text: /*
   * Copyright 1999 Ian Schmidt
   * Copyright 2001 Travis Michielsen
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  /***********************************************************************
   *
   *  TODO:
   *  - Reference counting
   *  - Thread-safing
   */
  
  #include "config.h"
  #include "wine/port.h"
  
  #include <time.h>
  #include <stdlib.h>
  #include <stdio.h>
  #include <sys/types.h>
  #ifdef HAVE_SYS_STAT_H
  # include <sys/stat.h>
  #endif
  #include <fcntl.h>
  #ifdef HAVE_UNISTD_H
  # include <unistd.h>
  #endif
  
  #include "ntstatus.h"
  #define WIN32_NO_STATUS
  #include "crypt.h"
  #include "winnls.h"
  #include "winreg.h"
  #include "rpc.h"
  #include "wine/debug.h"
  #include "wine/unicode.h"
  #include "winternl.h"
  
  WINE_DEFAULT_DEBUG_CHANNEL(crypt);
  
  static HWND crypt_hWindow;
  
  #define CRYPT_Alloc(size) (LocalAlloc(LMEM_ZEROINIT, size))
  #define CRYPT_Free(buffer) (LocalFree(buffer))
  
  static inline PWSTR CRYPT_GetProvKeyName(PCWSTR pProvName)
  {
  	static const WCHAR KEYSTR[] = {
                  'S','o','f','t','w','a','r','e','\\',
                  'M','i','c','r','o','s','o','f','t','\\',
                  'C','r','y','p','t','o','g','r','a','p','h','y','\\',
                  'D','e','f','a','u','l','t','s','\\',
                  'P','r','o','v','i','d','e','r','\\',0
  	};
  	PWSTR keyname;
  
  	keyname = CRYPT_Alloc((strlenW(KEYSTR) + strlenW(pProvName) +1)*sizeof(WCHAR));
  	if (keyname)
  	{
  		strcpyW(keyname, KEYSTR);
  		strcpyW(keyname + strlenW(KEYSTR), pProvName);
  	} else
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  	return keyname;
  }
  
  static inline PWSTR CRYPT_GetTypeKeyName(DWORD dwType, BOOL user)
  {
  	static const WCHAR MACHINESTR[] = {
                  'S','o','f','t','w','a','r','e','\\',
                  'M','i','c','r','o','s','o','f','t','\\',
                  'C','r','y','p','t','o','g','r','a','p','h','y','\\',
                  'D','e','f','a','u','l','t','s','\\',
                  'P','r','o','v','i','d','e','r',' ','T','y','p','e','s','\\',
                  'T','y','p','e',' ','X','X','X',0
  	};
  	static const WCHAR USERSTR[] = {
                  'S','o','f','t','w','a','r','e','\\',
                  'M','i','c','r','o','s','o','f','t','\\',
                  'C','r','y','p','t','o','g','r','a','p','h','y','\\',
                  'P','r','o','v','i','d','e','r',' ','T','y','p','e',' ','X','X','X',0
  	};
  	PWSTR keyname;
  	PWSTR ptr;
  
  	keyname = CRYPT_Alloc( ((user ? strlenW(USERSTR) : strlenW(MACHINESTR)) +1)*sizeof(WCHAR));
  	if (keyname)
  	{
  		user ? strcpyW(keyname, USERSTR) : strcpyW(keyname, MACHINESTR);
  		ptr = keyname + strlenW(keyname);
  		*(--ptr) = (dwType % 10) + '0';
  		*(--ptr) = ((dwType / 10) % 10) + '0';
  		*(--ptr) = (dwType / 100) + '0';
  	} else
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  	return keyname;
  }
  
  /* CRYPT_UnicodeTOANSI
   * wstr - unicode string
   * str - pointer to ANSI string
   * strsize - size of buffer pointed to by str or -1 if we have to do the allocation
   *
   * returns TRUE if unsuccessful, FALSE otherwise.
   * if wstr is NULL, returns TRUE and sets str to NULL! Value of str should be checked after call
   */
  static inline BOOL CRYPT_UnicodeToANSI(LPCWSTR wstr, LPSTR* str, int strsize)
  {
  	int count;
  
  	if (!wstr)
  	{
  		*str = NULL;
  		return TRUE;
  	}
  	count = WideCharToMultiByte(CP_ACP, 0, wstr, -1, NULL, 0, NULL, NULL);
  	if (strsize == -1)
  		*str = CRYPT_Alloc(count * sizeof(CHAR));
  	else
  		count = min( count, strsize );
  	if (*str)
  	{
  		WideCharToMultiByte(CP_ACP, 0, wstr, -1, *str, count, NULL, NULL);
  		return TRUE;
  	}
  	SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  	return FALSE;
  }
  
  /* CRYPT_ANSITOUnicode
   * str - ANSI string
   * wstr - pointer to unicode string
   * wstrsize - size of buffer pointed to by wstr or -1 if we have to do the allocation
   */
  static inline BOOL CRYPT_ANSIToUnicode(LPCSTR str, LPWSTR* wstr, int wstrsize)
  {
  	unsigned int wcount;
  
  	if (!str)
  	{
  		*wstr = NULL;
  		return TRUE;
  	}
  	wcount = MultiByteToWideChar(CP_ACP, 0, str, -1, NULL, 0);
  	if (wstrsize == -1)
  		*wstr = CRYPT_Alloc(wcount * sizeof(WCHAR));
  	else
  		wcount = min( wcount, wstrsize/sizeof(WCHAR) );
  	if (*wstr)
  	{
  		MultiByteToWideChar(CP_ACP, 0, str, -1, *wstr, wcount);
  		return TRUE;
  	}
  	SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  	return FALSE;
  }
  
  /* These next 2 functions are used by the VTableProvStruc structure */
  static BOOL CALLBACK CRYPT_VerifyImage(LPCSTR lpszImage, BYTE* pData)
  {
  	if (!lpszImage || !pData)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	FIXME("(%s, %p): not verifying image\n", lpszImage, pData);
  
  	return TRUE;
  }
  
  static BOOL CALLBACK CRYPT_ReturnhWnd(HWND *phWnd)
  {
  	if (!phWnd)
  		return FALSE;
  	*phWnd = crypt_hWindow;
  	return TRUE;
  }
  
  #define CRYPT_GetProvFunc(name) \
  	if ( !(provider->pFuncs->p##name = (void*)GetProcAddress(provider->hModule, #name)) ) goto error
  #define CRYPT_GetProvFuncOpt(name) \
  	provider->pFuncs->p##name = (void*)GetProcAddress(provider->hModule, #name)
  static PCRYPTPROV CRYPT_LoadProvider(PCWSTR pImage)
  {
  	PCRYPTPROV provider;
  	DWORD errorcode = ERROR_NOT_ENOUGH_MEMORY;
  
  	if ( !(provider = CRYPT_Alloc(sizeof(CRYPTPROV))) ) goto error;
  	if ( !(provider->pFuncs = CRYPT_Alloc(sizeof(PROVFUNCS))) ) goto error;
  	if ( !(provider->pVTable = CRYPT_Alloc(sizeof(VTableProvStruc))) ) goto error;
  	if ( !(provider->hModule = LoadLibraryW(pImage)) )
  	{
  		errorcode = (GetLastError() == ERROR_FILE_NOT_FOUND) ? NTE_PROV_DLL_NOT_FOUND : NTE_PROVIDER_DLL_FAIL;
  		FIXME("Failed to load dll %s\n", debugstr_w(pImage));
  		goto error;
  	}
  	provider->dwMagic = MAGIC_CRYPTPROV;
  	provider->refcount = 1;
  
  	errorcode = NTE_PROVIDER_DLL_FAIL;
  	CRYPT_GetProvFunc(CPAcquireContext);
  	CRYPT_GetProvFunc(CPCreateHash);
  	CRYPT_GetProvFunc(CPDecrypt);
  	CRYPT_GetProvFunc(CPDeriveKey);
  	CRYPT_GetProvFunc(CPDestroyHash);
  	CRYPT_GetProvFunc(CPDestroyKey);
  	CRYPT_GetProvFuncOpt(CPDuplicateHash);
  	CRYPT_GetProvFuncOpt(CPDuplicateKey);
  	CRYPT_GetProvFunc(CPEncrypt);
  	CRYPT_GetProvFunc(CPExportKey);
  	CRYPT_GetProvFunc(CPGenKey);
  	CRYPT_GetProvFunc(CPGenRandom);
  	CRYPT_GetProvFunc(CPGetHashParam);
  	CRYPT_GetProvFunc(CPGetKeyParam);
  	CRYPT_GetProvFunc(CPGetProvParam);
  	CRYPT_GetProvFunc(CPGetUserKey);
  	CRYPT_GetProvFunc(CPHashData);
  	CRYPT_GetProvFunc(CPHashSessionKey);
  	CRYPT_GetProvFunc(CPImportKey);
  	CRYPT_GetProvFunc(CPReleaseContext);
  	CRYPT_GetProvFunc(CPSetHashParam);
  	CRYPT_GetProvFunc(CPSetKeyParam);
  	CRYPT_GetProvFunc(CPSetProvParam);
  	CRYPT_GetProvFunc(CPSignHash);
  	CRYPT_GetProvFunc(CPVerifySignature);
  
