/// <summary>
/// The decrypted data will start header bytes from the start of
/// encryptedContent array.
/// </summary>
internal unsafe void DecryptInPlace(byte[] encryptedContent, out int dataStartOffset, out int dataLen)
{
ThrowIfDisposed();
dataStartOffset = StreamSizes.header;
dataLen = 0;
byte[] emptyBuffer1 = new byte[0];
byte[] emptyBuffer2 = new byte[0];
byte[] emptyBuffer3 = new byte[0];
SecurityBuffer[] securityBuffer = new SecurityBuffer[4];
securityBuffer[0] = new SecurityBuffer(encryptedContent, 0, encryptedContent.Length, BufferType.Data);
securityBuffer[1] = new SecurityBuffer(emptyBuffer1, BufferType.Empty);
securityBuffer[2] = new SecurityBuffer(emptyBuffer2, BufferType.Empty);
securityBuffer[3] = new SecurityBuffer(emptyBuffer3, BufferType.Empty);
int errorCode = SspiWrapper.DecryptMessage(this.securityContext, securityBuffer, 0, false);
if (errorCode != 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(errorCode));
}
for (int i = 0; i < securityBuffer.Length; ++i)
{
if (securityBuffer[i].type == BufferType.Data)
{
dataLen = securityBuffer[i].size;
return;
}
}
OnBadData();
}
internal void DecryptInPlace(byte[] encryptedContent, out int dataStartOffset, out int dataLen)
{
this.ThrowIfDisposed();
dataStartOffset = this.StreamSizes.header;
dataLen = 0;
byte[] data = new byte[0];
byte[] buffer2 = new byte[0];
byte[] buffer3 = new byte[0];
SecurityBuffer[] input = new SecurityBuffer[] { new SecurityBuffer(encryptedContent, 0, encryptedContent.Length, System.IdentityModel.BufferType.Data), new SecurityBuffer(data, System.IdentityModel.BufferType.Empty), new SecurityBuffer(buffer2, System.IdentityModel.BufferType.Empty), new SecurityBuffer(buffer3, System.IdentityModel.BufferType.Empty) };
int error = SspiWrapper.DecryptMessage(this.securityContext, input, 0, false);
if (error != 0)
{
throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
for (int i = 0; i < input.Length; i++)
{
if (input[i].type == System.IdentityModel.BufferType.Data)
{
dataLen = input[i].size;
return;
}
}
this.OnBadData();
}
public byte[] Decrypt(byte[] encryptedContent)
{
if (encryptedContent == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("encryptedContent");
}
ThrowIfDisposed();
SecurityBuffer[] securityBuffer = new SecurityBuffer[2];
securityBuffer[0] = new SecurityBuffer(encryptedContent, 0, encryptedContent.Length, BufferType.Stream);
securityBuffer[1] = new SecurityBuffer(0, BufferType.Data);
int errorCode = SspiWrapper.DecryptMessage(this.securityContext, securityBuffer, 0, true);
if (errorCode != 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(errorCode));
}
for (int i = 0; i < securityBuffer.Length; ++i)
{
if (securityBuffer[i].type == BufferType.Data)
{
return(securityBuffer[i].token);
}
}
OnBadData();
return(null);
}
public byte[] Decrypt(byte[] encryptedContent)
{
if (encryptedContent == null)
{
throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("encryptedContent");
}
this.ThrowIfDisposed();
SecurityBuffer[] input = new SecurityBuffer[] { new SecurityBuffer(encryptedContent, 0, encryptedContent.Length, BufferType.Stream), new SecurityBuffer(0, BufferType.Data) };
int error = SspiWrapper.DecryptMessage(this.securityContext, input, 0, true);
if (error != 0)
{
throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new Win32Exception(error));
}
for (int i = 0; i < input.Length; i++)
{
if (input[i].type == BufferType.Data)
{
return(input[i].token);
}
}
this.OnBadData();
return(null);
}
