--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ssl/libcrypto/src/crypto/evp/p_lib.c	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,502 @@
+/* crypto/evp/p_lib.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 "cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/err.h>
+#include <openssl/objects.h>
+#include <openssl/evp.h>
+#include <openssl/asn1_mac.h>
+#include <openssl/x509.h>
+#ifndef OPENSSL_NO_RSA
+#include <openssl/rsa.h>
+#endif
+#ifndef OPENSSL_NO_DSA
+#include <openssl/dsa.h>
+#endif
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
+#endif
+
+static void EVP_PKEY_free_it(EVP_PKEY *x);
+
+EXPORT_C int EVP_PKEY_bits(EVP_PKEY *pkey)
+	{
+	if (0)
+		return 0;
+#ifndef OPENSSL_NO_RSA
+	else if (pkey->type == EVP_PKEY_RSA)
+		return(BN_num_bits(pkey->pkey.rsa->n));
+#endif
+#ifndef OPENSSL_NO_DSA
+	else if (pkey->type == EVP_PKEY_DSA)
+		return(BN_num_bits(pkey->pkey.dsa->p));
+#endif
+#ifndef OPENSSL_NO_EC
+	else if (pkey->type == EVP_PKEY_EC)
+		{
+		BIGNUM *order = BN_new();
+		const EC_GROUP *group;
+		int ret;
+
+		if (!order)
+			{
+			ERR_clear_error();
+			return 0;
+			}
+		group = EC_KEY_get0_group(pkey->pkey.ec);
+		if (!EC_GROUP_get_order(group, order, NULL))
+			{
+			ERR_clear_error();
+			return 0;
+			}
+
+		ret = BN_num_bits(order);
+		BN_free(order);
+		return ret;
+		}
+#endif
+	return(0);
+	}
+
+EXPORT_C int EVP_PKEY_size(EVP_PKEY *pkey)
+	{
+	if (pkey == NULL)
+		return(0);
+#ifndef OPENSSL_NO_RSA
+	if (pkey->type == EVP_PKEY_RSA)
+		return(RSA_size(pkey->pkey.rsa));
+	else
+#endif
+#ifndef OPENSSL_NO_DSA
+		if (pkey->type == EVP_PKEY_DSA)
+		return(DSA_size(pkey->pkey.dsa));
+#endif
+#ifndef OPENSSL_NO_ECDSA
+		if (pkey->type == EVP_PKEY_EC)
+		return(ECDSA_size(pkey->pkey.ec));
+#endif
+
+	return(0);
+	}
+
+EXPORT_C int EVP_PKEY_save_parameters(EVP_PKEY *pkey, int mode)
+	{
+#ifndef OPENSSL_NO_DSA
+	if (pkey->type == EVP_PKEY_DSA)
+		{
+		int ret=pkey->save_parameters;
+
+		if (mode >= 0)
+			pkey->save_parameters=mode;
+		return(ret);
+		}
+#endif
+#ifndef OPENSSL_NO_EC
+	if (pkey->type == EVP_PKEY_EC)
+		{
+		int ret = pkey->save_parameters;
+
+		if (mode >= 0)
+			pkey->save_parameters = mode;
+		return(ret);
+		}
+#endif
+	return(0);
+	}
+
+EXPORT_C int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
+	{
+	if (to->type != from->type)
+		{
+		EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES);
+		goto err;
+		}
+
+	if (EVP_PKEY_missing_parameters(from))
+		{
+		EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARAMETERS);
+		goto err;
+		}
+#ifndef OPENSSL_NO_DSA
+	if (to->type == EVP_PKEY_DSA)
+		{
+		BIGNUM *a;
+
+		if ((a=BN_dup(from->pkey.dsa->p)) == NULL) goto err;
+		if (to->pkey.dsa->p != NULL) BN_free(to->pkey.dsa->p);
+		to->pkey.dsa->p=a;
+
+		if ((a=BN_dup(from->pkey.dsa->q)) == NULL) goto err;
+		if (to->pkey.dsa->q != NULL) BN_free(to->pkey.dsa->q);
+		to->pkey.dsa->q=a;
+
+		if ((a=BN_dup(from->pkey.dsa->g)) == NULL) goto err;
+		if (to->pkey.dsa->g != NULL) BN_free(to->pkey.dsa->g);
+		to->pkey.dsa->g=a;
+		}
+#endif