  	/* FIXME: Not sure what the pbContextInfo field is for.
  	 *        Does it need memory allocation?
           */
  	provider->pVTable->Version = 3;
  	provider->pVTable->pFuncVerifyImage = (FARPROC)CRYPT_VerifyImage;
  	provider->pVTable->pFuncReturnhWnd = (FARPROC)CRYPT_ReturnhWnd;
  	provider->pVTable->dwProvType = 0;
  	provider->pVTable->pbContextInfo = NULL;
  	provider->pVTable->cbContextInfo = 0;
  	provider->pVTable->pszProvName = NULL;
  	return provider;
  
  error:
  	SetLastError(errorcode);
  	if (provider)
  	{
  		provider->dwMagic = 0;
  		if (provider->hModule)
  			FreeLibrary(provider->hModule);
  		CRYPT_Free(provider->pVTable);
  		CRYPT_Free(provider->pFuncs);
  		CRYPT_Free(provider);
  	}
  	return NULL;
  }
  #undef CRYPT_GetProvFunc
  #undef CRYPT_GetProvFuncOpt
  
  
  static void CRYPT_CreateMachineGuid(void)
  {
  	static const WCHAR cryptographyW[] = {
                  'S','o','f','t','w','a','r','e','\\',
                  'M','i','c','r','o','s','o','f','t','\\',
                  'C','r','y','p','t','o','g','r','a','p','h','y',0 };
  	static const WCHAR machineGuidW[] = {
  		'M','a','c','h','i','n','e','G','u','i','d',0 };
  	LONG r;
  	HKEY key;
  
  	r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, cryptographyW, 0, KEY_ALL_ACCESS,
  			  &key);
  	if (!r)
  	{
  		DWORD size;
  
  		r = RegQueryValueExW(key, machineGuidW, NULL, NULL, NULL, &size);
  		if (r == ERROR_FILE_NOT_FOUND)
  		{
  			static const WCHAR rpcrt4[] = {
  				'r','p','c','r','t','4',0 };
  			HMODULE lib = LoadLibraryW(rpcrt4);
  
  			if (lib)
  			{
  				RPC_STATUS (RPC_ENTRY *pUuidCreate)(UUID *);
  				UUID uuid;
                                  WCHAR buf[37];
                                  RPC_STATUS rs;
                                  static const WCHAR uuidFmt[] = {
                                      '%','0','8','x','-','%','0','4','x','-',
                                      '%','0','4','x','-','%','0','2','x',
                                      '%','0','2','x','-','%','0','2','x',
                                      '%','0','2','x','%','0','2','x',
                                      '%','0','2','x','%','0','2','x',
                                      '%','0','2','x',0 };
  
                                  pUuidCreate = (void *)GetProcAddress(lib, "UuidCreate");
                                  rs = pUuidCreate(&uuid);
                                  if (rs == S_OK)
                                  {
                                      sprintfW(buf, uuidFmt,
                                               uuid.Data1, uuid.Data2, uuid.Data3,
                                               uuid.Data4[0], uuid.Data4[1],
                                               uuid.Data4[2], uuid.Data4[3],
                                               uuid.Data4[4], uuid.Data4[5],
                                               uuid.Data4[6], uuid.Data4[7] );
                                      RegSetValueExW(key, machineGuidW, 0, REG_SZ,
                                                     (const BYTE *)buf,
                                                     (lstrlenW(buf)+1)*sizeof(WCHAR));
                                  }
  				FreeLibrary(lib);
  			}
  		}
  		RegCloseKey(key);
  	}
  }
  
  /******************************************************************************
   * CryptAcquireContextW (ADVAPI32.@)
   *
   * Acquire a crypto provider context handle.
   *
   * PARAMS
   *  phProv       [O] Pointer to HCRYPTPROV for the output.
   *  pszContainer [I] Key Container Name
   *  pszProvider  [I] Cryptographic Service Provider Name
   *  dwProvType   [I] Crypto provider type to get a handle.
   *  dwFlags      [I] flags for the operation
   *
   * RETURNS 
   *  TRUE on success, FALSE on failure.
   */
  BOOL WINAPI CryptAcquireContextW (HCRYPTPROV *phProv, LPCWSTR pszContainer,
  		LPCWSTR pszProvider, DWORD dwProvType, DWORD dwFlags)
  {
  	PCRYPTPROV pProv = NULL;
  	HKEY key;
  	PWSTR imagepath = NULL, keyname = NULL, provname = NULL, temp = NULL;
  	PSTR provnameA = NULL, pszContainerA = NULL;
  	DWORD keytype, type, len;
  	ULONG r;
  	static const WCHAR nameW[] = {'N','a','m','e',0};
  	static const WCHAR typeW[] = {'T','y','p','e',0};
  	static const WCHAR imagepathW[] = {'I','m','a','g','e',' ','P','a','t','h',0};
  
  	TRACE("(%p, %s, %s, %d, %08x)\n", phProv, debugstr_w(pszContainer),
  		debugstr_w(pszProvider), dwProvType, dwFlags);
  
  	if (dwProvType < 1 || dwProvType > MAXPROVTYPES)
  	{
  		SetLastError(NTE_BAD_PROV_TYPE);
  		return FALSE;
  	}
  	
  	if (!phProv)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	/* Make sure the MachineGuid value exists */
  	CRYPT_CreateMachineGuid();
  
  	if (!pszProvider || !*pszProvider)
  	{
  		/* No CSP name specified so try the user default CSP first
  		 * then try the machine default CSP
  		 */
  		if ( !(keyname = CRYPT_GetTypeKeyName(dwProvType, TRUE)) ) {
  			TRACE("No provider registered for crypto provider type %d.\n", dwProvType);
  			SetLastError(NTE_PROV_TYPE_NOT_DEF);
  			return FALSE;
  		}
  		if (RegOpenKeyW(HKEY_CURRENT_USER, keyname, &key))
  		{
  			CRYPT_Free(keyname);
  			if ( !(keyname = CRYPT_GetTypeKeyName(dwProvType, FALSE)) ) {
  				TRACE("No type registered for crypto provider type %d.\n", dwProvType);
  				RegCloseKey(key);
  				SetLastError(NTE_PROV_TYPE_NOT_DEF);
  				goto error;
  			}
  			if (RegOpenKeyW(HKEY_LOCAL_MACHINE, keyname, &key)) {
  				TRACE("Did not find registry entry of crypto provider for %s.\n", debugstr_w(keyname));
  				CRYPT_Free(keyname);
  				RegCloseKey(key);
  				SetLastError(NTE_PROV_TYPE_NOT_DEF);
  				goto error;
  			}
  		}
  		CRYPT_Free(keyname);
  		r = RegQueryValueExW(key, nameW, NULL, &keytype, NULL, &len);
  		if( r != ERROR_SUCCESS || !len || keytype != REG_SZ)
  		{
  			TRACE("error %d reading size of 'Name' from registry\n", r );
  			RegCloseKey(key);
  			SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
  			goto error;
  		}
  		if(!(provname = CRYPT_Alloc(len)))
  		{
  			RegCloseKey(key);
  			SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  			goto error;
  		}
  		r = RegQueryValueExW(key, nameW, NULL, NULL, (LPBYTE)provname, &len);
  		if( r != ERROR_SUCCESS )
  		{
  			TRACE("error %d reading 'Name' from registry\n", r );
  			RegCloseKey(key);
  			SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
  			goto error;
  		}
  		RegCloseKey(key);
  	} else {
  		if ( !(provname = CRYPT_Alloc((strlenW(pszProvider) +1)*sizeof(WCHAR))) )
  		{
  			SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  			goto error;
  		}
  		strcpyW(provname, pszProvider);
  	}
  
  	keyname = CRYPT_GetProvKeyName(provname);
  	r = RegOpenKeyW(HKEY_LOCAL_MACHINE, keyname, &key);
  	CRYPT_Free(keyname);
  	if (r != ERROR_SUCCESS)
  	{
  		SetLastError(NTE_KEYSET_NOT_DEF);
  		goto error;
  	}
  	len = sizeof(DWORD);
  	r = RegQueryValueExW(key, typeW, NULL, NULL, (BYTE*)&type, &len);
  	if (r != ERROR_SUCCESS)
  	{
  		SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
  		goto error;
  	}
  	if (type != dwProvType)
  	{
  		TRACE("Crypto provider has wrong type (%d vs expected %d).\n", type, dwProvType);
  		SetLastError(NTE_PROV_TYPE_NO_MATCH);
  		goto error;
  	}
  
  	r = RegQueryValueExW(key, imagepathW, NULL, &keytype, NULL, &len);
  	if ( r != ERROR_SUCCESS || keytype != REG_SZ)
  	{
  		TRACE("error %d reading size of 'Image Path' from registry\n", r );
  		RegCloseKey(key);
  		SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
  		goto error;
  	}
  	if (!(temp = CRYPT_Alloc(len)))
  	{
  		RegCloseKey(key);
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		goto error;
  	}
  	r = RegQueryValueExW(key, imagepathW, NULL, NULL, (LPBYTE)temp, &len);
  	if( r != ERROR_SUCCESS )
  	{
  		TRACE("error %d reading 'Image Path' from registry\n", r );
  		RegCloseKey(key);
  		SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
  		goto error;
  	}
  	RegCloseKey(key);
  	len = ExpandEnvironmentStringsW(temp, NULL, 0);
  	if ( !(imagepath = CRYPT_Alloc(len*sizeof(WCHAR))) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		goto error;
  	}
  	if (!ExpandEnvironmentStringsW(temp, imagepath, len))
  	{
  		/* ExpandEnvironmentStrings will call SetLastError */
  		goto error;
  	}
  	pProv = CRYPT_LoadProvider(imagepath);
  	if (!pProv) {
  		/* CRYPT_LoadProvider calls SetLastError */
  		goto error;
  	}
  	pProv->pVTable->dwProvType = dwProvType;
  	if(!CRYPT_UnicodeToANSI(provname, &provnameA, -1))
  	{
  		/* CRYPT_UnicodeToANSI calls SetLastError */
  		goto error;
  	}
  	pProv->pVTable->pszProvName = provnameA;
  	if(!CRYPT_UnicodeToANSI(pszContainer, &pszContainerA, -1))
  	{
  		/* CRYPT_UnicodeToANSI calls SetLastError */
  		goto error;
  	}
  	if (pProv->pFuncs->pCPAcquireContext(&pProv->hPrivate, pszContainerA, dwFlags, pProv->pVTable))
  	{
  		/* MSDN: When this flag is set, the value returned in phProv is undefined,
  		 *       and thus, the CryptReleaseContext function need not be called afterwards.
  		 *       Therefore, we must clean up everything now.
  		 */
  		if (dwFlags & CRYPT_DELETEKEYSET)
  		{
  			pProv->dwMagic = 0;
  			FreeLibrary(pProv->hModule);
  			CRYPT_Free(provnameA);
  			CRYPT_Free(pProv->pVTable);
  			CRYPT_Free(pProv->pFuncs);
  			CRYPT_Free(pProv);
  		} else {
  			*phProv = (HCRYPTPROV)pProv;
  		}
  		CRYPT_Free(pszContainerA);
  		CRYPT_Free(provname);
  		CRYPT_Free(temp);
  		CRYPT_Free(imagepath);
  		return TRUE;
  	}
  	/* FALLTHROUGH TO ERROR IF FALSE - CSP internal error! */
  error:
  	if (pProv)
  	{
  		pProv->dwMagic = 0;
  		if (pProv->hModule)
  			FreeLibrary(pProv->hModule);
  		CRYPT_Free(pProv->pVTable);
  		CRYPT_Free(pProv->pFuncs);
  		CRYPT_Free(pProv);
  	}
  	CRYPT_Free(pszContainerA);
  	CRYPT_Free(provnameA);
  	CRYPT_Free(provname);
  	CRYPT_Free(temp);
  	CRYPT_Free(imagepath);
  	return FALSE;
  }
  
