Synchronised line endinge with release branch

1 files changed, 1824 insertions, 1824 deletions

diff --git a/openssl/engines/e_capi.c b/openssl/engines/e_capi.c
index 5c1fbeff3..24b620fc0 100644
--- a/openssl/engines/e_capi.c
+++ b/openssl/engines/e_capi.c
@@ -1,1824 +1,1824 @@
-/* engines/e_capi.c */

-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL

- * project.

- */

-/* ====================================================================

- * Copyright (c) 2008 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

- *    licensing@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.

- * ====================================================================

- */

-

-

-#include <stdio.h>

-#include <string.h>

-#include <openssl/crypto.h>

-#include <openssl/buffer.h>

-#include <openssl/bn.h>

-

-#ifdef OPENSSL_SYS_WIN32

-#ifndef OPENSSL_NO_CAPIENG

-

-#include <openssl/rsa.h>

-

-#include <windows.h>

-

-#ifndef _WIN32_WINNT

-#define _WIN32_WINNT 0x0400

-#endif

-

-#include <wincrypt.h>

-

-/*

- * This module uses several "new" interfaces, among which is

- * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is

- * one of possible values you can pass to function in question. By

- * checking if it's defined we can see if wincrypt.h and accompanying

- * crypt32.lib are in shape. The native MingW32 headers up to and

- * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the

- * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,

- * so we check for these too and avoid compiling.

- * Yes, it's rather "weak" test and if compilation fails,

- * then re-configure with -DOPENSSL_NO_CAPIENG.

- */

-#if defined(CERT_KEY_PROV_INFO_PROP_ID) && \

-    defined(CERT_STORE_PROV_SYSTEM_A) && \

-    defined(CERT_STORE_READONLY_FLAG)

-# define __COMPILE_CAPIENG

-#endif /* CERT_KEY_PROV_INFO_PROP_ID */

-#endif /* OPENSSL_NO_CAPIENG */

-#endif /* OPENSSL_SYS_WIN32 */

-

-#ifdef __COMPILE_CAPIENG

-

-#undef X509_EXTENSIONS

-#undef X509_CERT_PAIR

-

-/* Definitions which may be missing from earlier version of headers */

-#ifndef CERT_STORE_OPEN_EXISTING_FLAG

-#define CERT_STORE_OPEN_EXISTING_FLAG                   0x00004000

-#endif

-

-#ifndef CERT_STORE_CREATE_NEW_FLAG

-#define CERT_STORE_CREATE_NEW_FLAG                      0x00002000

-#endif

-

-#ifndef CERT_SYSTEM_STORE_CURRENT_USER

-#define CERT_SYSTEM_STORE_CURRENT_USER			0x00010000

-#endif 

-

-#include <openssl/engine.h>

-#include <openssl/pem.h>

-#include <openssl/x509v3.h>

-

-#include "e_capi_err.h"

-#include "e_capi_err.c"

-

-

-static const char *engine_capi_id = "capi";

-static const char *engine_capi_name = "CryptoAPI ENGINE";

-

-typedef struct CAPI_CTX_st CAPI_CTX;

-typedef struct CAPI_KEY_st CAPI_KEY;

-

-static void capi_addlasterror(void);

-static void capi_adderror(DWORD err);

-

-static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);

-

-static int capi_list_providers(CAPI_CTX *ctx, BIO *out);

-static int capi_list_containers(CAPI_CTX *ctx, BIO *out);

-int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);

-void capi_free_key(CAPI_KEY *key);

-

-static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore);

-

-CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);

-

-static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,

-	UI_METHOD *ui_method, void *callback_data);

-static int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,

-             unsigned char *sigret, unsigned int *siglen, const RSA *rsa);

-static int capi_rsa_priv_enc(int flen, const unsigned char *from,

-                unsigned char *to, RSA *rsa, int padding);

-static int capi_rsa_priv_dec(int flen, const unsigned char *from,

-                unsigned char *to, RSA *rsa, int padding);

-static int capi_rsa_free(RSA *rsa);

-

-static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,

-							DSA *dsa);

-static int capi_dsa_free(DSA *dsa);

-

-static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,

-	STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,

-	STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);

-

-static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);

-#ifdef OPENSSL_CAPIENG_DIALOG

-static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);

-#endif

-

-typedef PCCERT_CONTEXT (WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,

-						LPCWSTR, DWORD, DWORD,

-						void *);

-typedef HWND (WINAPI *GETCONSWIN)(void);

-

-/* This structure contains CAPI ENGINE specific data:

- * it contains various global options and affects how

- * other functions behave.

- */

-

-#define CAPI_DBG_TRACE	2

-#define CAPI_DBG_ERROR	1

-

-struct CAPI_CTX_st {

-	int debug_level;

-	char *debug_file;

-	/* Parameters to use for container lookup */

-	DWORD keytype;

-	LPSTR cspname;

-	DWORD csptype;

-	/* Certificate store name to use */

-	LPSTR storename;

-	LPSTR ssl_client_store;

-	/* System store flags */

-	DWORD store_flags;

-

-/* Lookup string meanings in load_private_key */

-/* Substring of subject: uses "storename" */

-#define CAPI_LU_SUBSTR		1

-/* Friendly name: uses storename */

-#define CAPI_LU_FNAME		2

-/* Container name: uses cspname, keytype */

-#define CAPI_LU_CONTNAME	3

-	int lookup_method;

-/* Info to dump with dumpcerts option */

-/* Issuer and serial name strings */

-#define CAPI_DMP_SUMMARY	0x1

-/* Friendly name */

-#define CAPI_DMP_FNAME		0x2

-/* Full X509_print dump */

-#define CAPI_DMP_FULL		0x4

-/* Dump PEM format certificate */

-#define CAPI_DMP_PEM		0x8

-/* Dump pseudo key (if possible) */

-#define CAPI_DMP_PSKEY		0x10

-/* Dump key info (if possible) */

-#define CAPI_DMP_PKEYINFO	0x20

-

-	DWORD dump_flags;

-	int (*client_cert_select)(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);

-

-	CERTDLG certselectdlg;

-	GETCONSWIN getconswindow;

-};

-

-

-static CAPI_CTX *capi_ctx_new();

-static void capi_ctx_free(CAPI_CTX *ctx);

-static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check);

-static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);

-

-#define CAPI_CMD_LIST_CERTS		ENGINE_CMD_BASE

-#define CAPI_CMD_LOOKUP_CERT		(ENGINE_CMD_BASE + 1)

-#define CAPI_CMD_DEBUG_LEVEL		(ENGINE_CMD_BASE + 2)

-#define CAPI_CMD_DEBUG_FILE		(ENGINE_CMD_BASE + 3)

-#define CAPI_CMD_KEYTYPE		(ENGINE_CMD_BASE + 4)

-#define CAPI_CMD_LIST_CSPS		(ENGINE_CMD_BASE + 5)

-#define CAPI_CMD_SET_CSP_IDX		(ENGINE_CMD_BASE + 6)

-#define CAPI_CMD_SET_CSP_NAME		(ENGINE_CMD_BASE + 7)

-#define CAPI_CMD_SET_CSP_TYPE		(ENGINE_CMD_BASE + 8)

-#define CAPI_CMD_LIST_CONTAINERS	(ENGINE_CMD_BASE + 9)

-#define CAPI_CMD_LIST_OPTIONS		(ENGINE_CMD_BASE + 10)

-#define CAPI_CMD_LOOKUP_METHOD		(ENGINE_CMD_BASE + 11)

-#define CAPI_CMD_STORE_NAME		(ENGINE_CMD_BASE + 12)

-#define CAPI_CMD_STORE_FLAGS		(ENGINE_CMD_BASE + 13)

-

-static const ENGINE_CMD_DEFN capi_cmd_defns[] = {

-	{CAPI_CMD_LIST_CERTS,

-		"list_certs",

-		"List all certificates in store",

-		ENGINE_CMD_FLAG_NO_INPUT},

-	{CAPI_CMD_LOOKUP_CERT,

-		"lookup_cert",

-		"Lookup and output certificates",

-		ENGINE_CMD_FLAG_STRING},

-	{CAPI_CMD_DEBUG_LEVEL,

-		"debug_level",

-		"debug level (1=errors, 2=trace)",

-		ENGINE_CMD_FLAG_NUMERIC},

-	{CAPI_CMD_DEBUG_FILE,

-		"debug_file",

-		"debugging filename)",

-		ENGINE_CMD_FLAG_STRING},

-	{CAPI_CMD_KEYTYPE,

-		"key_type",

-		"Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",

-		ENGINE_CMD_FLAG_NUMERIC},

-	{CAPI_CMD_LIST_CSPS,

-		"list_csps",

-		"List all CSPs",

-		ENGINE_CMD_FLAG_NO_INPUT},

-	{CAPI_CMD_SET_CSP_IDX,

-		"csp_idx",

-		"Set CSP by index",

-		ENGINE_CMD_FLAG_NUMERIC},

-	{CAPI_CMD_SET_CSP_NAME,

-		"csp_name",

-		"Set CSP name, (default CSP used if not specified)",

-		ENGINE_CMD_FLAG_STRING},

-	{CAPI_CMD_SET_CSP_TYPE,

-		"csp_type",

-		"Set CSP type, (default RSA_PROV_FULL)",

-		ENGINE_CMD_FLAG_NUMERIC},

-	{CAPI_CMD_LIST_CONTAINERS,

-		"list_containers",

-		"list container names",

-		ENGINE_CMD_FLAG_NO_INPUT},

-	{CAPI_CMD_LIST_OPTIONS,

-		"list_options",

-		"Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "

-		"32=private key info)",

-		ENGINE_CMD_FLAG_NUMERIC},

-	{CAPI_CMD_LOOKUP_METHOD,

-		"lookup_method",

-		"Set key lookup method (1=substring, 2=friendlyname, 3=container name)",

-		ENGINE_CMD_FLAG_NUMERIC},

-	{CAPI_CMD_STORE_NAME,

-		"store_name",

-		"certificate store name, default \"MY\"",

-		ENGINE_CMD_FLAG_STRING},

-	{CAPI_CMD_STORE_FLAGS,

-		"store_flags",

-		"Certificate store flags: 1 = system store",

-		ENGINE_CMD_FLAG_NUMERIC},

-

-	{0, NULL, NULL, 0}

-	};

-

-static int capi_idx = -1;

-static int rsa_capi_idx = -1;

-static int dsa_capi_idx = -1;

-static int cert_capi_idx = -1;

-

-static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))

-	{

-	int ret = 1;

-	CAPI_CTX *ctx;

-	BIO *out;

-	if (capi_idx == -1)

-		{

-		CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);

-		return 0;

-		}

-	ctx = ENGINE_get_ex_data(e, capi_idx);

-	out = BIO_new_fp(stdout, BIO_NOCLOSE);

-	switch (cmd)

-		{

-		case CAPI_CMD_LIST_CSPS:

-		ret = capi_list_providers(ctx, out);

-		break;

-

-		case CAPI_CMD_LIST_CERTS:

-		ret = capi_list_certs(ctx, out, NULL);

-		break;

-

-		case CAPI_CMD_LOOKUP_CERT:

-		ret = capi_list_certs(ctx, out, p);

-		break;

-

-		case CAPI_CMD_LIST_CONTAINERS:

-		ret = capi_list_containers(ctx, out);

-		break;

-

-		case CAPI_CMD_STORE_NAME:

-		if (ctx->storename)

-			OPENSSL_free(ctx->storename);

-		ctx->storename = BUF_strdup(p);

-		CAPI_trace(ctx, "Setting store name to %s\n", p);

-		break;

-

-		case CAPI_CMD_STORE_FLAGS:

-		if (i & 1)

-			{

-			ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;

-			ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;

-			}

-		else

-			{

-			ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;

-			ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;

-			}

-		CAPI_trace(ctx, "Setting flags to %d\n", i);

-		break;

-

-		case CAPI_CMD_DEBUG_LEVEL:

-		ctx->debug_level = (int)i;

-		CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);

-		break;

-

-		case CAPI_CMD_DEBUG_FILE:

-		ctx->debug_file = BUF_strdup(p);

-		CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);

-		break;

-

-		case CAPI_CMD_KEYTYPE:

-		ctx->keytype = i;

-		CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);

-		break;

-

-		case CAPI_CMD_SET_CSP_IDX:

-		ret = capi_ctx_set_provname_idx(ctx, i);

-		break;

-

-		case CAPI_CMD_LIST_OPTIONS:

-		ctx->dump_flags = i;

-		break;

-

-		case CAPI_CMD_LOOKUP_METHOD:

-		if (i < 1 || i > 3)

