//
// Summary:
// Given a pointer to a native cryptosession this method creates the appropriate CryptoHandle type.
//
static internal CryptoHandle Create(InternalRefCountedHandle nativeHandle)
{
CryptoHandle handle = null;
bool mustRelease = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
nativeHandle.DangerousAddRef(ref mustRelease);
RpcInfoCardCryptoHandle hCrypto =
(RpcInfoCardCryptoHandle)Marshal.PtrToStructure(nativeHandle.DangerousGetHandle(),
typeof(RpcInfoCardCryptoHandle));
DateTime expiration = DateTime.FromFileTimeUtc(hCrypto.expiration);
switch (hCrypto.type)
{
case RpcInfoCardCryptoHandle.HandleType.Asymmetric:
handle = new AsymmetricCryptoHandle(nativeHandle, expiration, hCrypto.cryptoParameters);
break;
case RpcInfoCardCryptoHandle.HandleType.Symmetric:
handle = new SymmetricCryptoHandle(nativeHandle, expiration, hCrypto.cryptoParameters);
break;
case RpcInfoCardCryptoHandle.HandleType.Transform:
handle = new TransformCryptoHandle(nativeHandle, expiration, hCrypto.cryptoParameters);
break;
case RpcInfoCardCryptoHandle.HandleType.Hash:
handle = new HashCryptoHandle(nativeHandle, expiration, hCrypto.cryptoParameters);
break;
default:
IDT.DebugAssert(false, "Invalid crypto operation type");
throw IDT.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.GeneralExceptionMessage)));
}
return(handle);
}
finally
{
if (mustRelease)
{
nativeHandle.DangerousRelease();
}
}
}
internal static CryptoHandle Create(InternalRefCountedHandle nativeHandle)
{
CryptoHandle handle = null;
CryptoHandle handle3;
bool success = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
nativeHandle.DangerousAddRef(ref success);
RpcInfoCardCryptoHandle handle2 = (RpcInfoCardCryptoHandle)Marshal.PtrToStructure(nativeHandle.DangerousGetHandle(), typeof(RpcInfoCardCryptoHandle));
DateTime expiration = DateTime.FromFileTimeUtc(handle2.expiration);
switch (handle2.type)
{
case RpcInfoCardCryptoHandle.HandleType.Asymmetric:
handle = new AsymmetricCryptoHandle(nativeHandle, expiration, handle2.cryptoParameters);
break;
case RpcInfoCardCryptoHandle.HandleType.Symmetric:
handle = new SymmetricCryptoHandle(nativeHandle, expiration, handle2.cryptoParameters);
break;
case RpcInfoCardCryptoHandle.HandleType.Transform:
handle = new TransformCryptoHandle(nativeHandle, expiration, handle2.cryptoParameters);
break;
case RpcInfoCardCryptoHandle.HandleType.Hash:
handle = new HashCryptoHandle(nativeHandle, expiration, handle2.cryptoParameters);
break;
default:
throw InfoCardTrace.ThrowHelperError(new InvalidOperationException(Microsoft.InfoCards.SR.GetString("GeneralExceptionMessage")));
}
handle3 = handle;
}
finally
{
if (success)
{
nativeHandle.DangerousRelease();
}
}
return(handle3);
}
