dlls/advapi32/crypt.c

   1 /*
   2  * Copyright 1999 Ian Schmidt
   3  * Copyright 2001 Travis Michielsen
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 /***********************************************************************
  21  *
  22  *  TODO:
  23  *  - Reference counting
  24  *  - Thread-safing
  25  */
  26
  27 #include "config.h"
  28 #include "wine/port.h"
  29
  30 #include <time.h>
  31 #include <stdlib.h>
  32 #include <stdio.h>
  33 #include <sys/types.h>
  34 #ifdef HAVE_SYS_STAT_H
  35 # include <sys/stat.h>
  36 #endif
  37 #include <fcntl.h>
  38 #ifdef HAVE_UNISTD_H
  39 # include <unistd.h>
  40 #endif
  41
  42 #include "ntstatus.h"
  43 #define WIN32_NO_STATUS
  44 #include "crypt.h"
  45 #include "winnls.h"
  46 #include "winreg.h"
  47 #include "rpc.h"
  48 #include "wine/debug.h"
  49 #include "wine/unicode.h"
  50 #include "winternl.h"
  51
  52 WINE_DEFAULT_DEBUG_CHANNEL(crypt);
  53
  54 static HWND crypt_hWindow;
  55
  56 #define CRYPT_Alloc(size) (LocalAlloc(LMEM_ZEROINIT, size))
  57 #define CRYPT_Free(buffer) (LocalFree(buffer))
  58
  59 static inline PWSTR CRYPT_GetProvKeyName(PCWSTR pProvName)
  60 {
  61         static const WCHAR KEYSTR[] = {
  62                 'S','o','f','t','w','a','r','e','\\',
  63                 'M','i','c','r','o','s','o','f','t','\\',
  64                 'C','r','y','p','t','o','g','r','a','p','h','y','\\',
  65                 'D','e','f','a','u','l','t','s','\\',
  66                 'P','r','o','v','i','d','e','r','\\',0
  67         };
  68         PWSTR keyname;
  69
  70         keyname = CRYPT_Alloc((strlenW(KEYSTR) + strlenW(pProvName) +1)*sizeof(WCHAR));
  71         if (keyname)
  72         {
  73                 strcpyW(keyname, KEYSTR);
  74                 strcpyW(keyname + strlenW(KEYSTR), pProvName);
  75         } else
  76                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
  77         return keyname;
  78 }
  79
  80 static inline PWSTR CRYPT_GetTypeKeyName(DWORD dwType, BOOL user)
  81 {
  82         static const WCHAR MACHINESTR[] = {
  83                 'S','o','f','t','w','a','r','e','\\',
  84                 'M','i','c','r','o','s','o','f','t','\\',
  85                 'C','r','y','p','t','o','g','r','a','p','h','y','\\',
  86                 'D','e','f','a','u','l','t','s','\\',
  87                 'P','r','o','v','i','d','e','r',' ','T','y','p','e','s','\\',
  88                 'T','y','p','e',' ','X','X','X',0
  89         };
  90         static const WCHAR USERSTR[] = {
  91                 'S','o','f','t','w','a','r','e','\\',
  92                 'M','i','c','r','o','s','o','f','t','\\',
  93                 'C','r','y','p','t','o','g','r','a','p','h','y','\\',
  94                 'P','r','o','v','i','d','e','r',' ','T','y','p','e',' ','X','X','X',0
  95         };
  96         PWSTR keyname;
  97         PWSTR ptr;
  98
  99         keyname = CRYPT_Alloc( ((user ? strlenW(USERSTR) : strlenW(MACHINESTR)) +1)*sizeof(WCHAR));
 100         if (keyname)
 101         {
 102                 user ? strcpyW(keyname, USERSTR) : strcpyW(keyname, MACHINESTR);
 103                 ptr = keyname + strlenW(keyname);
 104                 *(--ptr) = (dwType % 10) + '0';
 105                 *(--ptr) = ((dwType / 10) % 10) + '0';
 106                 *(--ptr) = (dwType / 100) + '0';
 107         } else
 108                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 109         return keyname;
 110 }
 111
 112 /* CRYPT_UnicodeTOANSI
 113  * wstr - unicode string
 114  * str - pointer to ANSI string
 115  * strsize - size of buffer pointed to by str or -1 if we have to do the allocation
 116  *
 117  * returns TRUE if unsuccessful, FALSE otherwise.
 118  * if wstr is NULL, returns TRUE and sets str to NULL! Value of str should be checked after call
 119  */
 120 static inline BOOL CRYPT_UnicodeToANSI(LPCWSTR wstr, LPSTR* str, int strsize)
 121 {
 122         int count;
 123
 124         if (!wstr)
 125         {
 126                 *str = NULL;
 127                 return TRUE;
 128         }
 129         count = WideCharToMultiByte(CP_ACP, 0, wstr, -1, NULL, 0, NULL, NULL);
 130         if (strsize == -1)
 131                 *str = CRYPT_Alloc(count * sizeof(CHAR));
 132         else
 133                 count = min( count, strsize );
 134         if (*str)
 135         {
 136                 WideCharToMultiByte(CP_ACP, 0, wstr, -1, *str, count, NULL, NULL);
 137                 return TRUE;
 138         }
 139         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 140         return FALSE;
 141 }
 142
 143 /* CRYPT_ANSITOUnicode
 144  * str - ANSI string
 145  * wstr - pointer to unicode string
 146  * wstrsize - size of buffer pointed to by wstr or -1 if we have to do the allocation
 147  */
 148 static inline BOOL CRYPT_ANSIToUnicode(LPCSTR str, LPWSTR* wstr, int wstrsize)
 149 {
 150         unsigned int wcount;
 151
 152         if (!str)
 153         {
 154                 *wstr = NULL;
 155                 return TRUE;
 156         }
 157         wcount = MultiByteToWideChar(CP_ACP, 0, str, -1, NULL, 0);
 158         if (wstrsize == -1)
 159                 *wstr = CRYPT_Alloc(wcount * sizeof(WCHAR));
 160         else
 161                 wcount = min( wcount, wstrsize/sizeof(WCHAR) );
 162         if (*wstr)
 163         {
 164                 MultiByteToWideChar(CP_ACP, 0, str, -1, *wstr, wcount);
 165                 return TRUE;
 166         }
 167         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 168         return FALSE;
 169 }
 170
 171 /* These next 2 functions are used by the VTableProvStruc structure */
 172 static BOOL CALLBACK CRYPT_VerifyImage(LPCSTR lpszImage, BYTE* pData)
 173 {
 174         if (!lpszImage || !pData)
 175         {
 176                 SetLastError(ERROR_INVALID_PARAMETER);
 177                 return FALSE;
 178         }
 179
 180         FIXME("(%s, %p): not verifying image\n", lpszImage, pData);
 181
 182         return TRUE;
 183 }
 184
 185 static void CALLBACK CRYPT_ReturnhWnd(HWND *phWnd)
 186 {
 187         if (phWnd) *phWnd = crypt_hWindow;
 188 }
 189
 190 #define CRYPT_GetProvFunc(name) \
 191         if ( !(provider->pFuncs->p##name = (void*)GetProcAddress(provider->hModule, #name)) ) goto error
 192 #define CRYPT_GetProvFuncOpt(name) \
 193         provider->pFuncs->p##name = (void*)GetProcAddress(provider->hModule, #name)
 194 static PCRYPTPROV CRYPT_LoadProvider(PCWSTR pImage)
 195 {
 196         PCRYPTPROV provider;
 197         DWORD errorcode = ERROR_NOT_ENOUGH_MEMORY;
 198
 199         if ( !(provider = CRYPT_Alloc(sizeof(CRYPTPROV))) ) goto error;
 200         if ( !(provider->pFuncs = CRYPT_Alloc(sizeof(PROVFUNCS))) ) goto error;
 201         if ( !(provider->pVTable = CRYPT_Alloc(sizeof(VTableProvStruc))) ) goto error;
 202         if ( !(provider->hModule = LoadLibraryW(pImage)) )
 203         {
 204                 errorcode = (GetLastError() == ERROR_FILE_NOT_FOUND) ? NTE_PROV_DLL_NOT_FOUND : NTE_PROVIDER_DLL_FAIL;
 205                 FIXME("Failed to load dll %s\n", debugstr_w(pImage));
 206                 goto error;
 207         }
 208         provider->dwMagic = MAGIC_CRYPTPROV;
 209         provider->refcount = 1;
 210
 211         errorcode = NTE_PROVIDER_DLL_FAIL;
 212         CRYPT_GetProvFunc(CPAcquireContext);
 213         CRYPT_GetProvFunc(CPCreateHash);
 214         CRYPT_GetProvFunc(CPDecrypt);
 215         CRYPT_GetProvFunc(CPDeriveKey);
 216         CRYPT_GetProvFunc(CPDestroyHash);
 217         CRYPT_GetProvFunc(CPDestroyKey);
 218         CRYPT_GetProvFuncOpt(CPDuplicateHash);
 219         CRYPT_GetProvFuncOpt(CPDuplicateKey);
 220         CRYPT_GetProvFunc(CPEncrypt);
 221         CRYPT_GetProvFunc(CPExportKey);
 222         CRYPT_GetProvFunc(CPGenKey);
 223         CRYPT_GetProvFunc(CPGenRandom);
 224         CRYPT_GetProvFunc(CPGetHashParam);
 225         CRYPT_GetProvFunc(CPGetKeyParam);
 226         CRYPT_GetProvFunc(CPGetProvParam);
 227         CRYPT_GetProvFunc(CPGetUserKey);
 228         CRYPT_GetProvFunc(CPHashData);
 229         CRYPT_GetProvFunc(CPHashSessionKey);
 230         CRYPT_GetProvFunc(CPImportKey);
 231         CRYPT_GetProvFunc(CPReleaseContext);
 232         CRYPT_GetProvFunc(CPSetHashParam);
 233         CRYPT_GetProvFunc(CPSetKeyParam);
 234         CRYPT_GetProvFunc(CPSetProvParam);
 235         CRYPT_GetProvFunc(CPSignHash);
 236         CRYPT_GetProvFunc(CPVerifySignature);
 237
 238         /* FIXME: Not sure what the pbContextInfo field is for.
 239          *        Does it need memory allocation?
 240          */
 241         provider->pVTable->Version = 3;
 242         provider->pVTable->FuncVerifyImage = CRYPT_VerifyImage;
 243         provider->pVTable->FuncReturnhWnd = CRYPT_ReturnhWnd;
 244         provider->pVTable->dwProvType = 0;
 245         provider->pVTable->pbContextInfo = NULL;
 246         provider->pVTable->cbContextInfo = 0;
 247         provider->pVTable->pszProvName = NULL;
 248         return provider;
 249
 250 error:
 251         SetLastError(errorcode);
 252         if (provider)
 253         {
 254                 provider->dwMagic = 0;
 255                 if (provider->hModule)
 256                         FreeLibrary(provider->hModule);
 257                 CRYPT_Free(provider->pVTable);
 258                 CRYPT_Free(provider->pFuncs);
 259                 CRYPT_Free(provider);
 260         }
 261         return NULL;
 262 }
 263 #undef CRYPT_GetProvFunc
 264 #undef CRYPT_GetProvFuncOpt
 265
 266
 267 static void CRYPT_CreateMachineGuid(void)
 268 {
 269         static const WCHAR cryptographyW[] = {
 270                 'S','o','f','t','w','a','r','e','\\',
 271                 'M','i','c','r','o','s','o','f','t','\\',
 272                 'C','r','y','p','t','o','g','r','a','p','h','y',0 };
 273         static const WCHAR machineGuidW[] = {
 274                 'M','a','c','h','i','n','e','G','u','i','d',0 };
 275         LONG r;
 276         HKEY key;
 277
 278         r = RegOpenKeyExW(HKEY_LOCAL_MACHINE, cryptographyW, 0, KEY_ALL_ACCESS,
 279                           &key);
 280         if (!r)
 281         {
 282                 DWORD size;
 283
 284                 r = RegQueryValueExW(key, machineGuidW, NULL, NULL, NULL, &size);
 285                 if (r == ERROR_FILE_NOT_FOUND)
 286                 {
 287                     UUID uuid;
 288                     WCHAR buf[37];
 289                     RPC_STATUS rs;
 290                     static const WCHAR uuidFmt[] = {
 291                         '%','0','8','x','-','%','0','4','x','-',
 292                         '%','0','4','x','-','%','0','2','x',
 293                         '%','0','2','x','-','%','0','2','x',
 294                         '%','0','2','x','%','0','2','x',
 295                         '%','0','2','x','%','0','2','x',
 296                         '%','0','2','x',0 };
 297
 298                     rs = UuidCreate(&uuid);
 299                     if (rs == S_OK)
 300                     {
 301                         sprintfW(buf, uuidFmt,
 302                                  uuid.Data1, uuid.Data2, uuid.Data3,
 303                                  uuid.Data4[0], uuid.Data4[1],
 304                                  uuid.Data4[2], uuid.Data4[3],
 305                                  uuid.Data4[4], uuid.Data4[5],
 306                                  uuid.Data4[6], uuid.Data4[7] );
 307                         RegSetValueExW(key, machineGuidW, 0, REG_SZ,
 308                                        (const BYTE *)buf,
 309                                        (lstrlenW(buf)+1)*sizeof(WCHAR));
 310                     }
 311                 }
 312                 RegCloseKey(key);
 313         }
 314 }
 315
 316 /******************************************************************************
 317  * CryptAcquireContextW (ADVAPI32.@)
 318  *
 319  * Acquire a crypto provider context handle.
