Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/bn/bn_blind.c

Index: openssl/crypto/bn/bn_blind.c
diff --git a/openssl/crypto/bn/bn_blind.c b/openssl/crypto/bn/bn_blind.c
deleted file mode 100644
index 9ed8bc2b40b81661b863546d005e9f7a515360f0..0000000000000000000000000000000000000000
--- a/openssl/crypto/bn/bn_blind.c
+++ /dev/null
@@ -1,385 +0,0 @@
-/* crypto/bn/bn_blind.c */
-/* ====================================================================
- * Copyright (c) 1998-2006 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).
- *
- */
-/* 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 "cryptlib.h"
-#include "bn_lcl.h"
-
-#define BN_BLINDING_COUNTER	32
-
-struct bn_blinding_st
-	{
-	BIGNUM *A;
-	BIGNUM *Ai;
-	BIGNUM *e;
-	BIGNUM *mod; /* just a reference */
-#ifndef OPENSSL_NO_DEPRECATED
-	unsigned long thread_id; /* added in OpenSSL 0.9.6j and 0.9.7b;
-				  * used only by crypto/rsa/rsa_eay.c, rsa_lib.c */
-#endif
-	CRYPTO_THREADID tid;
-	int counter;
-	unsigned long flags;
-	BN_MONT_CTX *m_ctx;
-	int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
-			  const BIGNUM *m, BN_CTX *ctx,
-			  BN_MONT_CTX *m_ctx);
-	};
-
-BN_BLINDING *BN_BLINDING_new(const BIGNUM *A, const BIGNUM *Ai, BIGNUM *mod)
-	{
-	BN_BLINDING *ret=NULL;
-
-	bn_check_top(mod);
-
-	if ((ret=(BN_BLINDING *)OPENSSL_malloc(sizeof(BN_BLINDING))) == NULL)
-		{
-		BNerr(BN_F_BN_BLINDING_NEW,ERR_R_MALLOC_FAILURE);
-		return(NULL);
-		}
-	memset(ret,0,sizeof(BN_BLINDING));
-	if (A != NULL)
-		{
-		if ((ret->A  = BN_dup(A))  == NULL) goto err;
-		}
-	if (Ai != NULL)
-		{
-		if ((ret->Ai = BN_dup(Ai)) == NULL) goto err;
-		}
-
-	/* save a copy of mod in the BN_BLINDING structure */
-	if ((ret->mod = BN_dup(mod)) == NULL) goto err;
-	if (BN_get_flags(mod, BN_FLG_CONSTTIME) != 0)
-		BN_set_flags(ret->mod, BN_FLG_CONSTTIME);
-
-	/* Set the counter to the special value -1
-	 * to indicate that this is never-used fresh blinding
-	 * that does not need updating before first use. */
-	ret->counter = -1;
-	CRYPTO_THREADID_current(&ret->tid);
-	return(ret);
-err:
-	if (ret != NULL) BN_BLINDING_free(ret);
-	return(NULL);
-	}
-
-void BN_BLINDING_free(BN_BLINDING *r)
-	{
-	if(r == NULL)
-	    return;
-
-	if (r->A  != NULL) BN_free(r->A );
-	if (r->Ai != NULL) BN_free(r->Ai);
-	if (r->e  != NULL) BN_free(r->e );
-	if (r->mod != NULL) BN_free(r->mod); 
-	OPENSSL_free(r);
-	}
-
-int BN_BLINDING_update(BN_BLINDING *b, BN_CTX *ctx)
-	{
-	int ret=0;
-
-	if ((b->A == NULL) || (b->Ai == NULL))
-		{
-		BNerr(BN_F_BN_BLINDING_UPDATE,BN_R_NOT_INITIALIZED);
-		goto err;
-		}
-
-	if (b->counter == -1)
-		b->counter = 0;
-
-	if (++b->counter == BN_BLINDING_COUNTER && b->e != NULL &&
-		!(b->flags & BN_BLINDING_NO_RECREATE))
-		{
-		/* re-create blinding parameters */
-		if (!BN_BLINDING_create_param(b, NULL, NULL, ctx, NULL, NULL))
-			goto err;
-		}
-	else if (!(b->flags & BN_BLINDING_NO_UPDATE))
-		{
-		if (!BN_mod_mul(b->A,b->A,b->A,b->mod,ctx)) goto err;
-		if (!BN_mod_mul(b->Ai,b->Ai,b->Ai,b->mod,ctx)) goto err;
-		}
-
-	ret=1;
-err:
-	if (b->counter == BN_BLINDING_COUNTER)
-		b->counter = 0;
-	return(ret);
-	}
-
-int BN_BLINDING_convert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx)
-	{
-	return BN_BLINDING_convert_ex(n, NULL, b, ctx);