+#ifndef OPENSSL_NO_EC
+	if (to->type == EVP_PKEY_EC)
+		{
+		EC_GROUP *group = EC_GROUP_dup(EC_KEY_get0_group(from->pkey.ec));
+		if (group == NULL)
+			goto err;
+		if (EC_KEY_set_group(to->pkey.ec, group) == 0)
+			goto err;
+		EC_GROUP_free(group);
+		}
+#endif
+	return(1);
+err:
+	return(0);
+	}
+
+EXPORT_C int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey)
+	{
+#ifndef OPENSSL_NO_DSA
+	if (pkey->type == EVP_PKEY_DSA)
+		{
+		DSA *dsa;
+
+		dsa=pkey->pkey.dsa;
+		if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))
+			return(1);
+		}
+#endif
+#ifndef OPENSSL_NO_EC
+	if (pkey->type == EVP_PKEY_EC)
+		{
+		if (EC_KEY_get0_group(pkey->pkey.ec) == NULL)
+			return(1);
+		}
+#endif
+
+	return(0);
+	}
+
+EXPORT_C int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
+	{
+#ifndef OPENSSL_NO_DSA
+	if ((a->type == EVP_PKEY_DSA) && (b->type == EVP_PKEY_DSA))
+		{
+		if (	BN_cmp(a->pkey.dsa->p,b->pkey.dsa->p) ||
+			BN_cmp(a->pkey.dsa->q,b->pkey.dsa->q) ||
+			BN_cmp(a->pkey.dsa->g,b->pkey.dsa->g))
+			return(0);
+		else
+			return(1);
+		}
+#endif
+#ifndef OPENSSL_NO_EC
+	if (a->type == EVP_PKEY_EC && b->type == EVP_PKEY_EC)
+		{
+		const EC_GROUP *group_a = EC_KEY_get0_group(a->pkey.ec),
+		               *group_b = EC_KEY_get0_group(b->pkey.ec);
+		if (EC_GROUP_cmp(group_a, group_b, NULL))
+			return 0;
+		else
+			return 1;
+		}
+#endif
+	return(-1);
+	}
+
+EXPORT_C int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
+	{
+	if (a->type != b->type)
+		return -1;
+
+	if (EVP_PKEY_cmp_parameters(a, b) == 0)
+		return 0;
+
+	switch (a->type)
+		{
+#ifndef OPENSSL_NO_RSA
+	case EVP_PKEY_RSA:
+		if (BN_cmp(b->pkey.rsa->n,a->pkey.rsa->n) != 0
+			|| BN_cmp(b->pkey.rsa->e,a->pkey.rsa->e) != 0)
+			return 0;
+		break;
+#endif
+#ifndef OPENSSL_NO_DSA
+	case EVP_PKEY_DSA:
+		if (BN_cmp(b->pkey.dsa->pub_key,a->pkey.dsa->pub_key) != 0)
+			return 0;
+		break;
+#endif
+#ifndef OPENSSL_NO_EC
+	case EVP_PKEY_EC:
+		{
+		int  r;
+		const EC_GROUP *group = EC_KEY_get0_group(b->pkey.ec);
+		const EC_POINT *pa = EC_KEY_get0_public_key(a->pkey.ec),
+		               *pb = EC_KEY_get0_public_key(b->pkey.ec);
+		r = EC_POINT_cmp(group, pa, pb, NULL);
+		if (r != 0)
+			{
+			if (r == 1)
+				return 0;
+			else
+				return -2;
+			}
+		}
+ 		break;
+#endif
+#ifndef OPENSSL_NO_DH
+	case EVP_PKEY_DH:
+		return -2;
+#endif
+	default:
+		return -2;
+		}
+
+	return 1;
+	}
+
+EXPORT_C EVP_PKEY *EVP_PKEY_new(void)
+	{
+	EVP_PKEY *ret;
+
+	ret=(EVP_PKEY *)OPENSSL_malloc(sizeof(EVP_PKEY));
+	if (ret == NULL)
+		{
+		EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE);
+		return(NULL);
+		}
+	ret->type=EVP_PKEY_NONE;
+	ret->references=1;
+	ret->pkey.ptr=NULL;
+	ret->attributes=NULL;
+	ret->save_parameters=1;
+	return(ret);
+	}
+
+EXPORT_C int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key)
+	{
+	if (pkey == NULL) return(0);
+	if (pkey->pkey.ptr != NULL)
+		EVP_PKEY_free_it(pkey);
+	pkey->type=EVP_PKEY_type(type);
+	pkey->save_type=type;
+	pkey->pkey.ptr=key;
+	return(key != NULL);
+	}
+
+#ifndef OPENSSL_NO_RSA
