Add CryptoAPI ENGINE from stable branch.

4 files changed, 1554 insertions, 4 deletions

diff --git a/engines/Makefile b/engines/Makefile
index 673d35caa9..7f77115cda 100644
--- a/engines/Makefile
+++ b/engines/Makefile
@@ -26,7 +26,7 @@ TEST=
 APPS=
 
 LIB=$(TOP)/libcrypto.a
-LIBNAMES= 4758cca aep atalla cswift gmp chil nuron sureware ubsec padlock
+LIBNAMES= 4758cca aep atalla cswift gmp chil nuron sureware ubsec padlock capi
 
 LIBSRC=	e_4758cca.c \
 	e_aep.c \
@@ -37,7 +37,8 @@ LIBSRC=	e_4758cca.c \
 	e_nuron.c \
 	e_sureware.c \
 	e_ubsec.c \
-	e_padlock.c
+	e_padlock.c \
+	e_capi.c
 LIBOBJ= e_4758cca.o \
 	e_aep.o \
 	e_atalla.o \
@@ -47,7 +48,8 @@ LIBOBJ= e_4758cca.o \
 	e_nuron.o \
 	e_sureware.o \
 	e_ubsec.o \
-	e_padlock.o
+	e_padlock.o \
+	e_capi.o
 
 SRC= $(LIBSRC)
 
@@ -60,7 +62,8 @@ HEADER=	e_4758cca_err.c e_4758cca_err.h \
 	e_chil_err.c e_chil_err.h \
 	e_nuron_err.c e_nuron_err.h \
 	e_sureware_err.c e_sureware_err.h \
-	e_ubsec_err.c e_ubsec_err.h
+	e_ubsec_err.c e_ubsec_err.h \
+	e_capi_err.c e_capi_err.h
 
 ALL=    $(GENERAL) $(SRC) $(HEADER)
 
diff --git a/engines/e_capi.c b/engines/e_capi.c
new file mode 100644
index 0000000000..deea50c723
--- /dev/null
+++ b/engines/e_capi.c
@@ -0,0 +1,1428 @@
+/* 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/engine.h>
+#include <openssl/rsa.h>
+#include <openssl/bn.h>
+#include <openssl/pem.h>
+
+#ifdef OPENSSL_SYS_WIN32
+#ifndef OPENSSL_NO_CAPIENG
+
+#ifndef _WIN32_WINNT
+#define _WIN32_WINNT 0x400
+#endif
+
+#include <windows.h>
+#include <wincrypt.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);
+	
+/* 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;
+	LPTSTR cspname;
+	DWORD csptype;
+	/* Certificate store name to use */
+	LPTSTR storename;
+
+/* Lookup string meanings in load_private_key */
+/* Substring of subject: uses "storename" */
+#define CAPI_LU_SUBSTR		0
+/* Friendly name: uses storename */
+#define CAPI_LU_FNAME		1
+/* Container name: uses cspname, keytype */
+#define CAPI_LU_CONTNAME	2
+	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;
+};
+
+
+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)
+
+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},
+
+	{0, NULL, NULL, 0}
+	};
+
+static int capi_idx = -1;
+static int rsa_capi_idx = -1;
+static int dsa_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_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);
+
+	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;
+
+	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
+	{
+	HCRYPTPROV hprov;
+	HCRYPTKEY key;
+	};
+
+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_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;
+	}
+
+static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
+	UI_METHOD *ui_method, void *callback_data)
+	{
+	EVP_PKEY *ret = NULL;
+	CAPI_CTX *ctx;
+	CAPI_KEY *key;
+	unsigned char *pubkey = NULL;
+	DWORD len;
+	BLOBHEADER *bh;
+	RSA *rkey = NULL;
+	DSA *dkey = NULL;
+	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;
+
+	len = 0;
+	if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))
+		{
+		CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, 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_LOAD_PRIVKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
+		capi_addlasterror();
+		goto err;
+		}
+
+	bh = (BLOBHEADER *)pubkey;
+	if (bh->bType != PUBLICKEYBLOB)
+		{
+		CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, 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_LOAD_PRIVKEY, 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_LOAD_PRIVKEY, 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_LOAD_PRIVKEY, 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);
+		if (key)
+			capi_free_key(key);
+		}
+
+	return ret;
+
+memerr:
+	CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, ERR_R_MALLOC_FAILURE);
+	goto err;
+
+	}
+
+/* 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(!CryptSignHash(hash, AT_KEYEXCHANGE, 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(!CryptSignHash(hash, AT_SIGNATURE, 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;
+	if (!wstr)
+		return NULL;
+	str = OPENSSL_malloc(wcslen(wstr) + 1);
+	if (!str)
+		{
+		CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
+		return NULL;
+		}
+	sprintf(str, "%S", wstr);
+	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 (!CryptEnumProviders(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 (!CryptEnumProviders(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;
+	LPTSTR 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 (!CryptAcquireContext(&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 = cap