  /******************************************************************************
   * CryptAcquireContextA (ADVAPI32.@)
   *
   * See CryptAcquireContextW.
   */
  BOOL WINAPI CryptAcquireContextA (HCRYPTPROV *phProv, LPCSTR pszContainer,
  		LPCSTR pszProvider, DWORD dwProvType, DWORD dwFlags)
  {
  	PWSTR pProvider = NULL, pContainer = NULL;
  	BOOL ret = FALSE;
  
  	TRACE("(%p, %s, %s, %d, %08x)\n", phProv, pszContainer,
  		pszProvider, dwProvType, dwFlags);
  
  	if ( !CRYPT_ANSIToUnicode(pszContainer, &pContainer, -1) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  	if ( !CRYPT_ANSIToUnicode(pszProvider, &pProvider, -1) )
  	{
  		CRYPT_Free(pContainer);
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  
  	ret = CryptAcquireContextW(phProv, pContainer, pProvider, dwProvType, dwFlags);
  
  	CRYPT_Free(pContainer);
  	CRYPT_Free(pProvider);
  
  	return ret;
  }
  
  /******************************************************************************
   * CryptContextAddRef (ADVAPI32.@)
   *
   * Increases reference count of a cryptographic service provider handle
   * by one.
   *
   * PARAMS
   *  hProv       [I] Handle to the CSP whose reference is being incremented.
   *  pdwReserved [IN] Reserved for future use and must be NULL.
   *  dwFlags     [I] Reserved for future use and must be NULL.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptContextAddRef (HCRYPTPROV hProv, DWORD *pdwReserved, DWORD dwFlags)
  {
  	PCRYPTPROV pProv = (PCRYPTPROV)hProv;	
  
  	TRACE("(0x%lx, %p, %08x)\n", hProv, pdwReserved, dwFlags);
  
  	if (!pProv)
  	{
  		SetLastError(NTE_BAD_UID);
  		return FALSE;
  	}
  
  	if (pProv->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	pProv->refcount++;
  	return TRUE;
  }
  
  /******************************************************************************
   * CryptReleaseContext (ADVAPI32.@)
   *
   * Releases the handle of a CSP.  Reference count is decreased.
   *
   * PARAMS
   *  hProv   [I] Handle of a CSP.
   *  dwFlags [I] Reserved for future use and must be NULL.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptReleaseContext (HCRYPTPROV hProv, ULONG_PTR dwFlags)
  {
  	PCRYPTPROV pProv = (PCRYPTPROV)hProv;
  	BOOL ret = TRUE;
  
  	TRACE("(0x%lx, %08lx)\n", hProv, dwFlags);
  
  	if (!pProv)
  	{
  		SetLastError(NTE_BAD_UID);
  		return FALSE;
  	}
  
  	if (pProv->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	pProv->refcount--;
  	if (pProv->refcount <= 0) 
  	{
  		ret = pProv->pFuncs->pCPReleaseContext(pProv->hPrivate, dwFlags);
  		pProv->dwMagic = 0;
  		FreeLibrary(pProv->hModule);
  #if 0
  		CRYPT_Free(pProv->pVTable->pContextInfo);
  #endif
  		CRYPT_Free(pProv->pVTable->pszProvName);
  		CRYPT_Free(pProv->pVTable);
  		CRYPT_Free(pProv->pFuncs);
  		CRYPT_Free(pProv);
  	}
  	return ret;
  }
  
  /******************************************************************************
   * CryptGenRandom (ADVAPI32.@)
   *
   * Fills a buffer with cryptographically random bytes.
   *
   * PARAMS
   *  hProv    [I] Handle of a CSP.
   *  dwLen    [I] Number of bytes to generate.
   *  pbBuffer [I/O] Buffer to contain random bytes.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   *
   * NOTES
   *  pdBuffer must be at least dwLen bytes long.
   */
  BOOL WINAPI CryptGenRandom (HCRYPTPROV hProv, DWORD dwLen, BYTE *pbBuffer)
  {
  	PCRYPTPROV prov = (PCRYPTPROV)hProv;
  
  	TRACE("(0x%lx, %d, %p)\n", hProv, dwLen, pbBuffer);
  
  	if (!hProv)
  	{
  		SetLastError(ERROR_INVALID_HANDLE);
  		return FALSE;
  	}
  
  	if (prov->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	return prov->pFuncs->pCPGenRandom(prov->hPrivate, dwLen, pbBuffer);
  }
  
  /******************************************************************************
   * CryptCreateHash (ADVAPI32.@)
   *
   * Initiates the hashing of a stream of data.
   *
   * PARAMS
   *  hProv   [I] Handle of a CSP.
   *  Algid   [I] Identifies the hash algorithm to use.
   *  hKey    [I] Key for the hash (if required).
   *  dwFlags [I] Reserved for future use and must be NULL.
   *  phHash  [O] Address of the future handle to the new hash object.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   *
   * NOTES
   *  If the algorithm is a keyed hash, hKey is the key.
   */
  BOOL WINAPI CryptCreateHash (HCRYPTPROV hProv, ALG_ID Algid, HCRYPTKEY hKey,
  		DWORD dwFlags, HCRYPTHASH *phHash)
  {
  	PCRYPTPROV prov = (PCRYPTPROV)hProv;
  	PCRYPTKEY key = (PCRYPTKEY)hKey;
  	PCRYPTHASH hash;
  
  	TRACE("(0x%lx, 0x%x, 0x%lx, %08x, %p)\n", hProv, Algid, hKey, dwFlags, phHash);
  
  	if (!prov)
  	{
  		SetLastError(ERROR_INVALID_HANDLE);
  		return FALSE;
  	}
  	if (!phHash || prov->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  	if (dwFlags)
  	{
  		SetLastError(NTE_BAD_FLAGS);
  		return FALSE;
  	}
  	if ( !(hash = CRYPT_Alloc(sizeof(CRYPTHASH))) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  
  	hash->pProvider = prov;
  
  	if (prov->pFuncs->pCPCreateHash(prov->hPrivate, Algid,
  			key ? key->hPrivate : 0, 0, &hash->hPrivate))
          {
              *phHash = (HCRYPTHASH)hash;
              return TRUE;
          }
  
  	/* CSP error! */
  	CRYPT_Free(hash);
  	*phHash = 0;
  	return FALSE;
  }
  
  /******************************************************************************
   * CryptDecrypt (ADVAPI32.@)
   *
   * Decrypts data encrypted by CryptEncrypt.
   *
   * PARAMS
   *  hKey       [I] Handle to the decryption key.
   *  hHash      [I] Handle to a hash object.
   *  Final      [I] TRUE if this is the last section to be decrypted.
   *  dwFlags    [I] Reserved for future use. Can be CRYPT_OAEP.
   *  pbData     [I/O] Buffer that holds the encrypted data. Holds decrypted
   *                   data on return
   *  pdwDataLen [I/O] Length of pbData before and after the call.
   *
   *  RETURNS
   *   Success: TRUE
   *   Failure: FALSE
   */
  BOOL WINAPI CryptDecrypt (HCRYPTKEY hKey, HCRYPTHASH hHash, BOOL Final,
  		DWORD dwFlags, BYTE *pbData, DWORD *pdwDataLen)
  {
  	PCRYPTPROV prov;
  	PCRYPTKEY key = (PCRYPTKEY)hKey;
  	PCRYPTHASH hash = (PCRYPTHASH)hHash;
  
  	TRACE("(0x%lx, 0x%lx, %d, %08x, %p, %p)\n", hKey, hHash, Final, dwFlags, pbData, pdwDataLen);
  
  	if (!key || !pbData || !pdwDataLen || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = key->pProvider;
  	return prov->pFuncs->pCPDecrypt(prov->hPrivate, key->hPrivate, hash ? hash->hPrivate : 0,
  			Final, dwFlags, pbData, pdwDataLen);
  }
  
  /******************************************************************************
   * CryptDeriveKey (ADVAPI32.@)
   *
   * Generates session keys derived from a base data value.
   *
   * PARAMS
   *  hProv     [I] Handle to a CSP.
   *  Algid     [I] Identifies the symmetric encryption algorithm to use.
   *  hBaseData [I] Handle to a hash object.
   *  dwFlags   [I] Type of key to generate.
   *  phKey     [I/O] Address of the newly generated key.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptDeriveKey (HCRYPTPROV hProv, ALG_ID Algid, HCRYPTHASH hBaseData,
  		DWORD dwFlags, HCRYPTKEY *phKey)
  {
  	PCRYPTPROV prov = (PCRYPTPROV)hProv;
  	PCRYPTHASH hash = (PCRYPTHASH)hBaseData;
  	PCRYPTKEY key;
  
  	TRACE("(0x%lx, 0x%08x, 0x%lx, 0x%08x, %p)\n", hProv, Algid, hBaseData, dwFlags, phKey);
  
  	if (!prov || !hash)
  	{
  		SetLastError(ERROR_INVALID_HANDLE);
  		return FALSE;
  	}
  	if (!phKey || prov->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  	if ( !(key = CRYPT_Alloc(sizeof(CRYPTKEY))) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  
  	key->pProvider = prov;
  	if (prov->pFuncs->pCPDeriveKey(prov->hPrivate, Algid, hash->hPrivate, dwFlags, &key->hPrivate))
          {
              *phKey = (HCRYPTKEY)key;
              return TRUE;
          }
  