+EXPORT_C int EVP_PKEY_set1_RSA(EVP_PKEY *pkey, RSA *key)
+{
+	int ret = EVP_PKEY_assign_RSA(pkey, key);
+	if(ret)
+		RSA_up_ref(key);
+	return ret;
+}
+
+EXPORT_C RSA *EVP_PKEY_get1_RSA(EVP_PKEY *pkey)
+	{
+	if(pkey->type != EVP_PKEY_RSA) {
+		EVPerr(EVP_F_EVP_PKEY_GET1_RSA, EVP_R_EXPECTING_AN_RSA_KEY);
+		return NULL;
+	}
+	RSA_up_ref(pkey->pkey.rsa);
+	return pkey->pkey.rsa;
+}
+#endif
+
+#ifndef OPENSSL_NO_DSA
+EXPORT_C int EVP_PKEY_set1_DSA(EVP_PKEY *pkey, DSA *key)
+{
+	int ret = EVP_PKEY_assign_DSA(pkey, key);
+	if(ret)
+		DSA_up_ref(key);
+	return ret;
+}
+
+EXPORT_C DSA *EVP_PKEY_get1_DSA(EVP_PKEY *pkey)
+	{
+	if(pkey->type != EVP_PKEY_DSA) {
+		EVPerr(EVP_F_EVP_PKEY_GET1_DSA, EVP_R_EXPECTING_A_DSA_KEY);
+		return NULL;
+	}
+	DSA_up_ref(pkey->pkey.dsa);
+	return pkey->pkey.dsa;
+}
+#endif
+
+#ifndef OPENSSL_NO_EC
+
+EXPORT_C int EVP_PKEY_set1_EC_KEY(EVP_PKEY *pkey, EC_KEY *key)
+{
+	int ret = EVP_PKEY_assign_EC_KEY(pkey,key);
+	if (ret)
+		EC_KEY_up_ref(key);
+	return ret;
+}
+
+EXPORT_C EC_KEY *EVP_PKEY_get1_EC_KEY(EVP_PKEY *pkey)
+{
+	if (pkey->type != EVP_PKEY_EC)
+	{
+		EVPerr(EVP_F_EVP_PKEY_GET1_EC_KEY, EVP_R_EXPECTING_A_EC_KEY);
+		return NULL;
+	}
+	EC_KEY_up_ref(pkey->pkey.ec);
+	return pkey->pkey.ec;
+}
+#endif
+
+
+#ifndef OPENSSL_NO_DH
+
+EXPORT_C int EVP_PKEY_set1_DH(EVP_PKEY *pkey, DH *key)
+{
+	int ret = EVP_PKEY_assign_DH(pkey, key);
+	if(ret)
+		DH_up_ref(key);
+	return ret;
+}
+
+EXPORT_C DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
+	{
+	if(pkey->type != EVP_PKEY_DH) {
+		EVPerr(EVP_F_EVP_PKEY_GET1_DH, EVP_R_EXPECTING_A_DH_KEY);
+		return NULL;
+	}
+	DH_up_ref(pkey->pkey.dh);
+	return pkey->pkey.dh;
+}
+#endif
+
+EXPORT_C int EVP_PKEY_type(int type)
+	{
+	switch (type)
+		{
+	case EVP_PKEY_RSA:
+	case EVP_PKEY_RSA2:
+		return(EVP_PKEY_RSA);
+	case EVP_PKEY_DSA:
+	case EVP_PKEY_DSA1:
+	case EVP_PKEY_DSA2:
+	case EVP_PKEY_DSA3:
+	case EVP_PKEY_DSA4:
+		return(EVP_PKEY_DSA);
+	case EVP_PKEY_DH:
+		return(EVP_PKEY_DH);
+	case EVP_PKEY_EC:
+		return(EVP_PKEY_EC);
+	default:
+		return(NID_undef);
+		}
+	}
+
+EXPORT_C void EVP_PKEY_free(EVP_PKEY *x)
+	{
+	int i;
+
+	if (x == NULL) return;
+
+	i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY);
+#ifdef REF_PRINT
+	REF_PRINT("EVP_PKEY",x);
+#endif
+	if (i > 0) return;
+#ifdef REF_CHECK
+	if (i < 0)
+		{
+		fprintf(stderr,"EVP_PKEY_free, bad reference count\n");
+		abort();
+		}
+#endif
+	EVP_PKEY_free_it(x);
+	if (x->attributes)
+		sk_X509_ATTRIBUTE_pop_free(x->attributes, X509_ATTRIBUTE_free);
+	OPENSSL_free(x);
+	}
+
+static void EVP_PKEY_free_it(EVP_PKEY *x)
+	{
+	switch (x->type)
+		{
+#ifndef OPENSSL_NO_RSA
+	case EVP_PKEY_RSA:
+	case EVP_PKEY_RSA2:
+		RSA_free(x->pkey.rsa);
+		break;
+#endif
+#ifndef OPENSSL_NO_DSA
+	case EVP_PKEY_DSA:
+	case EVP_PKEY_DSA2:
+	case EVP_PKEY_DSA3:
+	case EVP_PKEY_DSA4:
+		DSA_free(x->pkey.dsa);
+		break;
+#endif
+#ifndef OPENSSL_NO_EC
+	case EVP_PKEY_EC:
+		EC_KEY_free(x->pkey.ec);
+		break;
+#endif
+#ifndef OPENSSL_NO_DH
+	case EVP_PKEY_DH:
+		DH_free(x->pkey.dh);
+		break;
+#endif
+		}
+	}
+