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wine/dlls/advapi32/crypt.c
Vincent Béron e9cac26182 Change some TRACEing formats to make more sense.
2005-08-15 09:44:34 +00:00

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57 KiB
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/*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 "crypt.h"
#include "winnls.h"
#include "winreg.h"
#include "wine/debug.h"
#include "winternl.h"
#include "ntstatus.h"
WINE_DEFAULT_DEBUG_CHANNEL(crypt);
HWND crypt_hWindow = 0;
#define CRYPT_ReturnLastError(err) {SetLastError(err); return FALSE;}
#define CRYPT_Alloc(size) ((LPVOID)LocalAlloc(LMEM_ZEROINIT, size))
#define CRYPT_Free(buffer) (LocalFree((HLOCAL)buffer))
static inline PSTR CRYPT_GetProvKeyName(PCSTR pProvName)
{
PCSTR KEYSTR = "Software\\Microsoft\\Cryptography\\Defaults\\Provider\\";
PSTR keyname;
keyname = CRYPT_Alloc(strlen(KEYSTR) + strlen(pProvName) +1);
if (keyname)
{
strcpy(keyname, KEYSTR);
strcpy(keyname + strlen(KEYSTR), pProvName);
} else
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
return keyname;
}
static inline PSTR CRYPT_GetTypeKeyName(DWORD dwType, BOOL user)
{
PCSTR MACHINESTR = "Software\\Microsoft\\Cryptography\\Defaults\\Provider Types\\Type XXX";
PCSTR USERSTR = "Software\\Microsoft\\Cryptography\\Provider Type XXX";
PSTR keyname;
PSTR ptr;
keyname = CRYPT_Alloc( (user ? strlen(USERSTR) : strlen(MACHINESTR)) +1);
if (keyname)
{
user ? strcpy(keyname, USERSTR) : strcpy(keyname, MACHINESTR);
ptr = keyname + strlen(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 unsuccessfull, 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)
{
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(PSTR 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 = LoadLibraryA(pImage)) )
{
errorcode = (GetLastError() == ERROR_FILE_NOT_FOUND) ? NTE_PROV_DLL_NOT_FOUND : NTE_PROVIDER_DLL_FAIL;
FIXME("Failed to load dll %s\n", debugstr_a(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
/******************************************************************************
* CryptAcquireContextA (ADVAPI32.@)
* Acquire a crypto provider context handle.
*
* PARAMS
* phProv: Pointer to HCRYPTPROV for the output.
* pszContainer: Key Container Name
* pszProvider: Cryptographic Service Provider Name
* dwProvType: Crypto provider type to get a handle.
* dwFlags: flags for the operation
*
* RETURNS TRUE on success, FALSE on failure.
*/
BOOL WINAPI CryptAcquireContextA (HCRYPTPROV *phProv, LPCSTR pszContainer,
LPCSTR pszProvider, DWORD dwProvType, DWORD dwFlags)
{
PCRYPTPROV pProv = NULL;
HKEY key;
PSTR imagepath = NULL, keyname = NULL, provname = NULL, temp = NULL;
DWORD keytype, type, len;
ULONG r;
TRACE("(%p, %s, %s, %ld, %08lx)\n", phProv, pszContainer,
pszProvider, dwProvType, dwFlags);
if (dwProvType < 1 || dwProvType > MAXPROVTYPES)
{
SetLastError(NTE_BAD_PROV_TYPE);
return FALSE;
}
if (!phProv)
{
SetLastError(ERROR_INVALID_PARAMETER);
return FALSE;
}
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 %ld.\n", dwProvType);
SetLastError(NTE_PROV_TYPE_NOT_DEF);
return FALSE;
}
if (RegOpenKeyA(HKEY_CURRENT_USER, keyname, &key))
{
CRYPT_Free(keyname);
if ( !(keyname = CRYPT_GetTypeKeyName(dwProvType, FALSE)) ) {
TRACE("No type registered for crypto provider type %ld.\n", dwProvType);
RegCloseKey(key);
SetLastError(NTE_PROV_TYPE_NOT_DEF);
goto error;
}
if (RegOpenKeyA(HKEY_LOCAL_MACHINE, keyname, &key)) {
TRACE("Did not find registry entry of crypto provider for %s.\n", debugstr_a(keyname));
CRYPT_Free(keyname);
RegCloseKey(key);
SetLastError(NTE_PROV_TYPE_NOT_DEF);
goto error;
}
}
CRYPT_Free(keyname);
r = RegQueryValueExA(key, "Name", NULL, &keytype, NULL, &len);
if( r != ERROR_SUCCESS || !len || keytype != REG_SZ)
{