  	/* CSP error! */
  	CRYPT_Free(key);
  	*phKey = 0;
  	return FALSE;
  }
  
  /******************************************************************************
   * CryptDestroyHash (ADVAPI32.@)
   *
   * Destroys the hash object referenced by hHash.
   *
   * PARAMS
   *  hHash [I] Handle of the hash object to be destroyed.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptDestroyHash (HCRYPTHASH hHash)
  {
  	PCRYPTHASH hash = (PCRYPTHASH)hHash;
  	PCRYPTPROV prov;
  	BOOL ret;
  
  	TRACE("(0x%lx)\n", hHash);
  
  	if (!hash)
  	{
  		SetLastError(ERROR_INVALID_HANDLE);
  		return FALSE;
  	}
  
  	if (!hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = hash->pProvider;
  	ret = prov->pFuncs->pCPDestroyHash(prov->hPrivate, hash->hPrivate);
  	CRYPT_Free(hash);
  	return ret;
  }
  
  /******************************************************************************
   * CryptDestroyKey (ADVAPI32.@)
   *
   * Releases the handle referenced by hKey.
   *
   * PARAMS
   *  hKey [I] Handle of the key to be destroyed.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptDestroyKey (HCRYPTKEY hKey)
  {
  	PCRYPTKEY key = (PCRYPTKEY)hKey;
  	PCRYPTPROV prov;
  	BOOL ret;
  
  	TRACE("(0x%lx)\n", hKey);
  
  	if (!key)
  	{
  		SetLastError(ERROR_INVALID_HANDLE);
  		return FALSE;
  	}
  
  	if (!key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = key->pProvider;
  	ret = prov->pFuncs->pCPDestroyKey(prov->hPrivate, key->hPrivate);
  	CRYPT_Free(key);
  	return ret;
  }
  
  /******************************************************************************
   * CryptDuplicateHash (ADVAPI32.@)
   *
   * Duplicates a hash.
   *
   * PARAMS
   *  hHash       [I] Handle to the hash to be copied.
   *  pdwReserved [I] Reserved for future use and must be zero.
   *  dwFlags     [I] Reserved for future use and must be zero.
   *  phHash      [O] Address of the handle to receive the copy.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptDuplicateHash (HCRYPTHASH hHash, DWORD *pdwReserved,
  		DWORD dwFlags, HCRYPTHASH *phHash)
  {
  	PCRYPTPROV prov;
  	PCRYPTHASH orghash, newhash;
  
  	TRACE("(0x%lx, %p, %08x, %p)\n", hHash, pdwReserved, dwFlags, phHash);
  
  	orghash = (PCRYPTHASH)hHash;
  	if (!orghash || pdwReserved || !phHash || !orghash->pProvider || 
  		orghash->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = orghash->pProvider;
  	if (!prov->pFuncs->pCPDuplicateHash)
  	{
  		SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
  		return FALSE;
  	}
  
  	if ( !(newhash = CRYPT_Alloc(sizeof(CRYPTHASH))) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  
  	newhash->pProvider = prov;
  	if (prov->pFuncs->pCPDuplicateHash(prov->hPrivate, orghash->hPrivate, pdwReserved, dwFlags, &newhash->hPrivate))
  	{
  		*phHash = (HCRYPTHASH)newhash;
  		return TRUE;
  	}
  	CRYPT_Free(newhash);
  	return FALSE;
  }
  
  /******************************************************************************
   * CryptDuplicateKey (ADVAPI32.@)
   *
   * Duplicate a key and the key's state.
   *
   * PARAMS
   *  hKey        [I] Handle of the key to copy.
   *  pdwReserved [I] Reserved for future use and must be NULL.
   *  dwFlags     [I] Reserved for future use and must be zero.
   *  phKey       [I] Address of the handle to the duplicated key.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptDuplicateKey (HCRYPTKEY hKey, DWORD *pdwReserved, DWORD dwFlags, HCRYPTKEY *phKey)
  {
  	PCRYPTPROV prov;
  	PCRYPTKEY orgkey, newkey;
  
  	TRACE("(0x%lx, %p, %08x, %p)\n", hKey, pdwReserved, dwFlags, phKey);
  
  	orgkey = (PCRYPTKEY)hKey;
  	if (!orgkey || pdwReserved || !phKey || !orgkey->pProvider || 
  		orgkey->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = orgkey->pProvider;
  	if (!prov->pFuncs->pCPDuplicateKey)
  	{
  		SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
  		return FALSE;
  	}
  
  	if ( !(newkey = CRYPT_Alloc(sizeof(CRYPTKEY))) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  
  	newkey->pProvider = prov;
  	if (prov->pFuncs->pCPDuplicateKey(prov->hPrivate, orgkey->hPrivate, pdwReserved, dwFlags, &newkey->hPrivate))
  	{
  		*phKey = (HCRYPTKEY)newkey;
  		return TRUE;
  	}
  	CRYPT_Free(newkey);
  	return FALSE;
  }
  
  /******************************************************************************
   * CryptEncrypt (ADVAPI32.@)
   *
   * Encrypts data.
   *
   * PARAMS
   *  hKey       [I] Handle to the encryption key.
   *  hHash      [I] Handle to a hash object.
   *  Final      [I] TRUE if this is the last section to encrypt.
   *  dwFlags    [I] Can be CRYPT_OAEP.
   *  pbData     [I/O] Data to be encrypted. Contains encrypted data after call.
   *  pdwDataLen [I/O] Length of the data to encrypt. Contains the length of the
   *                   encrypted data after call.
   *  dwBufLen   [I] Length of the input pbData buffer.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   *
   *  NOTES
   *   If pbData is NULL, CryptEncrypt determines stores the number of bytes
   *   required for the returned data in pdwDataLen.
   */
  BOOL WINAPI CryptEncrypt (HCRYPTKEY hKey, HCRYPTHASH hHash, BOOL Final,
  		DWORD dwFlags, BYTE *pbData, DWORD *pdwDataLen, DWORD dwBufLen)
  {
  	PCRYPTPROV prov;
  	PCRYPTKEY key = (PCRYPTKEY)hKey;
  	PCRYPTHASH hash = (PCRYPTHASH)hHash;
  
  	TRACE("(0x%lx, 0x%lx, %d, %08x, %p, %p, %d)\n", hKey, hHash, Final, dwFlags, pbData, pdwDataLen, dwBufLen);
  
  	if (!key || !pdwDataLen || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = key->pProvider;
  	return prov->pFuncs->pCPEncrypt(prov->hPrivate, key->hPrivate, hash ? hash->hPrivate : 0,
  			Final, dwFlags, pbData, pdwDataLen, dwBufLen);
  }
  
  /******************************************************************************
   * CryptEnumProvidersW (ADVAPI32.@)
   *
   * Returns the next available CSP.
   *
   * PARAMS
   *  dwIndex     [I] Index of the next provider to be enumerated.
   *  pdwReserved [I] Reserved for future use and must be NULL.
   *  dwFlags     [I] Reserved for future use and must be zero.
   *  pdwProvType [O] DWORD designating the type of the provider.
   *  pszProvName [O] Buffer that receives data from the provider.
   *  pcbProvName [I/O] Specifies the size of pszProvName. Contains the number
   *                    of bytes stored in the buffer on return.
   *
   *  RETURNS
   *   Success: TRUE
   *   Failure: FALSE
   *
   *  NOTES
   *   If pszProvName is NULL, CryptEnumProvidersW sets the size of the name
   *   for memory allocation purposes.
   */
  BOOL WINAPI CryptEnumProvidersW (DWORD dwIndex, DWORD *pdwReserved,
  		DWORD dwFlags, DWORD *pdwProvType, LPWSTR pszProvName, DWORD *pcbProvName)
  {
  	HKEY hKey;
  	static const WCHAR providerW[] = {
                  'S','o','f','t','w','a','r','e','\\',
                  'M','i','c','r','o','s','o','f','t','\\',
                  'C','r','y','p','t','o','g','r','a','p','h','y','\\',
                  'D','e','f','a','u','l','t','s','\\',
                  'P','r','o','v','i','d','e','r',0
          };
  	static const WCHAR typeW[] = {'T','y','p','e',0};
  
  	TRACE("(%d, %p, %d, %p, %p, %p)\n", dwIndex, pdwReserved, dwFlags,
  			pdwProvType, pszProvName, pcbProvName);
  
  	if (pdwReserved || !pcbProvName)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  	if (dwFlags)
  	{
  		SetLastError(NTE_BAD_FLAGS);
  		return FALSE;
  	}
  
  	if (RegOpenKeyW(HKEY_LOCAL_MACHINE, providerW, &hKey))
  	{
  		SetLastError(NTE_FAIL);
  		return FALSE;
  	}
  
  	if (!pszProvName)
  	{
  		DWORD numkeys;
  		WCHAR *provNameW;
  		
  		RegQueryInfoKeyW(hKey, NULL, NULL, NULL, &numkeys, pcbProvName,
  				 NULL, NULL, NULL, NULL, NULL, NULL);
  		
  		if (!(provNameW = CRYPT_Alloc(*pcbProvName * sizeof(WCHAR))))
  		{
  			SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  			return FALSE;
  		}
  
  		RegEnumKeyExW(hKey, dwIndex, provNameW, pcbProvName, NULL, NULL, NULL, NULL);
  		CRYPT_Free(provNameW);
  		(*pcbProvName)++;
  		*pcbProvName *= sizeof(WCHAR);
  
  		if (dwIndex >= numkeys)
  		{
  			SetLastError(ERROR_NO_MORE_ITEMS);
  			return FALSE;
  		}
  	} else {
  		DWORD size = sizeof(DWORD);
  		DWORD result;
  		HKEY subkey;
  		
  		result = RegEnumKeyW(hKey, dwIndex, pszProvName, *pcbProvName / sizeof(WCHAR));
  		if (result)
  		{
  			SetLastError(result);
  			return FALSE;
  		}
  		if (RegOpenKeyW(hKey, pszProvName, &subkey))
  			return FALSE;
  		if (RegQueryValueExW(subkey, typeW, NULL, NULL, (BYTE*)pdwProvType, &size))
  			return FALSE;
  		RegCloseKey(subkey);
  	}
  	RegCloseKey(hKey);
  	return TRUE;
  }
  
