ID3D11VideoDevice::CreateCryptoSession method (d3d11.h)

Article
10/13/2021

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

[in] pCryptoType

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.

[in] pDecoderProfile

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.

[in] pKeyExchangeType

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.

[out] ppCryptoSession

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

Requirement	Value
Minimum supported client	Windows 8 [desktop apps \| UWP apps]
Minimum supported server	Windows Server 2012 [desktop apps \| UWP apps]
Target Platform	Windows
Header	d3d11.h