TRACE("error %ld 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 = RegQueryValueExA(key, "Name", NULL, NULL, (LPBYTE)provname, &len);
if( r != ERROR_SUCCESS )
{
TRACE("error %ld reading 'Name' from registry\n", r );
RegCloseKey(key);
SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
goto error;
}
RegCloseKey(key);
} else {
if ( !(provname = CRYPT_Alloc(strlen(pszProvider) +1)) )
{
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
goto error;
}
strcpy(provname, pszProvider);
}
keyname = CRYPT_GetProvKeyName(provname);
r = RegOpenKeyA(HKEY_LOCAL_MACHINE, keyname, &key);
CRYPT_Free(keyname);
if (r != ERROR_SUCCESS)
{
SetLastError(NTE_KEYSET_NOT_DEF);
goto error;
}
len = sizeof(DWORD);
r = RegQueryValueExA(key, "Type", 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 (%ld vs expected %ld).\n", type, dwProvType);
SetLastError(NTE_PROV_TYPE_NO_MATCH);
goto error;
}
r = RegQueryValueExA(key, "Image Path", NULL, &keytype, NULL, &len);
if ( r != ERROR_SUCCESS || keytype != REG_SZ)
{
TRACE("error %ld 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 = RegQueryValueExA(key, "Image Path", NULL, NULL, (LPBYTE)temp, &len);
if( r != ERROR_SUCCESS )
{
TRACE("error %ld reading 'Image Path' from registry\n", r );
RegCloseKey(key);
SetLastError(NTE_PROV_TYPE_ENTRY_BAD);
goto error;
}
RegCloseKey(key);
len = ExpandEnvironmentStringsA(temp, NULL, 0);
if ( !(imagepath = CRYPT_Alloc(len)) )
{
SetLastError(ERROR_NOT_ENOUGH_MEMORY);
goto error;
}
if (!ExpandEnvironmentStringsA(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;
pProv->pVTable->pszProvName = provname;
if (pProv->pFuncs->pCPAcquireContext(&pProv->hPrivate, (CHAR*)pszContainer, 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(provname);
CRYPT_Free(pProv->pFuncs);
CRYPT_Free(pProv);
} else {
*phProv = (HCRYPTPROV)pProv;
}
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);
if (pProv->pVTable)
CRYPT_Free(pProv->pVTable);
if (pProv->pFuncs)
CRYPT_Free(pProv->pFuncs);
CRYPT_Free(pProv);
}
if (provname)
CRYPT_Free(provname);
if (temp)
CRYPT_Free(temp);
if (imagepath)
CRYPT_Free(imagepath);
return FALSE;
}
/******************************************************************************
* CryptAcquireContextW (ADVAPI32.@)
*
* see CryptAcquireContextA
*/
BOOL WINAPI CryptAcquireContextW (HCRYPTPROV *phProv, LPCWSTR pszContainer,
LPCWSTR pszProvider, DWORD dwProvType, DWORD dwFlags)
{
PSTR pProvider = NULL, pContainer = NULL;
BOOL ret = FALSE;
TRACE("(%p, %s, %s, %ld, %08lx)\n", phProv, debugstr_w(pszContainer),
debugstr_w(pszProvider), dwProvType, dwFlags);
if ( !CRYPT_UnicodeToANSI(pszContainer, &pContainer, -1) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
if ( !CRYPT_UnicodeToANSI(pszProvider, &pProvider, -1) )
{
CRYPT_Free(pContainer);
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
}
ret = CryptAcquireContextA(phProv, pContainer, pProvider, dwProvType, dwFlags);
if (pContainer)
CRYPT_Free(pContainer);
if (pProvider)
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, %08lx)\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, DWORD 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, %ld, %p)\n", hProv, dwLen, pbBuffer);
if (!hProv)
CRYPT_ReturnLastError(ERROR_INVALID_HANDLE);
if (prov->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
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, %08lx, %p)\n", hProv, Algid, hKey, dwFlags, phHash);
if (!prov)
CRYPT_ReturnLastError(ERROR_INVALID_HANDLE);
if (!phHash || prov->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
if (dwFlags)
CRYPT_ReturnLastError(NTE_BAD_FLAGS);
if ( !(hash = CRYPT_Alloc(sizeof(CRYPTHASH))) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
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, %08lx, %p, %p)\n", hKey, hHash, Final, dwFlags, pbData, pdwDataLen);
if (!key || !pbData || !pdwDataLen || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