 320  *
 321  * PARAMS
 322  *  phProv       [O] Pointer to HCRYPTPROV for the output.
 323  *  pszContainer [I] Key Container Name
 324  *  pszProvider  [I] Cryptographic Service Provider Name
 325  *  dwProvType   [I] Crypto provider type to get a handle.
 326  *  dwFlags      [I] flags for the operation
 327  *
 328  * RETURNS
 329  *  TRUE on success, FALSE on failure.
 330  */
 331 BOOL WINAPI CryptAcquireContextW (HCRYPTPROV *phProv, LPCWSTR pszContainer,
 332                 LPCWSTR pszProvider, DWORD dwProvType, DWORD dwFlags)
 333 {
 334         PCRYPTPROV pProv = NULL;
 335         HKEY key;
 336         PWSTR imagepath = NULL, keyname = NULL, provname = NULL, temp = NULL;
 337         PSTR provnameA = NULL, pszContainerA = NULL;
 338         DWORD keytype, type, len;
 339         ULONG r;
 340         static const WCHAR nameW[] = {'N','a','m','e',0};
 341         static const WCHAR typeW[] = {'T','y','p','e',0};
 342         static const WCHAR imagepathW[] = {'I','m','a','g','e',' ','P','a','t','h',0};
 343
 344         TRACE("(%p, %s, %s, %d, %08x)\n", phProv, debugstr_w(pszContainer),
 345                 debugstr_w(pszProvider), dwProvType, dwFlags);
 346
 347         if (dwProvType < 1 || dwProvType > MAXPROVTYPES)
 348         {
 349                 SetLastError(NTE_BAD_PROV_TYPE);
 350                 return FALSE;
 351         }
 352
 353         if (!phProv)
 354         {
 355                 SetLastError(ERROR_INVALID_PARAMETER);
 356                 return FALSE;
 357         }
 358
 359         /* Make sure the MachineGuid value exists */
 360         CRYPT_CreateMachineGuid();
 361
 362         if (!pszProvider || !*pszProvider)
 363         {
 364                 /* No CSP name specified so try the user default CSP first
 365                  * then try the machine default CSP
 366                  */
 367                 if ( !(keyname = CRYPT_GetTypeKeyName(dwProvType, TRUE)) ) {
 368                         TRACE("No provider registered for crypto provider type %d.\n", dwProvType);
 369                         SetLastError(NTE_PROV_TYPE_NOT_DEF);
 370                         return FALSE;
 371                 }
 372                 if (RegOpenKeyW(HKEY_CURRENT_USER, keyname, &key))
 373                 {
 374                         CRYPT_Free(keyname);
 375                         if ( !(keyname = CRYPT_GetTypeKeyName(dwProvType, FALSE)) ) {
 376                                 TRACE("No type registered for crypto provider type %d.\n", dwProvType);
 377                                 RegCloseKey(key);
 378                                 SetLastError(NTE_PROV_TYPE_NOT_DEF);
 379                                 goto error;
 380                         }
 381                         if (RegOpenKeyW(HKEY_LOCAL_MACHINE, keyname, &key)) {
 382                                 TRACE("Did not find registry entry of crypto provider for %s.\n", debugstr_w(keyname));
 383                                 CRYPT_Free(keyname);
 384                                 RegCloseKey(key);
 385                                 SetLastError(NTE_PROV_TYPE_NOT_DEF);
 386                                 goto error;
 387                         }
 388                 }
 389                 CRYPT_Free(keyname);
 390                 r = RegQueryValueExW(key, nameW, NULL, &keytype, NULL, &len);
 391                 if( r != ERROR_SUCCESS || !len || keytype != REG_SZ)
 392                 {
 393                         TRACE("error %d reading size of 'Name' from registry\n", r );
 394                         RegCloseKey(key);
 395                         SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
 396                         goto error;
 397                 }
 398                 if(!(provname = CRYPT_Alloc(len)))
 399                 {
 400                         RegCloseKey(key);
 401                         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 402                         goto error;
 403                 }
 404                 r = RegQueryValueExW(key, nameW, NULL, NULL, (LPBYTE)provname, &len);
 405                 if( r != ERROR_SUCCESS )
 406                 {
 407                         TRACE("error %d reading 'Name' from registry\n", r );
 408                         RegCloseKey(key);
 409                         SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
 410                         goto error;
 411                 }
 412                 RegCloseKey(key);
 413         } else {
 414                 if ( !(provname = CRYPT_Alloc((strlenW(pszProvider) +1)*sizeof(WCHAR))) )
 415                 {
 416                         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 417                         goto error;
 418                 }
 419                 strcpyW(provname, pszProvider);
 420         }
 421
 422         keyname = CRYPT_GetProvKeyName(provname);
 423         r = RegOpenKeyW(HKEY_LOCAL_MACHINE, keyname, &key);
 424         CRYPT_Free(keyname);
 425         if (r != ERROR_SUCCESS)
 426         {
 427                 SetLastError(NTE_KEYSET_NOT_DEF);
 428                 goto error;
 429         }
 430         len = sizeof(DWORD);
 431         r = RegQueryValueExW(key, typeW, NULL, NULL, (BYTE*)&type, &len);
 432         if (r != ERROR_SUCCESS)
 433         {
 434                 SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
 435                 goto error;
 436         }
 437         if (type != dwProvType)
 438         {
 439                 TRACE("Crypto provider has wrong type (%d vs expected %d).\n", type, dwProvType);
 440                 SetLastError(NTE_PROV_TYPE_NO_MATCH);
 441                 goto error;
 442         }
 443
 444         r = RegQueryValueExW(key, imagepathW, NULL, &keytype, NULL, &len);
 445         if ( r != ERROR_SUCCESS || keytype != REG_SZ)
 446         {
 447                 TRACE("error %d reading size of 'Image Path' from registry\n", r );
 448                 RegCloseKey(key);
 449                 SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
 450                 goto error;
 451         }
 452         if (!(temp = CRYPT_Alloc(len)))
 453         {
 454                 RegCloseKey(key);
 455                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 456                 goto error;
 457         }
 458         r = RegQueryValueExW(key, imagepathW, NULL, NULL, (LPBYTE)temp, &len);
 459         if( r != ERROR_SUCCESS )
 460         {
 461                 TRACE("error %d reading 'Image Path' from registry\n", r );
 462                 RegCloseKey(key);
 463                 SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
 464                 goto error;
 465         }
 466         RegCloseKey(key);
 467         len = ExpandEnvironmentStringsW(temp, NULL, 0);
 468         if ( !(imagepath = CRYPT_Alloc(len*sizeof(WCHAR))) )
 469         {
 470                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 471                 goto error;
 472         }
 473         if (!ExpandEnvironmentStringsW(temp, imagepath, len))
 474         {
 475                 /* ExpandEnvironmentStrings will call SetLastError */
 476                 goto error;
 477         }
 478         pProv = CRYPT_LoadProvider(imagepath);
 479         if (!pProv) {
 480                 /* CRYPT_LoadProvider calls SetLastError */
 481                 goto error;
 482         }
 483         pProv->pVTable->dwProvType = dwProvType;
 484         if(!CRYPT_UnicodeToANSI(provname, &provnameA, -1))
 485         {
 486                 /* CRYPT_UnicodeToANSI calls SetLastError */
 487                 goto error;
 488         }
 489         pProv->pVTable->pszProvName = provnameA;
 490         if(!CRYPT_UnicodeToANSI(pszContainer, &pszContainerA, -1))
 491         {
 492                 /* CRYPT_UnicodeToANSI calls SetLastError */
 493                 goto error;
 494         }
 495         if (pProv->pFuncs->pCPAcquireContext(&pProv->hPrivate, pszContainerA, dwFlags, pProv->pVTable))
 496         {
 497                 /* MSDN: When this flag is set, the value returned in phProv is undefined,
 498                  *       and thus, the CryptReleaseContext function need not be called afterwards.
 499                  *       Therefore, we must clean up everything now.
 500                  */
 501                 if (dwFlags & CRYPT_DELETEKEYSET)
 502                 {
 503                         pProv->dwMagic = 0;
 504                         FreeLibrary(pProv->hModule);
 505                         CRYPT_Free(provnameA);
 506                         CRYPT_Free(pProv->pVTable);
 507                         CRYPT_Free(pProv->pFuncs);
 508                         CRYPT_Free(pProv);
 509                 } else {
 510                         *phProv = (HCRYPTPROV)pProv;
 511                 }
 512                 CRYPT_Free(pszContainerA);
 513                 CRYPT_Free(provname);
 514                 CRYPT_Free(temp);
 515                 CRYPT_Free(imagepath);
 516                 return TRUE;
 517         }
 518         /* FALLTHROUGH TO ERROR IF FALSE - CSP internal error! */
 519 error:
 520         if (pProv)
 521         {
 522                 pProv->dwMagic = 0;
 523                 if (pProv->hModule)
 524                         FreeLibrary(pProv->hModule);
 525                 CRYPT_Free(pProv->pVTable);
 526                 CRYPT_Free(pProv->pFuncs);
 527                 CRYPT_Free(pProv);
 528         }
 529         CRYPT_Free(pszContainerA);
 530         CRYPT_Free(provnameA);
 531         CRYPT_Free(provname);
 532         CRYPT_Free(temp);
 533         CRYPT_Free(imagepath);
 534         return FALSE;
 535 }
 536
 537 /******************************************************************************
 538  * CryptAcquireContextA (ADVAPI32.@)
 539  *
 540  * See CryptAcquireContextW.
 541  */
 542 BOOL WINAPI CryptAcquireContextA (HCRYPTPROV *phProv, LPCSTR pszContainer,
 543                 LPCSTR pszProvider, DWORD dwProvType, DWORD dwFlags)
 544 {
 545         PWSTR pProvider = NULL, pContainer = NULL;
 546         BOOL ret = FALSE;
 547
 548         TRACE("(%p, %s, %s, %d, %08x)\n", phProv, pszContainer,
 549                 pszProvider, dwProvType, dwFlags);
 550
 551         if ( !CRYPT_ANSIToUnicode(pszContainer, &pContainer, -1) )
 552         {
 553                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 554                 return FALSE;
 555         }
 556         if ( !CRYPT_ANSIToUnicode(pszProvider, &pProvider, -1) )
 557         {
 558                 CRYPT_Free(pContainer);
 559                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 560                 return FALSE;
 561         }
 562
 563         ret = CryptAcquireContextW(phProv, pContainer, pProvider, dwProvType, dwFlags);
 564
 565         CRYPT_Free(pContainer);
 566         CRYPT_Free(pProvider);
 567
 568         return ret;
 569 }
 570
 571 /******************************************************************************
 572  * CryptContextAddRef (ADVAPI32.@)
 573  *
 574  * Increases reference count of a cryptographic service provider handle
 575  * by one.
