ID3D11VideoDevice::CreateCryptoSession method

Creates a cryptographic session to encrypt video content that is sent to the graphics driver.

Syntax

HRESULT CreateCryptoSession(
  [in]  const GUID                *pCryptoType,
  [in]  const GUID                *pDecoderProfile,
  [in]  const GUID                *pKeyExchangeType,
  [out]       ID3D11CryptoSession **ppCryptoSession
);

Parameters

pCryptoType [in]

A pointer to a GUID that specifies the type of encryption to use. The following GUIDs are defined.

Value	Meaning
D3D11_CRYPTO_TYPE_AES128_CTR	128-bit Advanced Encryption Standard CTR mode (AES-CTR) block cipher.

 

pDecoderProfile [in]

A pointer to a GUID that specifies the decoding profile. For a list of possible values, see ID3D11VideoDevice::GetVideoDecoderProfile. If decoding will not be used, set this parameter to NULL.

pKeyExchangeType [in]

A pointer to a GUID that specifies the type of key exchange.

Value	Meaning
D3D11_KEY_EXCHANGE_RSAES_OAEP	The caller will create the session key, encrypt it with RSA Encryption Scheme - Optimal Asymmetric Encryption Padding (RSAES-OAEP) by using the driver's public key, and pass the session key to the driver.

 

ppCryptoSession [out]

Receives a pointer to the ID3D11CryptoSession interface. The caller must release the interface.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

The ID3D11DeviceContext::ClearState method does not affect the internal state of the cryptographic session.

Requirements

See also

ID3D11VideoDevice