  /******************************************************************************
   * CryptEnumProvidersA (ADVAPI32.@)
   *
   * See CryptEnumProvidersW.
   */
  BOOL WINAPI CryptEnumProvidersA (DWORD dwIndex, DWORD *pdwReserved,
  		DWORD dwFlags, DWORD *pdwProvType, LPSTR pszProvName, DWORD *pcbProvName)
  {
  	PWSTR str = NULL;
  	DWORD bufsize;
  	BOOL ret; /* = FALSE; */
  
  	TRACE("(%d, %p, %08x, %p, %p, %p)\n", dwIndex, pdwReserved, dwFlags,
  			pdwProvType, pszProvName, pcbProvName);
  
  	if(!CryptEnumProvidersW(dwIndex, pdwReserved, dwFlags, pdwProvType, NULL, &bufsize))
  		return FALSE;
  	if ( pszProvName && !(str = CRYPT_Alloc(bufsize)) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  	ret = CryptEnumProvidersW(dwIndex, pdwReserved, dwFlags, pdwProvType, str, &bufsize);
  	if (str)
  		CRYPT_UnicodeToANSI(str, &pszProvName, *pcbProvName);
  	*pcbProvName = bufsize / sizeof(WCHAR);  /* FIXME: not correct */
  	if (str)
  	{
  		CRYPT_Free(str);
  		if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
  		{
  			SetLastError(ERROR_MORE_DATA);
  			return FALSE;
  		}
  	}
  	return ret;
  }
  
  /******************************************************************************
   * CryptEnumProviderTypesW (ADVAPI32.@)
   *
   * Retrieves the next type of CSP supported.
   *
   * PARAMS
   *  dwIndex     [I] Index of the next provider to be enumerated.
   *  pdwReserved [I] Reserved for future use and must be NULL.
   *  dwFlags     [I] Reserved for future use and must be zero.
   *  pdwProvType [O] DWORD designating the type of the provider.
   *  pszTypeName [O] Buffer that receives data from the provider type.
   *  pcbTypeName [I/O] Specifies the size of pszTypeName. Contains the number
   *                    of bytes stored in the buffer on return.
   *
   *  RETURNS
   *   Success: TRUE
   *   Failure: FALSE
   *
   *  NOTES
   *   If pszTypeName is NULL, CryptEnumProviderTypesW sets the size of the name
   *   for memory allocation purposes.
   */
  BOOL WINAPI CryptEnumProviderTypesW (DWORD dwIndex, DWORD *pdwReserved,
  		DWORD dwFlags, DWORD *pdwProvType, LPWSTR pszTypeName, DWORD *pcbTypeName)
  {
  	HKEY hKey, hSubkey;
  	DWORD keylen, numkeys, dwType;
  	PWSTR keyname, ch;
  	DWORD result;
  	static const WCHAR KEYSTR[] = {
                  'S','o','f','t','w','a','r','e','\\',
                  'M','i','c','r','o','s','o','f','t','\\',
                  'C','r','y','p','t','o','g','r','a','p','h','y','\\',
                  'D','e','f','a','u','l','t','s','\\',
                  'P','r','o','v','i','d','e','r',' ','T','y','p','e','s',0
  	};
  	static const WCHAR typenameW[] = {'T','y','p','e','N','a','m','e',0};
  
  	TRACE("(%d, %p, %08x, %p, %p, %p)\n", dwIndex, pdwReserved,
  		dwFlags, pdwProvType, pszTypeName, pcbTypeName);
  
  	if (pdwReserved || !pdwProvType || !pcbTypeName)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  	if (dwFlags)
  	{
  		SetLastError(NTE_BAD_FLAGS);
  		return FALSE;
  	}
  
  	if (RegOpenKeyW(HKEY_LOCAL_MACHINE, KEYSTR, &hKey))
  		return FALSE;
  
  	RegQueryInfoKeyW(hKey, NULL, NULL, NULL, &numkeys, &keylen, NULL, NULL, NULL, NULL, NULL, NULL);
  	if (dwIndex >= numkeys)
  	{
  		SetLastError(ERROR_NO_MORE_ITEMS);
  		return FALSE;
  	}
  	keylen++;
  	if ( !(keyname = CRYPT_Alloc(keylen*sizeof(WCHAR))) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  	if ( RegEnumKeyW(hKey, dwIndex, keyname, keylen) ) {
                  CRYPT_Free(keyname);
  		return FALSE;
          }
  	RegOpenKeyW(hKey, keyname, &hSubkey);
  	ch = keyname + strlenW(keyname);
  	/* Convert "Type 000" to 0, etc/ */
  	*pdwProvType = *(--ch) - '0';
  	*pdwProvType += (*(--ch) - '0') * 10;
  	*pdwProvType += (*(--ch) - '0') * 100;
  	CRYPT_Free(keyname);
  	
  	result = RegQueryValueExW(hSubkey, typenameW, NULL, &dwType, (LPBYTE)pszTypeName, pcbTypeName);
  	if (result)
  	{
  		SetLastError(result);
  		return FALSE;
  	}
  
  	RegCloseKey(hSubkey);
  	RegCloseKey(hKey);
  	return TRUE;
  }
  
  /******************************************************************************
   * CryptEnumProviderTypesA (ADVAPI32.@)
   *
   * See CryptEnumProviderTypesW.
   */
  BOOL WINAPI CryptEnumProviderTypesA (DWORD dwIndex, DWORD *pdwReserved,
  		DWORD dwFlags, DWORD *pdwProvType, LPSTR pszTypeName, DWORD *pcbTypeName)
  {
  	PWSTR str = NULL;
  	DWORD bufsize;
  	BOOL ret;
  
  	TRACE("(%d, %p, %08x, %p, %p, %p)\n", dwIndex, pdwReserved, dwFlags,
  			pdwProvType, pszTypeName, pcbTypeName);
  
  	if(!CryptEnumProviderTypesW(dwIndex, pdwReserved, dwFlags, pdwProvType, NULL, &bufsize))
  		return FALSE;
  	if ( pszTypeName && !(str = CRYPT_Alloc(bufsize)) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  	ret = CryptEnumProviderTypesW(dwIndex, pdwReserved, dwFlags, pdwProvType, str, &bufsize);
  	if (str)
  		CRYPT_UnicodeToANSI(str, &pszTypeName, *pcbTypeName);
  	*pcbTypeName = bufsize / sizeof(WCHAR);
  	if (str)
  	{
  		CRYPT_Free(str);
  		if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
  		{
  			SetLastError(ERROR_MORE_DATA);
  			return FALSE;
  		}
  	}
  	return ret;
  }
  
  /******************************************************************************
   * CryptExportKey (ADVAPI32.@)
   * 
   * Exports a cryptographic key from a CSP.
   *
   * PARAMS
   *  hKey       [I] Handle to the key to export.
   *  hExpKey    [I] Handle to a cryptographic key of the end user.
   *  dwBlobType [I] Type of BLOB to be exported.
   *  dwFlags    [I] CRYPT_DESTROYKEY/SSL2_FALLBACK/OAEP.
   *  pbData     [O] Buffer to receive BLOB data.
   *  pdwDataLen [I/O] Specifies the size of pbData.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   *
   * NOTES
   *  if pbData is NULL, CryptExportKey sets pdwDataLen as the size of the
   *  buffer needed to hold the BLOB.
   */
  BOOL WINAPI CryptExportKey (HCRYPTKEY hKey, HCRYPTKEY hExpKey, DWORD dwBlobType,
  		DWORD dwFlags, BYTE *pbData, DWORD *pdwDataLen)
  {
  	PCRYPTPROV prov;
  	PCRYPTKEY key = (PCRYPTKEY)hKey, expkey = (PCRYPTKEY)hExpKey;
  
  	TRACE("(0x%lx, 0x%lx, %d, %08x, %p, %p)\n", hKey, hExpKey, dwBlobType, dwFlags, pbData, pdwDataLen);
  
  	if (!key || !pdwDataLen || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = key->pProvider;
  	return prov->pFuncs->pCPExportKey(prov->hPrivate, key->hPrivate, expkey ? expkey->hPrivate : 0,
  			dwBlobType, dwFlags, pbData, pdwDataLen);
  }
  
  /******************************************************************************
   * CryptGenKey (ADVAPI32.@)
   *
   * Generates a random cryptographic session key or a pub/priv key pair.
   *
   * PARAMS
   *  hProv   [I] Handle to a CSP.
   *  Algid   [I] Algorithm to use to make key.
   *  dwFlags [I] Specifies type of key to make.
   *  phKey   [I] Address of the handle to which the new key is copied.
   *
   *  RETURNS
   *   Success: TRUE
   *   Failure: FALSE
   */
  BOOL WINAPI CryptGenKey (HCRYPTPROV hProv, ALG_ID Algid, DWORD dwFlags, HCRYPTKEY *phKey)
  {
  	PCRYPTPROV prov = (PCRYPTPROV)hProv;
  	PCRYPTKEY key;
  
  	TRACE("(0x%lx, %d, %08x, %p)\n", hProv, Algid, dwFlags, phKey);
  
  	if (!prov)
  	{
  		SetLastError(ERROR_INVALID_HANDLE);
  		return FALSE;
  	}
  	if (!phKey || !prov || prov->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  	if ( !(key = CRYPT_Alloc(sizeof(CRYPTKEY))) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  
  	key->pProvider = prov;
  
  	if (prov->pFuncs->pCPGenKey(prov->hPrivate, Algid, dwFlags, &key->hPrivate))
          {
              *phKey = (HCRYPTKEY)key;
              return TRUE;
          }
  
