{
+		BN_rand(&a,40+i*10,0,0);
+		a.neg=rand_neg();
+		if (bp == NULL)
+			for (j=0; j<100; j++)
+				BN_sqr(&c,&a,ctx);
+		BN_sqr(&c,&a,ctx);
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,&a);
+				BIO_puts(bp," * ");
+				BN_print(bp,&a);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,&c);
+			BIO_puts(bp,"\n");
+			}
+		BN_div(&d,&e,&c,&a,ctx);
+		BN_sub(&d,&d,&a);
+		if(!BN_is_zero(&d) || !BN_is_zero(&e))
+		    {
+		    BIO_puts(bp,"Square test failed!\n");
+		    return 0;
+		    }
+		}
+	BN_free(&a);
+	BN_free(&c);
+	BN_free(&d);
+	BN_free(&e);
+	return(1);
+	}
+
+int test_mont(BIO *bp, BN_CTX *ctx)
+	{
+	BIGNUM a,b,c,d,A,B;
+	BIGNUM n;
+	int i;
+	int j;
+	BN_MONT_CTX *mont;
+
+	BN_init(&a);
+	BN_init(&b);
+	BN_init(&c);
+	BN_init(&d);
+	BN_init(&A);
+	BN_init(&B);
+	BN_init(&n);
+
+	mont=BN_MONT_CTX_new();
+
+	BN_rand(&a,100,0,0); /**/
+	BN_rand(&b,100,0,0); /**/
+	for (i=0; i<10; i++)
+		{
+		BN_rand(&n,(100%BN_BITS2+1)*BN_BITS2*i*BN_BITS2,0,1); /**/
+		BN_MONT_CTX_set(mont,&n,ctx);
+
+		BN_to_montgomery(&A,&a,mont,ctx);
+		BN_to_montgomery(&B,&b,mont,ctx);
+
+		if (bp == NULL)
+			for (j=0; j<100; j++)
+				BN_mod_mul_montgomery(&c,&A,&B,mont,ctx);/**/
+		BN_mod_mul_montgomery(&c,&A,&B,mont,ctx);/**/
+		BN_from_montgomery(&A,&c,mont,ctx);/**/
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+#ifdef undef
+fprintf(stderr,"%d * %d %% %d\n",
+BN_num_bits(&a),
+BN_num_bits(&b),
+BN_num_bits(mont->N));
+#endif
+				BN_print(bp,&a);
+				BIO_puts(bp," * ");
+				BN_print(bp,&b);
+				BIO_puts(bp," % ");
+				BN_print(bp,&(mont->N));
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,&A);
+			BIO_puts(bp,"\n");
+			}
+		BN_mod_mul(&d,&a,&b,&n,ctx);
+		BN_sub(&d,&d,&A);
+		if(!BN_is_zero(&d))
+		    {
+		    BIO_puts(bp,"Montgomery multiplication test failed!\n");
+		    return 0;
+		    }
+		}
+	BN_MONT_CTX_free(mont);
+	BN_free(&a);
+	BN_free(&b);
+	BN_free(&c);
+	BN_free(&d);
+	BN_free(&A);
+	BN_free(&B);
+	BN_free(&n);
+	return(1);
+	}
+
+int test_mod(BIO *bp, BN_CTX *ctx)
+	{
+	BIGNUM *a,*b,*c,*d,*e;
+	int i;
+	int j;
+
+	a=BN_new();
+	b=BN_new();
+	c=BN_new();
+	d=BN_new();
+	e=BN_new();
+
+	BN_rand(a,1024,0,0); /**/
+	for (i=0; i<20; i++)
+		{
+		BN_rand(b,450+i*10,0,0); /**/
+		a->neg=rand_neg();
+		b->neg=rand_neg();
+		if (bp == NULL)
+			for (j=0; j<100; j++)
+				BN_mod(c,a,b,ctx);/**/
+		BN_mod(c,a,b,ctx);/**/
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,a);
+				BIO_puts(bp," % ");
+				BN_print(bp,b);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,c);
+			BIO_puts(bp,"\n");
+			}
+		BN_div(d,e,a,b,ctx);
+		BN_sub(e,e,c);
+		if(!BN_is_zero(e))
+		    {
+		    BIO_puts(bp,"Modulo test failed!\n");
+		    return 0;
+		    }
+		}
+	BN_free(a);
+	BN_free(b);
+	BN_free(c);
+	BN_free(d);
+	BN_free(e);
+	return(1);
+	}
+
+int test_mod_mul(BIO *bp, BN_CTX *ctx)
+	{