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%08lx, %p)\n", hProv, Algid, hBaseData, dwFlags, phKey);
if (!prov || !hash)
CRYPT_ReturnLastError(ERROR_INVALID_HANDLE);
if (!phKey || prov->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
if ( !(key = CRYPT_Alloc(sizeof(CRYPTKEY))) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
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)
CRYPT_ReturnLastError(ERROR_INVALID_HANDLE);
if (!hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
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)
CRYPT_ReturnLastError(ERROR_INVALID_HANDLE);
if (!key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
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, %08lx, %p)\n", hHash, pdwReserved, dwFlags, phHash);
orghash = (PCRYPTHASH)hHash;
if (!orghash || pdwReserved || !phHash || !orghash->pProvider ||
orghash->pProvider->dwMagic != MAGIC_CRYPTPROV)
{
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
}
prov = orghash->pProvider;
if (!prov->pFuncs->pCPDuplicateHash)
CRYPT_ReturnLastError(ERROR_CALL_NOT_IMPLEMENTED);
if ( !(newhash = CRYPT_Alloc(sizeof(CRYPTHASH))) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
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, %08lx, %p)\n", hKey, pdwReserved, dwFlags, phKey);
orgkey = (PCRYPTKEY)hKey;
if (!orgkey || pdwReserved || !phKey || !orgkey->pProvider ||
orgkey->pProvider->dwMagic != MAGIC_CRYPTPROV)
{
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
}
prov = orgkey->pProvider;
if (!prov->pFuncs->pCPDuplicateKey)
CRYPT_ReturnLastError(ERROR_CALL_NOT_IMPLEMENTED);
if ( !(newkey = CRYPT_Alloc(sizeof(CRYPTKEY))) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
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 enryption 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, %08lx, %p, %p, %ld)\n", hKey, hHash, Final, dwFlags, pbData, pdwDataLen, dwBufLen);
if (!key || !pdwDataLen || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
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 availabe 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("(%ld, %p, %ld, %p, %p, %p)\n", dwIndex, pdwReserved, dwFlags,
pdwProvType, pszProvName, pcbProvName);
if (pdwReserved || !pcbProvName) CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
if (dwFlags) CRYPT_ReturnLastError(NTE_BAD_FLAGS);
if (RegOpenKeyW(HKEY_LOCAL_MACHINE, providerW, &hKey))
CRYPT_ReturnLastError(NTE_FAIL);
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))))
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
RegEnumKeyExW(hKey, dwIndex, provNameW, pcbProvName, NULL, NULL, NULL, NULL);
(*pcbProvName)++;
*pcbProvName *= sizeof(WCHAR);
CRYPT_Free(provNameW);
if (dwIndex >= numkeys)
CRYPT_ReturnLastError(ERROR_NO_MORE_ITEMS);
} else {
DWORD size = sizeof(DWORD);
DWORD result;
HKEY subkey;
result = RegEnumKeyW(hKey, dwIndex, pszProvName, *pcbProvName / sizeof(WCHAR));
if (result)
CRYPT_ReturnLastError(result);
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 strlen;
BOOL ret; /* = FALSE; */
TRACE("(%ld, %p, %08lx, %p, %p, %p)\n", dwIndex, pdwReserved, dwFlags,
pdwProvType, pszProvName, pcbProvName);
strlen = *pcbProvName * sizeof(WCHAR);
if ( pszProvName && !(str = CRYPT_Alloc(strlen)) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
ret = CryptEnumProvidersW(dwIndex, pdwReserved, dwFlags, pdwProvType, str, &strlen);
if (str)
{
CRYPT_UnicodeToANSI(str, &pszProvName, *pcbProvName);
CRYPT_Free(str);
}
*pcbProvName = strlen / sizeof(WCHAR); /* FIXME: not correct */
return ret;
}
/******************************************************************************
* CryptEnumProviderTypesA (ADVAPI32i.@)
*
* 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, CryptEnumProviderTypesA sets the size of the name
* for memory allocation purposes.