  	/* CSP error! */
  	CRYPT_Free(key);
  	return FALSE;
  }
  
  /******************************************************************************
   * CryptGetDefaultProviderW (ADVAPI32.@)
   *
   * Finds the default CSP of a certain provider type.
   *
   * PARAMS
   *  dwProvType  [I] Provider type to look for.
   *  pdwReserved [I] Reserved for future use and must be NULL.
   *  dwFlags     [I] CRYPT_MACHINE_DEFAULT/USER_DEFAULT
   *  pszProvName [O] Name of the default CSP.
   *  pcbProvName [I/O] Size of pszProvName
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   *
   * NOTES
   *  If pszProvName is NULL, pcbProvName will hold the size of the buffer for
   *  memory allocation purposes on return.
   */
  BOOL WINAPI CryptGetDefaultProviderW (DWORD dwProvType, DWORD *pdwReserved,
  		DWORD dwFlags, LPWSTR pszProvName, DWORD *pcbProvName)
  {
  	HKEY hKey;
  	PWSTR keyname;
  	DWORD result;
  	static const WCHAR nameW[] = {'N','a','m','e',0};
  
  	if (pdwReserved || !pcbProvName)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  	if (dwFlags & ~(CRYPT_USER_DEFAULT | CRYPT_MACHINE_DEFAULT))
  	{
  		SetLastError(NTE_BAD_FLAGS);
  		return FALSE;
  	}
  	if (dwProvType > 999)
  	{
  		SetLastError(NTE_BAD_PROV_TYPE);
  		return FALSE;
  	}
  	if ( !(keyname = CRYPT_GetTypeKeyName(dwProvType, dwFlags & CRYPT_USER_DEFAULT)) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  	if (RegOpenKeyW((dwFlags & CRYPT_USER_DEFAULT) ?  HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE ,keyname, &hKey))
  	{
  		CRYPT_Free(keyname);
  		SetLastError(NTE_PROV_TYPE_NOT_DEF);
  		return FALSE;
  	}
  	CRYPT_Free(keyname);
  	
  	result = RegQueryValueExW(hKey, nameW, NULL, NULL, (LPBYTE)pszProvName, pcbProvName); 
  	if (result)
  	{
  		if (result != ERROR_MORE_DATA)
  			SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
  		else
  			SetLastError(result);
  		
  		return FALSE;
  	}
  	
  	RegCloseKey(hKey);
  	return TRUE;
  }
  
  /******************************************************************************
   * CryptGetDefaultProviderA (ADVAPI32.@)
   *
   * See CryptGetDefaultProviderW.
   */
  BOOL WINAPI CryptGetDefaultProviderA (DWORD dwProvType, DWORD *pdwReserved,
  		DWORD dwFlags, LPSTR pszProvName, DWORD *pcbProvName)
  {
  	PWSTR str = NULL;
  	DWORD bufsize;
  	BOOL ret = FALSE;
  
  	TRACE("(%d, %p, %08x, %p, %p)\n", dwProvType, pdwReserved, dwFlags, pszProvName, pcbProvName);
  
  	CryptGetDefaultProviderW(dwProvType, pdwReserved, dwFlags, NULL, &bufsize);
  	if ( pszProvName && !(str = CRYPT_Alloc(bufsize)) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  	ret = CryptGetDefaultProviderW(dwProvType, pdwReserved, dwFlags, str, &bufsize);
  	if (str)
  		CRYPT_UnicodeToANSI(str, &pszProvName, *pcbProvName);
  	*pcbProvName = bufsize / sizeof(WCHAR);
  	if (str)
  	{
  		CRYPT_Free(str);
  		if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
  		{
  			SetLastError(ERROR_MORE_DATA);
  			return FALSE;
  		}
  	}
  	return ret;
  }
  
  /******************************************************************************
   * CryptGetHashParam (ADVAPI32.@)
   *
   * Retrieves data that controls the operations of a hash object.
   *
   * PARAMS
   *  hHash      [I] Handle of the hash object to question.
   *  dwParam    [I] Query type.
   *  pbData     [O] Buffer that receives the value data.
   *  pdwDataLen [I/O] Size of the pbData buffer.
   *  dwFlags    [I] Reserved for future use and must be zero.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   *
   * NOTES
   *  If pbData is NULL, pdwDataLen will contain the length required.
   */
  BOOL WINAPI CryptGetHashParam (HCRYPTHASH hHash, DWORD dwParam, BYTE *pbData,
  		DWORD *pdwDataLen, DWORD dwFlags)
  {
  	PCRYPTPROV prov;
  	PCRYPTHASH hash = (PCRYPTHASH)hHash;
  
  	TRACE("(0x%lx, %d, %p, %p, %08x)\n", hHash, dwParam, pbData, pdwDataLen, dwFlags);
  
  	if (!hash || !pdwDataLen || !hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = hash->pProvider;
  	return prov->pFuncs->pCPGetHashParam(prov->hPrivate, hash->hPrivate, dwParam,
  			pbData, pdwDataLen, dwFlags);
  }
  
  /******************************************************************************
   * CryptGetKeyParam (ADVAPI32.@)
   *
   * Retrieves data that controls the operations of a key.
   *
   * PARAMS
   *  hKey       [I] Handle to they key in question.
   *  dwParam    [I] Specifies query type.
   *  pbData     [O] Sequence of bytes to receive data.
   *  pdwDataLen [I/O] Size of pbData.
   *  dwFlags    [I] Reserved for future use and must be zero.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   *
   * NOTES
   *  If pbData is NULL, pdwDataLen is set to the needed length of the buffer.
   */
  BOOL WINAPI CryptGetKeyParam (HCRYPTKEY hKey, DWORD dwParam, BYTE *pbData,
  		DWORD *pdwDataLen, DWORD dwFlags)
  {
  	PCRYPTPROV prov;
  	PCRYPTKEY key = (PCRYPTKEY)hKey;
  
  	TRACE("(0x%lx, %d, %p, %p, %08x)\n", hKey, dwParam, pbData, pdwDataLen, dwFlags);
  
  	if (!key || !pdwDataLen || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = key->pProvider;
  	return prov->pFuncs->pCPGetKeyParam(prov->hPrivate, key->hPrivate, dwParam,
  			pbData, pdwDataLen, dwFlags);
  }
  
  /******************************************************************************
   * CryptGetProvParam (ADVAPI32.@)
   *
   * Retrieves parameters that control the operations of a CSP.
   *
   * PARAMS
   *  hProv      [I] Handle of the CSP in question.
   *  dwParam    [I] Specifies query type.
   *  pbData     [O] Buffer to receive the data.
   *  pdwDataLen [I/O] Size of pbData.
   *  dwFlags    [I] see MSDN Docs.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   *
   * NOTES
   *  If pbData is NULL, pdwDataLen is set to the needed buffer length.
   */
  BOOL WINAPI CryptGetProvParam (HCRYPTPROV hProv, DWORD dwParam, BYTE *pbData,
  		DWORD *pdwDataLen, DWORD dwFlags)
  {
  	PCRYPTPROV prov = (PCRYPTPROV)hProv;
  
  	TRACE("(0x%lx, %d, %p, %p, %08x)\n", hProv, dwParam, pbData, pdwDataLen, dwFlags);
  
  	if (!prov || prov->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	return prov->pFuncs->pCPGetProvParam(prov->hPrivate, dwParam, pbData, pdwDataLen, dwFlags);
  }
  
  /******************************************************************************
   * CryptGetUserKey (ADVAPI32.@)
   *
   * Gets a handle of one of a user's two public/private key pairs.
   *
   * PARAMS
   *  hProv     [I] Handle of a CSP.
   *  dwKeySpec [I] Private key to use.
   *  phUserKey [O] Pointer to the handle of the retrieved keys.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptGetUserKey (HCRYPTPROV hProv, DWORD dwKeySpec, HCRYPTKEY *phUserKey)
  {
  	PCRYPTPROV prov = (PCRYPTPROV)hProv;
  	PCRYPTKEY key;
  
  	TRACE("(0x%lx, %d, %p)\n", hProv, dwKeySpec, phUserKey);
  
  	if (!prov)
  	{
  		SetLastError(ERROR_INVALID_HANDLE);
  		return FALSE;
  	}
  	if (!phUserKey || prov->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  	if ( !(key = CRYPT_Alloc(sizeof(CRYPTKEY))) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  
  	key->pProvider = prov;
  
  	if (prov->pFuncs->pCPGetUserKey(prov->hPrivate, dwKeySpec, &key->hPrivate))
          {
              *phUserKey = (HCRYPTKEY)key;
              return TRUE;
          }
  
  	/* CSP Error */
  	CRYPT_Free(key);
  	*phUserKey = 0;
  	return FALSE;
  }
  
  /******************************************************************************
   * CryptHashData (ADVAPI32.@)
   *
   * Adds data to a hash object.
   *
   * PARAMS
   *  hHash     [I] Handle of the hash object.
   *  pbData    [I] Buffer of data to be hashed.
   *  dwDataLen [I] Number of bytes to add.
   *  dwFlags   [I] Can be CRYPT_USERDATA
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptHashData (HCRYPTHASH hHash, const BYTE *pbData, DWORD dwDataLen, DWORD dwFlags)
  {
  	PCRYPTHASH hash = (PCRYPTHASH)hHash;
  	PCRYPTPROV prov;
  
  	TRACE("(0x%lx, %p, %d, %08x)\n", hHash, pbData, dwDataLen, dwFlags);
  
  	if (!hash)
  	{
  		SetLastError(ERROR_INVALID_HANDLE);
  		return FALSE;
  	}
  	if (!hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = hash->pProvider;
  	return prov->pFuncs->pCPHashData(prov->hPrivate, hash->hPrivate, pbData, dwDataLen, dwFlags);
  }
  
  /******************************************************************************
   * CryptHashSessionKey (ADVAPI32.@)
   *
   * Compute the cryptographic hash of a session key object.
   *
   * PARAMS 
   *  hHash   [I] Handle to the hash object.
   *  hKey    [I] Handle to the key to be hashed.
   *  dwFlags [I] Can be CRYPT_LITTLE_ENDIAN.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptHashSessionKey (HCRYPTHASH hHash, HCRYPTKEY hKey, DWORD dwFlags)
  {
  	PCRYPTHASH hash = (PCRYPTHASH)hHash;
  	PCRYPTKEY key = (PCRYPTKEY)hKey;
  	PCRYPTPROV prov;
  