 576  *
 577  * PARAMS
 578  *  hProv       [I] Handle to the CSP whose reference is being incremented.
 579  *  pdwReserved [IN] Reserved for future use and must be NULL.
 580  *  dwFlags     [I] Reserved for future use and must be NULL.
 581  *
 582  * RETURNS
 583  *  Success: TRUE
 584  *  Failure: FALSE
 585  */
 586 BOOL WINAPI CryptContextAddRef (HCRYPTPROV hProv, DWORD *pdwReserved, DWORD dwFlags)
 587 {
 588         PCRYPTPROV pProv = (PCRYPTPROV)hProv;
 589
 590         TRACE("(0x%lx, %p, %08x)\n", hProv, pdwReserved, dwFlags);
 591
 592         if (!pProv)
 593         {
 594                 SetLastError(NTE_BAD_UID);
 595                 return FALSE;
 596         }
 597
 598         if (pProv->dwMagic != MAGIC_CRYPTPROV)
 599         {
 600                 SetLastError(ERROR_INVALID_PARAMETER);
 601                 return FALSE;
 602         }
 603
 604         pProv->refcount++;
 605         return TRUE;
 606 }
 607
 608 /******************************************************************************
 609  * CryptReleaseContext (ADVAPI32.@)
 610  *
 611  * Releases the handle of a CSP.  Reference count is decreased.
 612  *
 613  * PARAMS
 614  *  hProv   [I] Handle of a CSP.
 615  *  dwFlags [I] Reserved for future use and must be NULL.
 616  *
 617  * RETURNS
 618  *  Success: TRUE
 619  *  Failure: FALSE
 620  */
 621 BOOL WINAPI CryptReleaseContext (HCRYPTPROV hProv, ULONG_PTR dwFlags)
 622 {
 623         PCRYPTPROV pProv = (PCRYPTPROV)hProv;
 624         BOOL ret = TRUE;
 625
 626         TRACE("(0x%lx, %08lx)\n", hProv, dwFlags);
 627
 628         if (!pProv)
 629         {
 630                 SetLastError(NTE_BAD_UID);
 631                 return FALSE;
 632         }
 633
 634         if (pProv->dwMagic != MAGIC_CRYPTPROV)
 635         {
 636                 SetLastError(ERROR_INVALID_PARAMETER);
 637                 return FALSE;
 638         }
 639
 640         pProv->refcount--;
 641         if (pProv->refcount <= 0)
 642         {
 643                 ret = pProv->pFuncs->pCPReleaseContext(pProv->hPrivate, dwFlags);
 644                 pProv->dwMagic = 0;
 645                 FreeLibrary(pProv->hModule);
 646 #if 0
 647                 CRYPT_Free(pProv->pVTable->pContextInfo);
 648 #endif
 649                 CRYPT_Free(pProv->pVTable->pszProvName);
 650                 CRYPT_Free(pProv->pVTable);
 651                 CRYPT_Free(pProv->pFuncs);
 652                 CRYPT_Free(pProv);
 653         }
 654         return ret;
 655 }
 656
 657 /******************************************************************************
 658  * CryptGenRandom (ADVAPI32.@)
 659  *
 660  * Fills a buffer with cryptographically random bytes.
 661  *
 662  * PARAMS
 663  *  hProv    [I] Handle of a CSP.
 664  *  dwLen    [I] Number of bytes to generate.
 665  *  pbBuffer [I/O] Buffer to contain random bytes.
 666  *
 667  * RETURNS
 668  *  Success: TRUE
 669  *  Failure: FALSE
 670  *
 671  * NOTES
 672  *  pdBuffer must be at least dwLen bytes long.
 673  */
 674 BOOL WINAPI CryptGenRandom (HCRYPTPROV hProv, DWORD dwLen, BYTE *pbBuffer)
 675 {
 676         PCRYPTPROV prov = (PCRYPTPROV)hProv;
 677
 678         TRACE("(0x%lx, %d, %p)\n", hProv, dwLen, pbBuffer);
 679
 680         if (!hProv)
 681         {
 682                 SetLastError(ERROR_INVALID_HANDLE);
 683                 return FALSE;
 684         }
 685
 686         if (prov->dwMagic != MAGIC_CRYPTPROV)
 687         {
 688                 SetLastError(ERROR_INVALID_PARAMETER);
 689                 return FALSE;
 690         }
 691
 692         return prov->pFuncs->pCPGenRandom(prov->hPrivate, dwLen, pbBuffer);
 693 }
 694
 695 /******************************************************************************
 696  * CryptCreateHash (ADVAPI32.@)
 697  *
 698  * Initiates the hashing of a stream of data.
 699  *
 700  * PARAMS
 701  *  hProv   [I] Handle of a CSP.
 702  *  Algid   [I] Identifies the hash algorithm to use.
 703  *  hKey    [I] Key for the hash (if required).
 704  *  dwFlags [I] Reserved for future use and must be NULL.
 705  *  phHash  [O] Address of the future handle to the new hash object.
 706  *
 707  * RETURNS
 708  *  Success: TRUE
 709  *  Failure: FALSE
 710  *
 711  * NOTES
 712  *  If the algorithm is a keyed hash, hKey is the key.
 713  */
 714 BOOL WINAPI CryptCreateHash (HCRYPTPROV hProv, ALG_ID Algid, HCRYPTKEY hKey,
 715                 DWORD dwFlags, HCRYPTHASH *phHash)
 716 {
 717         PCRYPTPROV prov = (PCRYPTPROV)hProv;
 718         PCRYPTKEY key = (PCRYPTKEY)hKey;
 719         PCRYPTHASH hash;
 720
 721         TRACE("(0x%lx, 0x%x, 0x%lx, %08x, %p)\n", hProv, Algid, hKey, dwFlags, phHash);
 722
 723         if (!prov)
 724         {
 725                 SetLastError(ERROR_INVALID_HANDLE);
 726                 return FALSE;
 727         }
 728         if (!phHash || prov->dwMagic != MAGIC_CRYPTPROV)
 729         {
 730                 SetLastError(ERROR_INVALID_PARAMETER);
 731                 return FALSE;
 732         }
 733         if (dwFlags)
 734         {
 735                 SetLastError(NTE_BAD_FLAGS);
 736                 return FALSE;
 737         }
 738         if ( !(hash = CRYPT_Alloc(sizeof(CRYPTHASH))) )
 739         {
 740                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 741                 return FALSE;
 742         }
 743
 744         hash->pProvider = prov;
 745
 746         if (prov->pFuncs->pCPCreateHash(prov->hPrivate, Algid,
 747                         key ? key->hPrivate : 0, 0, &hash->hPrivate))
 748         {
 749             *phHash = (HCRYPTHASH)hash;
 750             return TRUE;
 751         }
 752
 753         /* CSP error! */
 754         CRYPT_Free(hash);
 755         *phHash = 0;
 756         return FALSE;
 757 }
 758
 759 /******************************************************************************
 760  * CryptDecrypt (ADVAPI32.@)
 761  *
 762  * Decrypts data encrypted by CryptEncrypt.
 763  *
 764  * PARAMS
 765  *  hKey       [I] Handle to the decryption key.
 766  *  hHash      [I] Handle to a hash object.
 767  *  Final      [I] TRUE if this is the last section to be decrypted.
 768  *  dwFlags    [I] Reserved for future use. Can be CRYPT_OAEP.
 769  *  pbData     [I/O] Buffer that holds the encrypted data. Holds decrypted
 770  *                   data on return
 771  *  pdwDataLen [I/O] Length of pbData before and after the call.
 772  *
 773  *  RETURNS
 774  *   Success: TRUE
 775  *   Failure: FALSE
 776  */
 777 BOOL WINAPI CryptDecrypt (HCRYPTKEY hKey, HCRYPTHASH hHash, BOOL Final,
 778                 DWORD dwFlags, BYTE *pbData, DWORD *pdwDataLen)
 779 {
 780         PCRYPTPROV prov;
 781         PCRYPTKEY key = (PCRYPTKEY)hKey;
 782         PCRYPTHASH hash = (PCRYPTHASH)hHash;
 783
 784         TRACE("(0x%lx, 0x%lx, %d, %08x, %p, %p)\n", hKey, hHash, Final, dwFlags, pbData, pdwDataLen);
 785
 786         if (!key || !pbData || !pdwDataLen || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
 787         {
 788                 SetLastError(ERROR_INVALID_PARAMETER);
 789                 return FALSE;
 790         }
 791
 792         prov = key->pProvider;
 793         return prov->pFuncs->pCPDecrypt(prov->hPrivate, key->hPrivate, hash ? hash->hPrivate : 0,
 794                         Final, dwFlags, pbData, pdwDataLen);
 795 }
 796
 797 /******************************************************************************
 798  * CryptDeriveKey (ADVAPI32.@)
 799  *
 800  * Generates session keys derived from a base data value.
 801  *
 802  * PARAMS
 803  *  hProv     [I] Handle to a CSP.
 804  *  Algid     [I] Identifies the symmetric encryption algorithm to use.
 805  *  hBaseData [I] Handle to a hash object.
 806  *  dwFlags   [I] Type of key to generate.
 807  *  phKey     [I/O] Address of the newly generated key.
 808  *
 809  * RETURNS
 810  *  Success: TRUE
 811  *  Failure: FALSE
 812  */
 813 BOOL WINAPI CryptDeriveKey (HCRYPTPROV hProv, ALG_ID Algid, HCRYPTHASH hBaseData,
 814                 DWORD dwFlags, HCRYPTKEY *phKey)
 815 {
 816         PCRYPTPROV prov = (PCRYPTPROV)hProv;
 817         PCRYPTHASH hash = (PCRYPTHASH)hBaseData;
 818         PCRYPTKEY key;
 819
 820         TRACE("(0x%lx, 0x%08x, 0x%lx, 0x%08x, %p)\n", hProv, Algid, hBaseData, dwFlags, phKey);
 821
 822         if (!prov || !hash)
 823         {
 824                 SetLastError(ERROR_INVALID_HANDLE);
 825                 return FALSE;
 826         }
 827         if (!phKey || prov->dwMagic != MAGIC_CRYPTPROV)
 828         {
 829                 SetLastError(ERROR_INVALID_PARAMETER);
 830                 return FALSE;
 831         }
 832         if ( !(key = CRYPT_Alloc(sizeof(CRYPTKEY))) )
 833         {
 834                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 835                 return FALSE;
 836         }
 837
 838         key->pProvider = prov;
 839         if (prov->pFuncs->pCPDeriveKey(prov->hPrivate, Algid, hash->hPrivate, dwFlags, &key->hPrivate))
 840         {
 841             *phKey = (HCRYPTKEY)key;
 842             return TRUE;
 843         }
 844
 845         /* CSP error! */
 846         CRYPT_Free(key);
 847         *phKey = 0;
 848         return FALSE;
 849 }
 850
 851 /******************************************************************************
 852  * CryptDestroyHash (ADVAPI32.@)
 853  *
 854  * Destroys the hash object referenced by hHash.
 855  *
 856  * PARAMS
 857  *  hHash [I] Handle of the hash object to be destroyed.
 858  *
 859  * RETURNS
 860  *  Success: TRUE
 861  *  Failure: FALSE
 862  */
 863 BOOL WINAPI CryptDestroyHash (HCRYPTHASH hHash)
 864 {
 865         PCRYPTHASH hash = (PCRYPTHASH)hHash;
 866         PCRYPTPROV prov;
 867         BOOL ret;
 868
 869         TRACE("(0x%lx)\n", hHash);
 870
 871         if (!hash)
 872         {
 873                 SetLastError(ERROR_INVALID_HANDLE);
 874                 return FALSE;
 875         }
 876
 877         if (!hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
 878         {
 879                 SetLastError(ERROR_INVALID_PARAMETER);
 880                 return FALSE;
 881         }
 882
 883         prov = hash->pProvider;
 884         ret = prov->pFuncs->pCPDestroyHash(prov->hPrivate, hash->hPrivate);
 885         CRYPT_Free(hash);
 886         return ret;
 887 }
 888
 889 /******************************************************************************
 890  * CryptDestroyKey (ADVAPI32.@)
 891  *
 892  * Releases the handle referenced by hKey.