*/
BOOL WINAPI CryptEnumProviderTypesA (DWORD dwIndex, DWORD *pdwReserved,
DWORD dwFlags, DWORD *pdwProvType, LPSTR pszTypeName, DWORD *pcbTypeName)
{
HKEY hKey, hSubkey;
DWORD keylen, numkeys, dwType;
PSTR keyname, ch;
DWORD result;
TRACE("(%ld, %p, %08lx, %p, %p, %p)\n", dwIndex, pdwReserved,
dwFlags, pdwProvType, pszTypeName, pcbTypeName);
if (pdwReserved || !pdwProvType || !pcbTypeName)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
if (dwFlags) CRYPT_ReturnLastError(NTE_BAD_FLAGS);
if (RegOpenKeyA(HKEY_LOCAL_MACHINE, "Software\\Microsoft\\Cryptography\\Defaults\\Provider Types", &hKey))
return FALSE;
RegQueryInfoKeyA(hKey, NULL, NULL, NULL, &numkeys, &keylen, NULL, NULL, NULL, NULL, NULL, NULL);
if (dwIndex >= numkeys)
CRYPT_ReturnLastError(ERROR_NO_MORE_ITEMS);
keylen++;
if ( !(keyname = CRYPT_Alloc(keylen)) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
if ( RegEnumKeyA(hKey, dwIndex, keyname, keylen) ) {
CRYPT_Free(keyname);
return FALSE;
}
RegOpenKeyA(hKey, keyname, &hSubkey);
ch = keyname + strlen(keyname);
/* Convert "Type 000" to 0, etc/ */
*pdwProvType = *(--ch) - '0';
*pdwProvType += (*(--ch) - '0') * 10;
*pdwProvType += (*(--ch) - '0') * 100;
CRYPT_Free(keyname);
result = RegQueryValueExA(hSubkey, "TypeName", NULL, &dwType, (LPBYTE)pszTypeName, pcbTypeName);
if (result)
CRYPT_ReturnLastError(result);
RegCloseKey(hSubkey);
RegCloseKey(hKey);
return TRUE;
}
/******************************************************************************
* CryptEnumProviderTypesW (ADVAPI32.@)
*
* see CryptEnumProviderTypesA
*/
BOOL WINAPI CryptEnumProviderTypesW (DWORD dwIndex, DWORD *pdwReserved,
DWORD dwFlags, DWORD *pdwProvType, LPWSTR pszTypeName, DWORD *pcbTypeName)
{
PSTR str = NULL;
DWORD strlen;
BOOL ret;
TRACE("(%ld, %p, %08lx, %p, %p, %p)\n", dwIndex, pdwReserved, dwFlags,
pdwProvType, pszTypeName, pcbTypeName);
strlen = *pcbTypeName / sizeof(WCHAR);
if ( pszTypeName && !(str = CRYPT_Alloc(strlen)) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
ret = CryptEnumProviderTypesA(dwIndex, pdwReserved, dwFlags, pdwProvType, str, &strlen);
if (str)
{
CRYPT_ANSIToUnicode(str, &pszTypeName, *pcbTypeName);
CRYPT_Free(str);
}
*pcbTypeName = strlen * sizeof(WCHAR);
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, %ld, %08lx, %p, %p)\n", hKey, hExpKey, dwBlobType, dwFlags, pbData, pdwDataLen);
if (!key || !pdwDataLen || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
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, %08lx, %p)\n", hProv, Algid, dwFlags, phKey);
if (!prov)
CRYPT_ReturnLastError(ERROR_INVALID_HANDLE);
if (!phKey || !prov || prov->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
if ( !(key = CRYPT_Alloc(sizeof(CRYPTKEY))) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
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;
}
/******************************************************************************
* CryptGetDefaultProviderA (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 CryptGetDefaultProviderA (DWORD dwProvType, DWORD *pdwReserved,
DWORD dwFlags, LPSTR pszProvName, DWORD *pcbProvName)
{
HKEY hKey;
PSTR keyname;
DWORD result;
if (pdwReserved || !pcbProvName)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
if (dwFlags & ~(CRYPT_USER_DEFAULT | CRYPT_MACHINE_DEFAULT))
CRYPT_ReturnLastError(NTE_BAD_FLAGS);
if (dwProvType > 999)
CRYPT_ReturnLastError(NTE_BAD_PROV_TYPE);
if ( !(keyname = CRYPT_GetTypeKeyName(dwProvType, dwFlags & CRYPT_USER_DEFAULT)) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
