new internal static SafeLocalAllocHandle LocalAlloc(uint uFlags, uint sizetdwBytes)
{
SafeLocalAllocHandle safeLocalAllocHandle = CAPIMethods.LocalAlloc(uFlags, sizetdwBytes);
if (safeLocalAllocHandle == null || safeLocalAllocHandle.IsInvalid)
{
throw new OutOfMemoryException();
}
return(safeLocalAllocHandle);
}
new internal static bool CryptGetProvParam(
SafeCryptProvHandle hProv,
uint dwParam,
StringBuilder pbData,
ref uint dwDataLen,
uint dwFlags)
{
bool result = CAPIMethods.CryptGetProvParam(hProv, dwParam, pbData, ref dwDataLen, dwFlags);
#if DEBUG
if (!result)
{
int errorCode = Marshal.GetLastWin32Error();
if (errorCode != 0 && errorCode != CAPI.ERROR_NO_MORE_ITEMS)
{
System.Diagnostics.Debug.WriteLine("Error " + errorCode);
}
}
#endif
return(result);
}
internal static bool CryptAcquireContext(
ref SafeCryptProvHandle hCryptProv,
string pwszContainer,
string pwszProvider,
uint dwProvType,
uint dwFlags,
out int errorCode)
{
errorCode = 0;
#if !RUNTIME_TYPE_NETCORE
CspParameters parameters = new CspParameters();
parameters.ProviderName = pwszProvider;
parameters.KeyContainerName = pwszContainer;
parameters.ProviderType = (int)dwProvType;
parameters.KeyNumber = -1;
parameters.Flags = (CspProviderFlags)((dwFlags & CAPI.CRYPT_MACHINE_KEYSET) == CAPI.CRYPT_MACHINE_KEYSET ? CspProviderFlags.UseMachineKeyStore : 0);
KeyContainerPermission kp = new KeyContainerPermission(KeyContainerPermissionFlags.NoFlags);
KeyContainerPermissionAccessEntry entry = new KeyContainerPermissionAccessEntry(parameters, KeyContainerPermissionFlags.Open);
kp.AccessEntries.Add(entry);
kp.Demand();
#endif
bool rc = CAPIMethods.CryptAcquireContext(ref hCryptProv,
pwszContainer,
pwszProvider,
dwProvType,
dwFlags);
if (!rc)
{
errorCode = Marshal.GetLastWin32Error();
}
return(rc);
}