-			{

-			CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);

-			return 0;

-			}

-		ctx->lookup_method = i;

-		break;

-

-		case CAPI_CMD_SET_CSP_NAME:

-		ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);

-		break;

-

-		case CAPI_CMD_SET_CSP_TYPE:

-		ctx->csptype = i;

-		break;

-

-		default:

-		CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);

-		ret = 0;

-	}

-

-	BIO_free(out);

-	return ret;

-

-	}

-

-static RSA_METHOD capi_rsa_method =

-	{

-	"CryptoAPI RSA method",

-	0,				/* pub_enc */

-	0,				/* pub_dec */

-	capi_rsa_priv_enc,		/* priv_enc */

-	capi_rsa_priv_dec,		/* priv_dec */

-	0,				/* rsa_mod_exp */

-	0,				/* bn_mod_exp */

-	0,				/* init	*/

-	capi_rsa_free,			/* finish */

-	RSA_FLAG_SIGN_VER, 		/* flags */

-	NULL,				/* app_data */

-	capi_rsa_sign,			/* rsa_sign */

-	0				/* rsa_verify */

-	};

-

-static DSA_METHOD capi_dsa_method =

-	{

-	"CryptoAPI DSA method",

-	capi_dsa_do_sign,		/* dsa_do_sign */

-	0,				/* dsa_sign_setup */

-	0,				/* dsa_do_verify */

-	0,				/* dsa_mod_exp */

-	0,				/* bn_mod_exp */

-	0,				/* init	*/

-	capi_dsa_free,			/* finish */

-	0, 				/* flags */

-	NULL,				/* app_data */

-	0,				/* dsa_paramgen */

-	0				/* dsa_keygen */

-	};

-

-static int capi_init(ENGINE *e)

-	{

-	CAPI_CTX *ctx;

-	const RSA_METHOD *ossl_rsa_meth;

-	const DSA_METHOD *ossl_dsa_meth;

-	capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);

-	cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);

-

-	ctx = capi_ctx_new();

-	if (!ctx || (capi_idx < 0))

-		goto memerr;

-

-	ENGINE_set_ex_data(e, capi_idx, ctx);

-	/* Setup RSA_METHOD */

-	rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);

-	ossl_rsa_meth = RSA_PKCS1_SSLeay();

-	capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;

-	capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;

-	capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;

-	capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;

-

-	/* Setup DSA Method */

-	dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);

-	ossl_dsa_meth = DSA_OpenSSL();

-	capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;

-	capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;

-	capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;

-

-#ifdef OPENSSL_CAPIENG_DIALOG

-	{

-	HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));

-	HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));

-	if (cryptui)

-		ctx->certselectdlg = (CERTDLG)GetProcAddress(cryptui, "CryptUIDlgSelectCertificateFromStore");

-	if (kernel)

-		ctx->getconswindow = (GETCONSWIN)GetProcAddress(kernel, "GetConsoleWindow");

-	if (cryptui && !OPENSSL_isservice())

-		ctx->client_cert_select = cert_select_dialog;

-	}

-#endif

-		

-

-	return 1;

-

-	memerr:

-	CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);

-	return 0;

-

-	return 1;

-	}

-

-static int capi_destroy(ENGINE *e)

-	{

-	ERR_unload_CAPI_strings();

-	return 1;

-	}

-

-static int capi_finish(ENGINE *e)

-	{

-	CAPI_CTX *ctx;

-	ctx = ENGINE_get_ex_data(e, capi_idx);

-	capi_ctx_free(ctx);

-	ENGINE_set_ex_data(e, capi_idx, NULL);

-	return 1;

-	}

-

-

-/* CryptoAPI key application data. This contains

- * a handle to the private key container (for sign operations)

- * and a handle to the key (for decrypt operations).

- */

-

-struct CAPI_KEY_st

-	{

-	/* Associated certificate context (if any) */

-	PCCERT_CONTEXT pcert;

-	HCRYPTPROV hprov;

-	HCRYPTKEY key;

-	DWORD keyspec;

-	};

-

-static int bind_capi(ENGINE *e)

-	{

-	if (!ENGINE_set_id(e, engine_capi_id)

-		|| !ENGINE_set_name(e, engine_capi_name)

-		|| !ENGINE_set_init_function(e, capi_init)

-		|| !ENGINE_set_finish_function(e, capi_finish)

-		|| !ENGINE_set_destroy_function(e, capi_destroy)

-		|| !ENGINE_set_RSA(e, &capi_rsa_method)

-		|| !ENGINE_set_DSA(e, &capi_dsa_method)

-		|| !ENGINE_set_load_privkey_function(e, capi_load_privkey)

-		|| !ENGINE_set_load_ssl_client_cert_function(e,

-						capi_load_ssl_client_cert)

-		|| !ENGINE_set_cmd_defns(e, capi_cmd_defns)

-		|| !ENGINE_set_ctrl_function(e, capi_ctrl))

-			return 0;

-	ERR_load_CAPI_strings();

-

-	return 1;

-

-	}

-

-#ifndef OPENSSL_NO_DYNAMIC_ENGINE

-static int bind_helper(ENGINE *e, const char *id)

-	{

-	if(id && (strcmp(id, engine_capi_id) != 0))

-		return 0;

-	if(!bind_capi(e))

-		return 0;

-	return 1;

-	}       

-IMPLEMENT_DYNAMIC_CHECK_FN()

-IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)

-#else

-static ENGINE *engine_capi(void)

-	{

-	ENGINE *ret = ENGINE_new();

-	if(!ret)

-		return NULL;

-	if(!bind_capi(ret))

-		{

-		ENGINE_free(ret);

-		return NULL;

-		}

-	return ret;

-	}

-

-void ENGINE_load_capi(void)

-	{

-	/* Copied from eng_[openssl|dyn].c */

-	ENGINE *toadd = engine_capi();

-	if(!toadd) return;

-	ENGINE_add(toadd);

-	ENGINE_free(toadd);

-	ERR_clear_error();

-	}

-#endif

-

-

-static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)

-	{

-	int i;

-	/* Reverse buffer in place: since this is a keyblob structure

-	 * that will be freed up after conversion anyway it doesn't 

-	 * matter if we change it.

-	 */

-	for(i = 0; i < binlen / 2; i++)

-		{

-		unsigned char c;

-		c = bin[i];

-		bin[i] = bin[binlen - i - 1];

-		bin[binlen - i - 1] = c;

-		}

-

-	if (!BN_bin2bn(bin, binlen, bn))

-		return 0;

-	return 1;

-	}

-

-/* Given a CAPI_KEY get an EVP_PKEY structure */

-

-static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)

-	{

-	unsigned char *pubkey = NULL;

-	DWORD len;

-	BLOBHEADER *bh;

-	RSA *rkey = NULL;

-	DSA *dkey = NULL;

-	EVP_PKEY *ret = NULL;

-	if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))

-		{

-		CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);

-		capi_addlasterror();

-		return NULL;

-		}

-

-	pubkey = OPENSSL_malloc(len);

-

-	if (!pubkey)

-		goto memerr;

-

-	if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len))

-		{

-		CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);

-		capi_addlasterror();

-		goto err;

-		}

-

-	bh = (BLOBHEADER *)pubkey;

-	if (bh->bType != PUBLICKEYBLOB)

-		{

-		CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);

-		goto err;

-		}

-	if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX)

-		{

-		RSAPUBKEY *rp;

-		DWORD rsa_modlen;

-		unsigned char *rsa_modulus;

-		rp = (RSAPUBKEY *)(bh + 1);

-		if (rp->magic != 0x31415352)

-			{

-			char magstr[10];

-			BIO_snprintf(magstr, 10, "%lx", rp->magic);

-			CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);

-			ERR_add_error_data(2, "magic=0x", magstr);

-			goto err;

-			}

-		rsa_modulus = (unsigned char *)(rp + 1);

-		rkey = RSA_new_method(eng);

-		if (!rkey)

-			goto memerr;

-

-		rkey->e = BN_new();

-		rkey->n = BN_new();

-

-		if (!rkey->e || !rkey->n)

-			goto memerr;

-

-		if (!BN_set_word(rkey->e, rp->pubexp))

-			goto memerr;

-

-		rsa_modlen = rp->bitlen / 8;

-		if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))

-			goto memerr;

-

-		RSA_set_ex_data(rkey, rsa_capi_idx, key);

-

-		if (!(ret = EVP_PKEY_new()))

-			goto memerr;

-

-		EVP_PKEY_assign_RSA(ret, rkey);

-		rkey = NULL;

-

-		}

-	else if (bh->aiKeyAlg == CALG_DSS_SIGN)

-		{

-		DSSPUBKEY *dp;

-		DWORD dsa_plen;

-		unsigned char *btmp;

-		dp = (DSSPUBKEY *)(bh + 1);

-		if (dp->magic != 0x31535344)

-			{

-			char magstr[10];

-			BIO_snprintf(magstr, 10, "%lx", dp->magic);

-			CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);

-			ERR_add_error_data(2, "magic=0x", magstr);

-			goto err;

-			}

-		dsa_plen = dp->bitlen / 8;

-		btmp = (unsigned char *)(dp + 1);

-		dkey = DSA_new_method(eng);

-		if (!dkey)

-			goto memerr;

-		dkey->p = BN_new();

-		dkey->q = BN_new();

-		dkey->g = BN_new();

-		dkey->pub_key = BN_new();

-		if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)

-			goto memerr;

-		if (!lend_tobn(dkey->p, btmp, dsa_plen))

-			goto memerr;

-		btmp += dsa_plen;

-		if (!lend_tobn(dkey->q, btmp, 20))

-			goto memerr;

-		btmp += 20;

-		if (!lend_tobn(dkey->g, btmp, dsa_plen))

-			goto memerr;

-		btmp += dsa_plen;

-		if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))

-			goto memerr;

-		btmp += dsa_plen;

-

-		DSA_set_ex_data(dkey, dsa_capi_idx, key);

-

-		if (!(ret = EVP_PKEY_new()))

-			goto memerr;

-

-		EVP_PKEY_assign_DSA(ret, dkey);

-		dkey = NULL;

-		}

-	else

-		{

-		char algstr[10];

-		BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);

-		CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);

-		ERR_add_error_data(2, "aiKeyAlg=0x", algstr);

-		goto err;

-		}

-

-

-	err:

-	if (pubkey)

-		OPENSSL_free(pubkey);

-	if (!ret)

-		{

-		if (rkey)

-			RSA_free(rkey);

-		if (dkey)

-			DSA_free(dkey);

-		}

-

-	return ret;

-

-memerr:

-	CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);

-	goto err;

-

-	}

-

-static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,

-	UI_METHOD *ui_method, void *callback_data)

-	{

-	CAPI_CTX *ctx;

-	CAPI_KEY *key;

-	EVP_PKEY *ret;

-	ctx = ENGINE_get_ex_data(eng, capi_idx);

-

-	if (!ctx)

-		{

-		CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);

-		return NULL;

-		}

-

-	key = capi_find_key(ctx, key_id);

-

-	if (!key)

-		return NULL;

-

-	ret = capi_get_pkey(eng, key);

-

-	if (!ret)

-		capi_free_key(key);

-	return ret;

-

-	}

-

-/* CryptoAPI RSA operations */

-

-int capi_rsa_priv_enc(int flen, const unsigned char *from,

-                unsigned char *to, RSA *rsa, int padding)

-	{

-	CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);

-	return -1;

-	}

-

-int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,

-             unsigned char *sigret, unsigned int *siglen, const RSA *rsa)

-	{

-	ALG_ID alg;

-	HCRYPTHASH hash;

-	DWORD slen;

-	unsigned int i;

-	int ret = -1;

-	CAPI_KEY *capi_key;

-	CAPI_CTX *ctx;

-

-	ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);

-

-	CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");

-

-	capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);

-	if (!capi_key)

-		{

-		CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);

-		return -1;

-		}

-/* Convert the signature type to a CryptoAPI algorithm ID */

-	switch(dtype)

-		{

-	case NID_sha1:

-		alg = CALG_SHA1;

-		break;

-

-	case NID_md5:

-		alg = CALG_MD5;

-		break;

-

-	case NID_md5_sha1:

-		alg = CALG_SSL3_SHAMD5;

-		break;

-	default:

-		{

-		char algstr[10];

-		BIO_snprintf(algstr, 10, "%lx", dtype);

-		CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);

-		ERR_add_error_data(2, "NID=0x", algstr);

-		return -1;

-		}

-	}

-

-

-

-/* Create the hash object */

-	if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash))

-		{

-		CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);

