public static string IpcfDecryptFileStream(
Stream inputStream,
string inputFilePath,
DecryptFlags flags,
bool suppressUI,
bool offline,
bool hasUserConsent,
IntPtr parentWindow,
ref Stream outputStream,
WaitHandle cancelCurrentOperation = null)
{
SafeIpcPromptContext ipcContext =
SafeNativeMethods.CreateIpcPromptContext(suppressUI,
offline,
hasUserConsent,
parentWindow,
cancelCurrentOperation);
return(IpcfDecryptFileStream(
inputStream,
inputFilePath,
flags,
ref outputStream,
ipcContext));
}
public static string IpcfDecryptFile(
string inputFile,
DecryptFlags flags,
bool suppressUI,
bool offline,
bool hasUserConsent,
IntPtr parentWindow,
SymmetricKeyCredential symmKey,
string outputDirectory = null,
WaitHandle cancelCurrentOperation = null)
{
int hr = 0;
IntPtr decryptedFileNamePtr = IntPtr.Zero;
string decryptedFileName = null;
SafeIpcPromptContext ipcContext =
SafeNativeMethods.CreateIpcPromptContext(suppressUI,
offline,
hasUserConsent,
parentWindow,
symmKey,
cancelCurrentOperation);
try
{
using (var wrappedContext = ipcContext.Wrap())
{
hr = UnsafeFileApiMethods.IpcfDecryptFile(
inputFile,
(uint)flags,
(IpcPromptContext)wrappedContext,
outputDirectory,
out decryptedFileNamePtr);
}
SafeNativeMethods.ThrowOnErrorCode(hr);
decryptedFileName = Marshal.PtrToStringUni(decryptedFileNamePtr);
if (null == decryptedFileName || 0 == decryptedFileName.Length)
{
decryptedFileName = inputFile;
}
}
finally
{
UnsafeFileApiMethods.IpcFreeMemory(decryptedFileNamePtr);
SafeNativeMethods.ReleaseIpcPromptContext(ipcContext);
}
return(decryptedFileName);
}
public static string IpcfDecryptFileStream(
Stream inputStream,
string inputFilePath,
DecryptFlags flags,
bool suppressUI,
bool offline,
bool hasUserConsent,
System.Windows.Forms.Form parentForm,
ref Stream outputStream)
{
int hr = 0;
IntPtr decryptedFileNamePtr = IntPtr.Zero;
string decryptedFileName = null;
ILockBytes ilInputStream = new ILockBytesOverStream(inputStream);
ILockBytes ilOutputStream = new ILockBytesOverStream(outputStream);
SafeIpcPromptContext ipcContext =
SafeNativeMethods.CreateIpcPromptContext(suppressUI,
offline,
hasUserConsent,
parentForm);
try
{
hr = UnsafeFileApiMethods.IpcfDecryptFileStream(
ilInputStream,
inputFilePath,
(uint)flags,
(IpcPromptContext)ipcContext,
ilOutputStream,
out decryptedFileNamePtr);
SafeNativeMethods.ThrowOnErrorCode(hr);
decryptedFileName = Marshal.PtrToStringUni(decryptedFileNamePtr);
if (null == decryptedFileName || 0 == decryptedFileName.Length)
{
decryptedFileName = inputFilePath;
}
}
finally
{
UnsafeFileApiMethods.IpcFreeMemory(decryptedFileNamePtr);
}
return(decryptedFileName);
}
public static string IpcfDecryptFile(
string inputFile,
DecryptFlags flags,
bool suppressUI,
bool offline,
bool hasUserConsent,
System.Windows.Forms.Form parentForm,
SymmetricKeyCredential symmKey,
string outputDirectory = null)
{
int hr = 0;
IntPtr decryptedFileNamePtr = IntPtr.Zero;
string decryptedFileName = null;
SafeIpcPromptContext ipcContext =
SafeNativeMethods.CreateIpcPromptContext(suppressUI,
offline,
hasUserConsent,
parentForm,
symmKey);
try
{
hr = UnsafeFileApiMethods.IpcfDecryptFile(
inputFile,
(uint)flags,
(IpcPromptContext)ipcContext,
outputDirectory,
out decryptedFileNamePtr);
SafeNativeMethods.ThrowOnErrorCode(hr);
decryptedFileName = Marshal.PtrToStringUni(decryptedFileNamePtr);
if (null == decryptedFileName || 0 == decryptedFileName.Length)
{
decryptedFileName = inputFile;
}
}
finally
{
UnsafeFileApiMethods.IpcFreeMemory(decryptedFileNamePtr);
SafeNativeMethods.ReleaseIpcPromptContext(ipcContext);
}
return(decryptedFileName);
}
public static string IpcfDecryptFileStream(
Stream inputStream,
string inputFilePath,
DecryptFlags flags,