  	TRACE("(0x%lx, 0x%lx, %08x)\n", hHash, hKey, dwFlags);
  
  	if (!hash || !key)
  	{
  		SetLastError(ERROR_INVALID_HANDLE);
  		return FALSE;
  	}
  
  	if (!hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = hash->pProvider;
  	return prov->pFuncs->pCPHashSessionKey(prov->hPrivate, hash->hPrivate, key->hPrivate, dwFlags);
  }
  
  /******************************************************************************
   * CryptImportKey (ADVAPI32.@)
   *
   * Transfer a cryptographic key from a key BLOB into a cryptographic service provider (CSP).
   *
   * PARAMS
   *  hProv     [I] Handle of a CSP.
   *  pbData    [I] Contains the key to be imported.
   *  dwDataLen [I] Length of the key.
   *  hPubKey   [I] Cryptographic key that decrypts pdData
   *  dwFlags   [I] Used only with a public/private key pair.
   *  phKey     [O] Imported key.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptImportKey (HCRYPTPROV hProv, CONST BYTE *pbData, DWORD dwDataLen,
  		HCRYPTKEY hPubKey, DWORD dwFlags, HCRYPTKEY *phKey)
  {
  	PCRYPTPROV prov = (PCRYPTPROV)hProv;
  	PCRYPTKEY pubkey = (PCRYPTKEY)hPubKey, importkey;
  
  	TRACE("(0x%lx, %p, %d, 0x%lx, %08x, %p)\n", hProv, pbData, dwDataLen, hPubKey, dwFlags, phKey);
  
  	if (!prov || !pbData || !dwDataLen || !phKey || prov->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	if ( !(importkey = CRYPT_Alloc(sizeof(CRYPTKEY))) )
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  
  	importkey->pProvider = prov;
  	if (prov->pFuncs->pCPImportKey(prov->hPrivate, pbData, dwDataLen,
  			pubkey ? pubkey->hPrivate : 0, dwFlags, &importkey->hPrivate))
  	{
  		*phKey = (HCRYPTKEY)importkey;
  		return TRUE;
  	}
  
  	CRYPT_Free(importkey);
  	return FALSE;
  }
  
  /******************************************************************************
   * CryptSignHashW (ADVAPI32.@)
   *
   * Signs data.
   *
   * PARAMS
   *  hHash        [I] Handle of the hash object to be signed.
   *  dwKeySpec    [I] Private key to use.
   *  sDescription [I] Should be NULL.
   *  dwFlags      [I] CRYPT_NOHASHOID/X931_FORMAT.
   *  pbSignature  [O] Buffer of the signature data.
   *  pdwSigLen    [I/O] Size of the pbSignature buffer.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   *
   * NOTES
   *  Because of security flaws sDescription should not be used and should thus be
   *  NULL. It is supported only for compatibility with Microsoft's Cryptographic
   *  Providers.
   */
  BOOL WINAPI CryptSignHashW (HCRYPTHASH hHash, DWORD dwKeySpec, LPCWSTR sDescription,
  		DWORD dwFlags, BYTE *pbSignature, DWORD *pdwSigLen)
  {
  	PCRYPTHASH hash = (PCRYPTHASH)hHash;
  	PCRYPTPROV prov;
  
  	TRACE("(0x%lx, %d, %s, %08x, %p, %p)\n", 
  		hHash, dwKeySpec, debugstr_w(sDescription), dwFlags, pbSignature, pdwSigLen);
  
  	if (!hash)
  	{
  		SetLastError(ERROR_INVALID_HANDLE);
  		return FALSE;
  	}
  	if (!pdwSigLen || !hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = hash->pProvider;
  	return prov->pFuncs->pCPSignHash(prov->hPrivate, hash->hPrivate, dwKeySpec, sDescription,
  		dwFlags, pbSignature, pdwSigLen);
  }
  
  /******************************************************************************
   * CryptSignHashA (ADVAPI32.@)
   *
   * See CryptSignHashW.
   */
  BOOL WINAPI CryptSignHashA (HCRYPTHASH hHash, DWORD dwKeySpec, LPCSTR sDescription,
  		DWORD dwFlags, BYTE *pbSignature, DWORD *pdwSigLen)
  {
  	LPWSTR wsDescription;
  	BOOL result;
  
  	TRACE("(0x%lx, %d, %s, %08x, %p, %p)\n", 
  		hHash, dwKeySpec, debugstr_a(sDescription), dwFlags, pbSignature, pdwSigLen);
  
  	CRYPT_ANSIToUnicode(sDescription, &wsDescription, -1);
  	result = CryptSignHashW(hHash, dwKeySpec, wsDescription, dwFlags, pbSignature, pdwSigLen);
  	CRYPT_Free(wsDescription);
  
  	return result;
  }
  
  /******************************************************************************
   * CryptSetHashParam (ADVAPI32.@)
   *
   * Customizes the operations of a hash object.
   *
   * PARAMS
   *  hHash   [I] Handle of the hash object to set parameters.
   *  dwParam [I] HP_HMAC_INFO/HASHVAL.
   *  pbData  [I] Value data buffer.
   *  dwFlags [I] Reserved for future use and must be zero.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptSetHashParam (HCRYPTHASH hHash, DWORD dwParam, CONST BYTE *pbData, DWORD dwFlags)
  {
  	PCRYPTPROV prov;
  	PCRYPTHASH hash = (PCRYPTHASH)hHash;
  
  	TRACE("(0x%lx, %d, %p, %08x)\n", hHash, dwParam, pbData, dwFlags);
  
  	if (!hash || !pbData || !hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = hash->pProvider;
  	return prov->pFuncs->pCPSetHashParam(prov->hPrivate, hash->hPrivate,
  			dwParam, pbData, dwFlags);
  }
  
  /******************************************************************************
   * CryptSetKeyParam (ADVAPI32.@)
   *
   * Customizes a session key's operations.
   *
   * PARAMS
   *  hKey    [I] Handle to the key to set values.
   *  dwParam [I] See MSDN Doc.
   *  pbData  [I] Buffer of values to set.
   *  dwFlags [I] Only used when dwParam == KP_ALGID.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptSetKeyParam (HCRYPTKEY hKey, DWORD dwParam, CONST BYTE *pbData, DWORD dwFlags)
  {
  	PCRYPTPROV prov;
  	PCRYPTKEY key = (PCRYPTKEY)hKey;
  
  	TRACE("(0x%lx, %d, %p, %08x)\n", hKey, dwParam, pbData, dwFlags);
  
  	if (!key || !pbData || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  
  	prov = key->pProvider;
  	return prov->pFuncs->pCPSetKeyParam(prov->hPrivate, key->hPrivate,
  			dwParam, pbData, dwFlags);
  }
  
  /******************************************************************************
   * CryptSetProviderA (ADVAPI32.@)
   *
   * Specifies the current user's default CSP.
   *
   * PARAMS
   *  pszProvName [I] Name of the new default CSP.
   *  dwProvType  [I] Provider type of the CSP.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptSetProviderA (LPCSTR pszProvName, DWORD dwProvType)
  {
  	TRACE("(%s, %d)\n", pszProvName, dwProvType);
  	return CryptSetProviderExA(pszProvName, dwProvType, NULL, CRYPT_USER_DEFAULT);
  }
  
  /******************************************************************************
   * CryptSetProviderW (ADVAPI32.@)
   *
   * See CryptSetProviderA.
   */
  BOOL WINAPI CryptSetProviderW (LPCWSTR pszProvName, DWORD dwProvType)
  {
  	TRACE("(%s, %d)\n", debugstr_w(pszProvName), dwProvType);
  	return CryptSetProviderExW(pszProvName, dwProvType, NULL, CRYPT_USER_DEFAULT);
  }
  
  /******************************************************************************
   * CryptSetProviderExW (ADVAPI32.@)
   *
   * Specifies the default CSP.
   *
   * PARAMS
   *  pszProvName [I] Name of the new default CSP.
   *  dwProvType  [I] Provider type of the CSP.
   *  pdwReserved [I] Reserved for future use and must be NULL.
   *  dwFlags     [I] See MSDN Doc.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptSetProviderExW (LPCWSTR pszProvName, DWORD dwProvType, DWORD *pdwReserved, DWORD dwFlags)
  {
  	HKEY hProvKey, hTypeKey;
  	PWSTR keyname;
  	static const WCHAR nameW[] = {'N','a','m','e',0};
  
  	TRACE("(%s, %d, %p, %08x)\n", debugstr_w(pszProvName), dwProvType, pdwReserved, dwFlags);
  
  	if (!pszProvName || pdwReserved)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  	if (dwProvType > MAXPROVTYPES)
  	{
  		SetLastError(NTE_BAD_PROV_TYPE);
  		return FALSE;
  	}
  	if (dwFlags & ~(CRYPT_MACHINE_DEFAULT | CRYPT_USER_DEFAULT | CRYPT_DELETE_DEFAULT)
  			|| dwFlags == CRYPT_DELETE_DEFAULT)
  	{
  		SetLastError(NTE_BAD_FLAGS);
  		return FALSE;
  	}
  
  	if (!(keyname = CRYPT_GetTypeKeyName(dwProvType, dwFlags & CRYPT_USER_DEFAULT)))
  	{
  		SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  		return FALSE;
  	}
  	if (RegOpenKeyW((dwFlags & CRYPT_USER_DEFAULT) ? HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE,
  		keyname, &hTypeKey))
  	{
  		CRYPT_Free(keyname);
  		SetLastError(NTE_BAD_PROVIDER);
  		return FALSE;
  	}
  	CRYPT_Free(keyname);
  	
  	if (dwFlags & CRYPT_DELETE_DEFAULT)
  	{
  		RegDeleteValueW(hTypeKey, nameW);
  	}
  	else
  	{
  		if (!(keyname = CRYPT_GetProvKeyName(pszProvName)))
  		{
  			RegCloseKey(hTypeKey);
  			SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  			return FALSE;
  		}
  		if (RegOpenKeyW((dwFlags & CRYPT_USER_DEFAULT) ? HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE,
  			keyname, &hProvKey))
  		{
  			CRYPT_Free(keyname);
  			RegCloseKey(hTypeKey);
  			SetLastError(NTE_BAD_PROVIDER);
  			return FALSE;
  		}
  		CRYPT_Free(keyname);
  		
  		if (RegSetValueExW(hTypeKey, nameW, 0, REG_SZ, (const BYTE *)pszProvName,
  			(strlenW(pszProvName) + 1)*sizeof(WCHAR)))
  		{
  			RegCloseKey(hTypeKey);
  			RegCloseKey(hProvKey);
  			return FALSE;
  		}
  		