-		capi_addlasterror();

-		return -1;

-		}

-/* Set the hash value to the value passed */

-

-	if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0))

-		{

-		CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);

-		capi_addlasterror();

-		goto err;

-		}

-

-

-/* Finally sign it */

-	slen = RSA_size(rsa);

-	if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, sigret, &slen))

-		{

-		CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);

-		capi_addlasterror();

-		goto err;

-		}

-	else

-		{

-		ret = 1;

-		/* Inplace byte reversal of signature */

-		for(i = 0; i < slen / 2; i++)

-			{

-			unsigned char c;

-			c = sigret[i];

-			sigret[i] = sigret[slen - i - 1];

-			sigret[slen - i - 1] = c;

-			}

-		*siglen = slen;

-		}

-

-	/* Now cleanup */

-

-err:

-	CryptDestroyHash(hash);

-

-	return ret;

-	}

-

-int capi_rsa_priv_dec(int flen, const unsigned char *from,

-                unsigned char *to, RSA *rsa, int padding)

-	{

-	int i;

-	unsigned char *tmpbuf;

-	CAPI_KEY *capi_key;

-	CAPI_CTX *ctx;

-	ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);

-

-	CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");

-

-

-	capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);

-	if (!capi_key)

-		{

-		CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);

-		return -1;

-		}

-

-	if(padding != RSA_PKCS1_PADDING)

-		{

-		char errstr[10];

-		BIO_snprintf(errstr, 10, "%d", padding);

-		CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);

-		ERR_add_error_data(2, "padding=", errstr);

-		return -1;

-		}

-

-	/* Create temp reverse order version of input */

-	if(!(tmpbuf = OPENSSL_malloc(flen)) ) 

-		{

-		CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);

-		return -1;

-		}

-	for(i = 0; i < flen; i++)

-		tmpbuf[flen - i - 1] = from[i];

-	

-	/* Finally decrypt it */

-	if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen))

-		{

-		CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);

-		capi_addlasterror();

-		OPENSSL_free(tmpbuf);

-		return -1;

-		} 

-	else memcpy(to, tmpbuf, flen);

-

-	OPENSSL_free(tmpbuf);

-

-	return flen;

-	}

-

-static int capi_rsa_free(RSA *rsa)

-	{

-	CAPI_KEY *capi_key;

-	capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);

-	capi_free_key(capi_key);

-	RSA_set_ex_data(rsa, rsa_capi_idx, 0);

-	return 1;

-	}

-

-/* CryptoAPI DSA operations */

-

-static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,

-								DSA *dsa)

-	{

-	HCRYPTHASH hash;

-	DWORD slen;

-	DSA_SIG *ret = NULL;

-	CAPI_KEY *capi_key;

-	CAPI_CTX *ctx;

-	unsigned char csigbuf[40];

-

-	ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);

-

-	CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");

-

-	capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);

-

-	if (!capi_key)

-		{

-		CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);

-		return NULL;

-		}

-

-	if (dlen != 20)

-		{

-		CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);

-		return NULL;

-		}

-

-	/* Create the hash object */

-	if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash))

-		{

-		CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);

-		capi_addlasterror();

-		return NULL;

-		}

-

-	/* Set the hash value to the value passed */

-	if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0))

-		{

-		CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);

-		capi_addlasterror();

-		goto err;

-		}

-

-

-	/* Finally sign it */

-	slen = sizeof(csigbuf);

-	if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen))

-		{

-		CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);

-		capi_addlasterror();

-		goto err;

-		}

-	else

-		{

-		ret = DSA_SIG_new();

-		if (!ret)

-			goto err;

-		ret->r = BN_new();

-		ret->s = BN_new();

-		if (!ret->r || !ret->s)

-			goto err;

-		if (!lend_tobn(ret->r, csigbuf, 20)

-			|| !lend_tobn(ret->s, csigbuf + 20, 20))

-			{

-			DSA_SIG_free(ret);

-			ret = NULL;

-			goto err;

-			}

-		}

-

-	/* Now cleanup */

-

-err:

-	OPENSSL_cleanse(csigbuf, 40);

-	CryptDestroyHash(hash);

-	return ret;

-	}

-

-static int capi_dsa_free(DSA *dsa)

-	{

-	CAPI_KEY *capi_key;

-	capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);

-	capi_free_key(capi_key);

-	DSA_set_ex_data(dsa, dsa_capi_idx, 0);

-	return 1;

-	}

-

-static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr)

-	{

-	BIO *out;

-

-	if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))

-		return;

-	out = BIO_new_file(ctx->debug_file, "a+");

-	BIO_vprintf(out, format, argptr);

-	BIO_free(out);

-	}

-

-static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)

-	{

-	va_list args;

-	va_start(args, format);

-	capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);

-	va_end(args);

-	}

-

-static void capi_addlasterror(void)

-	{

-	capi_adderror(GetLastError());

-	}

-

-static void capi_adderror(DWORD err)

-	{

-	char errstr[10];

-	BIO_snprintf(errstr, 10, "%lX", err);

-	ERR_add_error_data(2, "Error code= 0x", errstr);

-	}

-

-static char *wide_to_asc(LPWSTR wstr)

-	{

-	char *str;

-	int len_0,sz;

-

-	if (!wstr)

-		return NULL;

-	len_0 = (int)wcslen(wstr)+1;	/* WideCharToMultiByte expects int */

-        sz = WideCharToMultiByte(CP_ACP,0,wstr,len_0,NULL,0,NULL,NULL);

-	if (!sz)

-		{

-		CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);

-		return NULL;

-		}

-	str = OPENSSL_malloc(sz);

-	if (!str)

-		{

-		CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);

-		return NULL;

-		}

-	if (!WideCharToMultiByte(CP_ACP,0,wstr,len_0,str,sz,NULL,NULL))

-		{

-		OPENSSL_free(str);

-		CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);

-		return NULL;

-		}

-	return str;

-	}

-

-static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx)

-	{

-	LPSTR name;

-	DWORD len, err;

-	CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);

-	if (!CryptEnumProvidersA(idx, NULL, 0, ptype, NULL, &len))

-		{

-		err = GetLastError();

-		if (err == ERROR_NO_MORE_ITEMS)

-			return 2;

-		CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);

-		capi_adderror(err);

-		return 0;

-		}

-	name = OPENSSL_malloc(len);

-	if (!CryptEnumProvidersA(idx, NULL, 0, ptype, name, &len))

-		{

-		err = GetLastError();

-		if (err == ERROR_NO_MORE_ITEMS)

-			return 2;

-		CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);

-		capi_adderror(err);

-		return 0;

-		}

-	*pname = name;

-	CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype);

-

-	return 1;

-	}

-

-static int capi_list_providers(CAPI_CTX *ctx, BIO *out)

-	{

-	DWORD idx, ptype;

-	int ret;

-	LPSTR provname = NULL;

-	CAPI_trace(ctx, "capi_list_providers\n");

-	BIO_printf(out, "Available CSPs:\n");

-	for(idx = 0; ; idx++)

-		{

-		ret = capi_get_provname(ctx, &provname, &ptype, idx);

-		if (ret == 2)

-			break;

-		if (ret == 0)

-			break;

-		BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);

-		OPENSSL_free(provname);

-		}

-	return 1;

-	}

-

-static int capi_list_containers(CAPI_CTX *ctx, BIO *out)

-	{

-	int ret = 1;

-	HCRYPTPROV hprov;

-	DWORD err, idx, flags, buflen = 0, clen;

-	LPSTR cname;

-	CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype);

-	if (!CryptAcquireContextA(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT))

-		{

-		CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);

-		capi_addlasterror();

-		return 0;

-		}

-	if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST))

-		{

-		CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);

-		capi_addlasterror();

-		return 0;

-		}

-	CAPI_trace(ctx, "Got max container len %d\n", buflen);

-	if (buflen == 0)

-		buflen = 1024;

-	cname = OPENSSL_malloc(buflen);

-	if (!cname)

-		{

-		CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);

-		goto err;

-		}

-

-	for (idx = 0;;idx++)

-		{

-		clen = buflen;

-		cname[0] = 0;

-

-		if (idx == 0)

-			flags = CRYPT_FIRST;

-		else

-			flags = 0;

-		if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags))

-			{

-			err = GetLastError();

-			if (err == ERROR_NO_MORE_ITEMS)

-				goto done;

-			CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);

-			capi_adderror(err);

-			goto err;

-			}

-		CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags);

-		if (!cname[0] && (clen == buflen))

-			{

-			CAPI_trace(ctx, "Enumerate bug: using workaround\n");

-			goto done;

-			}

-		BIO_printf(out, "%d. %s\n", idx, cname);

-		}

-	err:

-

-	ret = 0;

-

-	done:

-	if (cname)

-		OPENSSL_free(cname);

-	CryptReleaseContext(hprov, 0);

-

-	return ret;

-	}

-

-CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert)

-	{

-	DWORD len;

-	CRYPT_KEY_PROV_INFO *pinfo;

-	

-	if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))

-		return NULL;

-	pinfo = OPENSSL_malloc(len);

-	if (!pinfo)

-		{

-		CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);

-		return NULL;

-		}

-	if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len))

-		{

-		CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);

-		capi_addlasterror();

-		OPENSSL_free(pinfo);

-		return NULL;

-		}

-	return pinfo;

-	}

-

-static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo)

-	{

-	char *provname = NULL, *contname = NULL;

-	if (!pinfo)

-		{

-		BIO_printf(out, "  No Private Key\n");

-		return;

-		}

-	provname = wide_to_asc(pinfo->pwszProvName);

-	contname = wide_to_asc(pinfo->pwszContainerName);

-	if (!provname || !contname)

-		goto err;

-

-	BIO_printf(out, "  Private Key Info:\n");

-	BIO_printf(out, "    Provider Name:  %s, Provider Type %d\n", provname, pinfo->dwProvType);

-	BIO_printf(out, "    Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec);

-	err:

-	if (provname)

-		OPENSSL_free(provname);

-	if (contname)

-		OPENSSL_free(contname);

-	}

-

-char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)

-	{

-	LPWSTR wfname;

-	DWORD dlen;

-

-	CAPI_trace(ctx, "capi_cert_get_fname\n");

-	if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))

-		return NULL;

-	wfname = OPENSSL_malloc(dlen);

-	if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen))

-		{

-		char *fname = wide_to_asc(wfname);

-		OPENSSL_free(wfname);

-		return fname;

-		}

-	CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);

-	capi_addlasterror();

-

-	OPENSSL_free(wfname);

-	return NULL;

-	}

-

-

-void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)

-	{

-	X509 *x;

-	unsigned char *p;

-	unsigned long flags = ctx->dump_flags;

-	if (flags & CAPI_DMP_FNAME)

-		{

-		char *fname;

-		fname = capi_cert_get_fname(ctx, cert);

-		if (fname)

-			{

-			BIO_printf(out, "  Friendly Name \"%s\"\n", fname);

-			OPENSSL_free(fname);

-			}

-		else

-			BIO_printf(out, "  <No Friendly Name>\n");

-		}

-

-	p = cert->pbCertEncoded;

-	x = d2i_X509(NULL, &p, cert->cbCertEncoded);

-	if (!x)

-		BIO_printf(out, "  <Can't parse certificate>\n");

-	if (flags & CAPI_DMP_SUMMARY)

-		{

-		BIO_printf(out, "  Subject: ");

-		X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);

-		BIO_printf(out, "\n  Issuer: ");

-		X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);

-		BIO_printf(out, "\n");

-		}

-	if (flags & CAPI_DMP_FULL)

-		X509_print_ex(out, x, XN_FLAG_ONELINE,0);

-

-	if (flags & CAPI_DMP_PKEYINFO)

-		{

-		CRYPT_KEY_PROV_INFO *pinfo;

-		pinfo = capi_get_prov_info(ctx, cert);

-		capi_dump_prov_info(ctx, out, pinfo);

-		if (pinfo)

-			OPENSSL_free(pinfo);

-		}

-

-	if (flags & CAPI_DMP_PEM)

-		PEM_write_bio_X509(out, x);

-	X509_free(x);

-	}

-

-HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)

-	{

-	HCERTSTORE hstore;

-

-	if (!storename)

-		storename = ctx->storename;

-	if (!storename)

-		storename = "MY";

-	CAPI_trace(ctx, "Opening certificate store %s\n", storename);

-

-	hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0, 

-				ctx->store_flags, storename);

-	if (!hstore)

-		{

-		CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);

-		capi_addlasterror();

-		}

-	return hstore;

-	}

-

-int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)

-	{

-	char *storename;

-	int idx;

