Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/bn/bn_kron.c

Index: openssl/crypto/bn/bn_kron.c
diff --git a/openssl/crypto/bn/bn_kron.c b/openssl/crypto/bn/bn_kron.c
deleted file mode 100644
index 740359b7520de3609e825801d96a5f41df81ea98..0000000000000000000000000000000000000000
--- a/openssl/crypto/bn/bn_kron.c
+++ /dev/null
@@ -1,184 +0,0 @@
-/* crypto/bn/bn_kron.c */
-/* ====================================================================
- * Copyright (c) 1998-2000 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 "cryptlib.h"
-#include "bn_lcl.h"
-
-/* least significant word */
-#define BN_lsw(n) (((n)->top == 0) ? (BN_ULONG) 0 : (n)->d[0])
-
-/* Returns -2 for errors because both -1 and 0 are valid results. */
-int BN_kronecker(const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
-	{
-	int i;
-	int ret = -2; /* avoid 'uninitialized' warning */
-	int err = 0;
-	BIGNUM *A, *B, *tmp;
-	/* In 'tab', only odd-indexed entries are relevant:
-	 * For any odd BIGNUM n,
-	 *     tab[BN_lsw(n) & 7]
-	 * is $(-1)^{(n^2-1)/8}$ (using TeX notation).
-	 * Note that the sign of n does not matter.
-	 */
-	static const int tab[8] = {0, 1, 0, -1, 0, -1, 0, 1};
-
-	bn_check_top(a);
-	bn_check_top(b);
-
-	BN_CTX_start(ctx);
-	A = BN_CTX_get(ctx);
-	B = BN_CTX_get(ctx);
-	if (B == NULL) goto end;
-	
-	err = !BN_copy(A, a);
-	if (err) goto end;
-	err = !BN_copy(B, b);
-	if (err) goto end;
-
-	/*
-	 * Kronecker symbol, imlemented according to Henri Cohen,
-	 * "A Course in Computational Algebraic Number Theory"
-	 * (algorithm 1.4.10).
-	 */
-
-	/* Cohen's step 1: */
-
-	if (BN_is_zero(B))
-		{
-		ret = BN_abs_is_word(A, 1);
-		goto end;
- 		}
-	
-	/* Cohen's step 2: */
-
-	if (!BN_is_odd(A) && !BN_is_odd(B))
-		{
-		ret = 0;
-		goto end;
-		}
-
-	/* now  B  is non-zero */
-	i = 0;
-	while (!BN_is_bit_set(B, i))
-		i++;
-	err = !BN_rshift(B, B, i);
-	if (err) goto end;
-	if (i & 1)
-		{
-		/* i is odd */
-		/* (thus  B  was even, thus  A  must be odd!)  */
-
-		/* set 'ret' to $(-1)^{(A^2-1)/8}$ */
-		ret = tab[BN_lsw(A) & 7];
-		}
-	else
-		{
-		/* i is even */
-		ret = 1;
-		}
-	
-	if (B->neg)
-		{
-		B->neg = 0;
-		if (A->neg)
-			ret = -ret;
-		}
-
-	/* now  B  is positive and odd, so what remains to be done is
-	 * to compute the Jacobi symbol  (A/B)  and multiply it by 'ret' */
-
-	while (1)
-		{
-		/* Cohen's step 3: */
-
-		/*  B  is positive and odd */
-
-		if (BN_is_zero(A))
-			{
-			ret = BN_is_one(B) ? ret : 0;
-			goto end;
-			}
-
-		/* now  A  is non-zero */
-		i = 0;
-		while (!BN_is_bit_set(A, i))
-			i++;
-		err = !BN_rshift(A, A, i);
-		if (err) goto end;
-		if (i & 1)
-			{
-			/* i is odd */
-			/* multiply 'ret' by  $(-1)^{(B^2-1)/8}$ */
-			ret = ret * tab[BN_lsw(B) & 7];
-			}
-	
-		/* Cohen's step 4: */
-		/* multiply 'ret' by  $(-1)^{(A-1)(B-1)/4}$ */
-		if ((A->neg ? ~BN_lsw(A) : BN_lsw(A)) & BN_lsw(B) & 2)
-			ret = -ret;
-		
-		/* (A, B) := (B mod |A|, |A|) */
-		err = !BN_nnmod(B, B, A, ctx);
-		if (err) goto end;
-		tmp = A; A = B; B = tmp;
-		tmp->neg = 0;
-		}
-end:
-	BN_CTX_end(ctx);
-	if (err)
-		return -2;
-	else
-		return ret;
-	}