if (RegOpenKeyA((dwFlags & CRYPT_USER_DEFAULT) ? HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE ,keyname, &hKey))
{
CRYPT_Free(keyname);
CRYPT_ReturnLastError(NTE_PROV_TYPE_NOT_DEF);
}
CRYPT_Free(keyname);
result = RegQueryValueExA(hKey, "Name", 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;
}
/******************************************************************************
* CryptGetDefaultProviderW (ADVAPI32.@)
*
* see CryptGetDefaultProviderA
*/
BOOL WINAPI CryptGetDefaultProviderW (DWORD dwProvType, DWORD *pdwReserved,
DWORD dwFlags, LPWSTR pszProvName, DWORD *pcbProvName)
{
PSTR str = NULL;
DWORD strlen;
BOOL ret = FALSE;
TRACE("(%ld, %p, %08lx, %p, %p)\n", dwProvType, pdwReserved, dwFlags, pszProvName, pcbProvName);
strlen = *pcbProvName / sizeof(WCHAR);
if ( pszProvName && !(str = CRYPT_Alloc(strlen)) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
ret = CryptGetDefaultProviderA(dwProvType, pdwReserved, dwFlags, str, &strlen);
if (str)
{
CRYPT_ANSIToUnicode(str, &pszProvName, *pcbProvName);
CRYPT_Free(str);
}
*pcbProvName = strlen * sizeof(WCHAR);
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, %ld, %p, %p, %08lx)\n", hHash, dwParam, pbData, pdwDataLen, dwFlags);
if (!hash || !pdwDataLen || !hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
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, %ld, %p, %p, %08lx)\n", hKey, dwParam, pbData, pdwDataLen, dwFlags);
if (!key || !pdwDataLen || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
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, %ld, %p, %p, %08lx)\n", hProv, dwParam, pbData, pdwDataLen, dwFlags);
if (!prov || prov->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
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, %ld, %p)\n", hProv, dwKeySpec, phUserKey);
if (!prov)
CRYPT_ReturnLastError(ERROR_INVALID_HANDLE);
if (!phUserKey || prov->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
if ( !(key = CRYPT_Alloc(sizeof(CRYPTKEY))) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
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, %ld, %08lx)\n", hHash, pbData, dwDataLen, dwFlags);
if (!hash)
CRYPT_ReturnLastError(ERROR_INVALID_HANDLE);
if (!hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
prov = hash->pProvider;
return prov->pFuncs->pCPHashData(prov->hPrivate, hash->hPrivate, pbData, dwDataLen, dwFlags);
}
/******************************************************************************
* CryptHashSessionKey (ADVAPI32.@)
*
* 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, %08lx)\n", hHash, hKey, dwFlags);
if (!hash || !key)
CRYPT_ReturnLastError(ERROR_INVALID_HANDLE);
if (!hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
prov = hash->pProvider;
return prov->pFuncs->pCPHashSessionKey(prov->hPrivate, hash->hPrivate, key->hPrivate, dwFlags);
}
/******************************************************************************
* CryptImportKey (ADVAPI32.@)
*
* 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, BYTE *pbData, DWORD dwDataLen,
HCRYPTKEY hPubKey, DWORD dwFlags, HCRYPTKEY *phKey)
{
PCRYPTPROV prov = (PCRYPTPROV)hProv;
PCRYPTKEY pubkey = (PCRYPTKEY)hPubKey, importkey;
TRACE("(0x%lx, %p, %ld, 0x%lx, %08lx, %p)\n", hProv, pbData, dwDataLen, hPubKey, dwFlags, phKey);
if (!prov || !pbData || !dwDataLen || !phKey || prov->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
if ( !(importkey = CRYPT_Alloc(sizeof(CRYPTKEY))) )
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