-	int ret = 1;

-	HCERTSTORE hstore;

-	PCCERT_CONTEXT cert = NULL;

-

-	storename = ctx->storename;

-	if (!storename)

-		storename = "MY";

-	CAPI_trace(ctx, "Listing certs for store %s\n", storename);

-

-	hstore = capi_open_store(ctx, storename);

-	if (!hstore)

-		return 0;

-	if (id)

-		{

-		cert = capi_find_cert(ctx, id, hstore);

-		if (!cert)

-			{

-			ret = 0;

-			goto err;

-			}

-		capi_dump_cert(ctx, out, cert);

-		CertFreeCertificateContext(cert);

-		}

-	else

-		{

-		for(idx = 0;;idx++)

-			{

-			LPWSTR fname = NULL;

-			cert = CertEnumCertificatesInStore(hstore, cert);

-			if (!cert)

-				break;

-			BIO_printf(out, "Certificate %d\n", idx);

-			capi_dump_cert(ctx, out, cert);

-			}

-		}

-	err:

-	CertCloseStore(hstore, 0);

-	return ret;

-	}

-

-static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore)

-	{

-	PCCERT_CONTEXT cert = NULL;

-	char *fname = NULL;

-	int match;

-	switch(ctx->lookup_method)

-		{

-		case CAPI_LU_SUBSTR:

-			return CertFindCertificateInStore(hstore,

-					X509_ASN_ENCODING, 0,

-					CERT_FIND_SUBJECT_STR_A, id, NULL);

-		case CAPI_LU_FNAME:

-			for(;;)

-				{

-				cert = CertEnumCertificatesInStore(hstore, cert);

-				if (!cert)

-					return NULL;

-				fname = capi_cert_get_fname(ctx, cert);

-				if (fname)

-					{

-					if (strcmp(fname, id))

-						match = 0;

-					else

-						match = 1;

-					OPENSSL_free(fname);

-					if (match)

-						return cert;

-					}

-				}

-		default:

-			return NULL;

-		}

-	}

-

-static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)

-	{

-	CAPI_KEY *key;

-	key = OPENSSL_malloc(sizeof(CAPI_KEY));

-	CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n", 

-						contname, provname, ptype);

-	if (!CryptAcquireContextA(&key->hprov, contname, provname, ptype, 0))

-		{

-		CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);

-		capi_addlasterror();

-		goto err;

-		}

-	if (!CryptGetUserKey(key->hprov, keyspec, &key->key))

-		{

-		CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);

-		capi_addlasterror();

-		CryptReleaseContext(key->hprov, 0);

-		goto err;

-		}

-	key->keyspec = keyspec;

-	key->pcert = NULL;

-	return key;

-

-	err:

-	OPENSSL_free(key);

-	return NULL;

-	}

-

-static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)

-	{

-	CAPI_KEY *key = NULL;

-	CRYPT_KEY_PROV_INFO *pinfo = NULL;

-	char *provname = NULL, *contname = NULL;

-	pinfo = capi_get_prov_info(ctx, cert);

-	if (!pinfo)

-		goto err;

-	provname = wide_to_asc(pinfo->pwszProvName);

-	contname = wide_to_asc(pinfo->pwszContainerName);

-	if (!provname || !contname)

-		goto err;

-	key = capi_get_key(ctx, contname, provname,

-				pinfo->dwProvType, pinfo->dwKeySpec);

-

-	err:

-	if (pinfo)

-		OPENSSL_free(pinfo);

-	if (provname)

-		OPENSSL_free(provname);

-	if (contname)

-		OPENSSL_free(contname);

-	return key;

-	}

-

-CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)

-	{

-	PCCERT_CONTEXT cert;

-	HCERTSTORE hstore;

-	CAPI_KEY *key = NULL;

-	switch (ctx->lookup_method)

-		{

-		case CAPI_LU_SUBSTR:

-		case CAPI_LU_FNAME:

-		hstore = capi_open_store(ctx, NULL);

-		if (!hstore)

-			return NULL;

-		cert = capi_find_cert(ctx, id, hstore);

-		if (cert)

-			{

-			key = capi_get_cert_key(ctx, cert);

-			CertFreeCertificateContext(cert);

-			}

-		CertCloseStore(hstore, 0);

-		break;

-

-		case CAPI_LU_CONTNAME:

-		key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype,

-							ctx->keytype);

-		break;

-		}

-

-	return key;

-	}

-

-void capi_free_key(CAPI_KEY *key)

-	{

-	if (!key)

-		return;

-	CryptDestroyKey(key->key);

-	CryptReleaseContext(key->hprov, 0);

-	if (key->pcert)

-		CertFreeCertificateContext(key->pcert);

-	OPENSSL_free(key);

-	}

-

-

-/* Initialize a CAPI_CTX structure */

-

-static CAPI_CTX *capi_ctx_new()

-	{

-	CAPI_CTX *ctx;

-	ctx = OPENSSL_malloc(sizeof(CAPI_CTX));

-	if (!ctx)

-		{

-		CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);

-		return NULL;

-		}

-	ctx->cspname = NULL;

-	ctx->csptype = PROV_RSA_FULL;

-	ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME;

-	ctx->keytype = AT_KEYEXCHANGE;

-	ctx->storename = NULL;

-	ctx->ssl_client_store = NULL;

-	ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |

-				CERT_STORE_READONLY_FLAG |

-				CERT_SYSTEM_STORE_CURRENT_USER;

-	ctx->lookup_method = CAPI_LU_SUBSTR;

-	ctx->debug_level = 0;

-	ctx->debug_file = NULL;

-	ctx->client_cert_select = cert_select_simple;

-	return ctx;

-	}

-

-static void capi_ctx_free(CAPI_CTX *ctx)

-	{

-	CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);

-	if (!ctx)

-		return;

-	if (ctx->cspname)

-		OPENSSL_free(ctx->cspname);

-	if (ctx->debug_file)

-		OPENSSL_free(ctx->debug_file);

-	if (ctx->storename)

-		OPENSSL_free(ctx->storename);

-	if (ctx->ssl_client_store)

-		OPENSSL_free(ctx->ssl_client_store);

-	OPENSSL_free(ctx);

-	}

-

-static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check)

-	{

-	CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);

-	if (check)

-		{

-		HCRYPTPROV hprov;

-		if (!CryptAcquireContextA(&hprov, NULL, pname, type,

-						CRYPT_VERIFYCONTEXT))

-			{

-			CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);

-			capi_addlasterror();

-			return 0;

-			}

-		CryptReleaseContext(hprov, 0);

-		}

-	ctx->cspname = BUF_strdup(pname);

-	ctx->csptype = type;

-	return 1;

-	}

-

-static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)

-	{

-	LPSTR pname;

-	DWORD type;

-	if (capi_get_provname(ctx, &pname, &type, idx) != 1)

-		return 0;

-	return capi_ctx_set_provname(ctx, pname, type, 0);

-	}

-

-static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)

-	{

-	int i;

-	X509_NAME *nm;

-	/* Special case: empty list: match anything */

-	if (sk_X509_NAME_num(ca_dn) <= 0)

-		return 1;

-	for (i = 0; i < sk_X509_NAME_num(ca_dn); i++)

-		{

-		nm = sk_X509_NAME_value(ca_dn, i);

-		if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))

-				return 1;

-		}

-	return 0;

-	}

-

-

-

-static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,

-	STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,

-	STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data)

-	{

-	STACK_OF(X509) *certs = NULL;

-	X509 *x;

-	char *storename;

-	const char *p;

-	int i, client_cert_idx;

-	HCERTSTORE hstore;

-	PCCERT_CONTEXT cert = NULL, excert = NULL;

-	CAPI_CTX *ctx;

-	CAPI_KEY *key;

-	ctx = ENGINE_get_ex_data(e, capi_idx);

-

-	*pcert = NULL;

-	*pkey = NULL;

-

-	storename = ctx->ssl_client_store;

-	if (!storename)

-		storename = "MY";

-

-	hstore = capi_open_store(ctx, storename);

-	if (!hstore)

-		return 0;

-	/* Enumerate all certificates collect any matches */

-	for(i = 0;;i++)

-		{

-		cert = CertEnumCertificatesInStore(hstore, cert);

-		if (!cert)

-			break;

-		p = cert->pbCertEncoded;

-		x = d2i_X509(NULL, &p, cert->cbCertEncoded);

-		if (!x)

-			{

-			CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);

-			continue;

-			}

-		if (cert_issuer_match(ca_dn, x)

-			&& X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0))

-			{

-			key = capi_get_cert_key(ctx, cert);

-			if (!key)

-				{

-				X509_free(x);

-				continue;

-				}

-			/* Match found: attach extra data to it so

-			 * we can retrieve the key later.

-			 */

-			excert = CertDuplicateCertificateContext(cert);

-			key->pcert = excert;

-			X509_set_ex_data(x, cert_capi_idx, key);

-

-			if (!certs)

-				certs = sk_X509_new_null();

-

-			sk_X509_push(certs, x);

-			}

-		else

-			X509_free(x);

-

-		}

-

-	if (cert)

-		CertFreeCertificateContext(cert);

-	if (hstore)

-		CertCloseStore(hstore, 0);

-

-	if (!certs)

-		return 0;

-

-

-	/* Select the appropriate certificate */

-

-	client_cert_idx = ctx->client_cert_select(e, ssl, certs);

-

-	/* Set the selected certificate and free the rest */

-

-	for(i = 0; i < sk_X509_num(certs); i++)

-		{

-		x = sk_X509_value(certs, i);

-		if (i == client_cert_idx)

-			*pcert = x;

-		else

-			{

-			key = X509_get_ex_data(x, cert_capi_idx);

-			capi_free_key(key);

-			X509_free(x);

-			}

-		}

-

-	sk_X509_free(certs);

-

-	if (!*pcert)

-		return 0;

-

-	/* Setup key for selected certificate */

-

-	key = X509_get_ex_data(*pcert, cert_capi_idx);

-	*pkey = capi_get_pkey(e, key);

-	X509_set_ex_data(*pcert, cert_capi_idx, NULL);

-

-	return 1;

-

-	}

-

-

-/* Simple client cert selection function: always select first */

-

-static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)

-	{

-	return 0;

-	}

-

-#ifdef OPENSSL_CAPIENG_DIALOG

-

-/* More complex cert selection function, using standard function

- * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.

- */

-

-/* Definitions which are in cryptuiapi.h but this is not present in older

- * versions of headers.

- */

-

-#ifndef CRYPTUI_SELECT_LOCATION_COLUMN

-#define CRYPTUI_SELECT_LOCATION_COLUMN                   0x000000010

-#define CRYPTUI_SELECT_INTENDEDUSE_COLUMN                0x000000004

-#endif

-

-#define dlg_title L"OpenSSL Application SSL Client Certificate Selection"

-#define dlg_prompt L"Select a certificate to use for authentication"

-#define dlg_columns	 CRYPTUI_SELECT_LOCATION_COLUMN \

-			|CRYPTUI_SELECT_INTENDEDUSE_COLUMN

-

-static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)

-	{

-	X509 *x;

-	HCERTSTORE dstore;

-	PCCERT_CONTEXT cert;

-	CAPI_CTX *ctx;

-	CAPI_KEY *key;

-	HWND hwnd;

-	int i, idx = -1;

-	if (sk_X509_num(certs) == 1)

-		return 0;

-	ctx = ENGINE_get_ex_data(e, capi_idx);

-	/* Create an in memory store of certificates */

-	dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,

-					CERT_STORE_CREATE_NEW_FLAG, NULL);

-	if (!dstore)

-		{

-		CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);

-		capi_addlasterror();

-		goto err;

-		}

-	/* Add all certificates to store */

-	for(i = 0; i < sk_X509_num(certs); i++)

-		{

-		x = sk_X509_value(certs, i);

-		key = X509_get_ex_data(x, cert_capi_idx);

-

-		if (!CertAddCertificateContextToStore(dstore, key->pcert,

-						CERT_STORE_ADD_NEW, NULL))

-			{

-			CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);

-			capi_addlasterror();

-			goto err;

-			}

-

-		}

-	hwnd = GetForegroundWindow();

-	if (!hwnd)

-		hwnd = GetActiveWindow();

-	if (!hwnd && ctx->getconswindow)

-		hwnd = ctx->getconswindow();

-	/* Call dialog to select one */

-	cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,

-						dlg_columns, 0, NULL);

-

-	/* Find matching cert from list */

-	if (cert)

-		{

-		for(i = 0; i < sk_X509_num(certs); i++)

-			{

-			x = sk_X509_value(certs, i);