 893  *
 894  * PARAMS
 895  *  hKey [I] Handle of the key to be destroyed.
 896  *
 897  * RETURNS
 898  *  Success: TRUE
 899  *  Failure: FALSE
 900  */
 901 BOOL WINAPI CryptDestroyKey (HCRYPTKEY hKey)
 902 {
 903         PCRYPTKEY key = (PCRYPTKEY)hKey;
 904         PCRYPTPROV prov;
 905         BOOL ret;
 906
 907         TRACE("(0x%lx)\n", hKey);
 908
 909         if (!key)
 910         {
 911                 SetLastError(ERROR_INVALID_HANDLE);
 912                 return FALSE;
 913         }
 914
 915         if (!key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
 916         {
 917                 SetLastError(ERROR_INVALID_PARAMETER);
 918                 return FALSE;
 919         }
 920
 921         prov = key->pProvider;
 922         ret = prov->pFuncs->pCPDestroyKey(prov->hPrivate, key->hPrivate);
 923         CRYPT_Free(key);
 924         return ret;
 925 }
 926
 927 /******************************************************************************
 928  * CryptDuplicateHash (ADVAPI32.@)
 929  *
 930  * Duplicates a hash.
 931  *
 932  * PARAMS
 933  *  hHash       [I] Handle to the hash to be copied.
 934  *  pdwReserved [I] Reserved for future use and must be zero.
 935  *  dwFlags     [I] Reserved for future use and must be zero.
 936  *  phHash      [O] Address of the handle to receive the copy.
 937  *
 938  * RETURNS
 939  *  Success: TRUE
 940  *  Failure: FALSE
 941  */
 942 BOOL WINAPI CryptDuplicateHash (HCRYPTHASH hHash, DWORD *pdwReserved,
 943                 DWORD dwFlags, HCRYPTHASH *phHash)
 944 {
 945         PCRYPTPROV prov;
 946         PCRYPTHASH orghash, newhash;
 947
 948         TRACE("(0x%lx, %p, %08x, %p)\n", hHash, pdwReserved, dwFlags, phHash);
 949
 950         orghash = (PCRYPTHASH)hHash;
 951         if (!orghash || pdwReserved || !phHash || !orghash->pProvider ||
 952                 orghash->pProvider->dwMagic != MAGIC_CRYPTPROV)
 953         {
 954                 SetLastError(ERROR_INVALID_PARAMETER);
 955                 return FALSE;
 956         }
 957
 958         prov = orghash->pProvider;
 959         if (!prov->pFuncs->pCPDuplicateHash)
 960         {
 961                 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 962                 return FALSE;
 963         }
 964
 965         if ( !(newhash = CRYPT_Alloc(sizeof(CRYPTHASH))) )
 966         {
 967                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 968                 return FALSE;
 969         }
 970
 971         newhash->pProvider = prov;
 972         if (prov->pFuncs->pCPDuplicateHash(prov->hPrivate, orghash->hPrivate, pdwReserved, dwFlags, &newhash->hPrivate))
 973         {
 974                 *phHash = (HCRYPTHASH)newhash;
 975                 return TRUE;
 976         }
 977         CRYPT_Free(newhash);
 978         return FALSE;
 979 }
 980
 981 /******************************************************************************
 982  * CryptDuplicateKey (ADVAPI32.@)
 983  *
 984  * Duplicate a key and the key's state.
 985  *
 986  * PARAMS
 987  *  hKey        [I] Handle of the key to copy.
 988  *  pdwReserved [I] Reserved for future use and must be NULL.
 989  *  dwFlags     [I] Reserved for future use and must be zero.
 990  *  phKey       [I] Address of the handle to the duplicated key.
 991  *
 992  * RETURNS
 993  *  Success: TRUE
 994  *  Failure: FALSE
 995  */
 996 BOOL WINAPI CryptDuplicateKey (HCRYPTKEY hKey, DWORD *pdwReserved, DWORD dwFlags, HCRYPTKEY *phKey)
 997 {
 998         PCRYPTPROV prov;
 999         PCRYPTKEY orgkey, newkey;
1000
1001         TRACE("(0x%lx, %p, %08x, %p)\n", hKey, pdwReserved, dwFlags, phKey);
1002
1003         orgkey = (PCRYPTKEY)hKey;
1004         if (!orgkey || pdwReserved || !phKey || !orgkey->pProvider ||
1005                 orgkey->pProvider->dwMagic != MAGIC_CRYPTPROV)
1006         {
1007                 SetLastError(ERROR_INVALID_PARAMETER);
1008                 return FALSE;
1009         }
1010
1011         prov = orgkey->pProvider;
1012         if (!prov->pFuncs->pCPDuplicateKey)
1013         {
1014                 SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1015                 return FALSE;
1016         }
1017
1018         if ( !(newkey = CRYPT_Alloc(sizeof(CRYPTKEY))) )
1019         {
1020                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1021                 return FALSE;
1022         }
1023
1024         newkey->pProvider = prov;
1025         if (prov->pFuncs->pCPDuplicateKey(prov->hPrivate, orgkey->hPrivate, pdwReserved, dwFlags, &newkey->hPrivate))
1026         {
1027                 *phKey = (HCRYPTKEY)newkey;
1028                 return TRUE;
1029         }
1030         CRYPT_Free(newkey);
1031         return FALSE;
1032 }
1033
1034 /******************************************************************************
1035  * CryptEncrypt (ADVAPI32.@)
1036  *
1037  * Encrypts data.
1038  *
1039  * PARAMS
1040  *  hKey       [I] Handle to the encryption key.
1041  *  hHash      [I] Handle to a hash object.
1042  *  Final      [I] TRUE if this is the last section to encrypt.
1043  *  dwFlags    [I] Can be CRYPT_OAEP.
1044  *  pbData     [I/O] Data to be encrypted. Contains encrypted data after call.
1045  *  pdwDataLen [I/O] Length of the data to encrypt. Contains the length of the
1046  *                   encrypted data after call.
1047  *  dwBufLen   [I] Length of the input pbData buffer.
1048  *
1049  * RETURNS
1050  *  Success: TRUE
1051  *  Failure: FALSE
1052  *
1053  *  NOTES
1054  *   If pbData is NULL, CryptEncrypt determines stores the number of bytes
1055  *   required for the returned data in pdwDataLen.
1056  */
1057 BOOL WINAPI CryptEncrypt (HCRYPTKEY hKey, HCRYPTHASH hHash, BOOL Final,
1058                 DWORD dwFlags, BYTE *pbData, DWORD *pdwDataLen, DWORD dwBufLen)
1059 {
1060         PCRYPTPROV prov;
1061         PCRYPTKEY key = (PCRYPTKEY)hKey;
1062         PCRYPTHASH hash = (PCRYPTHASH)hHash;
1063
1064         TRACE("(0x%lx, 0x%lx, %d, %08x, %p, %p, %d)\n", hKey, hHash, Final, dwFlags, pbData, pdwDataLen, dwBufLen);
1065
1066         if (!key || !pdwDataLen || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
1067         {
1068                 SetLastError(ERROR_INVALID_PARAMETER);
1069                 return FALSE;
1070         }
1071
1072         prov = key->pProvider;
1073         return prov->pFuncs->pCPEncrypt(prov->hPrivate, key->hPrivate, hash ? hash->hPrivate : 0,
1074                         Final, dwFlags, pbData, pdwDataLen, dwBufLen);
1075 }
1076
1077 /******************************************************************************
1078  * CryptEnumProvidersW (ADVAPI32.@)
1079  *
1080  * Returns the next available CSP.
1081  *
1082  * PARAMS
1083  *  dwIndex     [I] Index of the next provider to be enumerated.
1084  *  pdwReserved [I] Reserved for future use and must be NULL.
1085  *  dwFlags     [I] Reserved for future use and must be zero.
1086  *  pdwProvType [O] DWORD designating the type of the provider.
1087  *  pszProvName [O] Buffer that receives data from the provider.
1088  *  pcbProvName [I/O] Specifies the size of pszProvName. Contains the number
1089  *                    of bytes stored in the buffer on return.
1090  *
1091  *  RETURNS
1092  *   Success: TRUE
1093  *   Failure: FALSE
1094  *
1095  *  NOTES
1096  *   If pszProvName is NULL, CryptEnumProvidersW sets the size of the name
1097  *   for memory allocation purposes.
1098  */
1099 BOOL WINAPI CryptEnumProvidersW (DWORD dwIndex, DWORD *pdwReserved,
1100                 DWORD dwFlags, DWORD *pdwProvType, LPWSTR pszProvName, DWORD *pcbProvName)
1101 {
1102         HKEY hKey;
1103         static const WCHAR providerW[] = {
1104                 'S','o','f','t','w','a','r','e','\\',
1105                 'M','i','c','r','o','s','o','f','t','\\',
1106                 'C','r','y','p','t','o','g','r','a','p','h','y','\\',
1107                 'D','e','f','a','u','l','t','s','\\',
1108                 'P','r','o','v','i','d','e','r',0
1109         };
1110         static const WCHAR typeW[] = {'T','y','p','e',0};
1111
1112         TRACE("(%d, %p, %d, %p, %p, %p)\n", dwIndex, pdwReserved, dwFlags,
1113                         pdwProvType, pszProvName, pcbProvName);
1114
1115         if (pdwReserved || !pcbProvName)
1116         {
1117                 SetLastError(ERROR_INVALID_PARAMETER);
1118                 return FALSE;
1119         }
1120         if (dwFlags)
1121         {
1122                 SetLastError(NTE_BAD_FLAGS);
1123                 return FALSE;
1124         }
1125
1126         if (RegOpenKeyW(HKEY_LOCAL_MACHINE, providerW, &hKey))
1127         {
1128                 SetLastError(NTE_FAIL);
1129                 return FALSE;
1130         }
1131
1132         if (!pszProvName)
1133         {
1134                 DWORD numkeys;
1135                 WCHAR *provNameW;
1136
1137                 RegQueryInfoKeyW(hKey, NULL, NULL, NULL, &numkeys, pcbProvName,
1138                                  NULL, NULL, NULL, NULL, NULL, NULL);
1139
1140                 if (!(provNameW = CRYPT_Alloc(*pcbProvName * sizeof(WCHAR))))
1141                 {
1142                         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1143                         return FALSE;
1144                 }
1145
1146                 RegEnumKeyExW(hKey, dwIndex, provNameW, pcbProvName, NULL, NULL, NULL, NULL);
1147                 CRYPT_Free(provNameW);
1148                 (*pcbProvName)++;
1149                 *pcbProvName *= sizeof(WCHAR);
1150
1151                 if (dwIndex >= numkeys)
1152                 {
1153                         SetLastError(ERROR_NO_MORE_ITEMS);
1154                         return FALSE;
1155                 }
1156         } else {
1157                 DWORD size = sizeof(DWORD);
1158                 DWORD result;
1159                 HKEY subkey;
1160
1161                 result = RegEnumKeyW(hKey, dwIndex, pszProvName, *pcbProvName / sizeof(WCHAR));
1162                 if (result)
1163                 {
1164                         SetLastError(result);
1165                         return FALSE;
1166                 }
1167                 if (RegOpenKeyW(hKey, pszProvName, &subkey))
1168                         return FALSE;
1169                 if (RegQueryValueExW(subkey, typeW, NULL, NULL, (BYTE*)pdwProvType, &size))
1170                         return FALSE;
1171                 RegCloseKey(subkey);
1172         }
1173         RegCloseKey(hKey);
1174         return TRUE;
1175 }
1176
1177 /******************************************************************************
1178  * CryptEnumProvidersA (ADVAPI32.@)
1179  *
1180  * See CryptEnumProvidersW.