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, %ld, %s, %08lx, %p, %p)\n",
hHash, dwKeySpec, debugstr_w(sDescription), dwFlags, pbSignature, pdwSigLen);
if (!hash)
CRYPT_ReturnLastError(ERROR_INVALID_HANDLE);
if (!pdwSigLen || !hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
prov = hash->pProvider;
return prov->pFuncs->pCPSignHash(prov->hPrivate, hash->hPrivate, dwKeySpec, sDescription,
dwFlags, pbSignature, pdwSigLen);
}
/******************************************************************************
* CryptSignHashA (ADVAPI32.@)
*
* ASCII version of CryptSignHashW
*/
BOOL WINAPI CryptSignHashA (HCRYPTHASH hHash, DWORD dwKeySpec, LPCSTR sDescription,
DWORD dwFlags, BYTE *pbSignature, DWORD *pdwSigLen)
{
LPWSTR wsDescription;
BOOL result;
TRACE("(0x%lx, %ld, %s, %08lx, %p, %p)\n",
hHash, dwKeySpec, debugstr_a(sDescription), dwFlags, pbSignature, pdwSigLen);
CRYPT_ANSIToUnicode(sDescription, &wsDescription, -1);
result = CryptSignHashW(hHash, dwKeySpec, wsDescription, dwFlags, pbSignature, pdwSigLen);
if (wsDescription) 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, BYTE *pbData, DWORD dwFlags)
{
PCRYPTPROV prov;
PCRYPTHASH hash = (PCRYPTHASH)hHash;
TRACE("(0x%lx, %ld, %p, %08lx)\n", hHash, dwParam, pbData, dwFlags);
if (!hash || !pbData || !hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
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, BYTE *pbData, DWORD dwFlags)
{
PCRYPTPROV prov;
PCRYPTKEY key = (PCRYPTKEY)hKey;
TRACE("(0x%lx, %ld, %p, %08lx)\n", hKey, dwParam, pbData, dwFlags);
if (!key || !pbData || !key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
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, %ld)\n", pszProvName, dwProvType);
return CryptSetProviderExA(pszProvName, dwProvType, NULL, CRYPT_USER_DEFAULT);
}
/******************************************************************************
* CryptSetProviderW (ADVAPI32.@)
*
* See CryptSetProviderA
*/
BOOL WINAPI CryptSetProviderW (LPCWSTR pszProvName, DWORD dwProvType)
{
TRACE("(%s, %ld)\n", debugstr_w(pszProvName), dwProvType);
return CryptSetProviderExW(pszProvName, dwProvType, NULL, CRYPT_USER_DEFAULT);
}
/******************************************************************************
* CryptSetProviderExA (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 CryptSetProviderExA (LPCSTR pszProvName, DWORD dwProvType, DWORD *pdwReserved, DWORD dwFlags)
{
HKEY hProvKey, hTypeKey;
PSTR keyname;
TRACE("(%s, %ld, %p, %08lx)\n", pszProvName, dwProvType, pdwReserved, dwFlags);
if (!pszProvName || pdwReserved)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
if (dwProvType > MAXPROVTYPES)
CRYPT_ReturnLastError(NTE_BAD_PROV_TYPE);
if (dwFlags & ~(CRYPT_MACHINE_DEFAULT | CRYPT_USER_DEFAULT | CRYPT_DELETE_DEFAULT)
|| dwFlags == CRYPT_DELETE_DEFAULT)
CRYPT_ReturnLastError(NTE_BAD_FLAGS);
if (!(keyname = CRYPT_GetTypeKeyName(dwProvType, dwFlags & CRYPT_USER_DEFAULT)))
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
if (RegOpenKeyA((dwFlags & CRYPT_USER_DEFAULT) ? HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE,
keyname, &hTypeKey))
{
CRYPT_Free(keyname);
CRYPT_ReturnLastError(NTE_BAD_PROVIDER);
}
CRYPT_Free(keyname);
if (dwFlags & CRYPT_DELETE_DEFAULT)
{
RegDeleteValueA(hTypeKey, "Name");
}
else
{
if (!(keyname = CRYPT_GetProvKeyName(pszProvName)))
{
RegCloseKey(hTypeKey);
CRYPT_ReturnLastError(ERROR_NOT_ENOUGH_MEMORY);
}
if (RegOpenKeyA((dwFlags & CRYPT_USER_DEFAULT) ? HKEY_CURRENT_USER : HKEY_LOCAL_MACHINE,
keyname, &hProvKey))
{
CRYPT_Free(keyname);
RegCloseKey(hTypeKey);