-			key = X509_get_ex_data(x, cert_capi_idx);

-			if (CertCompareCertificate(

-				X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,

-					cert->pCertInfo,

-					key->pcert->pCertInfo))

-				{

-				idx = i;

-				break;

-				}

-			}

-		}

-

-	err:

-	if (dstore)

-		CertCloseStore(dstore, 0);

-	return idx;

-

-	}

-#endif

-

-#else /* !__COMPILE_CAPIENG */

-#include <openssl/engine.h>

-#ifndef OPENSSL_NO_DYNAMIC_ENGINE

-OPENSSL_EXPORT

-int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);

-OPENSSL_EXPORT

-int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; }

-IMPLEMENT_DYNAMIC_CHECK_FN()

-#else

-void ENGINE_load_capi(void){}

-#endif

-#endif

+/* engines/e_capi.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project.
+ */
+/* ====================================================================
+ * Copyright (c) 2008 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
+ *    licensing@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.
+ * ====================================================================
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <openssl/crypto.h>
+#include <openssl/buffer.h>
+#include <openssl/bn.h>
+
+#ifdef OPENSSL_SYS_WIN32
+#ifndef OPENSSL_NO_CAPIENG
+
+#include <openssl/rsa.h>
+
+#include <windows.h>
+
+#ifndef _WIN32_WINNT
+#define _WIN32_WINNT 0x0400
+#endif
+
+#include <wincrypt.h>
+
+/*
+ * This module uses several "new" interfaces, among which is
+ * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
+ * one of possible values you can pass to function in question. By
+ * checking if it's defined we can see if wincrypt.h and accompanying
+ * crypt32.lib are in shape. The native MingW32 headers up to and
+ * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
+ * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
+ * so we check for these too and avoid compiling.
+ * Yes, it's rather "weak" test and if compilation fails,
+ * then re-configure with -DOPENSSL_NO_CAPIENG.
+ */
+#if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
+    defined(CERT_STORE_PROV_SYSTEM_A) && \
+    defined(CERT_STORE_READONLY_FLAG)
+# define __COMPILE_CAPIENG
+#endif /* CERT_KEY_PROV_INFO_PROP_ID */
+#endif /* OPENSSL_NO_CAPIENG */
+#endif /* OPENSSL_SYS_WIN32 */
+
+#ifdef __COMPILE_CAPIENG
+
+#undef X509_EXTENSIONS
+#undef X509_CERT_PAIR
+
+/* Definitions which may be missing from earlier version of headers */
+#ifndef CERT_STORE_OPEN_EXISTING_FLAG
+#define CERT_STORE_OPEN_EXISTING_FLAG                   0x00004000
+#endif
+
+#ifndef CERT_STORE_CREATE_NEW_FLAG
+#define CERT_STORE_CREATE_NEW_FLAG                      0x00002000
+#endif
+
+#ifndef CERT_SYSTEM_STORE_CURRENT_USER
+#define CERT_SYSTEM_STORE_CURRENT_USER			0x00010000
+#endif 
+
+#include <openssl/engine.h>
+#include <openssl/pem.h>
+#include <openssl/x509v3.h>
+
+#include "e_capi_err.h"
+#include "e_capi_err.c"
+
+
+static const char *engine_capi_id = "capi";
+static const char *engine_capi_name = "CryptoAPI ENGINE";
+
+typedef struct CAPI_CTX_st CAPI_CTX;
+typedef struct CAPI_KEY_st CAPI_KEY;
+
+static void capi_addlasterror(void);
+static void capi_adderror(DWORD err);
+
+static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
+
+static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
+static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
+int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
+void capi_free_key(CAPI_KEY *key);
+
+static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore);
+
+CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
+
+static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
+	UI_METHOD *ui_method, void *callback_data);
+static int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
+             unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
+static int capi_rsa_priv_enc(int flen, const unsigned char *from,
+                unsigned char *to, RSA *rsa, int padding);
+static int capi_rsa_priv_dec(int flen, const unsigned char *from,
+                unsigned char *to, RSA *rsa, int padding);
+static int capi_rsa_free(RSA *rsa);
+
+static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
+							DSA *dsa);
+static int capi_dsa_free(DSA *dsa);
+
+static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
+	STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
+	STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);
+
+static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
+#ifdef OPENSSL_CAPIENG_DIALOG
+static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
+#endif
+
+typedef PCCERT_CONTEXT (WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
+						LPCWSTR, DWORD, DWORD,
+						void *);
+typedef HWND (WINAPI *GETCONSWIN)(void);
+
+/* This structure contains CAPI ENGINE specific data:
+ * it contains various global options and affects how
+ * other functions behave.
+ */
+
+#define CAPI_DBG_TRACE	2
+#define CAPI_DBG_ERROR	1
+
+struct CAPI_CTX_st {
+	int debug_level;
+	char *debug_file;
+	/* Parameters to use for container lookup */
+	DWORD keytype;
+	LPSTR cspname;
+	DWORD csptype;
+	/* Certificate store name to use */
+	LPSTR storename;
+	LPSTR ssl_client_store;
+	/* System store flags */
+	DWORD store_flags;
+
+/* Lookup string meanings in load_private_key */
+/* Substring of subject: uses "storename" */
+#define CAPI_LU_SUBSTR		1
+/* Friendly name: uses storename */
+#define CAPI_LU_FNAME		2
+/* Container name: uses cspname, keytype */
+#define CAPI_LU_CONTNAME	3
+	int lookup_method;
+/* Info to dump with dumpcerts option */
+/* Issuer and serial name strings */
+#define CAPI_DMP_SUMMARY	0x1
+/* Friendly name */
+#define CAPI_DMP_FNAME		0x2
+/* Full X509_print dump */
+#define CAPI_DMP_FULL		0x4
+/* Dump PEM format certificate */
+#define CAPI_DMP_PEM		0x8
+/* Dump pseudo key (if possible) */
+#define CAPI_DMP_PSKEY		0x10
+/* Dump key info (if possible) */
+#define CAPI_DMP_PKEYINFO	0x20
+
+	DWORD dump_flags;
+	int (*client_cert_select)(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
+
+	CERTDLG certselectdlg;
+	GETCONSWIN getconswindow;
+};
+
+
+static CAPI_CTX *capi_ctx_new();
+static void capi_ctx_free(CAPI_CTX *ctx);
+static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check);
+static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
+
+#define CAPI_CMD_LIST_CERTS		ENGINE_CMD_BASE
+#define CAPI_CMD_LOOKUP_CERT		(ENGINE_CMD_BASE + 1)
+#define CAPI_CMD_DEBUG_LEVEL		(ENGINE_CMD_BASE + 2)
+#define CAPI_CMD_DEBUG_FILE		(ENGINE_CMD_BASE + 3)
+#define CAPI_CMD_KEYTYPE		(ENGINE_CMD_BASE + 4)
+#define CAPI_CMD_LIST_CSPS		(ENGINE_CMD_BASE + 5)
+#define CAPI_CMD_SET_CSP_IDX		(ENGINE_CMD_BASE + 6)
+#define CAPI_CMD_SET_CSP_NAME		(ENGINE_CMD_BASE + 7)
+#define CAPI_CMD_SET_CSP_TYPE		(ENGINE_CMD_BASE + 8)
+#define CAPI_CMD_LIST_CONTAINERS	(ENGINE_CMD_BASE + 9)
+#define CAPI_CMD_LIST_OPTIONS		(ENGINE_CMD_BASE + 10)
+#define CAPI_CMD_LOOKUP_METHOD		(ENGINE_CMD_BASE + 11)
+#define CAPI_CMD_STORE_NAME		(ENGINE_CMD_BASE + 12)
+#define CAPI_CMD_STORE_FLAGS		(ENGINE_CMD_BASE + 13)
+
+static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
+	{CAPI_CMD_LIST_CERTS,
+		"list_certs",
+		"List all certificates in store",
+		ENGINE_CMD_FLAG_NO_INPUT},
+	{CAPI_CMD_LOOKUP_CERT,
+		"lookup_cert",
+		"Lookup and output certificates",
+		ENGINE_CMD_FLAG_STRING},
+	{CAPI_CMD_DEBUG_LEVEL,
+		"debug_level",
+		"debug level (1=errors, 2=trace)",
+		ENGINE_CMD_FLAG_NUMERIC},
+	{CAPI_CMD_DEBUG_FILE,
+		"debug_file",
+		"debugging filename)",
+		ENGINE_CMD_FLAG_STRING},
+	{CAPI_CMD_KEYTYPE,
+		"key_type",
+		"Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
+		ENGINE_CMD_FLAG_NUMERIC},
+	{CAPI_CMD_LIST_CSPS,
+		"list_csps",
+		"List all CSPs",
+		ENGINE_CMD_FLAG_NO_INPUT},
+	{CAPI_CMD_SET_CSP_IDX,
+		"csp_idx",
+		"Set CSP by index",
+		ENGINE_CMD_FLAG_NUMERIC},
+	{CAPI_CMD_SET_CSP_NAME,
+		"csp_name",
+		"Set CSP name, (default CSP used if not specified)",
+		ENGINE_CMD_FLAG_STRING},
+	{CAPI_CMD_SET_CSP_TYPE,
+		"csp_type",
+		"Set CSP type, (default RSA_PROV_FULL)",
+		ENGINE_CMD_FLAG_NUMERIC},
+	{CAPI_CMD_LIST_CONTAINERS,
+		"list_containers",
+		"list container names",
+		ENGINE_CMD_FLAG_NO_INPUT},
+	{CAPI_CMD_LIST_OPTIONS,
+		"list_options",
+		"Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
+		"32=private key info)",
+		ENGINE_CMD_FLAG_NUMERIC},
+	{CAPI_CMD_LOOKUP_METHOD,
+		"lookup_method",
+		"Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
+		ENGINE_CMD_FLAG_NUMERIC},
+	{CAPI_CMD_STORE_NAME,
+		"store_name",
+		"certificate store name, default \"MY\"",
+		ENGINE_CMD_FLAG_STRING},
+	{CAPI_CMD_STORE_FLAGS,
+		"store_flags",
+		"Certificate store flags: 1 = system store",
+		ENGINE_CMD_FLAG_NUMERIC},
+
+	{0, NULL, NULL, 0}
+	};
+
+static int capi_idx = -1;
+static int rsa_capi_idx = -1;
+static int dsa_capi_idx = -1;
+static int cert_capi_idx = -1;
+
+static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
+	{
+	int ret = 1;
+	CAPI_CTX *ctx;
+	BIO *out;
+	if (capi_idx == -1)
+		{
+		CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
+		return 0;
+		}
+	ctx = ENGINE_get_ex_data(e, capi_idx);
+	out = BIO_new_fp(stdout, BIO_NOCLOSE);
+	switch (cmd)
+		{
+		case CAPI_CMD_LIST_CSPS:
+		ret = capi_list_providers(ctx, out);
+		break;
+
+		case CAPI_CMD_LIST_CERTS:
+		ret = capi_list_certs(ctx, out, NULL);
+		break;
+
+		case CAPI_CMD_LOOKUP_CERT:
+		ret = capi_list_certs(ctx, out, p);
+		break;
+
+		case CAPI_CMD_LIST_CONTAINERS:
+		ret = capi_list_containers(ctx, out);
+		break;
+
+		case CAPI_CMD_STORE_NAME:
+		if (ctx->storename)
+			OPENSSL_free(ctx->storename);
+		ctx->storename = BUF_strdup(p);
+		CAPI_trace(ctx, "Setting store name to %s\n", p);
+		break;
+
+		case CAPI_CMD_STORE_FLAGS:
+		if (i & 1)
+			{
+			ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
+			ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
+			}
+		else
+			{
+			ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
+			ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
+			}
+		CAPI_trace(ctx, "Setting flags to %d\n", i);
+		break;
+
+		case CAPI_CMD_DEBUG_LEVEL:
+		ctx->debug_level = (int)i;
+		CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
+		break;
+
+		case CAPI_CMD_DEBUG_FILE:
+		ctx->debug_file = BUF_strdup(p);
+		CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
+		break;
+
+		case CAPI_CMD_KEYTYPE:
+		ctx->keytype = i;
+		CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
+		break;
+
+		case CAPI_CMD_SET_CSP_IDX:
+		ret = capi_ctx_set_provname_idx(ctx, i);
+		break;
+
+		case CAPI_CMD_LIST_OPTIONS:
+		ctx->dump_flags = i;
+		break;
+
+		case CAPI_CMD_LOOKUP_METHOD:
+		if (i < 1 || i > 3)
+			{
+			CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
+			return 0;
+			}
+		ctx->lookup_method = i;
+		break;
+
+		case CAPI_CMD_SET_CSP_NAME:
+		ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
+		break;
+
+		case CAPI_CMD_SET_CSP_TYPE:
+		ctx->csptype = i;
+		break;
+
+		default:
+		CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
+		ret = 0;
+	}
+
+	BIO_free(out);
+	return ret;
+
+	}
+
+static RSA_METHOD capi_rsa_method =
+	{
+	"CryptoAPI RSA method",
+	0,				/* pub_enc */
+	0,				/* pub_dec */
+	capi_rsa_priv_enc,		/* priv_enc */
+	capi_rsa_priv_dec,		/* priv_dec */
+	0,				/* rsa_mod_exp */
+	0,				/* bn_mod_exp */
+	0,				/* init	*/
+	capi_rsa_free,			/* finish */
+	RSA_FLAG_SIGN_VER, 		/* flags */
+	NULL,				/* app_data */
+	capi_rsa_sign,			/* rsa_sign */
+	0				/* rsa_verify */
+	};
+
+static DSA_METHOD capi_dsa_method =
+	{
+	"CryptoAPI DSA method",
+	capi_dsa_do_sign,		/* dsa_do_sign */
+	0,				/* dsa_sign_setup */
+	0,				/* dsa_do_verify */
+	0,				/* dsa_mod_exp */
+	0,				/* bn_mod_exp */
+	0,				/* init	*/
+	capi_dsa_free,			/* finish */
+	0, 				/* flags */
+	NULL,				/* app_data */
+	0,				/* dsa_paramgen */
+	0				/* dsa_keygen */
+	};
+
+static int capi_init(ENGINE *e)
+	{
+	CAPI_CTX *ctx;
+	const RSA_METHOD *ossl_rsa_meth;
+	const DSA_METHOD *ossl_dsa_meth;
+	capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
+	cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
+
+	ctx = capi_ctx_new();
+	if (!ctx || (capi_idx < 0))
+		goto memerr;
+
+	ENGINE_set_ex_data(e, capi_idx, ctx);
+	/* Setup RSA_METHOD */
+	rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
+	ossl_rsa_meth = RSA_PKCS1_SSLeay();
+	capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
+	capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
+	capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
+	capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
+
+	/* Setup DSA Method */
+	dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
+	ossl_dsa_meth = DSA_OpenSSL();
+	capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
+	capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
+	capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
+
+#ifdef OPENSSL_CAPIENG_DIALOG
+	{
+	HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
+	HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
+	if (cryptui)
+		ctx->certselectdlg = (CERTDLG)GetProcAddress(cryptui, "CryptUIDlgSelectCertificateFromStore");
+	if (kernel)
+		ctx->getconswindow = (GETCONSWIN)GetProcAddress(kernel, "GetConsoleWindow");
+	if (cryptui && !OPENSSL_isservice())
+		ctx->client_cert_select = cert_select_dialog;
+	}
+#endif
+		
+
+	return 1;
+
+	memerr:
+	CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
+	return 0;
+
+	return 1;
+	}
+
+static int capi_destroy(ENGINE *e)
+	{
+	ERR_unload_CAPI_strings();
+	return 1;
+	}
+
+static int capi_finish(ENGINE *e)
+	{
+	CAPI_CTX *ctx;
+	ctx = ENGINE_get_ex_data(e, capi_idx);
+	capi_ctx_free(ctx);
+	ENGINE_set_ex_data(e, capi_idx, NULL);
+	return 1;
+	}
+
+
+/* CryptoAPI key application data. This contains
+ * a handle to the private key container (for sign operations)
+ * and a handle to the key (for decrypt operations).
+ */
+
+struct CAPI_KEY_st
+	{
+	/* Associated certificate context (if any) */
+	PCCERT_CONTEXT pcert;
+	HCRYPTPROV hprov;
+	HCRYPTKEY key;
+	DWORD keyspec;
+	};
+
+static int bind_capi(ENGINE *e)
+	{
+	if (!ENGINE_set_id(e, engine_capi_id)
+		|| !ENGINE_set_name(e, engine_capi_name)
+		|| !ENGINE_set_init_function(e, capi_init)
+		|| !ENGINE_set_finish_function(e, capi_finish)
+		|| !ENGINE_set_destroy_function(e, capi_destroy)
+		|| !ENGINE_set_RSA(e, &capi_rsa_method)
+		|| !ENGINE_set_DSA(e, &capi_dsa_method)
+		|| !ENGINE_set_load_privkey_function(e, capi_load_privkey)
+		|| !ENGINE_set_load_ssl_client_cert_function(e,
+						capi_load_ssl_client_cert)
+		|| !ENGINE_set_cmd_defns(e, capi_cmd_defns)
+		|| !ENGINE_set_ctrl_function(e, capi_ctrl))
+			return 0;
+	ERR_load_CAPI_strings();
+
+	return 1;
+
+	}
+
+#ifndef OPENSSL_NO_DYNAMIC_ENGINE
+static int bind_helper(ENGINE *e, const char *id)
+	{
+	if(id && (strcmp(id, engine_capi_id) != 0))
+		return 0;
+	if(!bind_capi(e))
+		return 0;
+	return 1;
+	}       
+IMPLEMENT_DYNAMIC_CHECK_FN()
+IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
+#else
+static ENGINE *engine_capi(void)
+	{
+	ENGINE *ret = ENGINE_new();
+	if(!ret)
+		return NULL;
+	if(!bind_capi(ret))
+		{
+		ENGINE_free(ret);
+		return NULL;
+		}
+	return ret;
+	}
+
+void ENGINE_load_capi(void)
+	{
+	/* Copied from eng_[openssl|dyn].c */
+	ENGINE *toadd = engine_capi();
+	if(!toadd) return;
+	ENGINE_add(toadd);
+	ENGINE_free(toadd);
+	ERR_clear_error();
+	}
+#endif
+
+
+static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
+	{
+	int i;
+	/* Reverse buffer in place: since this is a keyblob structure
+	 * that will be freed up after conversion anyway it doesn't 
+	 * matter if we change it.
+	 */
+	for(i = 0; i < binlen / 2; i++)
+		{
+		unsigned char c;
+		c = bin[i];
+		bin[i] = bin[binlen - i - 1];
+		bin[binlen - i - 1] = c;
+		}
+
+	if (!BN_bin2bn(bin, binlen, bn))
+		return 0;
+	return 1;
+	}
+
+/* Given a CAPI_KEY get an EVP_PKEY structure */
+
+static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
+	{
+	unsigned char *pubkey = NULL;
+	DWORD len;
+	BLOBHEADER *bh;
+	RSA *rkey = NULL;
+	DSA *dkey = NULL;
+	EVP_PKEY *ret = NULL;
+	if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))
+		{
+		CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
+		capi_addlasterror();
+		return NULL;
+		}
+
+	pubkey = OPENSSL_malloc(len);
+
+	if (!pubkey)
+		goto memerr;
+
+	if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len))
+		{
+		CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
+		capi_addlasterror();
+		goto err;
+		}
+
+	bh = (BLOBHEADER *)pubkey;
+	if (bh->bType != PUBLICKEYBLOB)
+		{
+		CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
+		goto err;
+		}
+	if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX)
+		{
+		RSAPUBKEY *rp;
+		DWORD rsa_modlen;
+		unsigned char *rsa_modulus;
+		rp = (RSAPUBKEY *)(bh + 1);
+		if (rp->magic != 0x31415352)
+			{
+			char magstr[10];
+			BIO_snprintf(magstr, 10, "%lx", rp->magic);
+			CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
+			ERR_add_error_data(2, "magic=0x", magstr);
+			goto err;
+			}
+		rsa_modulus = (unsigned char *)(rp + 1);
+		rkey = RSA_new_method(eng);
+		if (!rkey)
+			goto memerr;
+
+		rkey->e = BN_new();
+		rkey->n = BN_new();
+
+		if (!rkey->e || !rkey->n)
+			goto memerr;
+
+		if (!BN_set_word(rkey->e, rp->pubexp))
+			goto memerr;
+
+		rsa_modlen = rp->bitlen / 8;
+		if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
+			goto memerr;
+
+		RSA_set_ex_data(rkey, rsa_capi_idx, key);
+
+		if (!(ret = EVP_PKEY_new()))
+			goto memerr;
+
+		EVP_PKEY_assign_RSA(ret, rkey);
+		rkey = NULL;
+
+		}
+	else if (bh->aiKeyAlg == CALG_DSS_SIGN)
+		{
+		DSSPUBKEY *dp;
+		DWORD dsa_plen;
+		unsigned char *btmp;
+		dp = (DSSPUBKEY *)(bh + 1);
+		if (dp->magic != 0x31535344)
+			{
+			char magstr[10];
+			BIO_snprintf(magstr, 10, "%lx", dp->magic);
+			CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
+			ERR_add_error_data(2, "magic=0x", magstr);
+			goto err;
+			}
+		dsa_plen = dp->bitlen / 8;
+		btmp = (unsigned char *)(dp + 1);
+		dkey = DSA_new_method(eng);
+		if (!dkey)
+			goto memerr;
+		dkey->p = BN_new();
+		dkey->q = BN_new();
+		dkey->g = BN_new();
+		dkey->pub_key = BN_new();
+		if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
+			goto memerr;
+		if (!lend_tobn(dkey->p, btmp, dsa_plen))
+			goto memerr;
+		btmp += dsa_plen;
+		if (!lend_tobn(dkey->q, btmp, 20))
+			goto memerr;
+		btmp += 20;
+		if (!lend_tobn(dkey->g, btmp, dsa_plen))
+			goto memerr;
+		btmp += dsa_plen;
+		if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
+			goto memerr;
+		btmp += dsa_plen;
+
+		DSA_set_ex_data(dkey, dsa_capi_idx, key);
+
+		if (!(ret = EVP_PKEY_new()))
+			goto memerr;
+
+		EVP_PKEY_assign_DSA(ret, dkey);
+		dkey = NULL;
+		}
+	else
+		{
+		char algstr[10];
+		BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
+		CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
+		ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
+		goto err;
+		}
+
+
+	err:
+	if (pubkey)
+		OPENSSL_free(pubkey);
+	if (!ret)
+		{
+		if (rkey)
+			RSA_free(rkey);
+		if (dkey)
+			DSA_free(dkey);
+		}
+
+	return ret;
+
+memerr:
+	CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
+	goto err;
+
+	}
+
+static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
+	UI_METHOD *ui_method, void *callback_data)
+	{
+	CAPI_CTX *ctx;
+	CAPI_KEY *key;
+	EVP_PKEY *ret;
+	ctx = ENGINE_get_ex_data(eng, capi_idx);
+
+	if (!ctx)
+		{
+		CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
+		return NULL;
+		}
+
+	key = capi_find_key(ctx, key_id);
+
+	if (!key)
+		return NULL;
+
+	ret = capi_get_pkey(eng, key);
+
+	if (!ret)
+		capi_free_key(key);
+	return ret;
+
+	}
+
+/* CryptoAPI RSA operations */
+
+int capi_rsa_priv_enc(int flen, const unsigned char *from,
+                unsigned char *to, RSA *rsa, int padding)
+	{
+	CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
+	return -1;
+	}
+
+int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
+             unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
+	{
+	ALG_ID alg;
+	HCRYPTHASH hash;
+	DWORD slen;
+	unsigned int i;
+	int ret = -1;
+	CAPI_KEY *capi_key;
+	CAPI_CTX *ctx;
+
+	ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
+
+	CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
+
+	capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
+	if (!capi_key)
+		{
+		CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
+		return -1;
+		}
+/* Convert the signature type to a CryptoAPI algorithm ID */
+	switch(dtype)
+		{
+	case NID_sha1:
+		alg = CALG_SHA1;
+		break;
+
+	case NID_md5:
+		alg = CALG_MD5;
+		break;
+
+	case NID_md5_sha1:
+		alg = CALG_SSL3_SHAMD5;
+		break;
+	default:
+		{
+		char algstr[10];
+		BIO_snprintf(algstr, 10, "%lx", dtype);
+		CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
+		ERR_add_error_data(2, "NID=0x", algstr);
+		return -1;
+		}
+	}
+
+
+
+/* Create the hash object */
+	if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash))
+		{
+		CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
+		capi_addlasterror();
+		return -1;
+		}
+/* Set the hash value to the value passed */
+
+	if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0))
+		{
+		CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
+		capi_addlasterror();
+		goto err;
+		}
+
+
+/* Finally sign it */
+	slen = RSA_size(rsa);
+	if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, sigret, &slen))
+		{
+		CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
+		capi_addlasterror();
+		goto err;
+		}
+	else
+		{
+		ret = 1;
+		/* Inplace byte reversal of signature */
+		for(i = 0; i < slen / 2; i++)
+			{
+			unsigned char c;
+			c = sigret[i];
+			sigret[i] = sigret[slen - i - 1];
+			sigret[slen - i - 1] = c;
+			}
+		*siglen = slen;
+		}
+
+	/* Now cleanup */
+
+err:
+	CryptDestroyHash(hash);
