Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/bn/bn_rand.c

Index: openssl/crypto/bn/bn_rand.c
diff --git a/openssl/crypto/bn/bn_rand.c b/openssl/crypto/bn/bn_rand.c
deleted file mode 100644
index b376c28ff3ff25b027922964af6ca26b4995250a..0000000000000000000000000000000000000000
--- a/openssl/crypto/bn/bn_rand.c
+++ /dev/null
@@ -1,305 +0,0 @@
-/* crypto/bn/bn_rand.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.]
- */
-/* ====================================================================
- * Copyright (c) 1998-2001 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.
- * ====================================================================
- *
- * 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 <time.h>
-#include "cryptlib.h"
-#include "bn_lcl.h"
-#include <openssl/rand.h>
-
-static int bnrand(int pseudorand, BIGNUM *rnd, int bits, int top, int bottom)
-	{
-	unsigned char *buf=NULL;
-	int ret=0,bit,bytes,mask;
-	time_t tim;
-
-	if (bits == 0)
-		{
-		BN_zero(rnd);
-		return 1;
-		}
-
-	bytes=(bits+7)/8;
-	bit=(bits-1)%8;
-	mask=0xff<<(bit+1);
-
-	buf=(unsigned char *)OPENSSL_malloc(bytes);
-	if (buf == NULL)
-		{
-		BNerr(BN_F_BNRAND,ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-
-	/* make a random number and set the top and bottom bits */
-	time(&tim);
-	RAND_add(&tim,sizeof(tim),0.0);
-
-	if (pseudorand)
-		{
-		if (RAND_pseudo_bytes(buf, bytes) == -1)
-			goto err;
-		}
-	else
-		{
-		if (RAND_bytes(buf, bytes) <= 0)
-			goto err;
-		}
-
-#if 1
-	if (pseudorand == 2)
-		{
-		/* generate patterns that are more likely to trigger BN
-		   library bugs */
-		int i;
-		unsigned char c;
-
-		for (i = 0; i < bytes; i++)
-			{
-			RAND_pseudo_bytes(&c, 1);
-			if (c >= 128 && i > 0)
-				buf[i] = buf[i-1];
-			else if (c < 42)
-				buf[i] = 0;
-			else if (c < 84)
-				buf[i] = 255;
-			}
-		}
-#endif
-
-	if (top != -1)
-		{
-		if (top)
-			{
-			if (bit == 0)
-				{
-				buf[0]=1;
-				buf[1]|=0x80;
-				}
-			else
-				{
-				buf[0]|=(3<<(bit-1));
-				}
-			}
-		else
-			{
-			buf[0]|=(1<<bit);
-			}
-		}
-	buf[0] &= ~mask;
-	if (bottom) /* set bottom bit if requested */
-		buf[bytes-1]|=1;
-	if (!BN_bin2bn(buf,bytes,rnd)) goto err;
-	ret=1;
-err:
-	if (buf != NULL)
-		{
-		OPENSSL_cleanse(buf,bytes);
-		OPENSSL_free(buf);
-		}
-	bn_check_top(rnd);
-	return(ret);
-	}
-
-int     BN_rand(BIGNUM *rnd, int bits, int top, int bottom)
-	{
-	return bnrand(0, rnd, bits, top, bottom);
-	}
-
-int     BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom)
-	{
-	return bnrand(1, rnd, bits, top, bottom);
-	}
-
-#if 1
-int     BN_bntest_rand(BIGNUM *rnd, int bits, int top, int bottom)
-	{
-	return bnrand(2, rnd, bits, top, bottom);
-	}
-#endif
-
-
-/* random number r:  0 <= r < range */
-static int bn_rand_range(int pseudo, BIGNUM *r, const BIGNUM *range)
-	{
-	int (*bn_rand)(BIGNUM *, int, int, int) = pseudo ? BN_pseudo_rand : BN_rand;
-	int n;
-	int count = 100;
-
-	if (range->neg || BN_is_zero(range))
-		{
-		BNerr(BN_F_BN_RAND_RANGE, BN_R_INVALID_RANGE);
-		return 0;
-		}
-
-	n = BN_num_bits(range); /* n > 0 */
-
-	/* BN_is_bit_set(range, n - 1) always holds */
-
-	if (n == 1)
-		BN_zero(r);
-	else if (!BN_is_bit_set(range, n - 2) && !BN_is_bit_set(range, n - 3))
-		{
-		/* range = 100..._2,
-		 * so  3*range (= 11..._2)  is exactly one bit longer than  range */
-		do
-			{
-			if (!bn_rand(r, n + 1, -1, 0)) return 0;
-			/* If  r < 3*range,  use  r := r MOD range
-			 * (which is either  r, r - range,  or  r - 2*range).
-			 * Otherwise, iterate once more.
-			 * Since  3*range = 11..._2, each iteration succeeds with
-			 * probability >= .75. */
-			if (BN_cmp(r ,range) >= 0)
-				{
-				if (!BN_sub(r, r, range)) return 0;
-				if (BN_cmp(r, range) >= 0)
-					if (!BN_sub(r, r, range)) return 0;
-				}
-
-			if (!--count)
-				{
-				BNerr(BN_F_BN_RAND_RANGE, BN_R_TOO_MANY_ITERATIONS);
-				return 0;
-				}
-			
-			}
-		while (BN_cmp(r, range) >= 0);
-		}
-	else
-		{
-		do
-			{
-			/* range = 11..._2  or  range = 101..._2 */
-			if (!bn_rand(r, n, -1, 0)) return 0;
-
-			if (!--count)
-				{
-				BNerr(BN_F_BN_RAND_RANGE, BN_R_TOO_MANY_ITERATIONS);
-				return 0;
-				}
-			}
-		while (BN_cmp(r, range) >= 0);
-		}
-
-	bn_check_top(r);
-	return 1;
-	}
-
-
-int	BN_rand_range(BIGNUM *r, const BIGNUM *range)
-	{
-	return bn_rand_range(0, r, range);
-	}
-
-int	BN_pseudo_rand_range(BIGNUM *r, const BIGNUM *range)
-	{
-	return bn_rand_range(1, r, range);
-	}