ref Stream outputStream,
SafeIpcPromptContext ipcContext = null)
{
int hr = 0;
IntPtr decryptedFileNamePtr = IntPtr.Zero;
string decryptedFileName = null;
ILockBytes ilInputStream = new ILockBytesOverStream(inputStream);
ILockBytes ilOutputStream = new ILockBytesOverStream(outputStream);
if (null == ipcContext) //use the default
{
ipcContext = SafeNativeMethods.CreateIpcPromptContext(false, false, false, IntPtr.Zero);
}
try
{
using (var wrappedContext = ipcContext.Wrap())
{
hr = UnsafeFileApiMethods.IpcfDecryptFileStream(
ilInputStream,
inputFilePath,
(uint)flags,
(IpcPromptContext)wrappedContext,
ilOutputStream,
out decryptedFileNamePtr);
}
SafeNativeMethods.ThrowOnErrorCode(hr);
decryptedFileName = Marshal.PtrToStringUni(decryptedFileNamePtr);
if (null == decryptedFileName || 0 == decryptedFileName.Length)
{
decryptedFileName = inputFilePath;
}
}
finally
{
UnsafeFileApiMethods.IpcFreeMemory(decryptedFileNamePtr);
}
return(decryptedFileName);
}
public static string IpcfDecryptFileStream(
Stream inputStream,
string inputFilePath,
DecryptFlags flags,
bool suppressUI,
bool offline,
bool hasUserConsent,
Form parentWindow,
ref Stream outputStream)
{
return(IpcfDecryptFileStream(
inputStream,
inputFilePath,
flags,
suppressUI,
offline,
hasUserConsent,
IpcWindow.Create(parentWindow).Handle,
ref outputStream));
}
public static string IpcfDecryptFile(
string inputFile,
DecryptFlags flags,
bool suppressUI,
bool offline,
bool hasUserConsent,
Form parentWindow,
SymmetricKeyCredential symmKey,
string outputDirectory = null)
{
return(IpcfDecryptFile(
inputFile,
flags,
suppressUI,
offline,
hasUserConsent,
IpcWindow.Create(parentWindow).Handle,
symmKey,
outputDirectory));
}
public static string IpcfDecryptFileStream(
Stream inputStream,
string inputFilePath,
DecryptFlags flags,
bool suppressUI,
bool offline,
bool hasUserConsent,
System.Windows.Forms.Form parentForm,
ref Stream outputStream)
{
int hr = 0;
IntPtr decryptedFileNamePtr = IntPtr.Zero;
string decryptedFileName = null;
ILockBytes ilInputStream = new ILockBytesOverStream(inputStream);
ILockBytes ilOutputStream = new ILockBytesOverStream(outputStream);
SafeIpcPromptContext ipcContext =
SafeNativeMethods.CreateIpcPromptContext(suppressUI,
offline,
hasUserConsent,
parentForm);
try
{
hr = UnsafeFileApiMethods.IpcfDecryptFileStream(
ilInputStream,
inputFilePath,
(uint)flags,
(IpcPromptContext)ipcContext,
ilOutputStream,
out decryptedFileNamePtr);
SafeNativeMethods.ThrowOnErrorCode(hr);
decryptedFileName = Marshal.PtrToStringUni(decryptedFileNamePtr);
if (null == decryptedFileName || 0 == decryptedFileName.Length)
{
decryptedFileName = inputFilePath;
}
}
finally
{
UnsafeFileApiMethods.IpcFreeMemory(decryptedFileNamePtr);
}
return decryptedFileName;
}
public static string IpcfDecryptFile(
string inputFile,
DecryptFlags flags,
bool suppressUI,
bool offline,
bool hasUserConsent,
System.Windows.Forms.Form parentForm,
SymmetricKeyCredential symmKey,
string outputDirectory = null)
{
int hr = 0;
IntPtr decryptedFileNamePtr = IntPtr.Zero;
string decryptedFileName = null;
SafeIpcPromptContext ipcContext =
SafeNativeMethods.CreateIpcPromptContext(suppressUI,
offline,
hasUserConsent,
parentForm,
symmKey);
try
{
hr = UnsafeFileApiMethods.IpcfDecryptFile(
inputFile,
(uint)flags,
(IpcPromptContext)ipcContext,
outputDirectory,
out decryptedFileNamePtr);
SafeNativeMethods.ThrowOnErrorCode(hr);
decryptedFileName = Marshal.PtrToStringUni(decryptedFileNamePtr);
if (null == decryptedFileName || 0 == decryptedFileName.Length)
{
decryptedFileName = inputFile;
}
}
finally
{
UnsafeFileApiMethods.IpcFreeMemory(decryptedFileNamePtr);
SafeNativeMethods.ReleaseIpcPromptContext(ipcContext);
}
return decryptedFileName;
}