protected override bool ReleaseHandle()
{
// Make sure not to delete a key that we want to keep in the key container or an ephemeral key
if (!_fPersistKeyInCsp && 0 == (_flags & (uint)CapiHelper.CryptAcquireContextFlags.CRYPT_VERIFYCONTEXT))
{
// Delete the key container.
uint flags = (_flags & (uint)CapiHelper.CryptAcquireContextFlags.CRYPT_MACHINE_KEYSET) | (uint)CapiHelper.CryptAcquireContextFlags.CRYPT_DELETEKEYSET;
SafeProvHandle hIgnoredProv;
bool ignoredSuccess = CapiHelper.CryptAcquireContext(out hIgnoredProv, _containerName, _providerName, _type, flags);
// Ignoring success result code as CryptAcquireContext is being called to delete a key container rather than acquire a context.
// If it fails, we can't do anything about it anyway as we're in a dispose method.
}
bool successfullyFreed = CapiHelper.CryptReleaseContext(handle, 0);
Debug.Assert(successfullyFreed);
SetHandle(IntPtr.Zero);
return(successfullyFreed);
}