1181  */
1182 BOOL WINAPI CryptEnumProvidersA (DWORD dwIndex, DWORD *pdwReserved,
1183                 DWORD dwFlags, DWORD *pdwProvType, LPSTR pszProvName, DWORD *pcbProvName)
1184 {
1185         PWSTR str = NULL;
1186         DWORD bufsize;
1187         BOOL ret; /* = FALSE; */
1188
1189         TRACE("(%d, %p, %08x, %p, %p, %p)\n", dwIndex, pdwReserved, dwFlags,
1190                         pdwProvType, pszProvName, pcbProvName);
1191
1192         if(!CryptEnumProvidersW(dwIndex, pdwReserved, dwFlags, pdwProvType, NULL, &bufsize))
1193                 return FALSE;
1194         if ( pszProvName && !(str = CRYPT_Alloc(bufsize)) )
1195         {
1196                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1197                 return FALSE;
1198         }
1199         ret = CryptEnumProvidersW(dwIndex, pdwReserved, dwFlags, pdwProvType, str, &bufsize);
1200         if (str)
1201                 CRYPT_UnicodeToANSI(str, &pszProvName, *pcbProvName);
1202         *pcbProvName = bufsize / sizeof(WCHAR);  /* FIXME: not correct */
1203         if (str)
1204         {
1205                 CRYPT_Free(str);
1206                 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
1207                 {
1208                         SetLastError(ERROR_MORE_DATA);
1209                         return FALSE;
1210                 }
1211         }
1212         return ret;
1213 }
1214
1215 /******************************************************************************
1216  * CryptEnumProviderTypesW (ADVAPI32.@)
1217  *
1218  * Retrieves the next type of CSP supported.
1219  *
1220  * PARAMS
1221  *  dwIndex     [I] Index of the next provider to be enumerated.
1222  *  pdwReserved [I] Reserved for future use and must be NULL.
1223  *  dwFlags     [I] Reserved for future use and must be zero.
1224  *  pdwProvType [O] DWORD designating the type of the provider.
1225  *  pszTypeName [O] Buffer that receives data from the provider type.
1226  *  pcbTypeName [I/O] Specifies the size of pszTypeName. Contains the number
1227  *                    of bytes stored in the buffer on return.
1228  *
1229  *  RETURNS
1230  *   Success: TRUE
1231  *   Failure: FALSE
1232  *
1233  *  NOTES
1234  *   If pszTypeName is NULL, CryptEnumProviderTypesW sets the size of the name
1235  *   for memory allocation purposes.
1236  */
1237 BOOL WINAPI CryptEnumProviderTypesW (DWORD dwIndex, DWORD *pdwReserved,
1238                 DWORD dwFlags, DWORD *pdwProvType, LPWSTR pszTypeName, DWORD *pcbTypeName)
1239 {
1240         HKEY hKey, hSubkey;
1241         DWORD keylen, numkeys, dwType;
1242         PWSTR keyname, ch;
1243         DWORD result;
1244         static const WCHAR KEYSTR[] = {
1245                 'S','o','f','t','w','a','r','e','\\',
1246                 'M','i','c','r','o','s','o','f','t','\\',
1247                 'C','r','y','p','t','o','g','r','a','p','h','y','\\',
1248                 'D','e','f','a','u','l','t','s','\\',
1249                 'P','r','o','v','i','d','e','r',' ','T','y','p','e','s',0
1250         };
1251         static const WCHAR typenameW[] = {'T','y','p','e','N','a','m','e',0};
1252
1253         TRACE("(%d, %p, %08x, %p, %p, %p)\n", dwIndex, pdwReserved,
1254                 dwFlags, pdwProvType, pszTypeName, pcbTypeName);
1255
1256         if (pdwReserved || !pdwProvType || !pcbTypeName)
1257         {
1258                 SetLastError(ERROR_INVALID_PARAMETER);
1259                 return FALSE;
1260         }
1261         if (dwFlags)
1262         {
1263                 SetLastError(NTE_BAD_FLAGS);
1264                 return FALSE;
1265         }
1266
1267         if (RegOpenKeyW(HKEY_LOCAL_MACHINE, KEYSTR, &hKey))
1268                 return FALSE;
1269
1270         RegQueryInfoKeyW(hKey, NULL, NULL, NULL, &numkeys, &keylen, NULL, NULL, NULL, NULL, NULL, NULL);
1271         if (dwIndex >= numkeys)
1272         {
1273                 SetLastError(ERROR_NO_MORE_ITEMS);
1274                 return FALSE;
1275         }
1276         keylen++;
1277         if ( !(keyname = CRYPT_Alloc(keylen*sizeof(WCHAR))) )
1278         {
1279                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1280                 return FALSE;
1281         }
1282         if ( RegEnumKeyW(hKey, dwIndex, keyname, keylen) ) {
1283                 CRYPT_Free(keyname);
1284                 return FALSE;
1285         }
1286         RegOpenKeyW(hKey, keyname, &hSubkey);
1287         ch = keyname + strlenW(keyname);
1288         /* Convert "Type 000" to 0, etc/ */
1289         *pdwProvType = *(--ch) - '0';
1290         *pdwProvType += (*(--ch) - '0') * 10;
1291         *pdwProvType += (*(--ch) - '0') * 100;
1292         CRYPT_Free(keyname);
1293
1294         result = RegQueryValueExW(hSubkey, typenameW, NULL, &dwType, (LPBYTE)pszTypeName, pcbTypeName);
1295         if (result)
1296         {
1297                 SetLastError(result);
1298                 return FALSE;
1299         }
1300
1301         RegCloseKey(hSubkey);
1302         RegCloseKey(hKey);
1303         return TRUE;
1304 }
1305
1306 /******************************************************************************
1307  * CryptEnumProviderTypesA (ADVAPI32.@)
1308  *
1309  * See CryptEnumProviderTypesW.
1310  */
1311 BOOL WINAPI CryptEnumProviderTypesA (DWORD dwIndex, DWORD *pdwReserved,
1312                 DWORD dwFlags, DWORD *pdwProvType, LPSTR pszTypeName, DWORD *pcbTypeName)
1313 {
1314         PWSTR str = NULL;
1315         DWORD bufsize;
1316         BOOL ret;
1317
1318         TRACE("(%d, %p, %08x, %p, %p, %p)\n", dwIndex, pdwReserved, dwFlags,
1319                         pdwProvType, pszTypeName, pcbTypeName);
1320
1321         if(!CryptEnumProviderTypesW(dwIndex, pdwReserved, dwFlags, pdwProvType, NULL, &bufsize))
1322                 return FALSE;
1323         if ( pszTypeName && !(str = CRYPT_Alloc(bufsize)) )
1324         {
1325                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1326                 return FALSE;
1327         }
1328         ret = CryptEnumProviderTypesW(dwIndex, pdwReserved, dwFlags, pdwProvType, str, &bufsize);
1329         if (str)
1330                 CRYPT_UnicodeToANSI(str, &pszTypeName, *pcbTypeName);
1331         *pcbTypeName = bufsize / sizeof(WCHAR);
1332         if (str)
1333         {
1334                 CRYPT_Free(str);
1335                 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
1336                 {
1337                         SetLastError(ERROR_MORE_DATA);
1338                         return FALSE;
1339                 }
1340         }
1341         return ret;
1342 }
1343
1344 /******************************************************************************
1345  * CryptExportKey (ADVAPI32.@)
1346  *
1347  * Exports a cryptographic key from a CSP.
1348  *
1349  * PARAMS
1350  *  hKey       [I] Handle to the key to export.
1351  *  hExpKey    [I] Handle to a cryptographic key of the end user.
1352  *  dwBlobType [I] Type of BLOB to be exported.
1353  *  dwFlags    [I] CRYPT_DESTROYKEY/SSL2_FALLBACK/OAEP.
1354  *  pbData     [O] Buffer to receive BLOB data.
1355  *  pdwDataLen [I/O] Specifies the size of pbData.
1356  *
1357  * RETURNS
1358  *  Success: TRUE
1359  *  Failure: FALSE
1360  *
1361  * NOTES
1362  *  if pbData is NULL, CryptExportKey sets pdwDataLen as the size of the
1363  *  buffer needed to hold the BLOB.
1364  */
1365 BOOL WINAPI CryptExportKey (HCRYPTKEY hKey, HCRYPTKEY hExpKey, DWORD dwBlobType,
1366                 DWORD dwFlags, BYTE *pbData, DWORD *pdwDataLen)
1367 {
1368         PCRYPTPROV prov;
1369         PCRYPTKEY key = (PCRYPTKEY)hKey, expkey = (PCRYPTKEY)hExpKey;
1370
1371         TRACE("(0x%lx, 0x%lx, %d, %08x, %p, %p)\n", hKey, hExpKey, dwBlobType, dwFlags, pbData, pdwDataLen);
1372
1373         if (!key || !pdwDataLen || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
1374         {
1375                 SetLastError(ERROR_INVALID_PARAMETER);
1376                 return FALSE;
1377         }
1378
1379         prov = key->pProvider;
1380         return prov->pFuncs->pCPExportKey(prov->hPrivate, key->hPrivate, expkey ? expkey->hPrivate : 0,
1381                         dwBlobType, dwFlags, pbData, pdwDataLen);
1382 }
1383
1384 /******************************************************************************
1385  * CryptGenKey (ADVAPI32.@)
1386  *
1387  * Generates a random cryptographic session key or a pub/priv key pair.
1388  *
1389  * PARAMS
1390  *  hProv   [I] Handle to a CSP.
1391  *  Algid   [I] Algorithm to use to make key.
1392  *  dwFlags [I] Specifies type of key to make.
1393  *  phKey   [I] Address of the handle to which the new key is copied.
1394  *
1395  *  RETURNS
1396  *   Success: TRUE
1397  *   Failure: FALSE
1398  */
1399 BOOL WINAPI CryptGenKey (HCRYPTPROV hProv, ALG_ID Algid, DWORD dwFlags, HCRYPTKEY *phKey)
1400 {
1401         PCRYPTPROV prov = (PCRYPTPROV)hProv;
1402         PCRYPTKEY key;
1403
1404         TRACE("(0x%lx, %d, %08x, %p)\n", hProv, Algid, dwFlags, phKey);
1405
1406         if (!prov)
1407         {
1408                 SetLastError(ERROR_INVALID_HANDLE);
1409                 return FALSE;
1410         }
1411         if (!phKey || !prov || prov->dwMagic != MAGIC_CRYPTPROV)
1412         {
1413                 SetLastError(ERROR_INVALID_PARAMETER);
1414                 return FALSE;
1415         }
1416         if ( !(key = CRYPT_Alloc(sizeof(CRYPTKEY))) )
1417         {
1418                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1419                 return FALSE;
1420         }
1421
1422         key->pProvider = prov;
1423
1424         if (prov->pFuncs->pCPGenKey(prov->hPrivate, Algid, dwFlags, &key->hPrivate))
1425         {
1426             *phKey = (HCRYPTKEY)key;
1427             return TRUE;
1428         }
1429
1430         /* CSP error! */
1431         CRYPT_Free(key);
1432         return FALSE;
1433 }
1434
1435 /******************************************************************************
1436  * CryptGetDefaultProviderW (ADVAPI32.@)
1437  *
1438  * Finds the default CSP of a certain provider type.
1439  *
1440  * PARAMS
1441  *  dwProvType  [I] Provider type to look for.
1442  *  pdwReserved [I] Reserved for future use and must be NULL.
1443  *  dwFlags     [I] CRYPT_MACHINE_DEFAULT/USER_DEFAULT
1444  *  pszProvName [O] Name of the default CSP.
1445  *  pcbProvName [I/O] Size of pszProvName
1446  *
1447  * RETURNS
1448  *  Success: TRUE
1449  *  Failure: FALSE
1450  *
1451  * NOTES
1452  *  If pszProvName is NULL, pcbProvName will hold the size of the buffer for
1453  *  memory allocation purposes on return.