+	BIGNUM *a,*b,*c,*d,*e;
+	int i;
+
+	a=BN_new();
+	b=BN_new();
+	c=BN_new();
+	d=BN_new();
+	e=BN_new();
+
+	BN_rand(c,1024,0,0); /**/
+	for (i=0; i<10; i++)
+		{
+		BN_rand(a,475+i*10,0,0); /**/
+		BN_rand(b,425+i*10,0,0); /**/
+		a->neg=rand_neg();
+		b->neg=rand_neg();
+	/*	if (bp == NULL)
+			for (j=0; j<100; j++)
+				BN_mod_mul(d,a,b,c,ctx);*/ /**/
+
+		if (!BN_mod_mul(e,a,b,c,ctx))
+			{
+			unsigned long l;
+
+			while ((l=ERR_get_error()))
+				fprintf(stderr,"ERROR:%s\n",
+					ERR_error_string(l,NULL));
+			exit(1);
+			}
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,a);
+				BIO_puts(bp," * ");
+				BN_print(bp,b);
+				BIO_puts(bp," % ");
+				BN_print(bp,c);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,e);
+			BIO_puts(bp,"\n");
+			}
+		BN_mul(d,a,b,ctx);
+		BN_sub(d,d,e);
+		BN_div(a,b,d,c,ctx);
+		if(!BN_is_zero(b))
+		    {
+		    BIO_puts(bp,"Modulo multiply test failed!\n");
+		    return 0;
+		    }
+		}
+	BN_free(a);
+	BN_free(b);
+	BN_free(c);
+	BN_free(d);
+	BN_free(e);
+	return(1);
+	}
+
+int test_mod_exp(BIO *bp, BN_CTX *ctx)
+	{
+	BIGNUM *a,*b,*c,*d,*e;
+	int i;
+
+	a=BN_new();
+	b=BN_new();
+	c=BN_new();
+	d=BN_new();
+	e=BN_new();
+
+	BN_rand(c,30,0,1); /* must be odd for montgomery */
+	for (i=0; i<6; i++)
+		{
+		BN_rand(a,20+i*5,0,0); /**/
+		BN_rand(b,2+i,0,0); /**/
+
+		if (!BN_mod_exp(d,a,b,c,ctx))
+			return(00);
+
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,a);
+				BIO_puts(bp," ^ ");
+				BN_print(bp,b);
+				BIO_puts(bp," % ");
+				BN_print(bp,c);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,d);
+			BIO_puts(bp,"\n");
+			}
+		BN_exp(e,a,b,ctx);
+		BN_sub(e,e,d);
+		BN_div(a,b,e,c,ctx);
+		if(!BN_is_zero(b))
+		    {
+		    BIO_puts(bp,"Modulo exponentiation test failed!\n");
+		    return 0;
+		    }
+		}
+	BN_free(a);
+	BN_free(b);
+	BN_free(c);
+	BN_free(d);
+	BN_free(e);
+	return(1);
+	}
+
+int test_exp(BIO *bp, BN_CTX *ctx)
+	{
+	BIGNUM *a,*b,*d,*e,*one;
+	int i;
+
+	a=BN_new();
+	b=BN_new();
+	d=BN_new();
+	e=BN_new();
+	one=BN_new();
+	BN_one(one);
+
+	for (i=0; i<6; i++)
+		{
+		BN_rand(a,20+i*5,0,0); /**/
+		BN_rand(b,2+i,0,0); /**/
+
+		if (!BN_exp(d,a,b,ctx))
+			return(00);
+
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,a);
+				BIO_puts(bp," ^ ");
+				BN_print(bp,b);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,d);
+			BIO_puts(bp,"\n");
+			}
+		BN_one(e);
+		for( ; !BN_is_zero(b) ; BN_sub(b,b,one))
+		    BN_mul(e,e,a,ctx);
+		BN_sub(e,e,d);
+		if(!BN_is_zero(e))
+		    {
+		    BIO_puts(bp,"Exponentiation test failed!\n");
+		    return 0;
+		    }
+		}
+	BN_free(a);
+	BN_free(b);
+	BN_free(d);
+	BN_free(e);
+	BN_free(one);
+	return(1);
+	}
+
+int test_lshift(BIO *bp,BN_CTX *ctx,BIGNUM *a_)
+	{
+	BIGNUM *a,*b,*c,*d;
+	int i;
+
+	b=BN_new();
+	c=BN_new();
+	d=BN_new();
+	BN_one(c);
+
+	if(a_)
+	    a=a_;
+	else
+	    {
