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NCryptVerifyClaim function (ncrypt.h)

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Verifies a key attestation claim.

Syntax

SECURITY_STATUS NCryptVerifyClaim(
  [in]           NCRYPT_KEY_HANDLE hSubjectKey,
  [in, optional] NCRYPT_KEY_HANDLE hAuthorityKey,
  [in]           DWORD             dwClaimType,
  [in, optional] NCryptBufferDesc  *pParameterList,
  [in]           PBYTE             pbClaimBlob,
  [in]           DWORD             cbClaimBlob,
  [out]          NCryptBufferDesc  *pOutput,
  [in]           DWORD             dwFlags
);

Parameters

[in] hSubjectKey

The subject key handle for the claim.

[in, optional] hAuthorityKey

The authority key handle to use when verifying the claim. This parameter is optional because the authority key is self-contained for certain claim types.

[in] dwClaimType

The type of claim.

[in, optional] pParameterList

An optional parameter list.

[in] pbClaimBlob

The input claim blob.

[in] cbClaimBlob

[out] pOutput

The output blob.

[in] dwFlags

As of Windows 10, no flags are defined. This parameter should be set to 0.

Return value

Returns a status code that indicates the success or failure of the function.

Requirements

Requirement Value
Minimum supported client Windows 10 [desktop apps | UWP apps]
Minimum supported server Windows Server 2016 [desktop apps | UWP apps]
Target Platform Windows
Header ncrypt.h
Library Ncrypt.lib
DLL Ncrypt.dll