1454  */
1455 BOOL WINAPI CryptGetDefaultProviderW (DWORD dwProvType, DWORD *pdwReserved,
1456                 DWORD dwFlags, LPWSTR pszProvName, DWORD *pcbProvName)
1457 {
1458         HKEY hKey;
1459         PWSTR keyname;
1460         DWORD result;
1461         static const WCHAR nameW[] = {'N','a','m','e',0};
1462
1463         if (pdwReserved || !pcbProvName)
1464         {
1465                 SetLastError(ERROR_INVALID_PARAMETER);
1466                 return FALSE;
1467         }
1468         if (dwFlags & ~(CRYPT_USER_DEFAULT | CRYPT_MACHINE_DEFAULT))
1469         {
1470                 SetLastError(NTE_BAD_FLAGS);
1471                 return FALSE;
1472         }
1473         if (dwProvType > 999)
1474         {
1475                 SetLastError(NTE_BAD_PROV_TYPE);
1476                 return FALSE;
1477         }
1478         if ( !(keyname = CRYPT_GetTypeKeyName(dwProvType, dwFlags & CRYPT_USER_DEFAULT)) )
1479         {
1480                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1481                 return FALSE;
1482         }
1483         if (RegOpenKeyW((dwFlags & CRYPT_USER_DEFAULT) ?  HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE ,keyname, &hKey))
1484         {
1485                 CRYPT_Free(keyname);
1486                 SetLastError(NTE_PROV_TYPE_NOT_DEF);
1487                 return FALSE;
1488         }
1489         CRYPT_Free(keyname);
1490
1491         result = RegQueryValueExW(hKey, nameW, NULL, NULL, (LPBYTE)pszProvName, pcbProvName);
1492         if (result)
1493         {
1494                 if (result != ERROR_MORE_DATA)
1495                         SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
1496                 else
1497                         SetLastError(result);
1498
1499                 return FALSE;
1500         }
1501
1502         RegCloseKey(hKey);
1503         return TRUE;
1504 }
1505
1506 /******************************************************************************
1507  * CryptGetDefaultProviderA (ADVAPI32.@)
1508  *
1509  * See CryptGetDefaultProviderW.
1510  */
1511 BOOL WINAPI CryptGetDefaultProviderA (DWORD dwProvType, DWORD *pdwReserved,
1512                 DWORD dwFlags, LPSTR pszProvName, DWORD *pcbProvName)
1513 {
1514         PWSTR str = NULL;
1515         DWORD bufsize;
1516         BOOL ret = FALSE;
1517
1518         TRACE("(%d, %p, %08x, %p, %p)\n", dwProvType, pdwReserved, dwFlags, pszProvName, pcbProvName);
1519
1520         CryptGetDefaultProviderW(dwProvType, pdwReserved, dwFlags, NULL, &bufsize);
1521         if ( pszProvName && !(str = CRYPT_Alloc(bufsize)) )
1522         {
1523                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1524                 return FALSE;
1525         }
1526         ret = CryptGetDefaultProviderW(dwProvType, pdwReserved, dwFlags, str, &bufsize);
1527         if (str)
1528                 CRYPT_UnicodeToANSI(str, &pszProvName, *pcbProvName);
1529         *pcbProvName = bufsize / sizeof(WCHAR);
1530         if (str)
1531         {
1532                 CRYPT_Free(str);
1533                 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER)
1534                 {
1535                         SetLastError(ERROR_MORE_DATA);
1536                         return FALSE;
1537                 }
1538         }
1539         return ret;
1540 }
1541
1542 /******************************************************************************
1543  * CryptGetHashParam (ADVAPI32.@)
1544  *
1545  * Retrieves data that controls the operations of a hash object.
1546  *
1547  * PARAMS
1548  *  hHash      [I] Handle of the hash object to question.
1549  *  dwParam    [I] Query type.
1550  *  pbData     [O] Buffer that receives the value data.
1551  *  pdwDataLen [I/O] Size of the pbData buffer.
1552  *  dwFlags    [I] Reserved for future use and must be zero.
1553  *
1554  * RETURNS
1555  *  Success: TRUE
1556  *  Failure: FALSE
1557  *
1558  * NOTES
1559  *  If pbData is NULL, pdwDataLen will contain the length required.
1560  */
1561 BOOL WINAPI CryptGetHashParam (HCRYPTHASH hHash, DWORD dwParam, BYTE *pbData,
1562                 DWORD *pdwDataLen, DWORD dwFlags)
1563 {
1564         PCRYPTPROV prov;
1565         PCRYPTHASH hash = (PCRYPTHASH)hHash;
1566
1567         TRACE("(0x%lx, %d, %p, %p, %08x)\n", hHash, dwParam, pbData, pdwDataLen, dwFlags);
1568
1569         if (!hash || !pdwDataLen || !hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
1570         {
1571                 SetLastError(ERROR_INVALID_PARAMETER);
1572                 return FALSE;
1573         }
1574
1575         prov = hash->pProvider;
1576         return prov->pFuncs->pCPGetHashParam(prov->hPrivate, hash->hPrivate, dwParam,
1577                         pbData, pdwDataLen, dwFlags);
1578 }
1579
1580 /******************************************************************************
1581  * CryptGetKeyParam (ADVAPI32.@)
1582  *
1583  * Retrieves data that controls the operations of a key.
1584  *
1585  * PARAMS
1586  *  hKey       [I] Handle to they key in question.
1587  *  dwParam    [I] Specifies query type.
1588  *  pbData     [O] Sequence of bytes to receive data.
1589  *  pdwDataLen [I/O] Size of pbData.
1590  *  dwFlags    [I] Reserved for future use and must be zero.
1591  *
1592  * RETURNS
1593  *  Success: TRUE
1594  *  Failure: FALSE
1595  *
1596  * NOTES
1597  *  If pbData is NULL, pdwDataLen is set to the needed length of the buffer.
1598  */
1599 BOOL WINAPI CryptGetKeyParam (HCRYPTKEY hKey, DWORD dwParam, BYTE *pbData,
1600                 DWORD *pdwDataLen, DWORD dwFlags)
1601 {
1602         PCRYPTPROV prov;
1603         PCRYPTKEY key = (PCRYPTKEY)hKey;
1604
1605         TRACE("(0x%lx, %d, %p, %p, %08x)\n", hKey, dwParam, pbData, pdwDataLen, dwFlags);
1606
1607         if (!key || !pdwDataLen || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
1608         {
1609                 SetLastError(ERROR_INVALID_PARAMETER);
1610                 return FALSE;
1611         }
1612
1613         prov = key->pProvider;
1614         return prov->pFuncs->pCPGetKeyParam(prov->hPrivate, key->hPrivate, dwParam,
1615                         pbData, pdwDataLen, dwFlags);
1616 }
1617
1618 /******************************************************************************
1619  * CryptGetProvParam (ADVAPI32.@)
1620  *
1621  * Retrieves parameters that control the operations of a CSP.
1622  *
1623  * PARAMS
1624  *  hProv      [I] Handle of the CSP in question.
1625  *  dwParam    [I] Specifies query type.
1626  *  pbData     [O] Buffer to receive the data.
1627  *  pdwDataLen [I/O] Size of pbData.
1628  *  dwFlags    [I] see MSDN Docs.
1629  *
1630  * RETURNS
1631  *  Success: TRUE
1632  *  Failure: FALSE
1633  *
1634  * NOTES
1635  *  If pbData is NULL, pdwDataLen is set to the needed buffer length.
1636  */
1637 BOOL WINAPI CryptGetProvParam (HCRYPTPROV hProv, DWORD dwParam, BYTE *pbData,
1638                 DWORD *pdwDataLen, DWORD dwFlags)
1639 {
1640         PCRYPTPROV prov = (PCRYPTPROV)hProv;
1641
1642         TRACE("(0x%lx, %d, %p, %p, %08x)\n", hProv, dwParam, pbData, pdwDataLen, dwFlags);
1643
1644         if (!prov || prov->dwMagic != MAGIC_CRYPTPROV)
1645         {
1646                 SetLastError(ERROR_INVALID_PARAMETER);
1647                 return FALSE;
1648         }
1649
1650         return prov->pFuncs->pCPGetProvParam(prov->hPrivate, dwParam, pbData, pdwDataLen, dwFlags);
1651 }
1652
1653 /******************************************************************************
1654  * CryptGetUserKey (ADVAPI32.@)
1655  *
1656  * Gets a handle of one of a user's two public/private key pairs.
1657  *
1658  * PARAMS
1659  *  hProv     [I] Handle of a CSP.
1660  *  dwKeySpec [I] Private key to use.
1661  *  phUserKey [O] Pointer to the handle of the retrieved keys.
1662  *
1663  * RETURNS
1664  *  Success: TRUE
1665  *  Failure: FALSE
1666  */
1667 BOOL WINAPI CryptGetUserKey (HCRYPTPROV hProv, DWORD dwKeySpec, HCRYPTKEY *phUserKey)
1668 {
1669         PCRYPTPROV prov = (PCRYPTPROV)hProv;
1670         PCRYPTKEY key;
1671
1672         TRACE("(0x%lx, %d, %p)\n", hProv, dwKeySpec, phUserKey);
1673
1674         if (!prov)
1675         {
1676                 SetLastError(ERROR_INVALID_HANDLE);
1677                 return FALSE;
1678         }
1679         if (!phUserKey || prov->dwMagic != MAGIC_CRYPTPROV)
1680         {
1681                 SetLastError(ERROR_INVALID_PARAMETER);
1682                 return FALSE;
1683         }
1684         if ( !(key = CRYPT_Alloc(sizeof(CRYPTKEY))) )
1685         {
1686                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1687                 return FALSE;
1688         }
1689
1690         key->pProvider = prov;
1691
1692         if (prov->pFuncs->pCPGetUserKey(prov->hPrivate, dwKeySpec, &key->hPrivate))
1693         {
1694             *phUserKey = (HCRYPTKEY)key;
1695             return TRUE;
1696         }
1697
1698         /* CSP Error */
1699         CRYPT_Free(key);
1700         *phUserKey = 0;
1701         return FALSE;
1702 }
1703
1704 /******************************************************************************
1705  * CryptHashData (ADVAPI32.@)
1706  *
1707  * Adds data to a hash object.
1708  *
1709  * PARAMS
1710  *  hHash     [I] Handle of the hash object.
1711  *  pbData    [I] Buffer of data to be hashed.
1712  *  dwDataLen [I] Number of bytes to add.
1713  *  dwFlags   [I] Can be CRYPT_USERDATA
1714  *
1715  * RETURNS
1716  *  Success: TRUE
1717  *  Failure: FALSE
1718  */
1719 BOOL WINAPI CryptHashData (HCRYPTHASH hHash, const BYTE *pbData, DWORD dwDataLen, DWORD dwFlags)
1720 {
1721         PCRYPTHASH hash = (PCRYPTHASH)hHash;
1722         PCRYPTPROV prov;
1723
1724         TRACE("(0x%lx, %p, %d, %08x)\n", hHash, pbData, dwDataLen, dwFlags);
1725
1726         if (!hash)
1727         {
1728                 SetLastError(ERROR_INVALID_HANDLE);
1729                 return FALSE;
1730         }
1731         if (!hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
1732         {
1733                 SetLastError(ERROR_INVALID_PARAMETER);
1734                 return FALSE;
1735         }
1736
1737         prov = hash->pProvider;
1738         return prov->pFuncs->pCPHashData(prov->hPrivate, hash->hPrivate, pbData, dwDataLen, dwFlags);
1739 }
1740
1741 /******************************************************************************
1742  * CryptHashSessionKey (ADVAPI32.@)
1743  *
1744  * Compute the cryptographic hash of a session key object.
1745  *
1746  * PARAMS
1747  *  hHash   [I] Handle to the hash object.
1748  *  hKey    [I] Handle to the key to be hashed.
1749  *  dwFlags [I] Can be CRYPT_LITTLE_ENDIAN.
1750  *
1751  * RETURNS
1752  *  Success: TRUE
1753  *  Failure: FALSE
1754  */
1755 BOOL WINAPI CryptHashSessionKey (HCRYPTHASH hHash, HCRYPTKEY hKey, DWORD dwFlags)
1756 {
1757         PCRYPTHASH hash = (PCRYPTHASH)hHash;
1758         PCRYPTKEY key = (PCRYPTKEY)hKey;
1759         PCRYPTPROV prov;
1760
1761         TRACE("(0x%lx, 0x%lx, %08x)\n", hHash, hKey, dwFlags);
1762
1763         if (!hash || !key)
1764         {
1765                 SetLastError(ERROR_INVALID_HANDLE);
1766                 return FALSE;
1767         }
1768
1769         if (!hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
1770         {
1771                 SetLastError(ERROR_INVALID_PARAMETER);
1772                 return FALSE;
1773         }
1774
1775         prov = hash->pProvider;
1776         return prov->pFuncs->pCPHashSessionKey(prov->hPrivate, hash->hPrivate, key->hPrivate, dwFlags);
1777 }
1778
1779 /******************************************************************************
1780  * CryptImportKey (ADVAPI32.@)
1781  *
1782  * Transfer a cryptographic key from a key BLOB into a cryptographic service provider (CSP).
