DRMDeconstructCertificateChain function (msdrm.h)

Article
02/22/2024

[The AD RMS SDK leveraging functionality exposed by

the client in Msdrm.dll is available for use in Windows Server 2008, Windows Vista, Windows Server 2008 R2, Windows 7, Windows Server 2012, and Windows 8. It may be altered or

unavailable in subsequent versions. Instead, use Active Directory Rights Management Services SDK 2.1,

which leverages functionality exposed by the client in Msipc.dll.]

The DRMDeconstructCertificateChain function retrieves a specified certificate from a certificate chain.

Syntax

DRMEXPORT HRESULT UDAPICALL DRMDeconstructCertificateChain(
  [in]      PWSTR wszChain,
  [in]      UINT  iWhich,
  [in, out] UINT  *pcCert,
  [out]     PWSTR wszCert
);

Parameters

[in] wszChain

The certificate chain.

[in] iWhich

A zero-based index specifying which certificate to retrieve.

[in, out] pcCert

The length of the retrieved certificate, in characters, plus one for a null terminator.

[out] wszCert

The certificate requested.

Return value

If the function succeeds, the function returns S_OK.

If the function fails, it returns an HRESULT value that indicates the error. Possible values include, but are not limited to, those in the following list. For a list of common error codes, see Common HRESULT Values.

Remarks

This function allows an application to retrieve individual certificates from a chain. To determine the number of certificates available, use DRMGetCertificateChainCount.

Memory allocation and deallocation for wszCert are handled by the caller. The szChain buffer length can be obtained from the pcCert parameter by calling this function with NULL in the wszCert parameter.

Requirements

Requirement	Value
Target Platform	Windows
Header	msdrm.h
Library	Msdrm.lib
DLL	Msdrm.dll