+
+	return ret;
+	}
+
+int capi_rsa_priv_dec(int flen, const unsigned char *from,
+                unsigned char *to, RSA *rsa, int padding)
+	{
+	int i;
+	unsigned char *tmpbuf;
+	CAPI_KEY *capi_key;
+	CAPI_CTX *ctx;
+	ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
+
+	CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
+
+
+	capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
+	if (!capi_key)
+		{
+		CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
+		return -1;
+		}
+
+	if(padding != RSA_PKCS1_PADDING)
+		{
+		char errstr[10];
+		BIO_snprintf(errstr, 10, "%d", padding);
+		CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
+		ERR_add_error_data(2, "padding=", errstr);
+		return -1;
+		}
+
+	/* Create temp reverse order version of input */
+	if(!(tmpbuf = OPENSSL_malloc(flen)) ) 
+		{
+		CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
+		return -1;
+		}
+	for(i = 0; i < flen; i++)
+		tmpbuf[flen - i - 1] = from[i];
+	
+	/* Finally decrypt it */
+	if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen))
+		{
+		CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
+		capi_addlasterror();
+		OPENSSL_free(tmpbuf);
+		return -1;
+		} 
+	else memcpy(to, tmpbuf, flen);
+
+	OPENSSL_free(tmpbuf);
+
+	return flen;
+	}
+
+static int capi_rsa_free(RSA *rsa)
+	{
+	CAPI_KEY *capi_key;
+	capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
+	capi_free_key(capi_key);
+	RSA_set_ex_data(rsa, rsa_capi_idx, 0);
+	return 1;
+	}
+
+/* CryptoAPI DSA operations */
+
+static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
+								DSA *dsa)
+	{
+	HCRYPTHASH hash;
+	DWORD slen;
+	DSA_SIG *ret = NULL;
+	CAPI_KEY *capi_key;
+	CAPI_CTX *ctx;
+	unsigned char csigbuf[40];
+
+	ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
+
+	CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
+
+	capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
+
+	if (!capi_key)
+		{
+		CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
+		return NULL;
+		}
+
+	if (dlen != 20)
+		{
+		CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
+		return NULL;
+		}
+
+	/* Create the hash object */
+	if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash))
+		{
+		CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
+		capi_addlasterror();
+		return NULL;
+		}
+
+	/* Set the hash value to the value passed */
+	if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0))
+		{
+		CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
+		capi_addlasterror();
+		goto err;
+		}
+
+
+	/* Finally sign it */
+	slen = sizeof(csigbuf);
+	if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen))
+		{
+		CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
+		capi_addlasterror();
+		goto err;
+		}
+	else
+		{
+		ret = DSA_SIG_new();
+		if (!ret)
+			goto err;
+		ret->r = BN_new();
+		ret->s = BN_new();
+		if (!ret->r || !ret->s)
+			goto err;
+		if (!lend_tobn(ret->r, csigbuf, 20)
+			|| !lend_tobn(ret->s, csigbuf + 20, 20))
+			{
+			DSA_SIG_free(ret);
+			ret = NULL;
+			goto err;
+			}
+		}
+
+	/* Now cleanup */
+
+err:
+	OPENSSL_cleanse(csigbuf, 40);
+	CryptDestroyHash(hash);
+	return ret;
+	}
+
+static int capi_dsa_free(DSA *dsa)
+	{
+	CAPI_KEY *capi_key;
+	capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
+	capi_free_key(capi_key);
+	DSA_set_ex_data(dsa, dsa_capi_idx, 0);
+	return 1;
+	}
+
+static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr)
+	{
+	BIO *out;
+
+	if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
+		return;
+	out = BIO_new_file(ctx->debug_file, "a+");
+	BIO_vprintf(out, format, argptr);
+	BIO_free(out);
+	}
+
+static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
+	{
+	va_list args;
+	va_start(args, format);
+	capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
+	va_end(args);
+	}
+
+static void capi_addlasterror(void)
+	{
+	capi_adderror(GetLastError());
+	}
+
+static void capi_adderror(DWORD err)
+	{
+	char errstr[10];
+	BIO_snprintf(errstr, 10, "%lX", err);
+	ERR_add_error_data(2, "Error code= 0x", errstr);
+	}
+
+static char *wide_to_asc(LPWSTR wstr)
+	{
+	char *str;
+	int len_0,sz;
+
+	if (!wstr)
+		return NULL;
+	len_0 = (int)wcslen(wstr)+1;	/* WideCharToMultiByte expects int */
+        sz = WideCharToMultiByte(CP_ACP,0,wstr,len_0,NULL,0,NULL,NULL);
+	if (!sz)
+		{
+		CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
+		return NULL;
+		}
+	str = OPENSSL_malloc(sz);
+	if (!str)
+		{
+		CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
+		return NULL;
+		}
+	if (!WideCharToMultiByte(CP_ACP,0,wstr,len_0,str,sz,NULL,NULL))
+		{
+		OPENSSL_free(str);
+		CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
+		return NULL;
+		}
+	return str;
+	}
+
+static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx)
+	{
+	LPSTR name;
+	DWORD len, err;
+	CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
+	if (!CryptEnumProvidersA(idx, NULL, 0, ptype, NULL, &len))
+		{
+		err = GetLastError();
+		if (err == ERROR_NO_MORE_ITEMS)
+			return 2;
+		CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
+		capi_adderror(err);
+		return 0;
+		}
+	name = OPENSSL_malloc(len);
+	if (!CryptEnumProvidersA(idx, NULL, 0, ptype, name, &len))
+		{
+		err = GetLastError();
+		if (err == ERROR_NO_MORE_ITEMS)
+			return 2;
+		CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
+		capi_adderror(err);
+		return 0;
+		}
+	*pname = name;
+	CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype);
+
+	return 1;
+	}
+
+static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
+	{
+	DWORD idx, ptype;
+	int ret;
+	LPSTR provname = NULL;
+	CAPI_trace(ctx, "capi_list_providers\n");
+	BIO_printf(out, "Available CSPs:\n");
+	for(idx = 0; ; idx++)
+		{
+		ret = capi_get_provname(ctx, &provname, &ptype, idx);
+		if (ret == 2)
+			break;
+		if (ret == 0)
+			break;
+		BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
+		OPENSSL_free(provname);
+		}
+	return 1;
+	}
+
+static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
+	{
+	int ret = 1;
+	HCRYPTPROV hprov;
+	DWORD err, idx, flags, buflen = 0, clen;
+	LPSTR cname;
+	CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype);
+	if (!CryptAcquireContextA(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT))
+		{
+		CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
+		capi_addlasterror();
+		return 0;
+		}
+	if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST))
+		{
+		CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
+		capi_addlasterror();
+		return 0;
+		}
+	CAPI_trace(ctx, "Got max container len %d\n", buflen);
+	if (buflen == 0)
+		buflen = 1024;
+	cname = OPENSSL_malloc(buflen);
+	if (!cname)
+		{
+		CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
+		goto err;
+		}
+
+	for (idx = 0;;idx++)
+		{
+		clen = buflen;
+		cname[0] = 0;
+
+		if (idx == 0)
+			flags = CRYPT_FIRST;
+		else
+			flags = 0;
+		if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags))
+			{
+			err = GetLastError();
+			if (err == ERROR_NO_MORE_ITEMS)
+				goto done;
+			CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
+			capi_adderror(err);
+			goto err;
+			}
+		CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags);
+		if (!cname[0] && (clen == buflen))
+			{
+			CAPI_trace(ctx, "Enumerate bug: using workaround\n");
+			goto done;
+			}
+		BIO_printf(out, "%d. %s\n", idx, cname);
+		}
+	err:
+
+	ret = 0;
+
+	done:
+	if (cname)
+		OPENSSL_free(cname);
+	CryptReleaseContext(hprov, 0);
+
+	return ret;
+	}
+
+CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
+	{
+	DWORD len;
+	CRYPT_KEY_PROV_INFO *pinfo;
+	
+	if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
+		return NULL;
+	pinfo = OPENSSL_malloc(len);
+	if (!pinfo)
+		{
+		CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
+		return NULL;
+		}
+	if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len))
+		{
+		CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
+		capi_addlasterror();
+		OPENSSL_free(pinfo);
+		return NULL;
+		}
+	return pinfo;
+	}
+
+static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo)
+	{
+	char *provname = NULL, *contname = NULL;
+	if (!pinfo)
+		{
+		BIO_printf(out, "  No Private Key\n");
+		return;
+		}
+	provname = wide_to_asc(pinfo->pwszProvName);
+	contname = wide_to_asc(pinfo->pwszContainerName);
+	if (!provname || !contname)
+		goto err;
+
+	BIO_printf(out, "  Private Key Info:\n");
+	BIO_printf(out, "    Provider Name:  %s, Provider Type %d\n", provname, pinfo->dwProvType);
+	BIO_printf(out, "    Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec);
+	err:
+	if (provname)
+		OPENSSL_free(provname);
+	if (contname)
+		OPENSSL_free(contname);
+	}
+
+char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
+	{
+	LPWSTR wfname;
+	DWORD dlen;
+
+	CAPI_trace(ctx, "capi_cert_get_fname\n");
+	if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
+		return NULL;
+	wfname = OPENSSL_malloc(dlen);
+	if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen))
+		{
+		char *fname = wide_to_asc(wfname);
+		OPENSSL_free(wfname);
+		return fname;
+		}
+	CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
+	capi_addlasterror();
+
+	OPENSSL_free(wfname);
+	return NULL;
+	}
+
+
+void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
+	{
+	X509 *x;
+	unsigned char *p;
+	unsigned long flags = ctx->dump_flags;
+	if (flags & CAPI_DMP_FNAME)
+		{
+		char *fname;
+		fname = capi_cert_get_fname(ctx, cert);
+		if (fname)
+			{
+			BIO_printf(out, "  Friendly Name \"%s\"\n", fname);
+			OPENSSL_free(fname);
+			}
+		else
+			BIO_printf(out, "  <No Friendly Name>\n");
+		}
+
+	p = cert->pbCertEncoded;
+	x = d2i_X509(NULL, &p, cert->cbCertEncoded);
+	if (!x)
+		BIO_printf(out, "  <Can't parse certificate>\n");
+	if (flags & CAPI_DMP_SUMMARY)
+		{
+		BIO_printf(out, "  Subject: ");
+		X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
+		BIO_printf(out, "\n  Issuer: ");
+		X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
+		BIO_printf(out, "\n");
+		}
+	if (flags & CAPI_DMP_FULL)
+		X509_print_ex(out, x, XN_FLAG_ONELINE,0);
+
+	if (flags & CAPI_DMP_PKEYINFO)
+		{
+		CRYPT_KEY_PROV_INFO *pinfo;
+		pinfo = capi_get_prov_info(ctx, cert);
+		capi_dump_prov_info(ctx, out, pinfo);
+		if (pinfo)
+			OPENSSL_free(pinfo);
+		}
+
+	if (flags & CAPI_DMP_PEM)
+		PEM_write_bio_X509(out, x);
+	X509_free(x);
+	}
+
+HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
+	{
+	HCERTSTORE hstore;
+
+	if (!storename)
+		storename = ctx->storename;
+	if (!storename)
+		storename = "MY";
+	CAPI_trace(ctx, "Opening certificate store %s\n", storename);
+
+	hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0, 
+				ctx->store_flags, storename);
+	if (!hstore)
+		{
+		CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
+		capi_addlasterror();
+		}
+	return hstore;
+	}
+
+int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
+	{
+	char *storename;
+	int idx;
+	int ret = 1;
+	HCERTSTORE hstore;