1783  *
1784  * PARAMS
1785  *  hProv     [I] Handle of a CSP.
1786  *  pbData    [I] Contains the key to be imported.
1787  *  dwDataLen [I] Length of the key.
1788  *  hPubKey   [I] Cryptographic key that decrypts pdData
1789  *  dwFlags   [I] Used only with a public/private key pair.
1790  *  phKey     [O] Imported key.
1791  *
1792  * RETURNS
1793  *  Success: TRUE
1794  *  Failure: FALSE
1795  */
1796 BOOL WINAPI CryptImportKey (HCRYPTPROV hProv, CONST BYTE *pbData, DWORD dwDataLen,
1797                 HCRYPTKEY hPubKey, DWORD dwFlags, HCRYPTKEY *phKey)
1798 {
1799         PCRYPTPROV prov = (PCRYPTPROV)hProv;
1800         PCRYPTKEY pubkey = (PCRYPTKEY)hPubKey, importkey;
1801
1802         TRACE("(0x%lx, %p, %d, 0x%lx, %08x, %p)\n", hProv, pbData, dwDataLen, hPubKey, dwFlags, phKey);
1803
1804         if (!prov || !pbData || !dwDataLen || !phKey || prov->dwMagic != MAGIC_CRYPTPROV)
1805         {
1806                 SetLastError(ERROR_INVALID_PARAMETER);
1807                 return FALSE;
1808         }
1809
1810         if ( !(importkey = CRYPT_Alloc(sizeof(CRYPTKEY))) )
1811         {
1812                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
1813                 return FALSE;
1814         }
1815
1816         importkey->pProvider = prov;
1817         if (prov->pFuncs->pCPImportKey(prov->hPrivate, pbData, dwDataLen,
1818                         pubkey ? pubkey->hPrivate : 0, dwFlags, &importkey->hPrivate))
1819         {
1820                 *phKey = (HCRYPTKEY)importkey;
1821                 return TRUE;
1822         }
1823
1824         CRYPT_Free(importkey);
1825         return FALSE;
1826 }
1827
1828 /******************************************************************************
1829  * CryptSignHashW (ADVAPI32.@)
1830  *
1831  * Signs data.
1832  *
1833  * PARAMS
1834  *  hHash        [I] Handle of the hash object to be signed.
1835  *  dwKeySpec    [I] Private key to use.
1836  *  sDescription [I] Should be NULL.
1837  *  dwFlags      [I] CRYPT_NOHASHOID/X931_FORMAT.
1838  *  pbSignature  [O] Buffer of the signature data.
1839  *  pdwSigLen    [I/O] Size of the pbSignature buffer.
1840  *
1841  * RETURNS
1842  *  Success: TRUE
1843  *  Failure: FALSE
1844  *
1845  * NOTES
1846  *  Because of security flaws sDescription should not be used and should thus be
1847  *  NULL. It is supported only for compatibility with Microsoft's Cryptographic
1848  *  Providers.
1849  */
1850 BOOL WINAPI CryptSignHashW (HCRYPTHASH hHash, DWORD dwKeySpec, LPCWSTR sDescription,
1851                 DWORD dwFlags, BYTE *pbSignature, DWORD *pdwSigLen)
1852 {
1853         PCRYPTHASH hash = (PCRYPTHASH)hHash;
1854         PCRYPTPROV prov;
1855
1856         TRACE("(0x%lx, %d, %s, %08x, %p, %p)\n",
1857                 hHash, dwKeySpec, debugstr_w(sDescription), dwFlags, pbSignature, pdwSigLen);
1858
1859         if (!hash)
1860         {
1861                 SetLastError(ERROR_INVALID_HANDLE);
1862                 return FALSE;
1863         }
1864         if (!pdwSigLen || !hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
1865         {
1866                 SetLastError(ERROR_INVALID_PARAMETER);
1867                 return FALSE;
1868         }
1869
1870         prov = hash->pProvider;
1871         return prov->pFuncs->pCPSignHash(prov->hPrivate, hash->hPrivate, dwKeySpec, sDescription,
1872                 dwFlags, pbSignature, pdwSigLen);
1873 }
1874
1875 /******************************************************************************
1876  * CryptSignHashA (ADVAPI32.@)
1877  *
1878  * See CryptSignHashW.
1879  */
1880 BOOL WINAPI CryptSignHashA (HCRYPTHASH hHash, DWORD dwKeySpec, LPCSTR sDescription,
1881                 DWORD dwFlags, BYTE *pbSignature, DWORD *pdwSigLen)
1882 {
1883         LPWSTR wsDescription;
1884         BOOL result;
1885
1886         TRACE("(0x%lx, %d, %s, %08x, %p, %p)\n",
1887                 hHash, dwKeySpec, debugstr_a(sDescription), dwFlags, pbSignature, pdwSigLen);
1888
1889         CRYPT_ANSIToUnicode(sDescription, &wsDescription, -1);
1890         result = CryptSignHashW(hHash, dwKeySpec, wsDescription, dwFlags, pbSignature, pdwSigLen);
1891         CRYPT_Free(wsDescription);
1892
1893         return result;
1894 }
1895
1896 /******************************************************************************
1897  * CryptSetHashParam (ADVAPI32.@)
1898  *
1899  * Customizes the operations of a hash object.
1900  *
1901  * PARAMS
1902  *  hHash   [I] Handle of the hash object to set parameters.
1903  *  dwParam [I] HP_HMAC_INFO/HASHVAL.
1904  *  pbData  [I] Value data buffer.
1905  *  dwFlags [I] Reserved for future use and must be zero.
1906  *
1907  * RETURNS
1908  *  Success: TRUE
1909  *  Failure: FALSE
1910  */
1911 BOOL WINAPI CryptSetHashParam (HCRYPTHASH hHash, DWORD dwParam, CONST BYTE *pbData, DWORD dwFlags)
1912 {
1913         PCRYPTPROV prov;
1914         PCRYPTHASH hash = (PCRYPTHASH)hHash;
1915
1916         TRACE("(0x%lx, %d, %p, %08x)\n", hHash, dwParam, pbData, dwFlags);
1917
1918         if (!hash || !pbData || !hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
1919         {
1920                 SetLastError(ERROR_INVALID_PARAMETER);
1921                 return FALSE;
1922         }
1923
1924         prov = hash->pProvider;
1925         return prov->pFuncs->pCPSetHashParam(prov->hPrivate, hash->hPrivate,
1926                         dwParam, pbData, dwFlags);
1927 }
1928
1929 /******************************************************************************
1930  * CryptSetKeyParam (ADVAPI32.@)
1931  *
1932  * Customizes a session key's operations.
1933  *
1934  * PARAMS
1935  *  hKey    [I] Handle to the key to set values.
1936  *  dwParam [I] See MSDN Doc.
1937  *  pbData  [I] Buffer of values to set.
1938  *  dwFlags [I] Only used when dwParam == KP_ALGID.
1939  *
1940  * RETURNS
1941  *  Success: TRUE
1942  *  Failure: FALSE
1943  */
1944 BOOL WINAPI CryptSetKeyParam (HCRYPTKEY hKey, DWORD dwParam, CONST BYTE *pbData, DWORD dwFlags)
1945 {
1946         PCRYPTPROV prov;
1947         PCRYPTKEY key = (PCRYPTKEY)hKey;
1948
1949         TRACE("(0x%lx, %d, %p, %08x)\n", hKey, dwParam, pbData, dwFlags);
1950
1951         if (!key || !pbData || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
1952         {
1953                 SetLastError(ERROR_INVALID_PARAMETER);
1954                 return FALSE;
1955         }
1956
1957         prov = key->pProvider;
1958         return prov->pFuncs->pCPSetKeyParam(prov->hPrivate, key->hPrivate,
1959                         dwParam, pbData, dwFlags);
1960 }
1961
1962 /******************************************************************************
1963  * CryptSetProviderA (ADVAPI32.@)
1964  *
1965  * Specifies the current user's default CSP.
1966  *
1967  * PARAMS
1968  *  pszProvName [I] Name of the new default CSP.
1969  *  dwProvType  [I] Provider type of the CSP.
1970  *
1971  * RETURNS
1972  *  Success: TRUE
1973  *  Failure: FALSE
1974  */
1975 BOOL WINAPI CryptSetProviderA (LPCSTR pszProvName, DWORD dwProvType)
1976 {
1977         TRACE("(%s, %d)\n", pszProvName, dwProvType);
1978         return CryptSetProviderExA(pszProvName, dwProvType, NULL, CRYPT_USER_DEFAULT);
1979 }
1980
1981 /******************************************************************************
1982  * CryptSetProviderW (ADVAPI32.@)
1983  *
1984  * See CryptSetProviderA.
1985  */
1986 BOOL WINAPI CryptSetProviderW (LPCWSTR pszProvName, DWORD dwProvType)
1987 {
1988         TRACE("(%s, %d)\n", debugstr_w(pszProvName), dwProvType);
1989         return CryptSetProviderExW(pszProvName, dwProvType, NULL, CRYPT_USER_DEFAULT);
1990 }
1991
1992 /******************************************************************************
1993  * CryptSetProviderExW (ADVAPI32.@)
1994  *
1995  * Specifies the default CSP.
1996  *
1997  * PARAMS
1998  *  pszProvName [I] Name of the new default CSP.
1999  *  dwProvType  [I] Provider type of the CSP.
2000  *  pdwReserved [I] Reserved for future use and must be NULL.
2001  *  dwFlags     [I] See MSDN Doc.
2002  *
2003  * RETURNS
2004  *  Success: TRUE
2005  *  Failure: FALSE
2006  */
2007 BOOL WINAPI CryptSetProviderExW (LPCWSTR pszProvName, DWORD dwProvType, DWORD *pdwReserved, DWORD dwFlags)
2008 {
2009         HKEY hProvKey, hTypeKey;
2010         PWSTR keyname;
2011         static const WCHAR nameW[] = {'N','a','m','e',0};
2012
2013         TRACE("(%s, %d, %p, %08x)\n", debugstr_w(pszProvName), dwProvType, pdwReserved, dwFlags);
2014
2015         if (!pszProvName || pdwReserved)
2016         {
2017                 SetLastError(ERROR_INVALID_PARAMETER);
2018                 return FALSE;
2019         }
2020         if (dwProvType > MAXPROVTYPES)
2021         {
2022                 SetLastError(NTE_BAD_PROV_TYPE);
2023                 return FALSE;
2024         }
2025         if (dwFlags & ~(CRYPT_MACHINE_DEFAULT | CRYPT_USER_DEFAULT | CRYPT_DELETE_DEFAULT)
2026                         || dwFlags == CRYPT_DELETE_DEFAULT)
2027         {
2028                 SetLastError(NTE_BAD_FLAGS);
2029                 return FALSE;
2030         }
2031
2032         if (!(keyname = CRYPT_GetTypeKeyName(dwProvType, dwFlags & CRYPT_USER_DEFAULT)))
2033         {
2034                 SetLastError(ERROR_NOT_ENOUGH_MEMORY);
2035                 return FALSE;
2036         }
2037         if (RegOpenKeyW((dwFlags & CRYPT_USER_DEFAULT) ? HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE,
2038                 keyname, &hTypeKey))
2039         {
2040                 CRYPT_Free(keyname);
2041                 SetLastError(NTE_BAD_PROVIDER);
2042                 return FALSE;
2043         }
2044         CRYPT_Free(keyname);
2045
2046         if (dwFlags & CRYPT_DELETE_DEFAULT)
2047         {
2048                 RegDeleteValueW(hTypeKey, nameW);
2049         }
2050         else
2051         {
2052                 if (!(keyname = CRYPT_GetProvKeyName(pszProvName)))
2053                 {
2054                         RegCloseKey(hTypeKey);
2055                         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
2056                         return FALSE;
2057                 }
2058                 if (RegOpenKeyW((dwFlags & CRYPT_USER_DEFAULT) ? HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE,
2059                         keyname, &hProvKey))
2060                 {
2061                         CRYPT_Free(keyname);
2062                         RegCloseKey(hTypeKey);
2063                         SetLastError(NTE_BAD_PROVIDER);
2064                         return FALSE;
2065                 }
2066                 CRYPT_Free(keyname);
2067
2068                 if (RegSetValueExW(hTypeKey, nameW, 0, REG_SZ, (const BYTE *)pszProvName,
2069                         (strlenW(pszProvName) + 1)*sizeof(WCHAR)))
2070                 {
2071                         RegCloseKey(hTypeKey);
2072                         RegCloseKey(hProvKey);
2073                         return FALSE;
2074                 }
2075
2076                 RegCloseKey(hProvKey);
2077         }
2078         RegCloseKey(hTypeKey);
2079
2080         return TRUE;
2081 }
2082
2083 /******************************************************************************
2084  * CryptSetProviderExA (ADVAPI32.@)
2085  *
2086  * See CryptSetProviderExW.