+	    a=BN_new();
+	    BN_rand(a,200,0,0); /**/
+	    a->neg=rand_neg();
+	    }
+	for (i=0; i<70; i++)
+		{
+		BN_lshift(b,a,i+1);
+		BN_add(c,c,c);
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,a);
+				BIO_puts(bp," * ");
+				BN_print(bp,c);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,b);
+			BIO_puts(bp,"\n");
+			}
+		BN_mul(d,a,c,ctx);
+		BN_sub(d,d,b);
+		if(!BN_is_zero(d))
+		    {
+		    BIO_puts(bp,"Left shift test failed!\n");
+		    BIO_puts(bp,"a=");
+		    BN_print(bp,a);
+		    BIO_puts(bp,"\nb=");
+		    BN_print(bp,b);
+		    BIO_puts(bp,"\nc=");
+		    BN_print(bp,c);
+		    BIO_puts(bp,"\nd=");
+		    BN_print(bp,d);
+		    BIO_puts(bp,"\n");
+		    return 0;
+		    }
+		}
+	BN_free(a);
+	BN_free(b);
+	BN_free(c);
+	BN_free(d);
+	return(1);
+	}
+
+int test_lshift1(BIO *bp)
+	{
+	BIGNUM *a,*b,*c;
+	int i;
+
+	a=BN_new();
+	b=BN_new();
+	c=BN_new();
+
+	BN_rand(a,200,0,0); /**/
+	a->neg=rand_neg();
+	for (i=0; i<70; i++)
+		{
+		BN_lshift1(b,a);
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,a);
+				BIO_puts(bp," * 2");
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,b);
+			BIO_puts(bp,"\n");
+			}
+		BN_add(c,a,a);
+		BN_sub(a,b,c);
+		if(!BN_is_zero(a))
+		    {
+		    BIO_puts(bp,"Left shift one test failed!\n");
+		    return 0;
+		    }
+		
+		BN_copy(a,b);
+		}
+	BN_free(a);
+	BN_free(b);
+	BN_free(c);
+	return(1);
+	}
+
+int test_rshift(BIO *bp,BN_CTX *ctx)
+	{
+	BIGNUM *a,*b,*c,*d,*e;
+	int i;
+
+	a=BN_new();
+	b=BN_new();
+	c=BN_new();
+	d=BN_new();
+	e=BN_new();
+	BN_one(c);
+
+	BN_rand(a,200,0,0); /**/
+	a->neg=rand_neg();
+	for (i=0; i<70; i++)
+		{
+		BN_rshift(b,a,i+1);
+		BN_add(c,c,c);
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,a);
+				BIO_puts(bp," / ");
+				BN_print(bp,c);
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,b);
+			BIO_puts(bp,"\n");
+			}
+		BN_div(d,e,a,c,ctx);
+		BN_sub(d,d,b);
+		if(!BN_is_zero(d))
+		    {
+		    BIO_puts(bp,"Right shift test failed!\n");
+		    return 0;
+		    }
+		}
+	BN_free(a);
+	BN_free(b);
+	BN_free(c);
+	BN_free(d);
+	BN_free(e);
+	return(1);
+	}
+
+int test_rshift1(BIO *bp)
+	{
+	BIGNUM *a,*b,*c;
+	int i;
+
+	a=BN_new();
+	b=BN_new();
+	c=BN_new();
+
+	BN_rand(a,200,0,0); /**/
+	a->neg=rand_neg();
+	for (i=0; i<70; i++)
+		{
+		BN_rshift1(b,a);
+		if (bp != NULL)
+			{
+			if (!results)
+				{
+				BN_print(bp,a);
+				BIO_puts(bp," / 2");
+				BIO_puts(bp," - ");
+				}
+			BN_print(bp,b);
+			BIO_puts(bp,"\n");
+			}
+		BN_sub(c,a,b);
+		BN_sub(c,c,b);
+		if(!BN_is_zero(c) && !BN_is_one(c))
+		    {
+		    BIO_puts(bp,"Right shift one test failed!\n");
+		    return 0;
+		    }
+		BN_copy(a,b);
+		}
+	BN_free(a);
+	BN_free(b);
+	BN_free(c);
+	return(1);
+	}
+
+int rand_neg(void)
+	{
+	static unsigned int neg=0;
+	static int sign[8]={0,0,0,1,1,0,1,1};
+
+	return(sign[(neg++)%8]);
+	}