-	}
-
-int BN_BLINDING_convert_ex(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *ctx)
-	{
-	int ret = 1;
-
-	bn_check_top(n);
-
-	if ((b->A == NULL) || (b->Ai == NULL))
-		{
-		BNerr(BN_F_BN_BLINDING_CONVERT_EX,BN_R_NOT_INITIALIZED);
-		return(0);
-		}
-
-	if (b->counter == -1)
-		/* Fresh blinding, doesn't need updating. */
-		b->counter = 0;
-	else if (!BN_BLINDING_update(b,ctx))
-		return(0);
-
-	if (r != NULL)
-		{
-		if (!BN_copy(r, b->Ai)) ret=0;
-		}
-
-	if (!BN_mod_mul(n,n,b->A,b->mod,ctx)) ret=0;
-	
-	return ret;
-	}
-
-int BN_BLINDING_invert(BIGNUM *n, BN_BLINDING *b, BN_CTX *ctx)
-	{
-	return BN_BLINDING_invert_ex(n, NULL, b, ctx);
-	}
-
-int BN_BLINDING_invert_ex(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b, BN_CTX *ctx)
-	{
-	int ret;
-
-	bn_check_top(n);
-
-	if (r != NULL)
-		ret = BN_mod_mul(n, n, r, b->mod, ctx);
-	else
-		{
-		if (b->Ai == NULL)
-			{
-			BNerr(BN_F_BN_BLINDING_INVERT_EX,BN_R_NOT_INITIALIZED);
-			return(0);
-			}
-		ret = BN_mod_mul(n, n, b->Ai, b->mod, ctx);
-		}
-
-	bn_check_top(n);
-	return(ret);
-	}
-
-#ifndef OPENSSL_NO_DEPRECATED
-unsigned long BN_BLINDING_get_thread_id(const BN_BLINDING *b)
-	{
-	return b->thread_id;
-	}
-
-void BN_BLINDING_set_thread_id(BN_BLINDING *b, unsigned long n)
-	{
-	b->thread_id = n;
-	}
-#endif
-
-CRYPTO_THREADID *BN_BLINDING_thread_id(BN_BLINDING *b)
-	{
-	return &b->tid;
-	}
-
-unsigned long BN_BLINDING_get_flags(const BN_BLINDING *b)
-	{
-	return b->flags;
-	}
-
-void BN_BLINDING_set_flags(BN_BLINDING *b, unsigned long flags)
-	{
-	b->flags = flags;
-	}
-
-BN_BLINDING *BN_BLINDING_create_param(BN_BLINDING *b,
-	const BIGNUM *e, BIGNUM *m, BN_CTX *ctx,
-	int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
-			  const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx),
-	BN_MONT_CTX *m_ctx)
-{
-	int    retry_counter = 32;
-	BN_BLINDING *ret = NULL;
-
-	if (b == NULL)
-		ret = BN_BLINDING_new(NULL, NULL, m);
-	else
-		ret = b;
-
-	if (ret == NULL)
-		goto err;
-
-	if (ret->A  == NULL && (ret->A  = BN_new()) == NULL)
-		goto err;
-	if (ret->Ai == NULL && (ret->Ai	= BN_new()) == NULL)
-		goto err;
-
-	if (e != NULL)
-		{
-		if (ret->e != NULL)
-			BN_free(ret->e);
-		ret->e = BN_dup(e);
-		}
-	if (ret->e == NULL)
-		goto err;
-
-	if (bn_mod_exp != NULL)
-		ret->bn_mod_exp = bn_mod_exp;
-	if (m_ctx != NULL)
-		ret->m_ctx = m_ctx;
-
-	do {
-		if (!BN_rand_range(ret->A, ret->mod)) goto err;
-		if (BN_mod_inverse(ret->Ai, ret->A, ret->mod, ctx) == NULL)
-			{
-			/* this should almost never happen for good RSA keys */
-			unsigned long error = ERR_peek_last_error();
-			if (ERR_GET_REASON(error) == BN_R_NO_INVERSE)
-				{
-				if (retry_counter-- == 0)
-				{
-					BNerr(BN_F_BN_BLINDING_CREATE_PARAM,
-						BN_R_TOO_MANY_ITERATIONS);
-					goto err;
-				}
-				ERR_clear_error();
-				}
-			else
-				goto err;
-			}
-		else
-			break;
-	} while (1);
-
-	if (ret->bn_mod_exp != NULL && ret->m_ctx != NULL)
-		{
-		if (!ret->bn_mod_exp(ret->A, ret->A, ret->e, ret->mod, ctx, ret->m_ctx))
-			goto err;
-		}
-	else
-		{
-		if (!BN_mod_exp(ret->A, ret->A, ret->e, ret->mod, ctx))
-			goto err;
-		}
-
-	return ret;
-err:
-	if (b == NULL && ret != NULL)
-		{
-		BN_BLINDING_free(ret);
-		ret = NULL;
-		}
-
-	return ret;
-}