PFND3D11_1DDI_GETENCRYPTIONBLTKEY callback function (d3d10umddi.h)

Article
02/22/2024

Queries the key that is used to decrypt the data returned by the EncryptionBlt(D3D11_1) function.

Syntax

PFND3D11_1DDI_GETENCRYPTIONBLTKEY Pfnd3d111DdiGetencryptionbltkey;

void Pfnd3d111DdiGetencryptionbltkey(
  D3D10DDI_HDEVICE hDevice,
  D3D11_1DDI_HCRYPTOSESSION hCryptoSession,
  UINT KeySize,
  VOID *pReadbackKey
)
{...}

Parameters

hDevice

A handle to the display device (graphics context).

hCryptoSession

A handle to the cryptographic session that was created in a call to the driver's CreateCryptoSession function.

KeySize

The size, in bytes, of the encryption key that the pReadBackKey parameter points to.

pReadbackKey

A pointer to a buffer that contains the encryption key.

Return value

None

Remarks

When the GetEncryptionBltKey function is called, the display miniport driver should generate a new encryption key. If the cryptographic session is using the D3DCRYPTOTYPE_AES128_CTR cryptographic type, the driver or graphics adapter should encrypt the data that is referenced by the pReadbackKey parameter by using the session key with the AES-ECB algorithm.

Requirements

Requirement	Value
Minimum supported client	Windows 8,Available in Windows Desktop version 10.0.10030.0
Minimum supported server	Windows Server 2012
Target Platform	Windows
Header	d3d10umddi.h (include D3d10umddi.h)