CRYPT_ReturnLastError(NTE_BAD_PROVIDER);
}
CRYPT_Free(keyname);
if (RegSetValueExA(hTypeKey, "Name", 0, REG_SZ, (LPBYTE)pszProvName, strlen(pszProvName) + 1))
{
RegCloseKey(hTypeKey);
RegCloseKey(hProvKey);
return FALSE;
}
RegCloseKey(hProvKey);
}
RegCloseKey(hTypeKey);
return TRUE;
}
/******************************************************************************
* CryptSetProviderExW (ADVAPI32.@)
*
* See CryptSetProviderExA
*/
BOOL WINAPI CryptSetProviderExW (LPCWSTR pszProvName, DWORD dwProvType, DWORD *pdwReserved, DWORD dwFlags)
{
BOOL ret = FALSE;
PSTR str = NULL;
TRACE("(%s, %ld, %p, %08lx)\n", debugstr_w(pszProvName), dwProvType, pdwReserved, dwFlags);
if (CRYPT_UnicodeToANSI(pszProvName, &str, -1))
{
ret = CryptSetProviderExA(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, BYTE *pbData, DWORD dwFlags)
{
PCRYPTPROV prov = (PCRYPTPROV)hProv;
TRACE("(0x%lx, %ld, %p, %08lx)\n", hProv, dwParam, pbData, dwFlags);
if (!prov)
CRYPT_ReturnLastError(ERROR_INVALID_HANDLE);
if (prov->dwMagic != MAGIC_CRYPTPROV)
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
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, BYTE *pbSignature, DWORD dwSigLen,
HCRYPTKEY hPubKey, LPCWSTR sDescription, DWORD dwFlags)
{
PCRYPTHASH hash = (PCRYPTHASH)hHash;
PCRYPTKEY key = (PCRYPTKEY)hPubKey;
PCRYPTPROV prov;
TRACE("(0x%lx, %p, %ld, 0x%lx, %s, %08lx)\n", hHash, pbSignature,
dwSigLen, hPubKey, debugstr_w(sDescription), dwFlags);
if (!hash || !key)
CRYPT_ReturnLastError(ERROR_INVALID_HANDLE);
if (!pbSignature || !dwSigLen ||
!hash->pProvider || hash->pProvider->dwMagic != MAGIC_CRYPTPROV ||
!key->pProvider || key->pProvider->dwMagic != MAGIC_CRYPTPROV)
{
CRYPT_ReturnLastError(ERROR_INVALID_PARAMETER);
}
prov = hash->pProvider;
return prov->pFuncs->pCPVerifySignature(prov->hPrivate, hash->hPrivate, pbSignature, dwSigLen,
key->hPrivate, sDescription, dwFlags);
}
/******************************************************************************
* CryptVerifySignatureA (ADVAPI32.@)
*
* ASCII version of CryptVerifySignatureW
*/
BOOL WINAPI CryptVerifySignatureA (HCRYPTHASH hHash, BYTE *pbSignature, DWORD dwSigLen,
HCRYPTKEY hPubKey, LPCSTR sDescription, DWORD dwFlags)
{
LPWSTR wsDescription;
BOOL result;
TRACE("(0x%lx, %p, %ld, 0x%lx, %s, %08lx)\n", hHash, pbSignature,
dwSigLen, hPubKey, debugstr_a(sDescription), dwFlags);
CRYPT_ANSIToUnicode(sDescription, &wsDescription, -1);
result = CryptVerifySignatureW(hHash, pbSignature, dwSigLen, hPubKey, wsDescription, dwFlags);
if (wsDescription) CRYPT_Free(wsDescription);
return result;
}
/******************************************************************************
* 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.
*/
BOOL WINAPI SystemFunction036(PVOID pbBuffer, ULONG dwLen)
{
int dev_random;
/* FIXME: /dev/urandom does not provide random numbers of a sufficient
* quality for cryptographic applications. /dev/random is much better,
* but it blocks if the kernel has not yet collected enough entropy for
* the request, which will suspend the calling thread for an indefinite
* amount of time. */
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);
}
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
*
* 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, %lx, %lx): 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
*
* 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, %lx, %lx): stub [RtlDecryptMemory]\n", memory, length, flags);
return STATUS_SUCCESS;
}
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