+	PCCERT_CONTEXT cert = NULL;
+
+	storename = ctx->storename;
+	if (!storename)
+		storename = "MY";
+	CAPI_trace(ctx, "Listing certs for store %s\n", storename);
+
+	hstore = capi_open_store(ctx, storename);
+	if (!hstore)
+		return 0;
+	if (id)
+		{
+		cert = capi_find_cert(ctx, id, hstore);
+		if (!cert)
+			{
+			ret = 0;
+			goto err;
+			}
+		capi_dump_cert(ctx, out, cert);
+		CertFreeCertificateContext(cert);
+		}
+	else
+		{
+		for(idx = 0;;idx++)
+			{
+			LPWSTR fname = NULL;
+			cert = CertEnumCertificatesInStore(hstore, cert);
+			if (!cert)
+				break;
+			BIO_printf(out, "Certificate %d\n", idx);
+			capi_dump_cert(ctx, out, cert);
+			}
+		}
+	err:
+	CertCloseStore(hstore, 0);
+	return ret;
+	}
+
+static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore)
+	{
+	PCCERT_CONTEXT cert = NULL;
+	char *fname = NULL;
+	int match;
+	switch(ctx->lookup_method)
+		{
+		case CAPI_LU_SUBSTR:
+			return CertFindCertificateInStore(hstore,
+					X509_ASN_ENCODING, 0,
+					CERT_FIND_SUBJECT_STR_A, id, NULL);
+		case CAPI_LU_FNAME:
+			for(;;)
+				{
+				cert = CertEnumCertificatesInStore(hstore, cert);
+				if (!cert)
+					return NULL;
+				fname = capi_cert_get_fname(ctx, cert);
+				if (fname)
+					{
+					if (strcmp(fname, id))
+						match = 0;
+					else
+						match = 1;
+					OPENSSL_free(fname);
+					if (match)
+						return cert;
+					}
+				}
+		default:
+			return NULL;
+		}
+	}
+
+static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)
+	{
+	CAPI_KEY *key;
+	key = OPENSSL_malloc(sizeof(CAPI_KEY));
+	CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n", 
+						contname, provname, ptype);
+	if (!CryptAcquireContextA(&key->hprov, contname, provname, ptype, 0))
+		{
+		CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
+		capi_addlasterror();
+		goto err;
+		}
+	if (!CryptGetUserKey(key->hprov, keyspec, &key->key))
+		{
+		CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
+		capi_addlasterror();
+		CryptReleaseContext(key->hprov, 0);
+		goto err;
+		}
+	key->keyspec = keyspec;
+	key->pcert = NULL;
+	return key;
+
+	err:
+	OPENSSL_free(key);
+	return NULL;
+	}
+
+static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
+	{
+	CAPI_KEY *key = NULL;
+	CRYPT_KEY_PROV_INFO *pinfo = NULL;
+	char *provname = NULL, *contname = NULL;
+	pinfo = capi_get_prov_info(ctx, cert);
+	if (!pinfo)
+		goto err;
+	provname = wide_to_asc(pinfo->pwszProvName);
+	contname = wide_to_asc(pinfo->pwszContainerName);
+	if (!provname || !contname)
+		goto err;
+	key = capi_get_key(ctx, contname, provname,
+				pinfo->dwProvType, pinfo->dwKeySpec);
+
+	err:
+	if (pinfo)
+		OPENSSL_free(pinfo);
+	if (provname)
+		OPENSSL_free(provname);
+	if (contname)
+		OPENSSL_free(contname);
+	return key;
+	}
+
+CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
+	{
+	PCCERT_CONTEXT cert;
+	HCERTSTORE hstore;
+	CAPI_KEY *key = NULL;
+	switch (ctx->lookup_method)
+		{
+		case CAPI_LU_SUBSTR:
+		case CAPI_LU_FNAME:
+		hstore = capi_open_store(ctx, NULL);
+		if (!hstore)
+			return NULL;
+		cert = capi_find_cert(ctx, id, hstore);
+		if (cert)
+			{
+			key = capi_get_cert_key(ctx, cert);
+			CertFreeCertificateContext(cert);
+			}
+		CertCloseStore(hstore, 0);
+		break;
+
+		case CAPI_LU_CONTNAME:
+		key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype,
+							ctx->keytype);
+		break;
+		}
+
+	return key;
+	}
+
+void capi_free_key(CAPI_KEY *key)
+	{
+	if (!key)
+		return;
+	CryptDestroyKey(key->key);
+	CryptReleaseContext(key->hprov, 0);
+	if (key->pcert)
+		CertFreeCertificateContext(key->pcert);
+	OPENSSL_free(key);
+	}
+
+
+/* Initialize a CAPI_CTX structure */
+
+static CAPI_CTX *capi_ctx_new()
+	{
+	CAPI_CTX *ctx;
+	ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
+	if (!ctx)
+		{
+		CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
+		return NULL;
+		}
+	ctx->cspname = NULL;
+	ctx->csptype = PROV_RSA_FULL;
+	ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME;
+	ctx->keytype = AT_KEYEXCHANGE;
+	ctx->storename = NULL;
+	ctx->ssl_client_store = NULL;
+	ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
+				CERT_STORE_READONLY_FLAG |
+				CERT_SYSTEM_STORE_CURRENT_USER;
+	ctx->lookup_method = CAPI_LU_SUBSTR;
+	ctx->debug_level = 0;
+	ctx->debug_file = NULL;
+	ctx->client_cert_select = cert_select_simple;
+	return ctx;
+	}
+
+static void capi_ctx_free(CAPI_CTX *ctx)
+	{
+	CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
+	if (!ctx)
+		return;
+	if (ctx->cspname)
+		OPENSSL_free(ctx->cspname);
+	if (ctx->debug_file)
+		OPENSSL_free(ctx->debug_file);
+	if (ctx->storename)
+		OPENSSL_free(ctx->storename);
+	if (ctx->ssl_client_store)
+		OPENSSL_free(ctx->ssl_client_store);
+	OPENSSL_free(ctx);
+	}
+
+static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check)
+	{
+	CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
+	if (check)
+		{
+		HCRYPTPROV hprov;
+		if (!CryptAcquireContextA(&hprov, NULL, pname, type,
+						CRYPT_VERIFYCONTEXT))
+			{
+			CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
+			capi_addlasterror();
+			return 0;
+			}
+		CryptReleaseContext(hprov, 0);
+		}
+	ctx->cspname = BUF_strdup(pname);
+	ctx->csptype = type;
+	return 1;
+	}
+
+static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
+	{
+	LPSTR pname;
+	DWORD type;
+	if (capi_get_provname(ctx, &pname, &type, idx) != 1)
+		return 0;
+	return capi_ctx_set_provname(ctx, pname, type, 0);
+	}
+
+static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
+	{
+	int i;
+	X509_NAME *nm;
+	/* Special case: empty list: match anything */
+	if (sk_X509_NAME_num(ca_dn) <= 0)
+		return 1;
+	for (i = 0; i < sk_X509_NAME_num(ca_dn); i++)
+		{
+		nm = sk_X509_NAME_value(ca_dn, i);
+		if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
+				return 1;
+		}
+	return 0;
+	}
+
+
+
+static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
+	STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
+	STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data)
+	{
+	STACK_OF(X509) *certs = NULL;
+	X509 *x;
+	char *storename;
+	const char *p;
+	int i, client_cert_idx;
+	HCERTSTORE hstore;
+	PCCERT_CONTEXT cert = NULL, excert = NULL;
+	CAPI_CTX *ctx;
+	CAPI_KEY *key;
+	ctx = ENGINE_get_ex_data(e, capi_idx);
+
+	*pcert = NULL;
+	*pkey = NULL;
+
+	storename = ctx->ssl_client_store;
+	if (!storename)
+		storename = "MY";
+
+	hstore = capi_open_store(ctx, storename);
+	if (!hstore)
+		return 0;
+	/* Enumerate all certificates collect any matches */
+	for(i = 0;;i++)
+		{
+		cert = CertEnumCertificatesInStore(hstore, cert);
+		if (!cert)
+			break;
+		p = cert->pbCertEncoded;
+		x = d2i_X509(NULL, &p, cert->cbCertEncoded);
+		if (!x)
+			{
+			CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
+			continue;
+			}
+		if (cert_issuer_match(ca_dn, x)
+			&& X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0))
+			{
+			key = capi_get_cert_key(ctx, cert);
+			if (!key)
+				{
+				X509_free(x);
+				continue;
+				}
+			/* Match found: attach extra data to it so
+			 * we can retrieve the key later.
+			 */
+			excert = CertDuplicateCertificateContext(cert);
+			key->pcert = excert;
+			X509_set_ex_data(x, cert_capi_idx, key);
+
+			if (!certs)
+				certs = sk_X509_new_null();
+
+			sk_X509_push(certs, x);
+			}
+		else
+			X509_free(x);
+
+		}
+
+	if (cert)
+		CertFreeCertificateContext(cert);
+	if (hstore)
+		CertCloseStore(hstore, 0);
+
+	if (!certs)
+		return 0;
+
+
+	/* Select the appropriate certificate */
+
+	client_cert_idx = ctx->client_cert_select(e, ssl, certs);
+
+	/* Set the selected certificate and free the rest */
+
+	for(i = 0; i < sk_X509_num(certs); i++)
+		{
+		x = sk_X509_value(certs, i);
+		if (i == client_cert_idx)
+			*pcert = x;
+		else
+			{
+			key = X509_get_ex_data(x, cert_capi_idx);
+			capi_free_key(key);
+			X509_free(x);
+			}
+		}
+
+	sk_X509_free(certs);
+
+	if (!*pcert)
+		return 0;
+
+	/* Setup key for selected certificate */
+
+	key = X509_get_ex_data(*pcert, cert_capi_idx);
+	*pkey = capi_get_pkey(e, key);
+	X509_set_ex_data(*pcert, cert_capi_idx, NULL);
+
+	return 1;
+
+	}
+
+
+/* Simple client cert selection function: always select first */
+
+static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
+	{
+	return 0;
+	}
+
+#ifdef OPENSSL_CAPIENG_DIALOG
+
+/* More complex cert selection function, using standard function
+ * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
+ */
+
+/* Definitions which are in cryptuiapi.h but this is not present in older
+ * versions of headers.
+ */
+
+#ifndef CRYPTUI_SELECT_LOCATION_COLUMN
+#define CRYPTUI_SELECT_LOCATION_COLUMN                   0x000000010
+#define CRYPTUI_SELECT_INTENDEDUSE_COLUMN                0x000000004
+#endif
+
+#define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
+#define dlg_prompt L"Select a certificate to use for authentication"
+#define dlg_columns	 CRYPTUI_SELECT_LOCATION_COLUMN \
+			|CRYPTUI_SELECT_INTENDEDUSE_COLUMN
+
+static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
+	{
+	X509 *x;
+	HCERTSTORE dstore;
+	PCCERT_CONTEXT cert;
+	CAPI_CTX *ctx;
+	CAPI_KEY *key;
+	HWND hwnd;
+	int i, idx = -1;
+	if (sk_X509_num(certs) == 1)
+		return 0;
+	ctx = ENGINE_get_ex_data(e, capi_idx);
+	/* Create an in memory store of certificates */
+	dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
+					CERT_STORE_CREATE_NEW_FLAG, NULL);
+	if (!dstore)
+		{
+		CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
+		capi_addlasterror();
+		goto err;
+		}
+	/* Add all certificates to store */
+	for(i = 0; i < sk_X509_num(certs); i++)
+		{
+		x = sk_X509_value(certs, i);
+		key = X509_get_ex_data(x, cert_capi_idx);
+
+		if (!CertAddCertificateContextToStore(dstore, key->pcert,
+						CERT_STORE_ADD_NEW, NULL))
+			{
+			CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
+			capi_addlasterror();
+			goto err;
+			}
+
+		}
+	hwnd = GetForegroundWindow();
+	if (!hwnd)
+		hwnd = GetActiveWindow();
+	if (!hwnd && ctx->getconswindow)
+		hwnd = ctx->getconswindow();
+	/* Call dialog to select one */
+	cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
+						dlg_columns, 0, NULL);
+
+	/* Find matching cert from list */
+	if (cert)
+		{
+		for(i = 0; i < sk_X509_num(certs); i++)
+			{
+			x = sk_X509_value(certs, i);
+			key = X509_get_ex_data(x, cert_capi_idx);
+			if (CertCompareCertificate(
+				X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
+					cert->pCertInfo,
+					key->pcert->pCertInfo))
+				{
+				idx = i;
+				break;
+				}
+			}
+		}
+
+	err:
+	if (dstore)
+		CertCloseStore(dstore, 0);
+	return idx;
+
+	}
+#endif
+
+#else /* !__COMPILE_CAPIENG */
+#include <openssl/engine.h>
+#ifndef OPENSSL_NO_DYNAMIC_ENGINE
+OPENSSL_EXPORT
+int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
+OPENSSL_EXPORT
+int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; }
+IMPLEMENT_DYNAMIC_CHECK_FN()
+#else
+void ENGINE_load_capi(void){}
+#endif
+#endif