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SignerTimeStampEx2 function

The SignerTimeStampEx2 function time stamps the specified subject and optionally returns a pointer to a SIGNER_CONTEXT structure that contains a pointer to a BLOB. This function can be used to perform X.509 Public Key Infrastructure, RFC 3161–compliant, time stamps.

Note  This function has no associated header file or import library. To call this function, you must create a user-defined header file and use the LoadLibrary and GetProcAddress functions to dynamically link to Mssign32.dll.


HRESULT WINAPI SignerTimeStampEx2(
  _Reserved_  DWORD dwFlags,
  _In_        SIGNER_SUBJECT_INFO *pSubjectInfo,
  _In_        LPCWSTR pwszHttpTimeStamp,
  _In_        ALG_ID dwAlgId,
  _In_        PCRYPT_ATTRIBUTES psRequest,
  _In_        LPVOID pSipData,
  _Out_       SIGNER_CONTEXT **ppSignerContext 


dwFlags [in]

Value that specifies the type of time stamp to generate. This parameter can be one of the following values. The values are mutually exclusive.


Specifies an Authenticode time stamp.


Specifies an RFC 3161–compliant time stamp.


pSubjectInfo [in]

The address of a SIGNER_SUBJECT_INFO structure that represents the subject to be time stamped.

pwszHttpTimeStamp [in]

The address of a null-terminated Unicode string that contains the URL of a time stamp server.

dwAlgId [in]

Specifies a hash algorithm to be used for performing RFC 3161–compliant time stamps. This parameter is ignored for Authenticode time stamps.

psRequest [in]

Optional. The address of a CRYPT_ATTRIBUTES structure that contains additional attributes that are added to the time stamp request.

This parameter is optional and can be NULL if it is not included.

pSipData [in]

Optional. A 32-bit value that is passed as additional data to subject interface package (SIP) functions. The format and content of this parameter is defined by the SIP provider.

This parameter is optional and can be NULL if it is not included.

ppSignerContext [out]

Optional. The address of a pointer to the SIGNER_CONTEXT structure that contains the signed BLOB. When you have finished using the SIGNER_CONTEXT structure, free it by calling the SignerFreeSignerContext function.

Return value

If the function succeeds, the function returns S_OK.

If the function fails, it returns an HRESULT value that indicates the error. For a list of common error codes, see Common HRESULT Values.


Minimum supported client

Windows 7 [desktop apps only]

Minimum supported server

Windows Server 2008 R2 [desktop apps only]



See also




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