  		RegCloseKey(hProvKey);
  	}
  	RegCloseKey(hTypeKey);
  
  	return TRUE;
  }
  
  /******************************************************************************
   * CryptSetProviderExA (ADVAPI32.@)
   *
   * See CryptSetProviderExW.
   */
  BOOL WINAPI CryptSetProviderExA (LPCSTR pszProvName, DWORD dwProvType, DWORD *pdwReserved, DWORD dwFlags)
  {
  	BOOL ret = FALSE;
  	PWSTR str = NULL;
  
  	TRACE("(%s, %d, %p, %08x)\n", pszProvName, dwProvType, pdwReserved, dwFlags);
  
  	if (CRYPT_ANSIToUnicode(pszProvName, &str, -1))
  	{
  		ret = CryptSetProviderExW(str, dwProvType, pdwReserved, dwFlags);
  		CRYPT_Free(str);
  	}
  	return ret;
  }
  
  /******************************************************************************
   * CryptSetProvParam (ADVAPI32.@)
   *
   * Customizes the operations of a CSP.
   *
   * PARAMS
   *  hProv   [I] Handle of a CSP.
   *  dwParam [I] See MSDN Doc.
   *  pbData  [I] Buffer that contains a value to set as a parameter.
   *  dwFlags [I] if dwParam is PP_USE_HARDWARE_RNG, dwFlags must be zero.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  BOOL WINAPI CryptSetProvParam (HCRYPTPROV hProv, DWORD dwParam, CONST BYTE *pbData, DWORD dwFlags)
  {
  	PCRYPTPROV prov = (PCRYPTPROV)hProv;
  
  	TRACE("(0x%lx, %d, %p, %08x)\n", hProv, dwParam, pbData, dwFlags);
  
  	if (!prov)
  	{
  		SetLastError(ERROR_INVALID_HANDLE);
  		return FALSE;
  	}
  	if (prov->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  	if (dwFlags & PP_USE_HARDWARE_RNG)
  	{
  		FIXME("PP_USE_HARDWARE_RNG: What do I do with this?\n");
  		FIXME("\tLetting the CSP decide.\n");
  	}
  	if (dwFlags & PP_CLIENT_HWND)
  	{
  		/* FIXME: Should verify the parameter */
  		if (pbData /* && IsWindow((HWND)pbData) */)
  		{
  			crypt_hWindow = (HWND)(pbData);
  			return TRUE;
  		} else {
  			SetLastError(ERROR_INVALID_PARAMETER);
  			return FALSE;
  		}
  	}
  	/* All other flags go to the CSP */
  	return prov->pFuncs->pCPSetProvParam(prov->hPrivate, dwParam, pbData, dwFlags);
  }
  
  /******************************************************************************
   * CryptVerifySignatureW (ADVAPI32.@)
   *
   * Verifies the signature of a hash object.
   *
   * PARAMS
   *  hHash        [I] Handle of the hash object to verify.
   *  pbSignature  [I] Signature data to verify.
   *  dwSigLen     [I] Size of pbSignature.
   *  hPubKey      [I] Handle to the public key to authenticate signature.
   *  sDescription [I] Should be NULL.
   *  dwFlags      [I] See MSDN doc.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   * 
   * NOTES
   *  Because of security flaws sDescription should not be used and should thus be
   *  NULL. It is supported only for compatibility with Microsoft's Cryptographic
   *  Providers.
   */
  BOOL WINAPI CryptVerifySignatureW (HCRYPTHASH hHash, CONST BYTE *pbSignature, DWORD dwSigLen,
  		HCRYPTKEY hPubKey, LPCWSTR sDescription, DWORD dwFlags)
  {
  	PCRYPTHASH hash = (PCRYPTHASH)hHash;
  	PCRYPTKEY key = (PCRYPTKEY)hPubKey;
  	PCRYPTPROV prov;
  
  	TRACE("(0x%lx, %p, %d, 0x%lx, %s, %08x)\n", hHash, pbSignature,
  			dwSigLen, hPubKey, debugstr_w(sDescription), dwFlags);
  
  	if (!hash || !key ||
  	    !hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV ||
  	    !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
  	{
  		SetLastError(ERROR_INVALID_PARAMETER);
  		return FALSE;
  	}
  		
  	prov = hash->pProvider;
  	return prov->pFuncs->pCPVerifySignature(prov->hPrivate, hash->hPrivate, pbSignature, dwSigLen,
  		key->hPrivate, sDescription, dwFlags);
  }
  
  /******************************************************************************
   * CryptVerifySignatureA (ADVAPI32.@)
   *
   * See CryptVerifySignatureW.
   */
  BOOL WINAPI CryptVerifySignatureA (HCRYPTHASH hHash, CONST BYTE *pbSignature, DWORD dwSigLen,
  		HCRYPTKEY hPubKey, LPCSTR sDescription, DWORD dwFlags)
  {
  	LPWSTR wsDescription;
  	BOOL result;
  
  	TRACE("(0x%lx, %p, %d, 0x%lx, %s, %08x)\n", hHash, pbSignature,
  			dwSigLen, hPubKey, debugstr_a(sDescription), dwFlags);
  
  	CRYPT_ANSIToUnicode(sDescription, &wsDescription, -1);
  	result = CryptVerifySignatureW(hHash, pbSignature, dwSigLen, hPubKey, wsDescription, dwFlags);
  	CRYPT_Free(wsDescription);
  
  	return result;
  }
  
  /******************************************************************************
   * SystemFunction030   (ADVAPI32.@)
   *
   * Tests if two blocks of 16 bytes are equal
   *
   * PARAMS
   *  b1,b2   [I] block of 16 bytes
   *
   * RETURNS
   *  TRUE  if blocks are the same
   *  FALSE if blocks are different
   */
  BOOL WINAPI SystemFunction030(LPCVOID b1, LPCVOID b2)
  {
      return !memcmp(b1, b2, 0x10);
  }
  
  /******************************************************************************
   * SystemFunction035   (ADVAPI32.@)
   *
   * Described here:
  http://disc.server.com/discussion.cgi?disc=148775;article=942;title=Coding%2FASM%2FSystem
   *
   * NOTES
   *  Stub, always return TRUE.
   */
  BOOL WINAPI SystemFunction035(LPCSTR lpszDllFilePath)
  {
      FIXME("%s: stub\n", debugstr_a(lpszDllFilePath));
      return TRUE;
  }
  
  /******************************************************************************
   * SystemFunction036   (ADVAPI32.@)
   *
   * MSDN documents this function as RtlGenRandom and declares it in ntsecapi.h
   *
   * PARAMS
   *  pbBufer [O] Pointer to memory to receive random bytes.
   *  dwLen   [I] Number of random bytes to fetch.
   *
   * RETURNS
   *  Success: TRUE
   *  Failure: FALSE
   */
  
  BOOL WINAPI SystemFunction036(PVOID pbBuffer, ULONG dwLen)
  {
      int dev_random;
  
      dev_random = open("/dev/urandom", O_RDONLY);
      if (dev_random != -1)
      {
          if (read(dev_random, pbBuffer, dwLen) == (ssize_t)dwLen)
          {
              close(dev_random);
              return TRUE;
          }
          close(dev_random);
      }
      else
          FIXME("couldn't open /dev/urandom\n");
      SetLastError(NTE_FAIL);
      return FALSE;
  }    
      
  /*
     These functions have nearly identical prototypes to CryptProtectMemory and CryptUnprotectMemory,
     in crypt32.dll.
   */
  
  /******************************************************************************
   * SystemFunction040   (ADVAPI32.@)
   *
   * MSDN documents this function as RtlEncryptMemory.
   *
   * PARAMS
   *  memory [I/O] Pointer to memory to encrypt.
   *  length [I] Length of region to encrypt in bytes.
   *  flags  [I] Control whether other processes are able to decrypt the memory.
   *    RTL_ENCRYPT_OPTION_SAME_PROCESS 
   *    RTL_ENCRYPT_OPTION_CROSS_PROCESS 
   *    RTL_ENCRYPT_OPTION_SAME_LOGON
   *    
   * RETURNS
   *  Success: STATUS_SUCCESS
   *  Failure: NTSTATUS error code
   *
   * NOTES
   *  length must be a multiple of RTL_ENCRYPT_MEMORY_SIZE.
   *  If flags are specified when encrypting, the same flag value must be given
   *  when decrypting the memory.
   */
  NTSTATUS WINAPI SystemFunction040(PVOID memory, ULONG length, ULONG flags)
  {
  	FIXME("(%p, %x, %x): stub [RtlEncryptMemory]\n", memory, length, flags);
  	return STATUS_SUCCESS;
  }
  
  /******************************************************************************
   * SystemFunction041  (ADVAPI32.@)
   *
   * MSDN documents this function as RtlDecryptMemory.
   *
   * PARAMS
   *  memory [I/O] Pointer to memory to decrypt.
   *  length [I] Length of region to decrypt in bytes.
   *  flags  [I] Control whether other processes are able to decrypt the memory.
   *    RTL_ENCRYPT_OPTION_SAME_PROCESS
   *    RTL_ENCRYPT_OPTION_CROSS_PROCESS
   *    RTL_ENCRYPT_OPTION_SAME_LOGON
   *
   * RETURNS
   *  Success: STATUS_SUCCESS
   *  Failure: NTSTATUS error code
   *
   * NOTES
   *  length must be a multiple of RTL_ENCRYPT_MEMORY_SIZE.
   *  If flags are specified when encrypting, the same flag value must be given
   *  when decrypting the memory.
   */
  NTSTATUS WINAPI SystemFunction041(PVOID memory, ULONG length, ULONG flags)
  {
  	FIXME("(%p, %x, %x): stub [RtlDecryptMemory]\n", memory, length, flags);
  	return STATUS_SUCCESS;
  }
  