2087  */
2088 BOOL WINAPI CryptSetProviderExA (LPCSTR pszProvName, DWORD dwProvType, DWORD *pdwReserved, DWORD dwFlags)
2089 {
2090         BOOL ret = FALSE;
2091         PWSTR str = NULL;
2092
2093         TRACE("(%s, %d, %p, %08x)\n", pszProvName, dwProvType, pdwReserved, dwFlags);
2094
2095         if (CRYPT_ANSIToUnicode(pszProvName, &str, -1))
2096         {
2097                 ret = CryptSetProviderExW(str, dwProvType, pdwReserved, dwFlags);
2098                 CRYPT_Free(str);
2099         }
2100         return ret;
2101 }
2102
2103 /******************************************************************************
2104  * CryptSetProvParam (ADVAPI32.@)
2105  *
2106  * Customizes the operations of a CSP.
2107  *
2108  * PARAMS
2109  *  hProv   [I] Handle of a CSP.
2110  *  dwParam [I] See MSDN Doc.
2111  *  pbData  [I] Buffer that contains a value to set as a parameter.
2112  *  dwFlags [I] if dwParam is PP_USE_HARDWARE_RNG, dwFlags must be zero.
2113  *
2114  * RETURNS
2115  *  Success: TRUE
2116  *  Failure: FALSE
2117  */
2118 BOOL WINAPI CryptSetProvParam (HCRYPTPROV hProv, DWORD dwParam, CONST BYTE *pbData, DWORD dwFlags)
2119 {
2120         PCRYPTPROV prov = (PCRYPTPROV)hProv;
2121
2122         TRACE("(0x%lx, %d, %p, %08x)\n", hProv, dwParam, pbData, dwFlags);
2123
2124         if (!prov)
2125         {
2126                 SetLastError(ERROR_INVALID_HANDLE);
2127                 return FALSE;
2128         }
2129         if (prov->dwMagic != MAGIC_CRYPTPROV)
2130         {
2131                 SetLastError(ERROR_INVALID_PARAMETER);
2132                 return FALSE;
2133         }
2134         if (dwFlags & PP_USE_HARDWARE_RNG)
2135         {
2136                 FIXME("PP_USE_HARDWARE_RNG: What do I do with this?\n");
2137                 FIXME("\tLetting the CSP decide.\n");
2138         }
2139         if (dwFlags & PP_CLIENT_HWND)
2140         {
2141                 /* FIXME: Should verify the parameter */
2142                 if (pbData /* && IsWindow((HWND)pbData) */)
2143                 {
2144                         crypt_hWindow = (HWND)(pbData);
2145                         return TRUE;
2146                 } else {
2147                         SetLastError(ERROR_INVALID_PARAMETER);
2148                         return FALSE;
2149                 }
2150         }
2151         /* All other flags go to the CSP */
2152         return prov->pFuncs->pCPSetProvParam(prov->hPrivate, dwParam, pbData, dwFlags);
2153 }
2154
2155 /******************************************************************************
2156  * CryptVerifySignatureW (ADVAPI32.@)
2157  *
2158  * Verifies the signature of a hash object.
2159  *
2160  * PARAMS
2161  *  hHash        [I] Handle of the hash object to verify.
2162  *  pbSignature  [I] Signature data to verify.
2163  *  dwSigLen     [I] Size of pbSignature.
2164  *  hPubKey      [I] Handle to the public key to authenticate signature.
2165  *  sDescription [I] Should be NULL.
2166  *  dwFlags      [I] See MSDN doc.
2167  *
2168  * RETURNS
2169  *  Success: TRUE
2170  *  Failure: FALSE
2171  *
2172  * NOTES
2173  *  Because of security flaws sDescription should not be used and should thus be
2174  *  NULL. It is supported only for compatibility with Microsoft's Cryptographic
2175  *  Providers.
2176  */
2177 BOOL WINAPI CryptVerifySignatureW (HCRYPTHASH hHash, CONST BYTE *pbSignature, DWORD dwSigLen,
2178                 HCRYPTKEY hPubKey, LPCWSTR sDescription, DWORD dwFlags)
2179 {
2180         PCRYPTHASH hash = (PCRYPTHASH)hHash;
2181         PCRYPTKEY key = (PCRYPTKEY)hPubKey;
2182         PCRYPTPROV prov;
2183
2184         TRACE("(0x%lx, %p, %d, 0x%lx, %s, %08x)\n", hHash, pbSignature,
2185                         dwSigLen, hPubKey, debugstr_w(sDescription), dwFlags);
2186
2187         if (!hash || !key ||
2188             !hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV ||
2189             !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
2190         {
2191                 SetLastError(ERROR_INVALID_PARAMETER);
2192                 return FALSE;
2193         }
2194
2195         prov = hash->pProvider;
2196         return prov->pFuncs->pCPVerifySignature(prov->hPrivate, hash->hPrivate, pbSignature, dwSigLen,
2197                 key->hPrivate, sDescription, dwFlags);
2198 }
2199
2200 /******************************************************************************
2201  * CryptVerifySignatureA (ADVAPI32.@)
2202  *
2203  * See CryptVerifySignatureW.
2204  */
2205 BOOL WINAPI CryptVerifySignatureA (HCRYPTHASH hHash, CONST BYTE *pbSignature, DWORD dwSigLen,
2206                 HCRYPTKEY hPubKey, LPCSTR sDescription, DWORD dwFlags)
2207 {
2208         LPWSTR wsDescription;
2209         BOOL result;
2210
2211         TRACE("(0x%lx, %p, %d, 0x%lx, %s, %08x)\n", hHash, pbSignature,
2212                         dwSigLen, hPubKey, debugstr_a(sDescription), dwFlags);
2213
2214         CRYPT_ANSIToUnicode(sDescription, &wsDescription, -1);
2215         result = CryptVerifySignatureW(hHash, pbSignature, dwSigLen, hPubKey, wsDescription, dwFlags);
2216         CRYPT_Free(wsDescription);
2217
2218         return result;
2219 }
2220
2221 /******************************************************************************
2222  * SystemFunction030   (ADVAPI32.@)
2223  *
2224  * Tests if two blocks of 16 bytes are equal
2225  *
2226  * PARAMS
2227  *  b1,b2   [I] block of 16 bytes
2228  *
2229  * RETURNS
2230  *  TRUE  if blocks are the same
2231  *  FALSE if blocks are different
2232  */
2233 BOOL WINAPI SystemFunction030(LPCVOID b1, LPCVOID b2)
2234 {
2235     return !memcmp(b1, b2, 0x10);
2236 }
2237
2238 /******************************************************************************
2239  * SystemFunction035   (ADVAPI32.@)
2240  *
2241  * Described here:
2242 http://disc.server.com/discussion.cgi?disc=148775;article=942;title=Coding%2FASM%2FSystem
2243  *
2244  * NOTES
2245  *  Stub, always return TRUE.
2246  */
2247 BOOL WINAPI SystemFunction035(LPCSTR lpszDllFilePath)
2248 {
2249     FIXME("%s: stub\n", debugstr_a(lpszDllFilePath));
2250     return TRUE;
2251 }
2252
2253 /******************************************************************************
2254  * SystemFunction036   (ADVAPI32.@)
2255  *
2256  * MSDN documents this function as RtlGenRandom and declares it in ntsecapi.h
2257  *
2258  * PARAMS
2259  *  pbBufer [O] Pointer to memory to receive random bytes.
2260  *  dwLen   [I] Number of random bytes to fetch.
2261  *
2262  * RETURNS
2263  *  Success: TRUE
2264  *  Failure: FALSE
2265  */
2266
2267 BOOLEAN WINAPI SystemFunction036(PVOID pbBuffer, ULONG dwLen)
2268 {
2269     int dev_random;
2270
2271     dev_random = open("/dev/urandom", O_RDONLY);
2272     if (dev_random != -1)
2273     {
2274         if (read(dev_random, pbBuffer, dwLen) == (ssize_t)dwLen)
2275         {
2276             close(dev_random);
2277             return TRUE;
2278         }
2279         close(dev_random);
2280     }
2281     else
2282         FIXME("couldn't open /dev/urandom\n");
2283     SetLastError(NTE_FAIL);
2284     return FALSE;
2285 }
2286
2287 /*
2288    These functions have nearly identical prototypes to CryptProtectMemory and CryptUnprotectMemory,
2289    in crypt32.dll.
2290  */
2291
2292 /******************************************************************************
2293  * SystemFunction040   (ADVAPI32.@)
2294  *
2295  * MSDN documents this function as RtlEncryptMemory and declares it in ntsecapi.h.
2296  *
2297  * PARAMS
2298  *  memory [I/O] Pointer to memory to encrypt.
2299  *  length [I] Length of region to encrypt in bytes.
2300  *  flags  [I] Control whether other processes are able to decrypt the memory.
2301  *    RTL_ENCRYPT_OPTION_SAME_PROCESS
2302  *    RTL_ENCRYPT_OPTION_CROSS_PROCESS
2303  *    RTL_ENCRYPT_OPTION_SAME_LOGON
2304  *
2305  * RETURNS
2306  *  Success: STATUS_SUCCESS
2307  *  Failure: NTSTATUS error code
2308  *
2309  * NOTES
2310  *  length must be a multiple of RTL_ENCRYPT_MEMORY_SIZE.
2311  *  If flags are specified when encrypting, the same flag value must be given
2312  *  when decrypting the memory.
2313  */
2314 NTSTATUS WINAPI SystemFunction040(PVOID memory, ULONG length, ULONG flags)
2315 {
2316         FIXME("(%p, %x, %x): stub [RtlEncryptMemory]\n", memory, length, flags);
2317         return STATUS_SUCCESS;
2318 }
2319
2320 /******************************************************************************
2321  * SystemFunction041  (ADVAPI32.@)
2322  *
2323  * MSDN documents this function as RtlDecryptMemory and declares it in ntsecapi.h.
2324  *
2325  * PARAMS
2326  *  memory [I/O] Pointer to memory to decrypt.
2327  *  length [I] Length of region to decrypt in bytes.
2328  *  flags  [I] Control whether other processes are able to decrypt the memory.
2329  *    RTL_ENCRYPT_OPTION_SAME_PROCESS
2330  *    RTL_ENCRYPT_OPTION_CROSS_PROCESS
2331  *    RTL_ENCRYPT_OPTION_SAME_LOGON
2332  *
2333  * RETURNS
2334  *  Success: STATUS_SUCCESS
2335  *  Failure: NTSTATUS error code
2336  *
2337  * NOTES
2338  *  length must be a multiple of RTL_ENCRYPT_MEMORY_SIZE.
2339  *  If flags are specified when encrypting, the same flag value must be given
2340  *  when decrypting the memory.
2341  */
2342 NTSTATUS WINAPI SystemFunction041(PVOID memory, ULONG length, ULONG flags)
2343 {
2344         FIXME("(%p, %x, %x): stub [RtlDecryptMemory]\n", memory, length, flags);
2345         return STATUS_SUCCESS;
2346 }